INSTALLATION, USE AND MAINTENANCE INSTRUCTIONS
FOR
DIRECT CURRENT MACHINES
P-NP-XP-NE SERIES
FRAME SIZES 80-112 (2 POLES)
FRAME SIZES 132-450 (4 POLES)
FRAME SIZES 500-630 (6 POLES)
FRAME SIZES 710-800 (8 POLES)
FRAME SIZES 2110-5813 (4 POLES)
ATTENTION!
SICMEMOTORI electrical machines are used in industrial environments. During functioning
they can be a source of danger, both for persons and objects. Correct installation,
commissioning and maintenance are therefore indispensable. Do not remove or modify
protections.
These instructions do not claim to cover all possible problems and cases that may occur
during use of the electric motors. SICMEMOTORI must be informed immediately about any
problem not considered by these instructions.
Code M-CC-80-800-E-10
ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
INDEX
IMPORTANT NOTES
SAFETY PROVISIONS
1.
1.1.
1.2.
1.3.
1.4.
1.5.
1.6.
1.7.
1.8.
1.9.
1.10.
1.11.
1.12.
1.13.
1.14.
1.15.
GENERALITIES
Applicability and Reference Regulations
Manufacturer and machine identification
Declaration of Conformity
Use and preservation of this manual. Limits for use
Assistance network
Sicmeservice
Liability of the Manufacturer
Warranty conditions
Important warnings
Limits of use
Machine noise level
Transport, receipt and movement of the machines
Storing the machines
NE Series machines
XP Series machines
2.
2.1
2.2
INSTALLATION
Installation of the machine
Positioning
3.
3.1
COUPLING TO THE OPERATIVE MACHINE
Keying of the transmission components (keyway
shaft)
Shrinking on of the transmission components
(keyless)
Direct coupling
Coupling with belts and pulleys
3.2
3.3
3.4
4.
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.7.1
4.7.4
COMMISSIONING
Electric connections
Earth connections
Inspections before start-up
Recommended protection devices
Start-up
Inspections after start-up
Connection wiring diagrams
Motor electric connection diagram – machine with 2-4
poles
Motor electric connection diagram – machine with 6-8
poles
Motor electric connection diagram – machine with
NEMA Standards
Accessories installed
5.
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.7.1
5.8
5.9
MAINTENANCE
Programmed maintenance
Collector
Commutator lathing, mica undercutting and polishing
Commutation
Brushes
Maintenance of the brushes
Replacement of the brushes
Replacement of the brush-holders
Roller bearing
Useful life of the bearings
4.7.2
4.7.3
5.10
5.11
5.12
5.13
5.14
5.15
5.16
5.17
5.18
5.19
5.20
5.21
5.22
5.23
5.24
6.
6.1
6.2
6.3
6.3.1
6.4
6.5
6.6
6.6.1
6.6.2
6.6.3
6.7
6.8
6.9
6.9.1
6.9.2
6.10
Bearing inspections
General data about bearings (standard machines)
Types of bearings and accepted radial loads
(standard machines)
Lubrication programmes
Lubrication. Specific instructions
Complete replacement of the grease
Bearings for special machines
Replacement of bearings
Air filter
Ventilation presence control device
Tachogenerator
Impulse generator (encoder)
Centrifugal relay
Brush wear control device
Heat exchanger
DISASSEMBLY AND RE-ASSEMBLY OF THE
MACHINE
Operations preliminary to disassembly
Disassembly. Similar operations for all machines
Disassembly of the shields (motors 80-630)
Disassembly of end shields (motors 710-800)
Disassembly of the rotors
Replacement of the bearings (motors 80-630)
Replacement of the bearings (motors 710-800)
Mounting new bearings (motors 710-800)
Mounting bearings on the shaft (motors 710-800)
Mounting the bearing in the end shield (motors 710800)
Disassembly of the poles
Re-mounting the machine
Moving the clamp box (motors 132÷315)
Moving the clamp box (motors 355÷450)
Moving the clamp box (motors 500-800)
Disposition and staggering of the brush-holders on the
commutator
7.
7.1
7.2
7.3
7.3.1
TROUBLESHOOTING
Mechanical Anomalies
Electrical anomalies
Commutation and brush anomalies
Sparking
8.
INSTRUCTIONS FOR ELECTRIC REPAIRS
9.
RECOMMENDED SPARE PARTS
10.
DEMONSTRATION GENERAL DRAWINGS AND
NOMENCLATURE
APPENDIX
B
AIR-AIR HEAT EXCHANGER
C
AIR-WATER HEAT EXCHANGER
USER COMMENTS ABOUT THIS MANUAL
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
IMPORTANT NOTES
To highlight the dangers that the operator using the rotating electrical machines may face, the various operations or situations will be
indicated in bold writing and/or with the following warnings, depending on the degree of hazard:
DANGER!
Operations and/or situations that can lead to serious physical injury even death, if the
instructions are not followed scrupulously.
ALARM!
Operations and/or situations that must be followed scrupulously to prevent serious injury to
persons and/or damage to the surrounding environment.
Caution!
Operations and/or situations that must be followed scrupulously to prevent serious injury to
persons, contamination of the surrounding environment and material damage.
Attention!
Operations and/or situations that require particular attention.
SAFETY PROVISIONS
High voltage and rotating parts can cause serious injury and/or fatal wounds. The use of electric machines therefore can be
very dangerous. Installation, functioning and maintenance of electric machines must be carried out by qualified staff, in
compliance with applicable standards and regulations in force in the various countries.
For the electric machines, subject of this manual, it is important to comply with safety provisions to protect staff from
possible injury. In particular, staff must be informed about:
•
Avoiding contact with live circuits or rotating parts;
•
Not by-passing or making safety circuits and barriers inoperative;
•
Avoiding long periods of time near to very noisy machines;
•
Moving the electric machine using the relevant lifting eye-bolts
•
Using all precautions and procedures during movement, lifting, functioning and maintenance of the plant.
The electric machines must be transported, commissioned, maintained and repaired exclusively by qualified staff, with the
supervision of an expert who verifies that these operations are carried out correctly. The qualified staff must be must be
authorised by the Security Manager of the Company where the machine is to be installed. Regarding this, the IEC364
International Standards prohibits the use of unqualified staff for jobs where electric power is present. Before starting any
maintenance procedure, ensure that:
•
The machinery connected to the machine shaft does not cause mechanical rotations;
•
The machine windings have been disconnected from the electric power supply and
there is no possibility of the power supply being applied accidentally;
•
All accessories associated with machine functioning in the work area have been
disconnected from their power supply.
If the machine is not earthed it may cause fatal injury. The machine and plant must be earthed in compliance with the
regulations in force in the various countries.
Any modification of the machine must be authorised in writing by SICMEMOTORI.
Only use the indicated materials (sealers, oils, greases, solvents, etc.).
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
1.
GENERALITIES
1.1
Applicability and Reference Regulations
These instructions can be applied to direct current motors/generators manufactured by SICMEMOTORI, when installed in industrial
environments.
This manual is not valid for asynchronous motors/generators installed in environments with explosion risks.
This manual has been drawn up in compliance with 2006/42/EC Machine Directive and UNI EN292-1 and 292-2 Standards.
1.2
Identification of the Manufacturer and the machine
Every direct current machine produced by SICMEMOTORI has an identification plate realised in conformity with IEC 60034-8
Standards. The plate is shown in Fig. 1.
Figure 1.
Meaning of the symbols:
TIPO/TYPE
N
P
VEL/SPEED
ARM/ARM(V)
ARM/ARM (A)
CAMPO/FIELD (V)
CAMPO/FIELD (A)
MASSA/MASS
2
J(kgm )
ANNO/MESE-YEAR/MONTH
SERV/DUTY
IP
IC
IM
CL.ISOL/INS.CL
TEMP.AMB/AMB.TEMP.
CUSC.LA/DR.END BEAR.
CUSC.LO/COMM.END BEAR.
INT.LUBR/LUBR.INT.
type of motor (according to SICMEMOTORI codes)
serial number
nominal power
speed
armature voltage
armature current
excitement voltage
excitement current
weight of the motor complete with ventilation system
moment of inertia of the rotor
year/month of manufacture
service
protection level
cooling method
mounting and positions
isolation class (the temperature rise is also given if different to class H)
environmental temperature
drive end bearing
commutator end bearing
bearing lubrication interval
All machines have EC marking.
1.3
Declaration of conformity
The motors described in this catalogue satisfy the essential requisites of the following Directives:
- 93/68/CEE Low Voltage Directive
Reference has also been made to the following directives, specifically for the reasons listed as follows:
- EMC 89/336/EEC (Electromagnetic Compatibility) Directive
- Machine Directive2006/42/CE
The electric motors/generators are components that are incorporated into other machines, systems and
plants and therefore the resulting EMC behaviour is under the responsibility of the Manufacturer of the
machine or plant incorporating the motor/generator.
With reference to the 2006/42/EC Directive, it must be specified that the motors/generators must be installed in compliance with the
installation instructions and cannot be put into service until the machine in which they are incorporated has been declared in
compliance with the 2006/42/EC Machinery Directive.
1.4
Use and preservation of this manual. Limitations of use.
This manual has been realised to make the use of this product simple and safe for the staff in charge. The staff must be:
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
•
expert in the use of products destined exclusively to industrial and professional use;
•
informed about dangers that can occur from the use of rotating electric machines for power supply voltages up to 1000 V.
On written request SICMEMOTORI will train the client’s staff (or final user’s) on the correct use and maintenance of the products, both
at the installation site and at SICMEMOTORI’s establishment. For further information call SICMESERVICE services.
This manual must always be available to the staff in charge of using the motors/generators, and a copy must be preserved (by the
user) for future reference.
Other copies and updates can be requested directly from:
SICME MOTORI srl
Strada del Francese 130
10156 Turin – Italy
tel. 011-4076311
fax 011-4500047
e-mail: sicmeservice@sicmemotori.com
can be downloaded from the SICMEMOTORI web site www.sicmemotori.com.
SICMEMOTORI reserves the right to carry out any variation to this manual, which it retains necessary, without the obligation to update
previous manuals.
1.5
Assistance networks
SICMEMOTORI has created a network of authorised assistance and repair workshops worldwide. If necessary the user can refer to
them directly.
The list of these workshops, which is constantly updated, is published on the SICMEMOTORI web site www.sicmemotori.com, and
may be easily downloaded.
1.6
Sicmeservice
SICMESERVICE offers itself for maintenance services for the optimisation of production processes, which cover all electric motors.
The services offered are:
Predictive maintenance
Allows to evaluate the state of the motors in advance and plan any precautionary maintenance when programmed plant standstill takes
place.
Precautionary maintenance
Precautionary services are carried out in our workshops, and consist of a series of operations to restore the original state of the motors.
Corrective maintenance
Allows to highlight the necessity for more crucial interventions. Our technical office is able to evaluate the interventions necessary to
restore complete functionality.
In the case of uneconomic repair, the technical offices are able to carry out the correct dimensioning for the replacement of any type of
motor of any mark with one that is technologically more updated.
For information about this service contact:
Sig. A Dolfi
Tel. 0039-011-4076464
Fax 0039-011-4500047
Cell. 0039-348-2716623
e-mail: service@sicmemotori.com
1.7
Liability of the Manufacturer
SICMEMOTORI assumes responsibility for damage to persons or objects attributed by Italian Law Presidential Decree 224 dated 2405-1988 (which has adopted EEC Directive 85/374) and successive amendments, as long as known and in force at the time of the
order. Responsibility will be forfeited if the provisions of these instructions have not been respected, or if the products have been
tampered with, for repair or any other cause, by third parties that have not been authorised in writing by SICMEMOTORI.
1.8
Warranty Conditions
SICMEMOTORI guarantees its products for 12 months from the date of delivery. The warranty exclusively concerns manufacturing
faults that can be blamed on SICMEMOTORI, which, in the eventuality, has the faculty to choose whether to repair or replace the
product or the faulty part. The cost and risk of transport of the faulty part from the Client to SICMEMOTORI is the responsibility of the
Client. The warranty is void in the cases of tampering or interventions that have not been authorised by SICMEMOTORI and does not
cover product parts that are subject to wear (e.g.: bearings, brushes, filters…). The warranty is also void in the case of failure to
comply with the provisions indicated in the INSTALLATION, USE AND MAINTENANCE INSTRUCTIONS, available on request of the
Client. The extraction is contained inside the terminal box of all machines supplied by SICMEMOTORI. If a piece must be replaced or
repaired, the warranty is renewed only for this piece. The Client cannot object to pay SICMEMOTORI missing payments for the
supply depending on the effectiveness of the warranty.
The Client will forfeit the warranty whenever he has omitted the relative declaration for the purpose and effect of art. 1495 1st
paragraph of the Civil Code.
1.9
Important information
For correct use of our machine always take the following information into consideration:
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Design and manufacture. In compliance with IEC 60034 Standards, according to table a) indicated below:
IEC
CEI
60034-1
EN 60034-1
Rating and performance
60034-2
EN 60034-2
Methods for determining losses and efficiency
60034-5
EN 60034-5
Classification of protection levels (IP code)
60034-6
EN 60034-6
Methods of cooling (IC code)
60034-7
EN 60034-7
Types of construction, mounting arrangements and terminal
box position (IM code)
60034-8
EN 60034-8
Terminal markings and direction of rotation
34-9
EN 60034-9
Noise limits
60034-14
EN 60034-14
Mechanical vibrations of rotating parts
72-1
72-1
Size and power of the rotating machines
1293
16-8
Marking of the electrical appliances
UNI ISO 2768/1-2
UNI 9321
73/23/EEC
89/336/EEC (EMC)
2006/42/EC
Title
General tolerance
Shaft end
Low Voltage Directive
Electromagnetic Compatibility Directive
Machine Directive
Table a)
Tests. All direct current machines produced by SICMEMOTORI undergo complete testing in our Test Room, where their compliance
with contractual requirements are verified.
Quality Assurance. All of the production process is managed by the internal Quality Assurance System, which is responsible for
compliance to the procedures and manufacture instructions, controls, tests and inspections issued by the internal quality system.
The internal Quality System is controlled by the CSQ (*) in compliance with ISO 9001-2000 European Standards.
(*) The Quality Certification System CSQ is managed by IMQ in collaboration with the CESI, and is part of the CISQ convention (Italian
Certification of Quality Systems) and adheres to the EQNET international agreement.
1.10
Limitations of Use
The direct current machines manufactured by SICMEMOTORI are adapt for use in an industrial environment, for application in plants
such as (but not only) the iron and steel industry, plastic materials, rubber, working ferrous and non ferrous metals, cables, plants for
transport of persons (cable cars, chairlifts, etc.) or for movement of goods (cranes, conveyor belts, etc.), cement, in the food industry,
paper and printing, in mining (exclusively environments without an explosive atmosphere), etc.. Therefore these products are
reserved exclusively for professional use.
Installation environment. It is envisioned that the machine should work in a dry, clean environment. The presence of high humidity (or
installation outside), and/or aggressive agents or dust in the atmosphere, must be communicated when ordering; the manufacturing designs to be
adopted in order to obtain acceptable functioning in these conditions (not normal) must be agreed, and indicated in the order
confirmation. Finally, the machine is designed, except when different agreements have been made with the client:
•
for environmental temperatures of –15 +40°C
•
for max. height above sea-level of 1000 mt.
Different installation height or temperature conditions, generally lead to variations of the nominal values of performance (consult
SICMEMOTORI). See point 1.12 for the lifting problem when the environmental temperature is very low.
Power supply. The machine is envisioned to supply contract performance (power – torque - speed) if powered (armature and field
circuits) in nominal conditions, as stated on the plate. Incorrect power supplies can lead to the impossibility to supply contract
performance or inefficiency for faults or intervention of the protections
Protections. The machine must be permanently protected against unacceptable power supply or load situations and against the
development of faults SICMEMOTORI is always available for collaboration in identifying the most adapt protections for every particular
case. Lack of/incorrect calibration or inefficiency of the necessary protections leads to the exclusion of responsibility of SICMEMOTORI
in the case of faults or inefficiency.
A Electric protections
The machines are normally supplied with some electrical protections that must be connected and whose functioning must be verified
before machine commissioning.
The machines must also be earthed before commissioning (see par. 4.2).
B Mechanical protections
Before commissioning the machines, the user must check that all mechanical protections on the machines are operational. In
particular, the machines must not be commissioned if:
•
the machine has not been adequately fixed to its base (see par.2.2);
•
the machine hatches have not been closed correctly;
•
the lid of the main terminal box (and auxiliary if existing) has not been closed adequately with its screws, to prevent accidental
contact with live parts;
•
the fan, if present, does not have the filter mounted or, if missing, a protection network to prevent accidental contact with the
electric fan rotor.
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
As well as the mechanical protections inherent to the machines, the user must also check that all parts coupled to the machines and
moving parts (joints, pulleys, transmission belts, etc.) are adequately protected from accidental contact.
C Protection from heat hazard
The external surfaces of direct current machines may reach very high temperatures during functioning (thermal risk). For this reason
this thermal risk is indicated on plates affixed to the surfaces of the machine itself. The user must prepare protective barriers whenever
the machines are installed in areas where the risk of accidental contact with the operators is present.
D Protections against sound level
Before using the machine, the user must ensure that all protections against noise emitted by the machine are functioning.
SICMEMOTORI is available with its experience in this subject.
