GEARLESS PERMANENT MAGNET SYNCHRONOUS MOTOR

SMT SERIES

SMT 140AC

SMT 200AC

SMT 225

GEARLESS PERMANENT MAGNET

SYNCHRONOUS MOTOR

Operation and Maintenance Manual

SMT 140AC

SMT 200AC

SMT 225

Operation and Maintenance Manual– SMT Series SMT 140AC/ SMT 200AC/ SMT225

Table of Content

1. General Information

1.1.SMT Series Motors

1.2.Structure of Operation and Maintenance Manual

1.3.User

1.4.Copyright

2. Safety Instructions

2.1.General

2.2.Technical Personnel Responsibility

2.3.Signs and Symbols Used in the Manual

2.4.Primary Safety Instructions

3. Condition of Product

3.1.Motor Dimensions and Weights

3.1.1. SMT 140AC-10/15/20

3.1.2. SMT 200AC-15/17/20

3.1.3. SMT 225-20/30

3.2.Operational Area

3.3.Transport and Handling

3.4.Intermediate Storage

4. Mechanical Installation

4.1.Mechanical Safety Precautions

4.2.Motor Mounting

4.3. Rope Protection Handle Adjustment

5. Electrical Connection

5.1. Electrical Safety Precautions

5.2. Motor Terminal Connection

5.3. Encoder Connection

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17

17

17

14

15

16

20

11

12

13

9

9

10

13

14

6

6

6

7

9

5

5

6

4

4

4


5.4. Electromagnetic Brake Connection

5.5. Electromagnetic Brake Types and Specifications

6. Start-Up

6.1.Operating Conditions

6.2. Check List

6.3. EN 81-1:1998+A3:2009 Brake Tests

6.3.1. Overload Test

6.3.2. One Brake Failure Test (only for Double Brake)

6.3.3. Micro-Switch Test

6.4. Emergency Operations

6.4.1. Emergency Electrical Operation

6.4.2. Emergency Mechanical Operation (by Brake Releasing)

6.4.3. Power Failure Operation

7. Faults and Remedy

8. Service and Maintenance

8.1. General Information on Maintenance

8.2. Inspections

8.3. Spare Parts

8.3.1. Changing Encoder

9. Enclosure

9.1.Motor Terminal Connection Diagrams

9.2.Electromagnetic Brake Connection Diagram

9.3.Encoder Connection Diagrams

32

33

33

30

32

32

36

36

38

39

26

26

26

25

25

26

28

29

21

23

24

24

24

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1.General Information

1.1.SMT Series Motors

The SMT Series Motors are designed as gearless drive for rope system elevators with traction pulley.

No other drive applications are allowed without prior permission of AKAR.

The SMT Series Motors are ideal for both roomless and machine room applications due to its compact design.

Thanks to its direct drive technology, the SMT Series Motors offer maximum travel comfort, minimum noise level, ease of installation and energy saving up to 40%. In addition to that, the SMT Series Motors are environment friendly since no oil is required for operation.

CE certificated AKAR Electromagnetic Disc Brakes provide maximum security and are approved as a safety device for ascending car overspeed protection.

Therefore, there is no need to use bi-directional safety gear according to EN

81-1:1998+A3:2009. One-direction operated safety gear is sufficient.

1.2.Structure of Operation and Maintenance Manual

This manual is designed as a part of the motor and should be kept as a reference in order to be consulted when it is required. All people entrusted with the installation, operation, maintenance or repair of the drive must have read and understood manual completely and must comply with manual at all times.

AKAR takes no responsibility for damage or disruption caused by disregard of this manual.

In the interest of technical progress, AKAR reserves the right to make changes in the drive when it is necessary.

1.3.User

This manual addresses to the people involved in installation, operation, maintenance and repair services.

1.4.Copyright

The copyright for this manual is held by Akar Asansör Mot. Mak. San. Ltd. Þti. ,

Istanbul. Information in this manual is subject to change without any prior notice. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose without the express written permission of AKAR.

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2. Safety Instructions

2.1. General

The SMT Series Motors are not ready-to-use products for the end users. Prior to its operation; installation of the system with its necessary safety components, which may vary depending on the application, have to be completed. Systems reliability and system performance depend on the correct and safe installation of each component respectively.

2.2. Technical Personnel Responsibility

Installation, electric connections, operation, maintenance and repair services have to be performed by authorized and qualified technical personnel in conformity with the relevant standard and regulations.

2.3. Signs and Symbols Used in the Manual

The following signs and symbols are used throughout the manual in order to highlight hazardous areas as well as useful information and advice for users.

DANGER! Severe injury may occur!

Hazardous area. Death or severe injury may occur if the stated precautions are not taken.

CAUTION! Material damage may occur!

Material damage area. Significant material damage may occur if the stated precautions are not taken.

DANGER! Electrical shock hazard!

Dangerous electrical voltage area. Death or severe injury may occur if the stated precautions are not taken.

INFORMATION

Additional information for user.

ADVICE

Useful hints and advices for user.

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2.4. Primary Safety Instructions

The motor is only to be used for specific purpose and elevator systems in which the producer was informed during order placement.

The motor is only to be operated according to the specifications on the identification label.

The motor has a casted lifting ring. This ring has been designed to carry only the motor with its brake and sheave. Do not load any other components, e.g. ropes, sockets etc., on the motor.

The motor does not generate any torque when the motor current is cut off. In this