1.11
Machine noise level
The noise of the machine expressed in “sound pressure” is detected using a sound level metre functioning in an
open-circuit operation, with nominal power supply and ventilation system functioning (IEC 34-9 Standard). The
sound level metre is positioned at the centre of the 4 sides of the direct current machine being tested and parallel
to the fan air inlet (or of the fan asynchronous motors if the machine has been cooled by the heat exchanger) at a
distance of about 1 mt. The average value among the values obtained is the noise level adopted by
SICMEMOTORI.
The noise values of SICMEMOTORI machines are stated in table 1.11 below.
Motor
80 N
90 N
100 N
112 N
132 N
132 K
160 N
160 K
180 N
180 K
200 N
200 K
225 N
225 K
250 N
250 K
280 K
315 K
355 K
400 K
450 K
500 K
560 K
630 K
710 K
800 K
Sound pressure
(dBA)
Cooling
IC06 (PVA)
76
76
76
80
80
80
80
80
82
82
85
85
85
85
85
85
85
85
85
85
85
85
85
90
90
90
Sound pressure
(dBA)
Cooling
IC17 (BCA)
76
76
76
80
80
80
80
80
82
82
85
85
85
85
85
85
85
85
85
85
85
85
85
90
90
90
Sound pressure
(dBA)
Cooling
IC37 (CBA)
76
76
76
80
80
80
80
80
80
80
80
82
82
82
82
82
82
82
82
82
82
84
84
84
85
90
Sound pressure
(dBA)
Cooling
IC86W (CBARH)
--------80
80
80
80
80
80
80
82
82
82
82
82
82
82
82
82
82
84
84
84
85
90
Sound pressure
(dBA)
Cooling
IC666 (CBARO)
--------86
86
86
86
86
86
86
86
86
86
86
86
86
86
90
90
90
90
90
90
95
95
Table 1.11
The values in this table refer to the values emitted by the machines and are not necessarily the values to which the workers will be
exposed. This also depends on the presence of other machines, the installation environment, type of working, etc. The user must
decide if the afore-stated values lead to the necessity to install noise protection barriers.
1.12 Transport, receipt and movement of the machine
The machines leave the factory ready for installation, unless agreed differently. The machines are not packaged unless specifically
requested on ordering.
Attention:
At destination it is advised to examine the state of the machines to check that they have not been damaged
during transport; in this case inform the carrier immediately so as not to loose the warranty. The claim must
arrive at SICMEMOTORI within 8 days of receiving the goods!
When moving the machines, they must be lifted by attaching them to the relevant eye-bolts on the machine’s surface. With exception
of motors with P132÷P200 axis height and heat exchanger mounted in high position, never use the eyebolts positioned on the cooling devices (electric fans, heat exchangers, etc.) to move the machine itself. If
the load is unbalanced because of joints or particular executions, balance using additional ropes.
Lifting using eye-bolts must be avoided if the environmental temperature is lower than –15°C .
The following table supplies machine weights, complete with cooling systems. Remember that the weights are also
stated on the main plates on the machines themselves.
Motor size
NP 80 NS2
PVA-BPVA
BPVAB
kg
CBA-BCA
CNV-CNVC
kg
CBARH
kg
CBARO
kg
36
31
---
---
Motor size
NP 80 NM2
PVA-BPVA
BPVAB
kg
CBA-BCA
CNV-CNVC
kg
CBARH
kg
CBARO
kg
40
35
---
---
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Motor size
NP 80 NL2
NP 90 NR2
NP 90 NS2
NP 90 NM2
NP 90 NL2
NP 100 NR2
NP 100 NS2
NP 100 NM2
NP 100 NL2
P 112 NS2
P 112 NM2
P 112 NL2
P 132 N(K)S2
P 132 N(K)M2
P 132 N(K)L2
P 132 N(K)X2
P 160 N(K)S2
P 160 N(K)M2
P 160 N(K)L2
P 160 N(K)X2
P 180 N(K)S4
P 180 N(K)M4
P 180 N(K)L4
P 180 N(K)X4
P 200 N(K)S4
P 200 N(K)M4
P 200 N(K)L4
P 200 N(K)X4
NP 225 N(K)S5
NP 225 N(K)M5
NP 225 N(K)L5
NP 250 NK)S5
NP 250 N(K)M5
NP 250 N(K)L5
NP 280 KS6
NP 280 KM6
NP 280 KL6
NP 315 KR 6
NP 315 KS 6
NP 315 KM 6
NP 315 KL 6
NP 315 KR 8
NP 315 KS 8
NP 315 KM 8
NP 315 KL 8
NP 355 KR 4
NP 355 KS 4
NP 355 KM 4
NP 355 KL 4
NP 355 KX 4
NP 355 KR 6
NP 355 KS 6
NP 355 KM 6
NP 355 KL 6
NP 355 KX 6
NP 355 KR 7
NP 355 KS 7
NP 355 KM 7
NP 355 KL 7
NP 355 KX 7
NP 400 KR 4
NP 400 KS 4
NP 400 KM 4
NP 400 KL 4
NP 400 KX 4
NP 400 KR 6
NP 400 KS 6
NP 400 KM 6
NP 400 KL 6
NP 400 KX 6
NP 400 KR 7
NP 400 KS 7
NP 400 KM 7
NP 400 KL 7
NP 400 KX 7
NP 450 KRS 4
NP 450 KRM 4
NP 450 KR 4
NP 450 KS 4
NP 450 KSM 4
NP 450 KM 4
NP 450 KML 4
NP 450 KL 4
NP 450 KX 4
NP 450 KRS 6
PVA-BPVA
BPVAB
kg
CBA-BCA
CNV-CNVC
kg
CBARH
kg
CBARO
kg
46
53
60
69
79
81
93
107
114
113
128
143
135
150
170
185
235
265
305
330
370
415
475
515
490
555
640
690
910
970
1030
1200
1275
1365
1665
1785
1925
1905
2155
2305
2480
1960
2210
2360
2535
2545
2860
3050
3275
3520
2615
2930
3120
3345
3590
2650
2965
3155
3380
3625
3285
3650
3870
4150
4450
3375
3740
3960
4240
4540
3420
3785
4005
4280
4585
3600
3800
4020
4260
4570
4870
5220
5620
6060
3700
41
48
55
64
74
73
85
99
106
105
120
135
125
140
160
175
220
250
290
315
345
390
450
490
455
520
605
655
865
925
985
1145
1220
1310
1600
1720
1860
1795
2045
2195
2370
1850
2100
2250
2425
2405
2720
2910
3135
3380
2475
2760
2980
3205
3450
2510
2825
3015
3240
3485
3095
3460
4680
3960
4260
3185
3550
3770
4050
4350
3230
3595
3815
4090
4395
3380
3580
3800
4040
4350
4650
5000
5400
5840
3480
------------------------195
210
230
245
315
345
385
410
470
515
575
615
625
690
775
825
1060
1120
1180
1405
1480
1570
1955
2075
2215
2175
2425
2575
2750
2230
2480
2630
2805
2815
3130
3320
3545
3790
2885
3200
3390
3615
3860
2920
3235
3425
3650
3895
3565
3930
4150
4430
4730
3655
4020
4240
4520
4820
3700
4065
4285
4560
4865
3950
4150
4370
4610
4950
5250
5600
6000
6450
4050
------------------------205
220
240
255
325
355
395
420
480
525
585
625
625
690
775
825
1080
1140
1200
1425
1500
1590
1970
2090
2230
2210
2460
2610
2785
2265
2515
2665
2840
2855
3170
3360
3585
3830
2925
3240
3430
3655
3900
2960
4275
3465
3690
3935
3615
3980
4200
4480
4780
3704
4070
4290
4570
4870
3750
4115
4335
4610
4915
3990
4190
4410
4650
5000
5300
5650
6050
6500
4090
Motor size
NP 450 KRM 6
NP 450 KR 6
NP 450 KS 6
NP 450 KSM 6
NP 450 KM 6
NP 450 KML 6
NP 450 KL 6
NP 450 KX 6
NP 450 KRS 8
NP 450 KRM 8
NP 450 KR 8
NP 450 KS 8
NP 450 KSM 8
NP 450 KM 8
NP 450 KML 8
NP 450 KL 8
NP 450 KX 8
NP 500 KRS 6
NP 500 KRS 7
NP 500 KRM 6
NP 500 KRM 7
NP 500 KR 6
NP 500 KR 7
NP 500 KS 6
NP 500 KS 7
NP 500 KSM 6
NP 500 KSM 7
NP 500 KM 6
NP 500 KM 7
NP 500 KML 6
NP 500 KML 7
NP 500 KL 6
NP 500 KL 7
NP 500 KX 6
NP 500 KX 7
NP 560 KRS 6
NP 560 KRS 7
NP 560 KRM 6
NP 560 KRM 7
NP 560 KR 6
NP 560 KR 7
NP 560 KS 6
NP 560 KS 7
NP 560 KSM 6
NP 560 KSM 7
NP 560 KM 6
NP 560 KM 7
NP 560 KML 6
NP 560 KML 7
NP 560 KL 6
NP 560 KL 7
NP 560 KX 6
NP 560 KX 7
NP 630 KRS 6
NP 630 KRS 8
NP 630 KRM 6
NP 630 KRM 8
NP 630 KR 6
NP 630 KR 8
NP 630 KS 6
NP 630 KS 8
NP 630 KSM 6
NP 630 KSM 8
NP 630 KM 6
NP 630 KM 8
NP 630 KML 6
NP 630 KML 8
NP 630 KL 6
NP 630 KL 8
NP 630 KX 6
NP 630 KX 8
NP 710 KRS 6
NP 710 KRS 8
NP 710 KRM 6
NP 710 KRM 8
NP 710 KR 6
NP 710 KR 8
NP 710 KS 6
NP 710 KS 8
NP 710 KSM 6
NP 710 KSM 8
NP 710 KM 6
NP 710 KM 8
NP 710 KML 6
NP 710 KML 8
PVA-BPVA
BPVAB
kg
CBA-BCA
CNV-CNVC
kg
CBARH
kg
CBARO
kg
3900
4120
4360
4670
4970
5320
5720
6160
3800
4000
4220
4460
4770
5070
5420
5820
6260
5120
5185
5320
5385
5550
5615
5770
5835
5970
6035
6250
6315
6520
6858
6870
6935
7270
7335
5430
5510
5700
5780
5990
6070
6350
6430
6700
6780
7120
7200
7600
7680
8150
8230
8780
8860
6980
7280
7380
7680
7830
8130
8330
8630
8830
9130
9430
9730
10230
10530
11030
12330
11930
12230
9150
9450
9600
9900
10100
10400
10750
11050
11350
11650
12000
12300
12900
13200
3680
3900
4140
4450
4750
5100
5500
5940
3580
3780
4000
4240
4550
4850
5200
5600
6040
4850
4915
5050
5115
5250
5315
5500
5565
5700
5765
5970
6035
6250
6315
6600
6665
7000
7065
5130
5210
5400
5480
5690
5770
6050
6130
6400
6480
6820
6900
7300
7380
7850
7930
8480
8560
6600
6900
7000
7300
7450
7750
7950
8250
8450
8750
9050
9350
9850
10150
10650
11950
11550
11850
8700
9000
9150
9450
9650
9950
10300
10600
10900
11200
11550
11850
12450
12750
4250
4470
4710
5050
5350
5700
6100
6550
4160
4360
4580
4820
5160
5460
5810
6210
6660
5500
5565
5700
5765
5900
5965
6150
6215
6350
6415
6620
6685
6900
6965
7250
7315
7650
7715
5930
6010
6200
6280
6490
6570
6850
6930
7230
7310
7650
7730
8150
8230
8700
8780
9330
9410
7500
7800
7900
8200
8350
8650
8850
9150
9350
9650
9950
10250
10750
11050
11550
11850
12450
12750
9750
10050
10200
10500
10700
11000
11350
11650
11950
12250
12650
12950
13550
13850
4290
4510
4750
5100
5400
5750
6150
6600
4210
4310
4620
4870
5220
5520
5870
6270
6720
5530
5595
5730
5795
5930
5995
6180
6145
6380
6445
6650
6715
6930
6995
7280
7345
7680
7745
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Motor size
NP 710 KL 6
NP 710 KL 8
NP 710 KX 6
NP 710 KX 8
NP 800 KRS 6
NP 800 KRS 8
NP 800 KRM 6
NP 800 KRM 8
NP 800 KR 6
NP 800 KR 8
NP 800 KS 6
NP 800 KS 8
PVA-BPVA
BPVAB
kg
CBA-BCA
CNV-CNVC
kg
CBARH
kg
13950
14150
14850
15150
13400
13700
14400
14700
10300
10650
11050
11400
11500
11850
12500
12850
14550
14850
15550
15850
11500
11850
12250
12600
12700
13050
13800
14150
CBARO
kg
Motor size
PVA-BPVA
BPVAB
kg
CBA-BCA
CNV-CNVC
kg
CBARH
kg
13100
13450
13950
14300
15000
15350
16200
16550
17450
17800
14400
14750
15250
15600
16300
16650
17500
17850
18750
19100
NP 800 KSM 6
NP 800 KSM 8
NP 800 KM 6
NP 800 KM 8
NP 800 KML 6
NP 800 KML 8
NP 800 KL 6
NP 800 KL 8
NP 800 KX 6
NP 800 KX 8
CBARO
kg
To lift the motor, check the weight on the plate and use lifting devices with a greater capacity.
Attention: machine unloading and movement operations must be carried out by expert staff
(slingers, crane drivers, fork lift drivers, etc.); it is recommended that these operations are assisted
by a person on the ground who gives signals.
Position of the barycentre – the “X” quote is the length of the magnetic stator pack
1.13
Storing the machines
If the machines are not commissioned immediately, they must be placed in a covered, clean and dry environment. The minimum
storage temperature must not be less than –30°C . If the machine must be stored in temperatures less than –30°C, agreements
must be made with SICMEMOTORI on making the order. If the machine must be stored for a long period of time (several months) or if
long periods of inactivity are envisioned the following precautions must be taken:
•
lift the brushes from the commutator to prevent the formation of damaging marks on the latter;
•
check the insulation resistance periodically (see par. 4.3). The isolations must be protected from humidity;
•
turn the shaft a few times to prevent damage on the bearing tracks;
•
it is recommended to check the end of the shaft to verify the state of the protective paint to prevent corrosion and oxidation. If
necessary treat with paint or anti-corrosive grease.
At this time the ball bearings do not require maintenance, as the amount of grease that has already been introduced is sufficient to
keep them lubricated.
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
1.14
NE series machines
The machines in the NE series comply dimensionally with NEMA Standards. All installation, use and maintenance operations described
successively are also valid for these motors. Regarding the various sizes, the table of equivalence shown below is valid.
NEMA size
NEMA Sicme size
IEC Sicme size
NEMA size
NEMA Sicme size
IEC Sicme size
2110ATZ
2111ATZ
2112ATZ
2113ATZ
2510ATZ
2511ATZ
2512ATZ
2512ATZ
2812ATZ
2813ATZ
2814ATZ
3212ATZ
3213ATZ
3612ATZ
NE132NS2
NE132NM2
NE132NL2
NE132NX2
NE160NS2
NE160NM2
NE160NL2
NE160NX2
NE180NM4
NE180NL4
NE180NX4
NE200KL4
NE200KX4
NE225KS5
P132NS2
P132NM2
P132NL2
P132NX2
P160NS2
P160NM2
P160NL2
P160NX2
P180NM4
P180NL4
P180NX4
P200KL4
P200KX4
NP225KS5
3613ATZ
4012ATZ
4013ATZ
4014ATZ
4412ATZ
4413ATZ
5011ATZ
5012ATZ
5013ATZ
5810ATZ
5811ATZ
5812ATZ
5813ATZ
NE225KM5
NE250KS5
NE250KM5
NE250KL5
NE280KS6
NE280KL6
NE315KS6
NE315KM6
NE315KL6
NE355KR6
NE355KM6
NE355KL6
NE355KX6
NP225KM5
NP250KS5
NP250KM5
NP250KL5
NP280KS6
NP280KL6
NP315KS6
NP315KM6
NP315KL6
NP355KR6
NP355KM6
NP355KL6
NP355KX6
Therefore, to have the instructions relative to a NE160NX2 motor (NEMA size 2512ATZ), refer to the instructions in this manual relative
to IEC Sicme P160 NX2 motor size.
1.15
XP series machines
Machines deriving from those in the NP Series, which preserve all features, except for the presence of two 2 commutators: one from
the drive end, one from the commutator end.
All installation, use and maintenance operations described in this file are therefore valid for this machine, with the recommendation that
the controls relative to the commutator, brushes and brush-holders must be carried out for both commutators.
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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10
ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
2
INSTALLATION
2.1
Installation of the machines
The machine must be positioned so that access to the commutator end brushes and the drive end lateral hatches is always easy. Install the
machine in compliance with the mountings and positions IM, the type of cooling IC and the level of protection IP defined in the
establishment and specified on the plate.
If the operator does not have the machine’s dimension diagram, he can request it, by communicating the serial number printed on the
main plate, from the SICMEMOTORI technical office.
2.2
Positioning
Machines with IM 1001 positioning (B3, with horizontal axis with feet), must be fixed using 4 screws with a diameter adequate to the
holes in the feet (see table 2.a). In the case of double or triple motors, consult SICMEMOTORI.
The resting surface must be uniform, with tolerance so that the maximum difference between the feet is not greater than 0.1 mm (if necessary, use
alignment thicknesses) and it must be able to support the torques generated by the electric machines (see table 2.c).
In the case of a flanged machine with horizontal axis (IM3001 B5) or vertical axis (IM3011 - V1), fixing to the counter-flange must be
carried out with screws according to 2.b and corresponding to the holes in the flange. The surface of the counter-flange must be
worked accurately, to guarantee flatness and perpendicularity to the axis of the controlled machine, with tolerance at least
corresponding to the normal class according to DIN 42955. Alignment thicknesses are not accepted.
The resting surface and/or the counter-flange must be rigid and without deformations and vibrations.
The machine with IM 2001 mounting and positioning and derivatives (with shaft and flange) must be installed by referring to table 2.a
regarding feet screw fasteners and table 2.b for flange screw fasteners.
Motor
NP80
NP90
NP100
P 112
P 132
P 160
P 180
P 200
NP225
NP250
NP280
NP315
NP355
NP400
NP450
NP500
NP560
NP630
NP710
NP800
Screws *
M8 x25
M8 x25
M8 x25
M10x40
M10x40
M12x40
M12x40
M16x40
M16x40
M20x50
M20x60
M24x70
M24x70
M30x70
M30x90
M36x100
M36x120
M36x120
M36x130
M36x130
Coupling torque (Nm) **
25
25
25
50
50
85
85
200
200
400
400
700
700
1370
1370
2150
2150
2150
2150
2150
Table 2.a – Screw dimensions for fixing the motor to the base and coupling torques
*The length of the screw is to be intended as the maximum length for hexagon head screws inserted from the foot towards
the base.
** The torques indicated are for metric screws with large pitch material 8G
Flange hole
interaxis
diameter
165
215
265
300
350
400
500
600
740
Screws *
Coupling torque (Nm) **
M10X30
M12X35
M12X35
M16X45
M16X45
M16X50
M16X50
M20X65
M20X65
50
85
85
200
200
200
200
400
400
Table 2.b – Screw dimensions for fixing the motor to the counter-flange and coupling torques
* The length of the screw is to be intended as the maximum length for hexagon head screws inserted from the foot towards
the counter-flange
** The torques indicated are for metric screws with large pitch material 8G
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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11
ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Table 2.c supplies the value in N of the short circuit dynamic load for each
size of motor, necessary to calculate foundations and relative anchorage.
Motor size
Max. short circuit
dynamic load (*) (N)
NP 80 NS
NP 80 NM
NP 80 NL
NP 90 NR
NP 90 NS
NP 90 NM
NP 90 NL
NP100NR
NP100NS
NP100NM
NP100NL
P 112 NS
P 112 NM
P 112 NL
P 132 N(K)S
P 132 N(K)M
P 132 N(K)L
P 132 N(K)X
P 160 N(K)S
P 160 N(K)M
P 160 N(K)L
P 160 N(K)X
P 180 N(K)S
P 180 N(K)M
P 180 N(K)L
P 180 N(K)X
P 200 N(K)S
P 200 N(K)M
P 200 N(K)L
P 200 N(K)X
NP225N(K)S
NP225N(K)M
NP225N(K)L
NP250N(K)S
NP250N(K)M
NP250N(K)L
± 880
± 1.200
± 1.450
± 1.570
± 2.000
± 2.620
± 3.070
± 2.560
± 3.250
± 3.940
± 4.250
± 2.900
± 3.700
± 4.480
± 4.400
± 5.550
± 6.950
± 7.870
± 8.250
± 10.730
± 13.200
± 14.950
± 12.900
± 16.500
± 20.800
± 22.950
± 16.700
± 21.400
± 28.000
± 31.500
± 37.600
± 42.100
± 47.100
± 49.200
± 54.900
± 60.300
Motor size
NP280KS
NP280KM
NP280KL
NP315KS
NP315KM
NP315KL
NP355KR
NP355KS
NP355KM
NP355KL
NP355KX
NP400KR
NP400KS
NP400KM
NP400KL
NP400KX
NP450KRS
NP450KRM
NP450KR
NP450KS
NP450KSM
NP450KM
NP450KML
NP450KL
NP450KX
NP500KRS
NP500KRM
NP500KR
NP500KS
NP500KSM
NP500KM
NP500KML
NP500KL
NP500KX
Max. short circuit
dynamic load (*) (N)
± 66.300
± 73.300
± 83.100
± 79.700
± 89.700
± 101.900
± 74.000
± 95.000
± 105.900
± 119.600
± 135.000
± 85.000
± 110.700
± 122.400
± 137.000
± 153.900
± 75.000
± 88.400
± 94.800
± 106.300
± 118.300
± 133.200
± 148.800
± 167.500
± 188.700
± 85.500
± 98.000
± 107.000
± 120.000
± 131.000
± 153.000
± 167.000
± 191.000
± 218.000
Motor size
NP560KRS
NP560KRM
NP560KR
NP560KS
NP560KSM
NP560KM
NP560KML
NP560KL
NP560KX
NP630KRS
NP630KRM
NP630KR
NP630KS
NP630KSM
NP630KM
NP630KML
NP630KL
NP630KX
NP710KRS
NP710KRM
NP710KR
NP710KS
NP710KSM
NP710KM
NP710KML
NP710KL
NP710KX
NP800KRS
NP800KRM
NP800KR
NP800KS
NP800KSM
NP800KM
NP800KML
NP800KL
NP800KX
Max. short circuit
dynamic load (*) (N)
± 102.000
± 118.000
± 129.000
± 145.000
± 163.000
± 181.500
± 206.000
± 231.000
± 253.000
± 116.500
± 130.000
± 146.000
± 161.000
± 177.000
± 196.000
± 217.000
± 245.000
± 278.000
± 121.000
± 137.000
± 153.000
± 170.000
± 189.000
± 208.000
± 236.000
± 261.000
± 296.000
± 173.000
± 195.000
± 220.000
± 244.000
± 274.000
± 306.000
± 342.000
± 385.000
± 432.000
(*) on every area B. The tension of the compression load (+) or traction load (-) is linked to the electrodynamic reaction and
depends on the direction of rotation.
TAB. 2.c – Short circuit dynamic loads
Caution!
The machine base, whether it is in iron or cement grout, must be carried out by staff expert in
this type of work.
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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12
ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
3.
COUPLING TO THE OPERATIVE MACHINE
The coupling part and the type of transmission must be selected and planned on the basis of particular uses. The client is responsible
for this choice and planning: SICMEMOTORI is responsible for the correctness of technical data of its competence, which is supplied
on the client’s request. Before mounting the coupling part it is necessary to remove any protective paint that covers the end of the
shaft. Do not use emery cloth. Working tolerance of the hole must correspond to the nominal diameter of the shaft indicated on the
dimension diagrams with ISO system tolerance.
3.1
Keying of the transmission gears (shaft with cotter)
SICMEMOTORI motors are always balanced using a cotter (unless differently requested on ordering). Therefore the transmission
gears must also be balanced using a cotter.
Key the transmission part by referring to the Manufacturer’s detailed instructions.
Fig. 3.a – Example of keying the
transmission gears using the threaded
hole on the end of the motor shaft
a)
b)
c)
Motor
Transmission part
Mounting equipment
3.2
Shrinking on the transmission gears (shafts without cotter)
Ensure that the coupling joint has been balanced WITHOUT the cotter.
Before proceeding with the operation, check the coupling materials.
The size of the shaft and the hole in the hub must comply with those indicated in the dimension diagrams (tolerance of the ISO
system).
The holes used for future extraction of oil must be clean and without any working residues.
•
Heat the hub to obtain the play necessary for mounting. This can be carried out in an oil bath at about 220 °C (the normal
point that oil catches fire is about 270 °C; check this value for the oil that is being used!). If higher temperatures are required,
the hub must be heated by induction or put into an air circulation oven.
•
To be sure that mounting of the hub onto the shaft takes place without difficulty, control the diameter inside the hub using a
micrometer, before starting the shrinking operation.
Shrink the transmission part by referring to the Manufacturer’s detailed instructions.
Caution
If the shaft end surface and/or the hole in the hub are damaged, this damage must be eliminated BEFORE
mounting by using Indian stone.
3.3
Direct coupling
The use of flexible coupling is advised to prevent the transmission of any axial thrust onto the bearings.
Good alignment leads to the use of a comparator and a thickness gauge for the following operations:
•
Mount the two half-couplings on the motor and on the coupled machine, position and align the machines. Tighten the fixing
screws on the feet.
•
Apply the comparator onto the two half-couplings and measure radial alignment. Repeat the measurement after having
rotated the two shafts together by 45°, 90° and 180 °.
•
Insert a thickness gauge between the faces of the half-couplings and measure their distance. Repeat the measurement at 90°,
180°, 270°.
•
Correct any alignment errors detected by inserting thicknesses between the base and feet.
•
Tighten the screw fasteners fully home, repeat the measurements and if alignment is accurate, apply the adjustment plug
between the motor and the base.
For indicative radial and axial tolerance values, see fig. 3.c.
Remember that there must be sufficient play between the transmission gears to allow for axial dilation due to heating.
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Radial tolerance
∆r ≤ 0.1mm
Axial angle tolerance
∆b ≤ 0.1mm
Axial tolerance
∆a = 2-3mm
Fig. 3.c Indicative tolerance values for coupling
3.4
Coupling with belts and pulleys
To contain radial stress on the motor bearing, choose the max. Compatible diameter for the driving pulley, which is compatible with the
requested reduction ratio and with the max. accepted diameter for the shifted pulley. In a first approximation the chosen diameter must
be verified by calculating the pull that derives from it and comparing it with the accepted pull (see point 5.12 for normal working
machines). If the check gives a negative result, the diameter of the pulley must be increased, or pass to the roller bearing, if ball
bearings were initially envisioned, or increase the diameter of the shaft (consult SICMEMOTORI).
To contain the pull on the shaft with equal torque, the angle of the driving pulley embracing the belts must be increased (increase the interaxis
between the two pulleys – contain the reduction ratio).
For good belt alignment, there must also be good parallelism between the shafts and a safe and easy system for tensioning the belts
must also be present.
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
4.
COMMISSIONING
4.1
Electric connections
All of the machines are supplied with cable box complete with terminal board. The cables are marked by the letters stated in the
diagram attached to the machine.
Marking of the terminals is carried out according to IEC 60034-8 Standards or on request according to NEMA, CSA, etc. Standards.
For connections refer to the diagrams shown in par 4.7, connecting the machine for the envisioned direction of rotation.
The direction of rotation can be clockwise or anticlockwise indifferently. Sometimes the precision adjustment of the machine may be
carried out for only one direction.
In this case an arrow on the DE end shield indicates the pre-established sense of direction.
On request, on ordering, sometimes free cables of agreed length can be supplied instead of the terminal box. Also for this case the
considerations for terminal marking and connection diagrams are valid.
Attention: before starting-up a motor ensure that the separated field is powered at full voltage.
4.2
Earth Connection
DANGER!
The machine must always be connected to the earth plant of the establishment where it is
installed.
For earthing a screw with respective anti-flattening washer are prepared on the stator play in a
visible position along with a screw in the terminal box, both with plate and marking. Both screws
must be connected to the earth plant.
Ensure that there is no paint between the screws and the machine’s surface. If necessary, remove the paint
before carrying out the connection.
4.3
Inspections before start-up
Before commissioning the machine or after a long period of inactivity it is a good idea to carry out the following verifications:
•
Use a 500 V Megger to check isolation towards the rotor mass and stator windings. The value revealed must not be less than
1.5 MΏ for motors up to frame size 280, at 7MΏ lager motors. The operation must be carried out with the power supply
cables disconnected.
ALARM!
During and immediately after measurement of the insulation resistance, the machine’s terminals
are potentially dangerous and must not be touched. It is necessary to ensure that there is no
voltage residue.
If this condition does not exist, the causes and solutions could be the following:
a) Presence of dust Non-greasy dust may be removed using a clean, dry cloth, or even better using a suction device. Dust on
inaccessible parts can be eliminated by cleaning the inside of the machine by blowing clean dry air at a pressure between 2-3.5 bar.
Before this operation remove machine inspection or closure doors. Repeat the isolation test.
b) Presence of grease or oil Rub with a cloth (not impregnated) and dielectric solvent. If the problem persists, disassemble the machine
and wash and dry the interested parts in the oven for 3 or 4 hours at a temperature of 100-120°C.
Repeat the isolation test before starting-up the motor.
•
Check that the asynchronous motors of any electric fans (or heat exchangers) are prepared to be powered correctly from the
available alternate current network (number of phases, voltage, frequency) and to turn in the established direction.
•
For motors with air-water heat exchangers, check that the water circuit functions.
•
Check that the protection relay contacts for ventilation defect (pressure switch) commute with the functioning fan. In the case
of ventilation with pipes, ensure that the quality of the air and capacity and pressure data respond to the established values
and check the direction of ventilation.
•
Check the armature and field voltages values are the same as those stated on the plate.
•
Check that the brushes unsheathed cables are fixed well and do not interfere with the springs.
•
Check that the brushes have not been damaged during transport; if this has occurred replace the damaged brushes with new
ones, which have the same quality and size and clean the inside of the motor well.
•
Check that the brushes run freely inside their brush-holder boxes.
•
Check that all accessories and/or protection devices have been correctly connected and function.
DANGER!
Work on the electric machine may only be carried out if it is absolutely sure that the machine is
not connected to the electric network.
4.4
Recommended protection devices
All transmission gears must be adequately protected with sumps to prevent contact with moving parts.
4.5
Start-up
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
DANGER!
The armature voltage may be given to the machine only if excitement is inserted! If the armature
voltage is applied without excitement being inserted or with the excitement circuit open or
interrupted, the direct current machine may destroy itself (in fact, in these conditions machine
speed increases until the bearing bench collapses or the rotor explodes!).
Before starting the machine, as well as the operations in the previous paragraph, ensure that:
•
It turns freely;
•
The excitement circuit has not been interrupted;
•
Transport safety devices (if existing) have been removed.
ALARM!
The direct current machine must not function without ventilation, as it would heat up excessively
and burn. Pay attention therefore that the fans function correctly and the cooling water in the heat
exchangers (where envisioned) circulates in the quantity and pressure indicated on the heat
exchanger plates.
When the machine is commissioned for the first time, it is a good idea to ensure that there are no visible signs of malfunctioning, such
as strange noises, vibrations, etc. It is a good idea to allow the machine to function without a load for a period of time before applying a
load. If there are problems, consult par. 7 and, eventually SICME SERVICE.
4.6
Inspections after start-up
After machine start-up (within the first 100 hours of functioning) carry out the following checks:
a) Check that the temperature of the bearings does not exceed 80°C in normal working conditions.
Overheating of the bearings is normally due to one of the following causes:
•
Bad alignment with consequent vibrations and tendency for seizure;
•
Excessive axial or radial thrust;
•
Excessive quantity of grease. In this case the motor must be stopped, dismount the grease-guard/s and eliminate the
excessive grease using a spatula; then re-mount the grease-guard/s
b) Check that the field current of the independent field is that indicated on the plate, keeping in mind that the field winding resistance
increases by about 45% from cold to reaching normal working heat.
The plate values refer to normal working conditions.
c) Check that the armature current is lower than or equal to that on the plate.
Attention: an excessively low current value causes excessive wear of the brushes with consequent scratching of
the commutator (see par. 7.3). Contact SICME SERVICE immediately.
d) Check that the brushes form a uniform grey-silver film on the commutator. Its presence indicates good commutation (see par. 5.2).
e) Measure the height of the brushes and register the value.
ALARM!
Working temperature
The maximum temperature rise accepted by IEC Standards for stator yoke is 125°C if the
machine is in class H (105°C if in class F, 80°C if in class B).
Even if it normally has a much lower temperature rise value, our machines do however require
adequate precautions to prevent contact, even accidental. Moreover, highly inflammable
materials must not be left in contact with the functioning machine.
A temperature outside of the stator that is too low must be attributed to a low work load, with possible problems tied to functioning
with low load (see par. 7.3) If necessary, contact SICME SERVICE.
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
4.7 Connection wiring diagrams
Fig. 4.7.1 Electric motor connection diagram – machines with 2-4 poles
Terminal markings with IEC 34-8 abbreviations
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Fig. 4.7.2 Motor electric connection diagram – machines with 6-8 poles
Terminal markings with IEC 34-8 abbreviations
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Fig. 4.7.3
Motor electric connection diagram – machines in compliance with NEMA Standards
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Fig. 4.7.4 Installed accessories
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
5.
MAINTENANCE
An accurately prepared precautionary maintenance programme may reduce faults to a minimum, reducing the running cost at the same
time.
The maintenance programme must be studied by competent technicians, which take the features of the electric machine used into
consideration along with the particular use to which it is destined and the environment in which it must function.
Use of the machine means: the more or less strategic role that it is assigned within the plant, on which the accuracy and frequency of
the controls and precautionary maintenance to be programmed, will depend.
Environment means: the group of temperature, humidity, vibrations, exceptional mechanical stress features, along with the presence of
aggressive chemical agents, to which the machine may be exposed in its place of installation. The type and frequency of precautionary
maintenance interventions will also depend on the environment.
All maintenance operations must be carried out by qualified staff, which are informed about the content of these instructions, which
must always be at their disposal.
SICMEMOTORI advises the user to prepare a specific maintenance file for every direct current machine installed, and its constant
update by expert staff.
After any interruption of functioning caused by protection equipment or for any other reason, an in-depth inspection of the
machine is necessary and, if necessary, also of plant components. The causes of the interruption must be clarified BEFORE
putting the machine back into service.
DANGER!
Before carrying out any work on the electric machine disconnect it from the network!
5.1
Programmed maintenance
Table 5.a indicates a type of programmed maintenance; it must be understood that this programme must be adapted to the client’s
requirements, and that SICMEMOTORI is available, on request, to collaborate and study the most opportune adaptations for
commissioning and the first working period.
Table 5.a – Programmed maintenance – programme type
Component
Complete machine
Commutator
Brushes
Brush-holder
Stator and rotor
windings
Power supply
cables
Bearings
Insulation
Operations
Check vibrations and noise in the bearing seats. ISO 3945
Standard reference values (a)
Detection of strange noises (blows, scraping, etc.) (a)
Eye-check internal cleanliness of the machine
Eye-check the surface of the commutator
Check eccentricity (a)
Clean the commutator well with the relevant rubber sticks and
pumice stone
Interval (H)
See Point
yearly
weekly
monthly
weekly
1200
3500-4000
5.2
400-500
5.4
5.5
5.6
Check efficiency of the brush-press springs
Measure insulation resistance (with temperature of the shell at
about 25°C) (a)
General cleaning of the windings
Check tightening of the cables to the machine clamps. Tighten
if necessary
Measure the temperature (h) (i)
400-500
900-1200
(300-600)*
3500-4000
4.3
Re-lubricate and apply grease (excluding self-lubricating
bearings) (h) (j) (k)
See plate on
motor
Check wear and play between brush and brush-holder box (a)
(b)
Complete replacement of bearing grease
Check for rust on the bearings (g)
Check insulation resistance using a Megger
Filters
Check if filters are blocked
Air-water and air-air
See appendix
heat exchangers
Check that nothing has loosened (this must be carried out
mostly for terminal box electric connections as insufficient
Fixing nuts and
contacts may cause localised overheating)
bolts
4.3
yearly
1200
3 years
3 years
900-1200
(300-600)*
weekly
5.9
5.13
5.14
5.15
4.3
5.18
1800-2200
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Component
Check
machine-load
measurements (f)
Operations
alignment
and
register
the
Coupling
Electric fan
Various
accessories
Earthing brush (if
existing)
Maintain the coupling according to the Manufacturers
instructions
Check for the presence of rust or dirt.
If envisioned, grease the asynchronous motor bearings (g)
Check their correct functionality
Check that it runs freely in its brush-holder. Clean the contact
surface between the brush and shaft using very fine sand
paper. (a) (b)
Interval (H)
Every two years
and at every
disassembly
See Point
Every 6-months
yearly
yearly
* Humid environments
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
(i)
(j)
(k)
Compare with previous measurements and observations
Calculate consumption in mm per 1000 working hours and compare with previous measurements; with this measurement
you will obtain a good indication about commutator and commutation behaviour.
Remove any rust using a stone and oil and then cover the surface with an anti-corrosive layer
Depends on environmental air contamination
Depends on contamination of the water
If the vibrations increase, inspect immediately or shorten the intervals between inspections
Remove rust
For the bearings lubricated with grease
Compare previous measurements
Observe the lubrication intervals indicated on the direct current machine plate. Machines with long standstill periods must
be re-lubricated every year (as the grease may become old or condensation may form inside the bearing)
As soon as phenomenon such as vibrations, temperature rise or noise occur, or when the machine must be
disassembled. Experience tells us that bearing problems are mainly caused by their wear, rather than fatigue of the
material. However, consumption also depends on functioning conditions.
The particular instructions for maintenance relative to the commutator, brushes, bearings and air filters are stated below.
5.2
Commutator
The commutator is the most delicate part of the direct current machine therefore more sensitive to all abuse. In normal conditions the
commutator does not require much maintenance apart from periodic inspections. An indication of good functioning is the uniform film
that forms on the commutator. The colour of the film can vary depending on the substances present in the environment. In this case the
commutator does not require any attention at all, just periodical cleaning.
Attention!
The film that forms on the commutator must not be removed, not even when the brushes are replaced.
Whenever the surface of the commutator is course or rough or with slight grooves, it is a good idea to pass over it with carborundum stone
or pumice stone.
It is also necessary to check the eccentricity of the commutator ensuring that it does not exceed the value of 0.05 mm.
If this does not happen or the surface is very rough with grooves or tracks, the commutator must undergo lathing. (See point 5.3)
5.3
Lathing, mica undercutting and polishing the commutator
These operations must only be carried out by expert staff.
The centring must be positioned on the bearing’s seat to allow the perfect concentricity with the surface of the commutator.
The minimum lathing diameter is indicated with a relevant circular notch on the front surface of the commutator (see fig. 5.3.a). For the
shielded commutators the minimum lathing diameter coincides with the external shielding (see figure 5.3.b).
Mica undercutting must be carried out after lathing using the relevant mill, or by hand using a saw with appropriate thickness. Mica
undercutting must be carried out in compliance with the indications stated in the table and in figs. 5.3.c and 5.3.d.
When mica undercutting has been carried out it is necessary to eliminate the burr and sharp edges on the surfaces of the thin blades
using the relevant scraper. Polishing the commutator is the last operation to be carried out and must be performed using a pumice
stone or with fine sand paper n. 3/0. Suck up metal dust produced and put back into service.
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Fig. 5.3.a – Minimum lathing diameter
for printed and dove-tail commutators
Fig. 5.3.b – Minimum lathing diameter
for shielded commutators
Fig. 5.3.c – Mica undercutting of the
commutator
Motor sizes 80-800
E – Thin copper blade
A (mm)
B (mm)
C (mm)
Nominal thickness of the
Milling depth
Milling width
micanite
0.60
1.2
1.0
0.80
1.2
1.2
1.00
1.5
1.4
1.2
1.8
1.6
Milling depth and width of the mica – Motor sizes 80-800
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D(mm)
bevel
0.25x45°
0.25x45°
0.5x45°
0.5x45°
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Fig. 5.3.d – Correct and incorrect
execution of mica undercutting
5.4
Commutation
By eye-checking commutation it is possible to easily recognise if the machine is functioning normally or if anomalies are present.
o
For a guide to evaluation of commutation quality refer to instruction n 1.00.49.0113.0. (table 5.c) stated below.
Some commutation anomalies can be prevented through an accurate control of the brushes, as described in the following points (from
5.5 to 5.7).
The aspect of the commutator is also and important indication of the machines state.
5.5
Brushes
The bushes must be the type recommended by SICMEMOTORI. Any change in type must be previously authorised by
SICMEMOTORI.
Attention!
The use of brushes of a different quality that is not previously authorised automatically voids the warranty.
Excessive wear of the brushes may be caused by their insufficient pressure. Excessive heating of the commutator may vice-versa be
due to the pressure of the brushes, which is too high.
Excessive consumption of the brushes and scratching of the commutator can depend on the fact that the machine works for long
periods of time with very reduced loads.
Corresponding solutions are shown in point 7.3.
5.6
Maintenance of the brushes
DANGER!
Before carrying out any work on the electric machine disconnect it from the network!
Periodically it is necessary to ensure correct mounting and electric connection of the brushes as follows:
•
The brushes must be free to run in the brush-holder box (play between 0.1 and 0.3 mm);
•
The brushes must be well connected electrically (cables fixed well to the brushes, integral, correctly connected to the
corresponding screws in the brush-holder arc)
•
The pressure applied by the spring onto the brushes must be between the values indicated in table 5.b.
Spring pressure
2
(cN/cm )
80-450
200-250
500
225-250
560-630
250-290
710-800
250-290
Table 5.b – Pressure of the springs on the brushes
Motor size
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Table 5.c – Index of commutation
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
5.7
Replacement of the brushes
DANGER!
Before carrying out any work on the electric machine disconnect it from the network!
The worn brushes (that present the danger of contact with the commutator unsheathed fixing cable with the brush cable itself) must be
replaced without delay. Replacement must be preferably carried out for all of the brushes at the same time. The relative operations are
illustrated in fig. 5.d.
1)Brush
2)Brush-holder box
3)Brush-holder support
4)Spring-holder support
Monobloc brushes
1)Brush
2)Brush-holder box
3)Brush-holder support
4)Spring-holder support
a)
b)
c)
d)
e)
f)
g)
h)
i)
Twin brushes
Ensure that the motor is electrically disconnected
Loosen the terminal cover lock-nut a and remove the terminal cover b
Press the edges of the spring-holder between the thumb and index finger and release it
The spring-holder support until it stops, turn it into the rest position according to arrow A
Slide the brush out
Insert a new brush
Tighten lock-nut a of the terminal cover b
Re-attach the spring-holder support
Check that the spring-holder support is correctly attached to the box and check for any interference or excessive play
between the new brush and the old box. This operation can be carried out easily by pulling the brush from the unsheathed
cable and allowing it to run for the entire length of the box.
Fig. 5.d – Replacement of the brushes
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Generally, the brushes must be replaced when their consumption has arrived at the height of the writing indicating the type of brush,
present on the brush itself (this writing acts as a reference to determine the time of brush replacement), to avoid contact between the
unsheathed fixing cable with the graphite and the commutator.
Always use brushes that have the same quality as the originals and only change the quality after having received a favourable opinion
from the SICMEMOTORI Assistance Service.
Attention!
The use of brushes of a different quality without previous authorisation automatically causes the warranty of the motor to
become void.
A general guide to the various qualities of brushes is shown in table 5.e. The table also indicates the qualities that can be considered
equivalent, according to our experience.
The surface of the new brushes in contact with the commutator must be formed, following the main direction of rotation, if known, using
emery cloth and taking care not to break or round off corners.
To do this it is a good idea to run a strip of emery cloth, measuring as wide as the commutator, underneath the brushes. The carbon
dust must be carefully removed.
Machine executions (IP-IC)
Normal environment
Acidic environment
PVA-CBA-BPVA-PV-BCA
(IP23-IP44-IP23-IP23-IP23)
(IC06-IC37-IC06-IC01-IC17)
PVA-CBA-BPVA-PV-BCA
(IP23-IP44-IP23-IP23)
(IC06-IC37-IC01-IC17)
CBARH – CBARO
(IP44-IC86W) – (IP44-IC666)
(1)
RE59W
RE60N6
RE60N7
(3)
4
351AN6
RE60N7
EG571
CNV – CNVC
(IP44-IC0041) – (IP44-IC611)
Armature voltage =>150 V
CNV – CNVC
(IP44-IC0041) – (IP44-IC611)
Armature voltage <150 V
(1)
(2)
(3)
(4)
Recommended quality
(2)
EG319P
EG319PJ
EG319Pi
RE92N7
RE54Z1
EG389P
RE92M2
M621
Table 5.e – Normal quality brushes
Risomesa – Ringsdorf
Il Carbonio – Le Carbone-Lorraine
Morganite Italiana – Morganite Carbon Limited
Toyo Tanso
If the machine has a brush wear control device, ensure that the special brushes are correctly connected to this device.
5.7.1
Replacement of the brush-supports
DANGER!
Before carrying out any work on the electric machine disconnect it from the network!
When the brush-support boxes show evident signs of wear such as burns, grooves caused by flashes, or when play between the brush
and brush-supports is very large (see par. 5.4 5.5 5.6) the brush-supports must be replaced by referring to the following instructions.
a)
b)
c)
d)
e)
f)
g)
Ensure that the motor is electrically disconnected
Remove the brush according to instructions in. 5.7
Remove the nut pos. 1
Slide out the brush-holder pos. 2
Insert a new brush-holder taking care to align the box with the
teething pos. 4 present on the brush-holders support pos. 3
Tighten the nut pos. 1
Re-mount the brush according to the instructions in paragraph
5.7
1 – Brush-holder box fixing nut
2 – Brush-holder box
3 – Brush-holder support
4 - Teething
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
5.8
Roller bearings
In the following paragraphs DE means drive end and NDE means commutator end
The machines in this range are normally envisioned with roller bearings. All bearings used by SICMEMOTORI have greater play (C3),
and so must all spare parts.
Normally the NDE bearing is a ball bearing (apart from on motors 710-800, which are roller); the DE bearing can be roller or ball (one
ball and one roller bearing are applied to frame sizes 710-800).
In frame size 800 motors the NDE end shield is isolated to eliminate the dangerous effects caused on the bearings by eventual shaft
currents.
The types of bearings used are indicated in table 5.f and on the motor's plate. If there is disagreement, that stated on the plate must be
followed.
5.9
Useful life of the bearings
The bearings are selected by SICMEMOTORI on the basis of data from the suppliers catalogues and to the types of coupling, and
envision a theoretical life of:
•
For direct coupling (absence of radial loads):
motor sizes 80-112: 60000hours;
motor sizes 132-800: 80.000 hours;
•
indirect coupling with radial load motors sizes 80-450: 20.000 hours.
For 500-800 frame size motors, envisioned for in direct coupling, please consult SICMEMOTORI.
The theoretical life is calculated for normal working conditions, i.e. for normal service (continual service with load equal to or lower than
the nominal, without sudden overloads or inversion of gears) with normal direct coupling using a flexible or indirect joint using pulleys
and belts with diameter of the driving pulley, pull of the belts and barycentre of the pull itself within established limits, (see point 5.12),
in normal environments (without vibrations or blows, dry, clean, with maximum environmental temperature of 40°C). The theore tical life
cannot be subject of the warranty (as it is a statistic value, which cannot be used without caution in every individual case), and is
transmitted by SICMEMOTORI to the client on the basis of information received from his supplier. The effective useful life of the
bearing depends mainly on the particular service and by the efficiency of maintenance. The establishment of a reasonable effective
useful life, to be considered for a programmed maintenance plan, is entrusted to the user’s Maintenance Service, and must be based on the
constant and systematic control of the machine in use.
5.10
Bearing inspections
The inspections must be part of a precise planned maintenance programme, with the aim of keeping under control:
•
temperature rise, which must never exceed 70°C in normal working conditions. A higher temperature rise generally denotes
deterioration of coupling conditions with unacceptable radial or axial stress;
•
Noise: blows at more or less regular intervals must never be perceived. Any blows are a symptom of deterioration of one or more rolling
elements. At the first sign of abnormal noises, carry out an in-depth check of bearing wear (wear of the track, consumption of
the cage, play between external ring and seat, external thrust, etc.) with the machine at a standstill and disassembled.
If the above-mentioned phenomenon get worse or at the first suspect that a bearing is broken it must be replaced immediately, to
prevent the danger of serious damage to the machine (see points 6.5 and 6.6).
5.11
General bearing data (standard machines)
The indications that follow (from par. 5.12 to 5.17) are supplied to ease drawing up of a programmed maintenance plan.
5.12
Types of bearings and radial loads accepted (standard machines)
The types of bearings used and radial loads accepted on the end of normal SICMEMOTORI machines are indicated in table 5.f Always
refer to the types of bearings indicated on the direct current machine's plate. In the case of contradictory information, follow that printed
on the plate.
Motor size
NP 80
NP 90
NP100
P 112
P 132
P 160
P 180
P 200
NP225
NP250
NP280
NP315
NP355
NP400
NP450KRS-KS
NP450KSM-KX
NP500KRS-KS
NP500KSM-KX
NP560KRS-KS
NP560KSM-KX
NP630KRS-KS
NP630KSM-KX
NP710KRS-KR
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Roller
Roller
Roller
Roller
Roller
Roller
Roller
Roller
Roller
Roller
Roller
Roller.
Roller
Roller
Roller
+ Ball
DE Bearing
Type
SICMEMOTORI Code
6305-2Z-C3
8.3.09.19.025.0
6306-2Z-C3
8.3.09.19.030.0
6308-2Z-C3
8.3.09.19.040.0
6308-2Z-C3
8.3.09.19.040.0
6310-2Z-C3
8.3.09.19.050.0
6312-2Z-C3
8.3.09.19.060.0
6312-2Z-C3
8.3.09.19.060.0
6314-Z-C3
8.3.09.18.070.0
NU2218-C3
8.3.09.75.090.0
NU2220-C3
8.3.09.75.100.0
NU2220-C3
8.3.09.75.100.0
NU321-C3
8.3.09.63.105.0
NU324-C3
8.3.09.63.120.0
NU228-C3
8.3.09.74.140.0
NU320-C3
8.3.09.74.150.0
NU232-C3
8.3.09.74.160.0
NU234-C3
8.3.09.74.170.0
NU236-C3
8.3.09.74.180.0
NU236-C3
8.3.09.74.180.0
NU238-C3
8.3.09.74.190.0
NU238-C3
8.3.09.74.190.0
NU244-C3
8.3.09.72.220.0
NU244-C3
8.3.09.74.220.0
+
+
6044-C3
8.3.09.05.220.0
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Ball
Roller
NDE Bearing
Type
SICMEMOTORI Code
6204-2Z-C3
8.3.09.10.020.0
6305-2Z-C3
8.3.09.19.025.0
6306-2Z-C3
8.3.09.19.030.0
6306-2Z-C3
8.3.09.19.030.0
6308-2Z-C3
8.3.09.19.040.0
6309-2Z-C3
8.3.09.19.045.0
6310-2Z-C3
8.3.09.19.050.0
6314-Z-C3
8.3.09.18.070.0
6315-C3
8.3.09.17.075.0
6318-C3
8.3.09.17.090.0
6318-C3
8.3.09.17.090.0
6321-C3
8.3.09.17.105.0
6324-C3
8.3.09.17.120.0
6228-C3
8.3.09.09.140.0
6230-C3
8.3.09.09.150.0
6232-C3
8.3.09.09.160.0
6234-C3
8.3.09.09.170.0
6236-C3
8.3.09.09.180.0
6236-C3
8.3.09.09.180.0
6238-C3
8.3.09.09.190.0
6238-C3
8.3.09.09.190.0
6244-C3
8.3.09.09.220.0
NU244-C3
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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8.3.09.74.220.0
M-CC-80-800-E-10
28
ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Motor size
NP710KS-KM
Roller
+ Ball
NP710KML-KX
Roller
+ Ball
NP800KRS-KR
Roller
+ Ball
NP800KS-KM
Roller
+ Ball
NP800KML-KX
Roller
+ Ball
DE Bearing
Type
SICMEMOTORI Code
NU248-C3
8.3.09.74.240.0
+
+
6048-C3
8.3.09.05.240.0
NU252-C3
8.3.09.74.260.0
+
+
6052-C3
8.3.09.05.260.0
NU248-C3
8.3.09.74.240.0
+
+
6048-C3
8.3.09.05.240.0
NU252-C3
8.3.09.74.260.0
+
+
6052-C3
8.3.09.05.260.0
NU256-C3
8.3.09.74.280.0
+
+
6056-C3
8.3.09.05.280.0
Type
NDE Bearing
SICMEMOTORI Code
Roller
NU248-C3
8.3.09.74.240.0
Roller.
NU252-C3
8.3.09.74.260.0
Roller
NU248-C3
8.3.09.74.240.0
Roller
NU252-C3
8.3.09.74.260.0
Roller
NU256-C3
8.3.09.74.280.0
Table 5.f
The accepted maximum radial loads expressed in Newton on the end of normal shafts of the SICMEMOTORI motors are stated in
the following tables.
Motor
80
90
100
112
132
160
180
200
225
250
280
315
X
(mm)
25
50
30
60
40
80
40
80
40
80
55
110
55
110
70
140
85
170
85
170
85
170
105
210
600
750
1970
1000
1920
2580
2320
3750
3150
3400
Speed (g/1’)
1500
2000
1550
1450
2500
1340
2020
1500
2950
2750
2910
2730
4210
3000
5410
1830
1680
3000
1270
1130
1570
2660
2500
2620
2460
3800
2460
2300
2420
2270
3500
2300
2150
2260
2130
3280
4870
4480
5180
4910
6370
5980
20500
4630
4380
5680
5320
18000
4230
4010
5180
4860
17000
28000
26000
24000
18000
---------
4180
3920
3930
3720
4800
4500
16000
13000
-------------
3500
1150
1100
1500
1420
2180
2050
2140
2020
3100
2920
3950
3700
3690
3500
---------------------
3000
5960
3500
5680
10720
10200
14280
-----
1200
4020
3500
5840
3360
3150
4870
7530
6270
4200
7340
5500
9090
7900
25000
6060
5500
9470
7010
23000
15000
32000
20000
24000
15000
12000
8000
Table 5.g.1 – maximum radial loads with standard bearings
Motor
size
112
132
160
180
200
X
(mm)
40
80
40
80
55
110
55
110
70
140
600
750
Speed (rpm)
1500
2000
6750
3500
5840
3000
8500
4200
1000
7000
2500
6300
11200
5500
15700
15150
7900
Table 5.g.2 – maximum radial loads for 112-200 motors with LO roller bearing
The radial load Fr is calculated using the following formula:
6
Fr = 19,1 x P x K x 10
Dp x n
where:
Fr = radial load on the shaft in N
P = nominal power of the motor in kW
n = nominal speed of the motor in g/1’
Dp = diameter of the pulleys in mm
K = belt tension co-efficient, that can be approximated to:
K = 1 for toothed belts
K = 2.35 for trapezoid belts
K = 3.75 for normal flat belts
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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M-CC-80-800-E-10
29
ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
The point X of application of radial load Fr on the shaft depends on the type and number of belts used and, in the case of trapezoid
belts, it can be determined using table 5.g.3.
For motors not included in the table, consult SICMEMOTORI.
Number of belts
SPA-A
X
26
33
40
48
56
63
70
78
85
93
100
108
115
123
130
138
145
153
160
168
175
183
190
198
205
212
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
SPB-B
X
30
40
49
59
68
78
87
97
106
115
125
135
144
153
163
172
182
191
201
210
Section of the trapezoid belts
SPC-C
D
X
X
38
50
50
69
63
88
76
106
89
125
102
145
114
165
127
181
140
199
153
166
179
192
205
5V
X
30
39
47
56
65
74
83
91
100
109
117
126
135
144
153
161
170
178
187
196
205
8V
X
41
56
70
84
99
113
127
142
156
170
184
199
213
Table 5.g.3
Quota B must always be:
< 50 mm for 80-type motors
< 60 mm for 90-type motors
< 80 mm for 100-112-132-type motors
< 110 mm for 160-180-type motors
< 140 mm for 200-type motors
< 170 mm for 225-250-280-type motors
< 210 mm for 315-type motors
If in doubt, and for sizes not included in the table above, always consult SICMEMOTORI.
N.B.1 - 355÷800 range – Only direct coupling is normally envisioned for these machines, without significant radial and axial loads. A
machine in this range must not therefore be used with couplings that lead to radial and/or axial stress, without first having obtained a
favourable opinion from SICMEMOTORI.
N.B.2 - Machines with vertical axis with 200-axis height or above – Use with coupling such as to cause significant radial loads must
always undergo the SICMEMOTORI preliminary tests.
5.13
Lubrication programmes
A periodic bearing lubrication programme must be previously prepared by the Client’s Maintenance Service. For standard machines in
normal working conditions it may be obtained, as a first approximation, from tables 5.h, 5.i and 5.l. For normal working conditions see
point 5.9.
Any diversion away from these conditions leads theoretically to worsening and therefore shortening of intervals between re-lubrication,
that only practice, after a first period of service, can indicate. Every 4-5 re-lubrications the grease must be replaced completely (see
point 5.15).
Motor
NP 90
NP 100
P 112
P132
P160
P180
Bearing
Roller
Ball
DE
NDE
DE
NDE
DE
NDE
DE
NDE
DE
NDE
DE
1000
1500012500
12500
9250
8500
7500
1500
12000
9500
9500
6900
6250
5000
Speed (rpm)
2000
10000
8000
8000
4350
4000
3500
3000
6000
4500
4500
2900
2500
2000
4000
5000
2700
2700
1750
1500
1100
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Grease
(gr)
20
20
20
20
25
30
M-CC-80-800-E-10
30
ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Motor
P200
NP225
NP250
NP280
NP315
Bearing
Roller
Ball
NDE
DE
NDE
DE
NDE
DE
NDE
DE
NDE
DE
NDE
1000
7000
14000
7000
13000
6500
12000
6500
10000
5000
9500
1500
4500
9000
4500
8500
4000
8000
4000
6500
3500
5500
Speed (rpm)
2000
3000
6000
2750
5500
2500
5000
2500
4000
2000
3000
3000
1500
3000
1400
3000
1400
3000
1400
2800
-
Grease
(gr)
35
35
40
40
45
45
45
45
60
60
4000
-
Table 5.h – Indicative lubrication intervals in hours and quantity of grease (132-315 range)*
Bearing
Roller
Ball
DE
NDE
DE
NDE
DE
NDE
DE
NDE
DE
NDE
DE
NDE
Motor
NP355
NP400
NP450
NP 500
NP 560
NP 630
400
10000
2000
9000
18000
8500
17000
8000
8000
7500
7500
7000
7000
750
6000
12000
4500
9000
4000
8000
3500
3500
3000
3000
2000
2000
Speed (rpm)
1000
1250
4250
2500
8500
5000
3750
2000
7500
4000
2500
1250
5000
2500
2000
1000
2000
1000
1500
750
1500
750
500
250
500
250
1600
1500
3000
1000
2000
400
800
300
300
250
250
-
2000
800
1600
400
800
-
Grease
(gr)
70
70
55
55
70
70
85
85
95
95
130
130
Table 5.i – Indicative lubrication intervals in hours and quantity of grease (355-630 range)*
Motor
NP
710
NP
800
KRS
KRM
KR
KS
KSM
KM
KML
KL
KX
KRS
KRM
KR
KS
KSM
KM
KML
KL
KX
Rollers+
balls
Bearing
Grease
Rollers
(gr)
Grease
(gr)
400
Interval of lubrication (hours)
Speed (rpm)
600
800
1000
1100
1250
DE
225
NDE
130
5000
3750
2500
1100
500
450
DE
260
NDE
160
4300
3000
1800
750
350
250
DE
320
NDE
190
3500
2500
1400
500
150
-
DE
260
NDE
160
4300
3000
1800
750
350
250
DE
320
NDE
190
3500
2500
1400
500
150
-
DE
340
NDE
200
2700
1600
800
300
100
-
Table 5.l – Indicative lubrication intervals in hours and quantity of grease (710-800 range)*
* Tables 5.h, 5.i and 5.l are valid for bearings of machines with horizontal shafts e.g. the stationary type and in presence of
normal loads and can be applied to good quality lithium grease at a temperature that does not exceed 70°C. As the
temperature increases, accelerated aging of the grease must be taken into consideration. It is therefore recommended to half
the intervals in the table for every 15°C bearing w orking temperature increase above 70°C, remembering that the grease’s
maximum acceptable temperature must not be exceeded. For vertical shaft bearings the intervals must be reduced by half.
Moreover: check the data stated with that on the motor’s plate! In the case of contradictory information, follow that printed on
the plate.
5.14
Lubrication – Specific instructions
This operation must be carried out with the machine in movement. Apply the pump to the greasing nipple, remove the outlet plug from
the grease to allow the oil originating from deteriorated grease to escape. Add the grease in the quantity envisioned on direct current
machine's plate. Remove the pump and replace the cap.
The positions of the greasing nipple and the drainage hole are signalled on the relevant plates.
Attention!
Do not apply an excessive quantity of grease. An excess of grease heats the bearings and can damage them. The
excess grease tends to escape along the shaft. Do not mix different types of grease, as they may not be
compatible.
In normal conditions (in particular, with environmental temperature not exceeding 40°C) the grease to use must have the following
features:
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M-CC-80-800-E-10
31
ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
•
Soap base: lithium or polyurethane
•
Drop point: 180-190°C
o
•
Consistency: N 3NLGI with penetration values between 220 and 250 tenths of a mm;
•
Working temperature: -25 a +120°C.
Table 5.m indicates several types of grease for use in normal conditions.
For difficult conditions (and in particular when the max. environmental temperature exceeds 50°C) use special greases with hig h thermal
stability and that have the following features:
•
Organic base: urea or calcium salts;
•
Drop point: 220-250°C;
•
Consistency with penetration values between 240 and 270 tenths of a mm;
•
Working temperature: -30 to +150°C.
Table 5.m indicates several types of grease for use in difficult conditions
Product’s market name
Supplier
Athesia Gr3
IP
Mobilux 3
Mobil
Exxon Beacon
Exxon
Alvania 3
Shell
Table 5.m – Some types of grease for normal conditions
Product’s market name
Supplier
SRI 2
Chevron
Mobilplex 48
Mobil
Aeroshell 12
Shell
Table 5.n – Some types of grease to be used in difficult conditions
5.15
Complete replacement of the grease
This must be carried out every 4-5 re-lubrications, if it is not the correct time for bearing replacement. The machine must be partially
disassembled, following points 6.1 to 6.6. Successively remove the grease used by the roller bearing ring external and by the cage as
well as the internal grease-guard. Remove the grease used by the ball bearings. This must be carried out first with petrol and
successively with hot oil. Finally dry with dry, clean air and re-mount grease-guards and bearings according to the instructions given in
point 6.5 for new cushions. Fill the bearing with grease and fill the adjacent chambers by 2/3 of their capacity and re-mount the
machine
5.16
Bearings for special machines
Machines for special mechanical executions (e.g. with shaft ends having diameters different from the norm) may have special bearings.
This results safe from the comparison between the types of bearings indicated on the plate and those indicated in the corresponding
Technical Catalogue or File (Request it from the Sales Network).
5.17
Bearing replacement
This must be envisioned to coincide with general programmed maintenance of the machine when the useful life envisioned for the
bearings is approached (see point 5.9). For relative operations see point 6.5 and 6.6
5.18
Air filter
When present, the filtering panel must be controlled weekly to prevent it from blocking and causing excessive fall in pressure and
reduction of capacity to unacceptable values.
The panel can be cleaned with mechanical means (beating and/or suction) or by washing in water.
The panel must be replaced after it has been washed a certain number of times
5.19
Ventilation failure detector
Normally the ventilation failure detector device is positioned in the upper part of the heat exchangers or fitted onto the scroll of the
electric fans.
The ventilation failure detector device must never be tampered with; calibration must always be carried out by qualified staff, otherwise
it will not function correctly. This manifests in:
•
Too frequent interventions, with continual interruption of service; in this case, it is prohibited to short-circuit the device to allow
the machine to work;
•
Delayed interventions, with lack of intervention even when the dirtiness of the filter requires intervention. In this case, there is
great risk of putting the protected machine out of order.
Whenever in exceptional cases, for example during maintenance, or for replacement, it must be calibrated, follow the instructions
below.
Attention!
If in doubt always consult the SICMEMOTORI Client Assistance Service.
Instruments
:
Analogue Tester or Digital Tester
Modality
:
•
Place the tester on the ohmic capacity
•
Position the push rods on the ends of the pressure switch contacts identified with numbers 1 and 3 (fig 5.p).
•
Tighten differential adjustment screw “A” completely (screws not sealed).
•
Check movement of the tester indicator (contact closed).
•
Slowly loosen screw “A” until the ’tester indicator returns to the rest position (contacts open).
•
Loosen screw “A” further by 1/4 of a turn.
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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M-CC-80-800-E-10
32
ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
•
•
•
•
•
Loosen adjustment screw “B” until the tester indicator moves (contacts closed).
Tighten screw “B” slowly until the tester indicator returns to the rest position (contacts open).
Tighten screw “B” by another 1/2 turn.
Activate ventilation and check that the tester indicator moves (contacts closed).
Disconnect ventilation and check that the tester indicator returns to the rest position (contacts open).
By deactivating and activating ventilation the two commutations must occur.
FIG. 5.p
5.20
Tachogenerator
Refer to the Manufacturer's Maintenance Standards
Attention: before mounting and/or connecting the tachogenerator carefully read the instructions. The warranty is jeopardised
immediately if these instructions are not respected or if the dynamo is tampered with and/or repaired by unauthorised staff.
Mounting and/or connection of the tachogenerator must be carried out by qualified staff If in doubt always consult the
SICMEMOTORI Client Assistance Service.
5.21
Impulse generator (encoder)
Refer to the Manufacturer's Maintenance Standards
Before mounting and/or connecting the encoder carefully read the instructions. The warranty is jeopardised immediately if
these instructions are not respected or if the encoder is tampered with and/or repaired by unauthorised staff
Mounting and/or connection of the encoder must be carried out by qualified staff. If in doubt always consult the
SICMEMOTORI Client Assistance Service.
Operations that must NOT be carried out using the tachogenerator (dynamo and/or encoder)
MECHANICAL
Do not disassemble the machine otherwise the warranty will be jeopardised; repairs are accepted under guarantee only for equipment
sent free of carriage to Sicme Motori
DO NOT connect the small shaft to moving parts with rigid joints, but exclusively those with flexible joints. Incorrect mounting drastically
reduces bearing life and excludes any form of warranty.
DO NOT strike the instrument: it is possible to break internal parts, excluding any form of warranty. In particular, pay attention when
mounting coupling parts to the motor shaft to which the tachogenerator is coupled: NEVER use mallets or other means to fit
transmission gears!
DO NOT carry out any interventions on the shaft; this may cause the disk to break, deterioration of the bearings and loss of the
warranty.
DO NOT apply abnormal pressure, bend or twist the instrument’s shaft.
NON not mount differently from that envisioned.
During re-mounting of the flexible joint pay attention not to close the dowels with the joint itself compressed or extended, as
it would obstruct its extension adjustment function owing to heating of the motor shaft.
ELECTRICAL
DO NOT use power sources with an autotransformer that does not assure galvanic insulation from the network power supply.
DO NOT run the cable near to/parallel to the high voltage lines or to the power supply line, nor join cables in the same track. This
precaution must be observed scrupulously, to prevent malfunctioning due to inductive interference.
DO NOT use cables that are longer than necessary. Try to maintain the length of the cable as short as possible, so as to prevent the
influx of electrical disturbance.
DO NOT carry out connections if you have any doubts (see the connection diagram n the instruments label). Incorrect connections may
cause the instrument’s internal circuits to break.
DO NOT connect the instrument’s cable shield to a 0 Volt circuit
The cable shield MUST BE connected to earth (GND). DO NOT leave it disconnected! The shield must be connected to earth only from
the motor power supply side. In some cases, depending on the type of plant, it may happen that the shield must be connected both
from the power supply side and from the instrument side female connector.
DO NOT opt for NPN or PNP electronics with connections greater than 6 m. In this case the use of the line-driver output is
recommended, or subsidiary. To extend cables, use twisted shield cabling and a line-receiver compatible with RS422A in the receiving
circuit.
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
DO NOT opt for a power supply voltage of 24 Vdc if a high frequency reply is received. Orientate onto a voltage of about 5 Vdc and an
electronic line-driver.
5.22
Centrifugal relay
Refer to the Manufacturer's Maintenance Standards
5.23
Brush wear control device
Refer to the instructions below.
GREEN LED: WORKING
DEVICE
TEST BUTTON: WEARED
BRUSH SIMULATION
RESET BUTTON
RED LED: WEARED
BRUSH ALARM
1) Apply network voltage (indicated on the wiring diagram) to the ends of
L1 and L2 and check that the green LED switches on.
2) Press the TEST button and check that the red LED switches on.
3) Press the RESET button and check return to the initial position (green
LED switched on).
4) Bridge A1 with A11 and check the RED led switches on.
5) Reset and try a few more times.
6) Repeat the same test by bridging ends A2 and A21.
7) Connect the tester push rods (in continuity) to ends H1 - H3 checking
that the contact is normally closed and successively connect it onto H1 H2 checking that the contact is open.
8) Press the TEST button and check inversion of the contacts, i.e. H1 H3 from closed it must become open and H1 - H2 from open it must
become closed.
5.24
Air-air and air-water heat exchangers
See appendix.
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
6. DISASSEMBLY AND RE-ASSEMBLY OF THE MACHINE
For particulars and nomenclature refer to paragraph 10 – “demonstration diagrams and nomenclature”.
DANGER!
Before carrying out any work on the electric machine disconnect it from the network!
6.1
Operations preliminary to disassembly
After mechanical uncoupling (opening of the joint or equivalent operation, see point 6.2)), remove the screws that block the feet and/or the
flange and remove the reference plugs. Moreover:
- PVA-BPVA-BPVAB machines: remove the screws, hatches if present and the electric fan from the outlets.
- CNVC-CBARH-CBARO machines: remove the cooling unit from the motor.
6.2
Disassembly. Similar operations for all machines.
Disconnect the machine from all electric cables.
Extract the half-coupling with relevant tool when cold if the end of the shaft has the key (see fig.6.a) or refer to the Manufacturer's
instructions for the transmission part if the end of the shaft is smooth. Remove the tachogenerator (see fig. 6.b and following
instructions) and/or other accessories, remove the hatches or the lateral drive end and commutator end closures.
Disconnect the connection cables from the respective brush-holders by removing the screw and nut fasteners.
Slide the brushes out from their respective brush-holder boxes.
For frame sizes with grease-guards, remove screws 4.8 that fix the drive end 4.17 and commutator end 4.7 internal grease-guards.
Fig. 6.a – Cold extraction of a half-coupling
Fig. 6.b – Disassembly of the tachogenerator
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Remove the cap in 5.11 from the support 5.1 to enter joint 5.2.
Unscrew the threaded dowel 5.20 from the tachogenerator side half-coupling and screws 5.30, and then remove the tachogenerator
5.3.
If the commutator end shaft end must be made accessible, the following operations must be carried out:
remove support 5.1 by loosening screws 5.10;
unscrew screws 5.40 and remove the shank 5.4 together with flexible joint 5.2
At this point the end of the commutator end main shaft is accessible.
During re-mounting the flexible joint pay attention not to close the dowels with the joint itself compressed or extended, as it
would obstruct its extension adjustment function owing to heating of the motor shaft.
1 – Hoisting ropes
2 – Extension for shaft
3 – Complete stator
4 – Rotor
Fig. 6.c – Disassembly of the rotor
6.3
Disassembly of the shields (motors 80-630)
80÷200, remove the screw fasteners from the shields, slightly beat the drive end and commutator end shields on the corners with a
plastic or lead mallet to favour removal of the stator centring, then slide the drive end and commutator end shield out. During the
operation keep the rotor raised with the correct pull, and insert strips of cardboard with a thickness of 0.5-1 mm into the lower part,
between the rotor and main poles, to prevent the magnetic parts from being damaged if they come into contact.
For frame sizes 225÷630 disassembly of the shields is carried out using two of the 3.12 or 3.13 screws, applied in the threaded holes
especially envisioned on the shields. These screws are tightened until unfixing, then loosened. During the following extraction of the
shields the rotor must be raised with correct pull. After the shields have been removed, insert strips of cardboard with a thickness of
0.5-1 mm in the air gap between rotor 1 and main poles 2.2, to prevent contact from damaging them.
Fig. 6.d – Removal of a
bearing
6.3.1
Disassembly of the end shields (motors 710-800)
Remove the Seeger rings from the drive end and commutator end shaft 3.19. Remove the commutator end and drive end grease
valve rings 4.10 and 4.14 with the aid of a threaded tension rod and relative tool. Remove screws 3.12 and 3.13 that fix the end
shields 3.1 and 3.4 to the shell 2.1. Disassembly of the end shields (3.1 drive end and 3.4 commutator end) is carried out using two of
the screws 3.12 or 3.13 applied in the envisioned threaded holes. They are tightened until release has taken place, then they are
loosened. During successive extraction of the end shields, the rotor must be raised with correct pull; after the end shields have been
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
removed, insert pieces of card with thickness measuring 0.5- 1 mm into the air gap between the rotor 1 and main poles 2.2 to prevent
contact from damaging them.
6.4
Disassembly of the rotor
Once the shields have been removed, slide the rotor (rotor) out, clean and repair, if necessary. Follow the instructions for
disassembly in figure 6.c.
6.5
Bearing replacement (80-630 motors)
Disassembly and mounting of bearings must always be carried out with great care, paying particular attention not to ruin the bearing
seat on the shaft.
The worn bearings must be removed using the relevant extractor (fig. 6.d). The new bearings must be the same type as the worn
ones: particular attention to play, which normally is C3 (increased), apart from different indications on the machine plate.
To mount new bearings proceed as follows:
Clean the bearings, relative seats and the internal grease-guard chamber well. Heat the bearing to 80-100°C by induction, by placing
it in the oven or immerging it in an oil bath. Fix it onto the shaft and hold it against the shoulder for 60-90 seconds.
Eliminate the applied pressure and check that the internal ring does not rotate on the shaft.
The first lubrication of the new bearing must be carried out taking the following into consideration:
a) frame sizes 80÷180 – ball bearings with double screen. No lubricant;
b) frame sizes 132÷180 - with drive end roller bearing. No lubricant for the commutator end bearing with double screen. Fill the
internal grease-guard chamber up to 2/3, and the drive end roller bearing seat up to 1/3 + 2/3, with suitable grease;
c) frame size 200 – ball bearing with one screen. Fill the bearing seat by 1/3 + 2/3 with suitable grease;
d) frame size 200 - drive end roller bearing. Perform that stated in c) for the commutator end ball bearing. Perform that stated in b) for
the drive end roller bearing.
e) frame sizes 225÷630 – Fill the internal grease-guard chamber by 2/3, and by 1/3 + 2/3 the bearing seat, both drive end and
commuter end, with suitable grease.
Refer to tables 5.m – 5.n in point 5.14 regarding the types of grease to be used.
6.6
Bearing replacement (710-800 motors)
The bearings must be disassembled when cold using a relevant manual or hydraulic extractor. The applied roller bearings are NUtype, made up of an internal ring fixed onto the shaft, and external ring with small borders and relative cage fixed into the end shield.
The ball bearing applied jointly from the drive end is radial with a row of ball bearings.
Disassembly procedure:
(FIG. 10.4 – 10.5 – 6e and 6f)
-Drive end fig. 6.e. use a manual or hydraulic extractor positioned behind the internal grease-guard 4.17, sliding the internal ring 3.22,
the spacer 4.16 and the ball bearing 3.3 out at the same time.
Fig. 6.e – Removal of a drive
end bearing
•
-Commutator end fig. 6.f. Use a manual or hydraulic extractor positioned behind the internal ring 3.22 of the roller bearing
and slide the internal ring out
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Fig. 6.f – Removal of a
commutator end bearing
Successively extract the external bearing ring 3.23 from end shields 3.1 and 3.4.
•
Drive end shield: remove screws 4.8, remove the external grease-guard 4.9 and the ball bearing-holder bush 4.15 using the
relevant threaded extraction holes and two screws 4.8.
•
Commutator end shield: remove the external grease-guard 4.9 using the relevant threaded extraction holes and two screws
4.8 tightening until unfixed.
Continue by extracting the roller bearing external ring from both end shields 3.1 drive end and 3.4 commutator end 3.23.
Using a lead or iron mallet, strike a soft-material extractor (iron rod or equivalent in copper, aluminium or soft iron) distributing the
blows on the circumference of the external ring in opposite symmetrical points to ease removal without seizure; do not strike the cage
so as not to damage the rollers.
6.6.1
Mounting new bearings (710-800 motors)
Before mounting, clean the bearings and relative seats on the shaft and on end shield 3.1 or 3.4 using a suitable solvent (petrol or
other). Do not use abrasive tools.
Fig. 6.g – Keying DE
bearings
6.6.2
Mounting the bearing internal ring on the shaft (motors 710-800)
Refer to figs. 10.4, 10.5 and 6.g.
a) Drive end bearing. Manually insert the grease-guard when cold 4.17 onto the shaft. Fill the grease-guard chamber up to 1/3 with
suitable grease (tab. 5.m - 5.n paragraph 5.14). Heat the ball bearing 3.3 and the ring inside the roller bearing 3.22 to 90-100°C (by
induction, by placing it in an oven or hot oil bath). Fix the ball bearing 3.3 onto the shaft and hold it against the shoulder for 60-90
seconds. Eliminate the pressure applied and check that the internal ring does not turn on the shaft.
Fill the bearing seat up to 1/2 2/3 with suitable grease (tab. 5.m-5.n paragraph 5.14).
Manually insert the spacer 4.16 onto the shaft when cold until it hits the ball bearing 3.3. Fix the internal ring to rollers 3.22 on the shaft
and hold it against the spacer shoulder for 60-90 seconds. Eliminate the pressure applied and check that the internal ring does not
turn on the shaft b) Commutator end bearing. Manually insert the grease-guard 4.7 onto the shaft when cold.
Fill the grease-guard chamber up to 1/3 with suitable grease, (tab. 5.m – 5.n paragraph5.14). Heat the roller bearing internal ring 3.22
to 90-100°C (by induction, by placing it in an oven or in a bath of hot oil). Fix the internal ring to rollers 3.22 on the shaft and hold
against the shaft shoulder for 60-90 seconds. Eliminate the pressure applied and check that the internal ring does not turn on the
shaft c) Warnings of risks from heat. Wear clean protective gloves when handling heated bearings. If shrinking is not possible keying
must be carried out.
It is possible to proceed in two ways:
•
by using a lead or iron mallet, strike a soft-material pipe (copper, aluminium or soft iron) to distributor the stress on the entire
circumference of the internal ring.
•
Using a pipe with adequate diameter and length, a pressure ring and a tie-rod to screw into the hole on the end of the shaft as in fig. 6.g
(the latter system is preferable).
6.6.3 Mounting the bearing external ring in the end shield (sizes 710-800)
Refer to figs. 10.4 and 10.5.
Drive end and commutator end bearing: apply the ball bearing-holder bush 4.15 inside the end shield 3.1 and take it into stroke using
two screws 4.8.
Perform the operations for both end shields 3.1 and 3.4.
Position the external ring 3.23 in the end shield, then using a wooden or resin mallet. Fix it by distributing the blows around the
circumference of the external ring. Avoid striking the cage so as not to damage the rollers.
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
It is advised to heat the end shields for this operation pos. 3.1 o 3.4 in an oven at 50-60°C and inse rt the bearing ring 3.using slight
pressure.
Lubricate by filling the bearing seat by 1/2-2/3 with suitable grease, see tables 5.m – 5.n in paragraph 5.14. Insert the end shields
onto the shaft
6.7
Disassembly of the poles
If the winding poles must be completely disassembled, firstly disconnect the connection terminals of internal connections and terminal
connections. Remove screws 2.6 to disassemble the complete main poles or screws 2.7 to disassemble complete auxiliary poles and
relative air gap correction sheets.
6.8
Re-mounting the machine
Proceed in the opposite way to disassembly, paying attention, whenever it is necessary to disassemble poles, to replace the isolation
and correction thicknesses in their original positions. If during disassembly the
brush-holder ray moves and the position of the “neutral area” has not been
marked, they must be restored as follows:
•
power the independent field with alternating voltage and industrial
frequency (the effective value should possibly be of the same size as
the nominal direct voltage of the field, but different values are accepted)
•
measure the voltage between two rows of brushes with opposite
polarities using a Voltmeter with central and max. and min. values of
±1.5 V (indicative value), while the brush-holder arc is turned slowly.
•
The neutral area is reached when the indication on the Voltmeter tends
to zero itself (rough control).
•
Finally repeat the operation with another Voltmeter with reduced scale,
approximately ±60 V (precision adjustment).
The neutral area must be restored if the rotor is replaced.
The operations described above give a good result if the surface of the brushes is adequately shaped. If the brushes are new, it is a
good idea to carry out the rough control with a Voltmeter with a wider scale and wait for the surface of the brushes to be shaped to
carry out precision adjustment with a Voltmeter with reduced scale.
Complete the operation by tightening the screws that block the brush-holder ray.
6.9
Moving the terminals box (motors 132÷
÷315)
If for particular installation requirements it is necessary to position the terminal box on a different side to that originally envisioned,
and when it is not possible for this operation to be carried out by SICMEMOTORI or an authorised workshop, it is possible to proceed
as follows (nomenclature and particulars as in figure 10.2 and 10.5):
•
Remove the cooling units if present (see point 6.1).
•
Remove any accessories (tachogenerator, etc.) (point 6.2).
•
Disconnect the connection cables between the stator and brush-holder ray unit (screws 3.17) taking care to mark the
terminals
•
Remove the shields 3.1 and 3.4 as described in point 6.3, turn them by 90 or 180° according to the po sition you wish to
realise.
•
Restore the electric connections with particular attention to the polarities. The polarities must be inverted with respect to
the initial polarities
Before blocking the shield screws they must be aligned by resting the motor on a surface. Successively block the screws and restore
any reference plugs.
ATTENTION: whenever the brush-holder ring has been moved from its original position and the neutral area has not been marked,
proceed as indicated in 6.8.
The operation is over. Proceed with start-up controls (points 4.3 and 4.4).
6.9.1
Moving the terminal box (motors 355÷
÷450)
For this machine it is not possible to move the terminal box by rotating the end shields. Therefore the box must be disassembled and
mounted on the opposite side.
For this reason, the stator has two cable outlet holes on the two opposite sides. The terminal box 3.10 is fixed on one hole (normally
at D considering DE) using screws 3.18; a lid is fixed to the other.
To move the terminal box proceed as follows:
- open the terminal box (remove lid 3.20 by unscrewing screws 3.14)
- disconnect all cables that from inside the machine arrive at bars 3.11, by loosening nuts 3.15. If necessary, also remove external
power supply cables
- detach the box from the body of the stator, by loosening screws 3.18
- pass the internal connection cables between windings and terminal board, inside the machine and in the lower part, until they
correspond with the cable outlet to be used.
- fix the terminal box in the new position, by tightening screws 3.18
- attach the internal cables to the terminal board bars; pay attention to respect polarities. Attach the external power supply cables, if
they have been disconnected, and close the box by fixing the lid 3.20 using screws 3.14
- close the free cable outlet hole using the relevant cover.
The operation has ended. Carry out start-up controls (points 4.3 and 4.4).
N.B.- It may occur that some internal connection cables are too short. They must be extended using a cable of equal section and
equal insulation. For the particulars regarding the choice of the cable, the joint and insulation, contact SICMEMOTORI.
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
6.9.2 Moving the terminals box (motors 500-800)
If for particular installation requirements the terminal box must be positioned on a different side from that established initially, this
operation must be carried out by SICMEMOTORI or an authorised workshop.
6.10
Disposition and staggering of the brush-holders on the commutator
This operation can be carried out for sizes 500-800.
Wear of the commutator caused by brushes with opposite polarities is not uniform. To reduce the formation of surface grooves the
brushes must be staggered axially on the surface of the commutator.
It is important that staggering is carried out in a way that the same amount of positive and negative brushes pass over every track.
This result is obtained by staggering couples of brush-holders.
a) Staggering: staggering must be slightly more than the distance between adjacent brushes to eliminate the formation of crests.
If the machine in question is 8 mm.
b) Brush-holder distancing: the brush-holders must be equally distributed in circumference with ±0.6 mm tolerance measured on the
surface of the commutator.
c) Brush-holder alignment: all brush-holders in the same support must be parallel and aligned with the commutator thin blades with
±6 mm tolerance. The disposition and staggering diagram depending on the number of brush-holders per support is shown in fig. 6.h
for machines with 6 poles and in fig. 6.i for machines with 8 poles.
3 BRUSHES EACH ARM
5 BRUSHES EACH ARM
7 BRUSHES EACH ARM
4 BRUSHES EACH ARM
6 BRUSHES EACH ARM
8 BRUSHES EACH ARM
A = STAGGERING
B = DISALIGNMENT
C = ALIGNMENT
Fig. 6.h – Brush staggering for machines with 6 poles
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
3 BRUSHES EACH ARM
5 BRUSHES EACH ARM
7 BRUSHES EACH ARM
4 BRUSHES EACH ARM
6 BRUSHES EACH ARM
8 BRUSHES EACH ARM
A = STAGGERING
B = DISALIGNMENT
C = ALIGNMENT
Fig. 6.i – Brush staggering for machines with 8 poles
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
7.
TROUBLESHOOTING
If during movement or machine start-up abnormal phenomenon occur, the causes must be searched for immediately and eliminated.
The table below considers probable faults, their causes and solutions (tab. 7.1 – 7.2 – 7.3.1 – 7.3.2).
For phenomenon not envisioned in the tables contact SICMEMOTORI.
DANGER!
Before carrying out any work on the electric machine, disconnect it from the network!
7.1
Mechanical anomalies
Anomaly
Possible cause
Faulty bearings
Solution
Replace the bearings
Vibrations with machine
Balance the machine with
Half-coupling not balanced
half-coupling
not coupled
Foundation bolts have loosened
Tighten and block the bolts
Machine coupled or joint not balanced Check balancing
Alignment defect
Check coupling
Vibrations with machine Faulty bearings
Check the bearings
coupled
Check activation, control,
Defect in the power supply or coupled
the controlled machine and
machine
alignment
Anomalous overheating of Too much grease
Remove excess grease
the bearings immediately
Excessive axial load
Check axial load
after start-up or greasing
Anomalous overheating of
Rubbing of the bearing grease-guard The bearing seal and rethe bearing after a long
on the shaft
work the grease-guard
functioning period
Not enough grease
Grease
Faulty bearing
Replace the bearing
Whistling bearings
Leave the machine to
Noisy cage
function under tight control
Excessive wear of the
Reduce
radial
load,
Excessive load on the bearing
bearings
eliminate axial load
Bearing tracks marked,
Bearing passed through by parasitic Stop the machine and
with machine in service
current
contact SICMEMOTORI
(burns)
See point
5.17
3.3-3.4
5.12-5.17
5.14
5.14
5.17
*
* The cages tend to adapt with time
Table 7.1 – Mechanical anomalies
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
7.2
Electrical anomalies
Anomaly
Possible cause
Solution
No power supply voltage
Check the power supply
No excitement voltage
Check the power supply
Main field interrupted
Re-make the main field
Motor does not start-up Rotor coils in short circuit
Repair or rewind the motor
when unloaded
Short
circuit
in
the
Repair the connections
connections
Bad contact of the brush with Check the brushes and replace the
the commutator
most worn
Rotor coils in short circuit
Repair or rewind the motor
Motor that turns jerkily
Repair the short circuit, by
Commutator thin blades in
(not wanted)
restoring isolation between the
short circuit
commutator thin blades
Check the absorbed current and
Excessive load
eliminate the overload
Machine with brushes out of Put the brushes back in the neutral
Motor that doesn’t start
neutral area
area
coupled
Re-make the main field, control
Main field interrupted
internal connections
Low power supply voltage
Control the power supply
Machine with brushes out of
Put the brushes back in the neutral
neutral area in the opposite
area
direction
Motor that speeds up or
swings when loaded
Re-make the main field, control
Main field interrupted
internal connections
Rotor coils in short circuit
Repair or rewind the motor
Check voltage, armature current
Excessive load
and excitement current
Speed too slow
Adjust activation (minimum speed)
Control filter blocking, remove any
obstacles to the air passage, clean
Insufficient ventilation
the air adduction pipe, check the
direction of rotation of the electric
fans
Check the ventilation circuit and
Temperature of the cooling air
clean if necessary. Use cooling air
Excessive heating
or water of the heat
or water at the temperature
exchanger is too high
indicated by SICMEMOTORI
Environmental
temperature Suspend the service. Contact
too high
SICMEMOTORI
Brush inspection hatch open
Tighten the hatch
or closed incorrectly
Check and eventually replace the
Shape factors of the armature armature power supply. Insert a
current to high
levelling
impedance
(contact
SICMEMOTORI)
See point
8
8
5.6
5.7
8
5.3
6.8
8
6.8
8
8
5.18
Table 7.2 – Electrical anomalies
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
7.3
Commutation and brush anomalies
Good commutation depends on many factors, such as the humidity in the air, the presence of gas or dust in the air, temperature of the
cooling air too low, vibrations and low loads for a long period of time.
The choice of the direct type of brush for every type of service is indispensable to obtain good commutation and reduced consumption
of the brushes themselves. In spite the fact that SICMEMOTORI has great experience in this sense, unexpected factors may intervene
and worsen brush performance. In this case please contact SICMEMOTORI.
When commutation problems are detected and the SICMEMOTORI After-sales Service is contacted, the following information must be
supplied:
- Type of motor and serial number (to be found on the motor’s plate);
- Type and quantity of the brushes mounted, their aspect (rounded corners, surface with the commutator grooved, etc..)
- Description of the eye-check of the commutator surface (colour, if a film exists, presence of grooves, etc.)
- Armature current: average value absorbed by the motor and, if possible, an oscillogramme of armature current
- Type of environment (humidity, etc.)
7.3.1
Sparks
Light sparks are acceptable and in certain cases normal, until they reach the intensity such to leave traces of burning on the
commutator and the corners of the brushes.
It may also happen that some blades (generally at regular intervals) show a different colour, or that the film is not distributed evenly on
the blade. Normally this is not dangerous, but sometimes the situation can degenerate quickly and lead to serious problems with the
commutator.
Sparks caused by quick variations of current and speed are not generally dangerous.
In each case, even sparkling that at the start does not appear to be dangerous may, with the passing of time, and very quickly, become
extremely dangerous for the motor; therefore, it is recommended to inspect the surface of the commutator regularly, so that an increase
of sparks is detected immediately.
Main causes of sparks or commutation anomalies
1 Sparks may be caused by an increase in friction between the brushes and brush-holders, caused for example by dirt. In this case,
the pressure of the spring is no longer sufficient to ensure good contact between the brush and the commutator. The solution lies in
cleaning the brush-holder. The power supply must be interrupted before carrying out this cleaning operation.
2 When the motor starts to spark without apparent reason, it is very probable that there is a fault in the power supply (e.g. a burned
thyristor or control defect).
3 Another cause of sparks with production of burns on the contact surface of the commutator is incorrect contact between brush and
commutator. This could be due to:
One or more blocked brushes or ruined spring. If this happens on just one brush, the problem may not be very important,
but if it happens on a lot of brushes, the other brushes are overloaded and the sparks become dangerous.
Worn brushes. If one or more consumed brushes are not replaced immediately, the commutator contact surface may be
damaged by the brush unsheathed cables, with consequent motor sparks.
Presence of oil on the commutator. In this case, the oil forms an isolating film on the surface of the commutator,
preventing good contact between commutator and brush. Small arches are formed that cause burning on the commutator
(burned oil)
Presence of dust. Dust is deposited on the commutator and the rubbing of the brushes causes grooves in the
commutator, and therefore sparks.
4 Vibrations. The vibrations, caused, for example, by an unbalanced joint, by incorrect alignment or induced by the operative
machine, may cause an increase in sparks. Generally these types of sparks are present with problems on brush corners.
5 Humidity. If the air is too dry (below 6g/m3) the film does not form on the commutator. If the air is too humid (above 15g/m3) the film
becomes too thick. In both cases sparks are created.
6 Under loading. If a direct current machine functions for long periods of time with low current, it is recommended to decrease the
number of brushes, to obtain a current density in the brushes that guarantees good heating of the brush itself and, therefore, the
creation of the film on the commutator.
A commutator with homogenous film, with a colour that is not too intense, will guarantee optimum commutation and therefore long life
of the commutator itself and as a consequence also of the motor. Therefore a commutator with a good film must never be lathed or
cleaned with pumice stone.
DANGER!
The operations described below must only be carried out by trained and expert staff.
Necessary protective measures must be taken and the motor must be disconnected from the
network.
Some minor problems may be resolved with the use of a pumice stone, which, even if removing the film does not alter the profile of the
commutator.
If damage to the commutator is deep, the commutator must be rectified. This is an operation that requires highly qualified staff.
In extreme cases it may be necessary to disassemble and lathe the commutator.
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Anomaly
Possible cause and solutions *
Sparks on entry of the brushes
1 4 8 9 10 33
Sparks on exit of the brushes
1 3 19 21 32 33
Slight sparks
1 3 4 6 8 9 12
Strong sparks with sprays
6 8 9 10 13 26 27 29 30 31 32 33
Flash at the commutator
1 8 10 22 30
Sparks on some brushes or groups of brushes
2 6 7 9 14 16 17 21 23 24 26 27 28 31 32
Burning of the rear brush corner
1 4 8 12 16 23 24 25 27 32
Vibration and breakage of brush corners
5 9 20 21 25 27 28 31 32
Excessive brush consumption
6 7 8 9 11 12 19 20 23 25 26 27 28 32 33
Non-uniform consumption of the brushes
2 6 7 11 13 17 21 23 24 25 26 27 29 32
Interruption and burning of the unsheathed cables
2 6 8 9 10 13 14 15 17 20 26 30
Grooves on the brush contact surfaces
6 8 14
Irregular consumption of the commutator
6 11 14 15 17 20 33
Grooves on the surface of the commutator
6 11 12 13 14 15 17 21 23 25 28
Symmetric stains on the commutator
1 10 18 30
Asymmetric stains on the commutator
17 29 31 32
Grooves on the commutator
6 7 11 12 13 14 16 21 23 25 33
* See Tab. 7.3.2
Table 7.3.1 - Commutation anomalies
3
4
5
6
7
8
9
10
11
12
13
14
Possible cause
Brush-holder out of neutral area
Dissymmetry between the brush-holder
supports
Flow of the auxiliary poles strong
Flow of the auxiliary poles weak
Excessive functioning without load
Dirt and oil on the commutator
Abrasive dust on the brush surface
Excessive overloads
Vibrations
Fault of rotor winding
Current density at the brushes too low
Humidity too high
Dust or sand suspended in the air
Gas or acids in the air
15
Brush friction too high
16
17
Brushes not adapted to the commutator
Different quality of brushes
Stains on the commutator with the machine
at a standstill
Pressure at the brushes too low
Pressure at the brushes too high
Pressure at the brushes different among
themselves
Brushes blocked in the brush-holders
Brush-holders with excessive play
Brush-holders not parallel to the thin blades
Distance from the brush-holder box to the
commutator too far
1
2
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Solutions
Bring the brushes back into the neutral area
See point
6.8
Correct the distance between the supports
Increase the auxiliary pole air gap
Decrease the auxiliary pole air gap
Use adapt brushes, reduce the brushes
Clean the commutator and check the cause
Remove the brushes and clean them
Reduce the load
Check alignment and balance if necessary
Repair and rewind if necessary
Decrease the number of brushes
Introduce fresh air, choose suitable brushes
Mount filters and eliminate the cause
Introduce fresh air, choose suitable brushes
Reduce brush pressure, use non-abrasive
brushes
Adapt the brushes perfectly
Use brushes of the same quality
4.3
3.3-3.4
8
5.7
Raise the brushes
Replace the supports complete with spring
Replace the supports complete with spring
Replace inefficient springs
Clean the brush-holders, control play
Replace the brush-holders
Adjust the brush-holders
Adjust the distance to 2-2.5 mm
Increase current density, by reducing the
Non-uniform distribution of the current in
quantity of the brushes; use more abrasive
the brushes
brushes
Mica projecting from the commutator
Mica undercut and round-off corners
Eliminate burrs, round-off corners, replace the
Burrs at the blades
brushes with others that are more adapt
Ovalised commutator
Lathe the commutator
Interrupted welding
Weld the forks to the commutator
Grooves on the commutator
Lathe the commutator
Pass over the commutator with stone; lathe
Projecting commutator blades
the commutator if necessary
Lack of levelling reactance where
Place the levelling reactance
envisioned
Table 7.3.2 – Commutation anomalies – troubleshooting
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5.3
5.3
5.3
5.3
M-CC-80-800-E-10
45
ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
8.
INSTRUCTIONS FOR ELECTRICAL REPAIRS
When repair consists in rewinding main field bobbins, auxiliary field bobbins or rotors, consult an expert and adequately equipped
workshop for repairs.
On request SICMEMOTORI will send an updated list of workshops that they consider suitable.
Particular attention must be given to the materials to be used regarding this. Specific indications for each machine, as well as diagrams
and instructions for rewinding, will be put at disposal by SICMEMOTORI on request, with the fastest means.
Some general indications, which must always be taken into consideration, are shown below:
Component
Wires
Ground strap
Insulation towards earth
Isolating flange
Rotor head shields
Windings impregnation
Windings surface protections
9.
Recommended material
Enamelled copper, double enamel
Enamelled copper, quadruple enamel
Nomex
Polyester
Polyglass band
0ven-dry paint
Non-tarnishing epoxy enamel (can be dried in the open air
or in oven)
Table 8 – Materials recommended for electrical repairs
Class
H; H+
H; H+
H
H
H
H
-
RECOMMENDED SPARE PARTS
An appropriate stock of spare parts ensures plant continuity and allows to resolve standstill due to faults in a brief period of time. To order
spare parts it is always necessary to indicate the type of machine, the serial number and plate information.
The amount of spare parts to have at disposal depends on the amount of the same types of machine used and the importance
attributed to standstill time. Table 9 indicates the recommended minimum quantities of spare parts to stock:
Spare parts
Same machines in service
1
2-3
4-6
Filter
1
2
3
Complete electric fan
1
Set of brushes
2
4
6
Set of brush-holders
1
Set of bearings
1
1
1
Complete main pole
2
2
Complete auxiliary pole
2
2
Compensating bobbin
2
2
Complete rotor
1
1
Complete machine
1
Table 9 – Recommended spare parts
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=>7
4
2
8
1
2
2
2
2
1
1
M-CC-80-800-E-10
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
10.
DEMONSTRATION GEBNERAL DRAWINGS AND NOMENCLATURE
01 Complete rotor
02 Rotor coil
03 Commutator
04 Shaft
05 Shaft end key
50 Terminal box frame
51 Terminal box lower seal
52 Terminal board header
53 Terminal box lid seal
54 Terminal box lid
10 Complete stator
11 Main pole bobbin
12 Auxiliary pole bobbin
13 Auxiliary pole bobbin terminal
14 Main pole bobbin terminal
15 Identification plate
60 Electric fan
61 Asynchronous motor
62 Filtering panel
63 Filter-holder frame
70 Screw Fasteners for fixing the shield to the stators
71 Brush terminal cover screw fasteners
72 Brush-holder box screw fasteners
73 Lifting eye-bolts
74 Filtering unit nut fasteners
75 Electric fan screw fasteners
76 Lateral hatch screw fasteners
77 Screw Fasteners for fixing the frame box to the shield
78 Screw fasteners for fixing terminal box to box frame
79 Nuts for power supply terminals
80 Terminal board header screw fasteners
81 Terminal box lid screw fasteners
82 Brush-holder ray fixing screws
20 Drive end shield
21 Commutator end shield
22 Drive end bearing
23 Commutator end bearing
24 Rispan
30 Brush-holder ray
31 Brush-holder box
32 Brush
33 Brush terminal cover
40 Finned hatch
42 Commutator end lateral seal
43 Commutator end lateral hatch
44 Commutator end upper shield seal
45 Drive end upper shield seal
Fig. 10.1 – Demonstration general drawing for sizes P-NP 80-112
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Fig. 10.2 - Demonstration general drawing for sizes P 132-450 (For nomenclature see fig. 10.5)
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Fig. 10.3 - Demonstration general drawing for sizes NP 500-630 (For nomenclature see fig. 10.5)
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Fig. 10.4 - Demonstration general drawing for sizes NP 710-800 (For nomenclature see fig. 10.5)
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
1
1.1
1.2
1.3
1.5
1.6
Complete rotor
Commutator
Rotor coil
Shaft key (if envisioned)
Rotor pack
Shaft
2
2.1
2.2
2.3
2.4
2.5
Stator complete with poles
Shell complete with stator
Main pole complete with bobbin
Main pole bobbin
Auxiliary pole complete with bobbin
Auxiliary pole bobbin
3.1
3.2
3.3
3.4
3.5
3.7
3.8
3.9
3.10
3.11
3.19
3.20
3.21
3.22
3.23
3.24
3.26
3.30
Drive end shield
Drive end roller bearing
Drive end ball bearing
Commutator end insulated shield
Commutator end roll/ball bearing
Complete ray of brush-holder supports
Brush-holder
Bush
Terminal box
Terminal bar
Drive end and commutator end Seeger ring
Terminal box lid
Lid for cable outlet hole
Ring inside roller bearing
Ring outside roller bearing
Ray blocking plate
Drive end sealing ring
Lifting eye-bolts
4.1
4.2
4.3
4.4
4.5
4.7
4.9
4.10
4.11
4.12
4.13
4.14
4.15
4.16
4.17
Electric fan
Shaft end protection
Commutator end and drive end upper hatch
Commutator end hatch (with window for 355÷800)
Drive end hatch
Commutator end internal grease-guard
External grease-guard
Commutator end grease valve ring
Greasing nipple
Grease outlet tap
Cooling unit
Drive end Screw Fasteners for fixing the
Drive end ball bearing-holder bush
Drive end bearing spacer
Drive end internal grease-guard
5
5.1
5.2
5.3
5.4
Accessories (only if requested)
Lantern for taco
Joint for tachogenerator
Tachogenerator or other speed control device
Anemometric relay
LIST OF TIGHTENING COMPONENTS FOR DISASSEMBLY
AND RE-MOUNTING
2.6
2.7
3.12
3.13
3.14
3.15
3.16
3.17
3.18
3.25
Main poles screw fasteners
Auxiliary poles screw fasteners
Drive end shield screw fasteners
Commutator end shield screw fasteners
Terminal box lid screws
Power supply cable screw fasteners
Brush terminal cover screw fasteners
Brush-holder ray terminals screw fasteners
Terminal box screw fasteners
Brush-holder ray screw fasteners
4.6
4.8
4.18
4.21
4.22
Hatch screw fasteners
Grease-guard screw fasteners
Drive end internal grease-guard screw fasteners
Commutator end shield positioning plug
Neutral area alignment device
Fig. 10.5 - Nomenclature relative to Figs. 10.2-10.3-10.4 (P132÷NP800)
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
APPENDIX
B
b.1
b.2
b.3
b.3.1
b.3.2
b.4
b.4.1
b.5
b.5.1
b.6
b.6.1
b.7
b.8
b.9
b.10
AIR-AIR HEAT EXCHANGER
Description of the exchanger
Casing
Air filter
Filter extraction
Regeneration of the filter cloth
Cooling battery
Cleaning the pipe bundle
Internal circuit electric fan
Cleaning internal air circuit rotor
External circuit electric fan
Cleaning external air circuit rotor
Exchanger terminal box
Control equipment
Recommended maintenance cycle
Control equipment calibration
C
c.1
c.2
c.3
c.3.1
c.3.2
c.4
c.4.1
c.4.2
c.5
c.5.1
c.6
c.7
c.8
c.9
AIR-WATER HEAT EXCHANGER
Description of the exchanger
Casing
Air filter
Filter extraction
Regeneration of the filter cloth
Cooling battery
Cleaning inside pipes
External cleaning of the pipe bundle
Electric fan
Cleaning fan rotor
Exchanger terminal box
Control equipment
Recommended maintenance cycle
Control equipment calibration
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
B
AIR-AIR HEAT EXCHANGER
Normally the air-air heat exchanger is mounted on the upper side of the motor, which is in closed execution.
b.1
Description of the air-air heat exchanger
The exchanger is made up of the following main components (see figs. 1 and 2).
Casing (2.0)
Air filter (3.0)
Battery with pipe bundle (4.0)
Internal circuit Electric fan (5.0)
External circuit electric fan (6.0)
Terminal box (7.0)
Control equipment
Figures 1 and 2 highlight internal and external air flow
Fig. 1 – Air-air heat
exchanger for 132-315
machines
Fig. 2 – Air-air heat
exchanger for 355-800
machines
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Externat circuit – environmental air
Internal circuit – hot air coming from the machine
Internal circuit – cold air coming from the exchanger
Direct current machine
2.0
Casing
2.1
Screw fasteners for fixing the plate to the machine
2.2
Screw fasteners for fixing the exchanger to the plate
2.3
Plate
2.4
Seal
3.0
Filtering unit
3.1
Filter lid nut fasteners
3.2
Filtering panel
4.0
Pipe bundle
5.0
Internal circuit electric fan unit
5.1
Electric fan unit nut fasteners
5.2
Internal circuit asynchronous motor
5.3
High-pressure rotors
5.4
Asynchronous motor nut fasteners
5.5
Internal circuit pressure switch
5.6
Internal circuit air thermostat
6.0
External circuit electric fan unit
6.1
Asynchronous motor nut fasteners
6.2
External circuit asynchronous motor
6.3
Axial fan
6.4
External circuit pressure switch
7.0
Heat exchanger terminal box
8.0
Adjustable hook closure
Fig. 3 – Nomenclature relative to figures 1 and 2
b.2
Casing
The casing 2.0 guards and encloses filter 3.0, the cooling battery with pipe bundle 4.0 and the electric fan 5.0 for the circulation of
cooling air inside the machine 1.0. It is mounted onto the machine using attachment flanges with two air inlet and outlet openings
(mouths), for circulation in a closed circuit. It is connected to the motor using screws 2.1 with the interposition of a frame 2.3 for quick
removal, connected to the exchanger with screws 2.2. The chloroprene rubber seals 2.4 supply a sufficient hold.
b.3
Air Filter
The internal air filter 3.0 is mounted on the entry of the pipe bundle in the internal ventilation circuit. It can be extracted, regenerated
and is self-extinguishing.
b.3.1
Filter extraction
Loosen nuts 3.1 and remove the cover of the filtering unit; extract the filter using the relevant extraction holes.
b.3.2
Regeneration of the filter cloth
The filter cloth 3.2 can be regenerated and does not require replacement if not only after a certain number of washes. The filter is
cleaned by using compressed air, beating or suction devices, or by rinsing in warm water up to 40°C wi th soap if required. In extreme
cases petrol can be used. Do not wring after washing. If the filter is washed it must be allowed to dry before re-mounting. When the
operation has been carried out re-introduce the filter into the casing and tighten the nuts 3.1 on the cover. The filter must be controlled
periodically, to prevent excessive load losses in the ventilation circuit if the pressure switch 5.5 (see point b.8) is calibrated incorrectly
or broken.
b.4
Cooling battery
The battery 4.0 is made up of a bundle realised with expanding aluminium pipes on longitudinal perforated plates. It is treated with
resins to ensure hold.
b.4.1
Cleaning the pipe bundle
Release the hook closure levers 8.0 that block the cooling circuit unit outside casing 2.0 and raise this unit to expose the pipe entry.
Clean the pipe bundle by blowing clean, dry compressed air (2-3 bar).
b.5
Internal circuit electric fan
The internal circulation of air in a closed circuit for cooling the direct current machine takes place using an electric fan, made up of a
three-phase asynchronous motor 5.2 and high-pressure rotor 5.3. After filtering the hot air returns into the cycle, cooling down during
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
passage through the pipe bundle. The correct direction of rotation of the fan is indicated by an arrow. It is important that the rotor is
kept clean, because the presence of dirt or deposits may cause unbalance, with consequent vibrations.
b.5.1
Cleaning of internal air circuit rotor
Loosen nuts 5.1 that block the electric fan unit to the casing 2.0 and slide the motor-rotor unit out of the casing. Clean the blades with a
jet of compressed air and if necessary, by brushing or washing. Re-mount the electric fan and tighten nuts 5.1.
b.6.
External circuit electric fan
Environmental air is made to circulate inside the cooling battery pipes. Circulation of the air takes place by means of the electric fan 6.0
that sucks air from below upwards using the axial fan 6.3 activated by the three-phase asynchronous motor 6.2. The correct direction of
rotation of the fan is indicated by an arrow.
b.6.1
Cleaning of external air circuit rotor
To check the cleanliness of the rotor release the hook closure levers 8.0 that block the unit 2.0 to the casing, and lift it for access to the
fan. Clean with a jet of compressed air and if necessary, by brushing or washing. Re-mount by re-attaching the hook closure levers 8.0.
b.7
Air-air heat exchanger terminal box
The exchanger has a terminal box 7.0 for connection of all control devices and to power asynchronous motors.
b.8
Control equipment (see diagram in fig. 5)
The heat exchanger has two pressure switches 5.5 and 6.4 to signal the development of any faults (excessive drop in pressure) in the
internal or external air circuits. A thermostat 5.6 is also envisioned in the internal circuit, to signal any excessive temperature of the air
entering the machine. The pressure switch 5.5 and thermostat 5.6 are mounted inside the terminal box 7.0.
DANGER!
Before carrying out any maintenance operations, ensure that the electric machine and the heat
exchanger fans have been disconnected from the network.
b. 9
Recommended maintenance cycle
Component
Operation
Filter
Check if blocked and clean if necessary
Cooling battery
Cleaning of pipe bundle
Internal and external circuit
Cleaning of rotor
electric fans
Check equipment efficiency and tightness of
Control equipment
electric connections
Seals
Replace all seals
Screws
Check for any loosening
Frequency (hours)
750
4000
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8000
2500
15000
2500
M-CC-80-800-E-10
55
ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
P2
PRESSURE SWITCH
POS. 5.5
P1
PRESSURE SWITCH
POS. 6.4
M2
ASYNCHRONOUS MOTOR
POS. 6.2
T
THERMOSTAT
POS. 5.6
M1
ASYNCHRONOUS MOTOR
POS. 5.2
Fig. 5 – Air-air heat exchanger wiring diagram
Power supply from three-phase line (400 V – 50 Hz if not indicated differently)
Power supply from single-phase line (230 V - 50 Hz if not indicated differently)
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
b.10
Calibration of control equipment
-Internal air pressure switch:
The pressure switch is calibrated in our test room. In case of replacement or anomalous functioning of the pressure switch, refer to the
following instructions for calibration.
1)
2)
3)
4)
5)
Position the control knob in proximity of the minimum calibration value.
Activate ventilation.
Turn the control knob slowly in a clockwise direction until commutation of the contact.
Turn the control knob again in an anti-clockwise direction by a few millimetres (≅ 0.2 - 0.3 mbar).
Disconnect ventilation and check, much earlier that the fan is at a complete standstill, and the contact returns to the rest
position.
-Internal air thermostat:
The internal air thermostat is calibrated in our test rooms. In case of replacement or anomalous functioning of the thermostat, follow the
instructions below for new calibration
1) Turn the relevant control knob in proximity of the environmental temperature.
2) Check commutation of the contact.
3) Turn the control knob again, setting it in proximity of the temperature of 45/55°C. If the machine is installed in a place with
different environmental temperature from –20°C ÷ +4 0°C consult SICMEMOTORI.
4) Check return of the contact to the rest position.
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
C
AIR-WATER HEAT EXCHANGER
Normally the air-water heat exchanger on the upper side of the motor, which is in closed execution.
c. 1
Description of the exchanger
The air-water heat exchanger is made up of (see figs. 6 and 7):
Casing (2.0)
Air filter (3.0)
Air-water cooling battery (4.0)
Electric fan (5.0)
Exchanger terminal box (6.0)
Control equipment.
Fig. 6 – Air-water heat exchanger for
machines 132-315
Fig. 7 – Air-water heat
exchanger for machines 355800
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
Hot air coming from the machine
Cold air coming from the exchanger
1.0
2.0
2.1
2.2
2.3
2.4
3.0
3.1
3.2
4.0
4.1
4.2
4.3
4.4
4.5
5.0
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
6.0
Direct current machine
Casing
Screw fasteners for fixing the plate to the machine
Screw fasteners for fixing the heat exchanger to the plate
Plate
Seal
Filtering unit
Filtering unit lid nuts
Filter cloth
Air-water cooling battery
Cooling battery screw fasteners.
Tap on delivery pipe
Tap on discharge pipe
Flange on delivery pipe
Flange on discharge pipe
Electric fan
Electric fan screw fasteners
Asynchronous motor
Rotor
Asynchronous motor screw fasteners
Pressure switch
Thermostat
Water leakage indicator
Flow metre
Heat exchanger terminal box
Fig. 8 - Nomenclature relative to figures 6 and 7
c.2
Casing
The casing 2.0 guards and encloses filter 3.0, the cooling battery 4.0 and the electric fan 5.0 It is mounted onto the machine using
attachment flanges with two air inlet and outlet openings (mouths), for circulation in a closed circuit. It is connected to the motor using
screws 2.1 with the interposition of a frame 2.3 for quick removal, connected to the exchanger with screws 2.2. The chloroprene rubber
seals 2.4 keep a sufficient hold.
c.3
Air Filter
Filter 3.0 is mounted at the entry of the cooling battery. It can be extracted, regenerated and is self-extinguishing.
c.3.1
Removal of the filter
Loosen nuts 3.1 and remove the cover of the filtering unit; extract the filter using the relevant extraction holes.
c.3.2
Regeneration of the filter cloth
The filter cloth 3.2 can be regenerated and does not require replacement if not only after a certain number of washes. The filter is
cleaned by using compressed air, beating or suction devices, or by rinsing in warm water up to 40°C wi th soap if required. In extreme
cases petrol can be used. Do not wring after washing. If the filter is washed it must be allowed to dry before re-mounting. Re-mount
and tighten the nuts 3.1. The filter must be controlled periodically, to prevent excessive load losses in the ventilation circuit
c.4
Cooling battery
The 4.0 battery is made up of a copper pipe bundle within a pack of thin aluminium sheet. Water passes through these pipes. The air
brushes against the thin aluminium sheet, which subtract heat and transmit it for conduction to the pipes. Attention to water features:
except for different agreements, the heat exchangers are envisioned for industrial or rural water, without suspended substances and
dimensioned for water entering at a maximum temperature of 26°C, with max. pressure of 7 bar. The pipe bundle ends with a
normalised flange 4.4 and 4.5 for attachment to the delivery pipes and discharge of water. Drainage tap 4.2 is mounted on the delivery
pipes. Tap 4.3 is mounted on the water return for relief.
c.4.1
Cleaning inside pipes
Close the slide valve (not supplied), positioned upstream from the delivery flange to interrupt the supply of water. Remove lid 4.2 on the
delivery pipe to remove all water completely from the battery. Remove lid 4.3 and then introduce a jet of compressed air into the copper
pipes to eliminate dirt and deposits. If necessary wash with de-scaling agents. Use suitable detergents periodically to reduce the
formation of deposits inside the pipes.
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
c.4.2
Cleaning the outside of the pipe bundle
Loosen screws 4.1 that block the battery to the casing. Slide the battery out of the casing and clean the pipe bundle with a jet of
pressurised air or by washing to eliminate and dust deposits. Re-mount the battery and tighten screws 4.1.
c.5
Electric fan
The electric fan 5.0 makes air circulate in the closed machine-exchanger circuit; it is made up of a three-phase asynchronous motor 5.2
and rotor 5.3. The correct direction of rotation is indicated by an arrow.
c. 5.1 Cleaning of the fan rotor
To check if the rotor is clean loosen screws 5.1 that block the electric fan unit to the casing and slide the motor/rotor unit out of the
casing. Deposits on the rotor may cause unbalancing, with consequent vibrations. Clean with a jet of pressurised air, by brushing or
washing. Re-mount the electric fan and tighten screws 5.1.
c.6
Air-water heat exchanger terminal box
The exchanger is supplied with a terminal box 6.0 for connection of all control equipment e and for the power supply of the
asynchronous motor.
DANGER!
Before carrying out any maintenance operation, ensure that any electric machine and its fan
are disconnected from the network.
Also ensure that the cooling water slide valves are closed.
c. 8
Recommended maintenance cycle
Component
Filter
Operation
Check if blocked and clean if necessary
External cleaning of the pipe bundle
Frequency (hours)
750
4000
Cooling battery
Electric fan
Control equipment
Seals
Screws
Total cleaning
Clean rotor
Check equipment efficiency and check tightening
of the electric connections
Replacement of all seals
Check for any loosening
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
Tel. +39-011-4076311 - Fax +39-011-4500047 – www.sicmemotori.com – sicmemotori@sicmemotori.com
8000
8000
2500
15000
2500
M-CC-80-800-E-10
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
c.7
Control equipment (see diagram in fig. 9)
X
WATER LEAKAGE
DETECTOR
POS. 5.7
H
FLOW SWITCH
POS. 5.8
P
PRESSURE SWITCH
POS. 5.5
T
THERMOSTAT
POS. 5.6
M
ASYNCHRONOUS MOTOR
POS. 5.2
Fig. 9 – Air-water heat exchanger wiring diagram
a)
b)
Power supply from three-phase line (400 V – 50 Hz if not indicated differently)
Power supply from single-phase line (230 V – 50 Hz if not indicated differently)
In the standard version the indicator is complete with:
•
a pressure switch 5.5 on the air circuit to signal any abnormal drops in pressure.
•
a thermostat 5.6 to signal any excessive temperature of the air entering the machine.
•
A flow metre 5.8 to signal an excessive reduction of water flow.
•
A water loss indicator5.7 (only for heat exchangers on 225 and upper range machines).
The pressure switch 5.5 and thermostat 5.6 are mounted inside the terminal box 6.0.
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
c.9
Calibration of control equipment
-Pressure switch:
The pressure switch is calibrated in our test room. In case of replacement of anomalous functioning of the pressure switch, refer to the
following instructions for calibration.
6) Position the control knob in proximity of the minimum calibration value.
7) Activate ventilation.
8) Turn the control knob slowly in a clockwise direction until commutation of the contact.
9) Turn the control knob again in an anti-clockwise direction by a few millimetres (≅ 0.2 - 0.3 mbar).
10)Disconnect ventilation and check, much earlier that the fan is at a complete standstill, and the contact returns to the rest
position.
-Thermostat:
The thermostat is calibrated in our test rooms. In case of replacement of anomalous functioning of the thermostat, refer to the following
instructions for calibration.
5) Turn the relevant control knob in proximity of the environmental temperature.
6) Check commutation of the contact.
7) Turn the control knob again, setting it in proximity of the temperature of 45/55°C. If the machine is installed in a place with
different environmental temperature from –20°C ÷ +4 0°C consult SICMEMOTORI.
8) Check return of the contact to the rest position.
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
Tel. +39-011-4076311 - Fax +39-011-4500047 – www.sicmemotori.com – sicmemotori@sicmemotori.com
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
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Please send a copy of this form via fax to:
Sicme Motori srl
Strada del Francese 130
10156 Turin – Italy
fax +39-011-4500047
Attn. Quality System Management Manager
Sicme Motori – Strada del Francese 130 – 10156 Turin – Italy
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ISTRUCTIONS FOR INSTALLATION, USE AND MAINTENANCE FOR P-NP-XP-NE SERIES D.C. MACHINES
This document and the information it contains are exclusive property of SICME MOTORI srl.
The document and the information cannot be reproduced, even partially, nor shown to, referred to or sent to third parties
without authorisation from SICME MOTORI srl.
The information contained in this publication is only indicative and can be modified without forewarning. SICME MOTORI srl
is not liable for use of the products illustrated, outside of the limits of the indicated features.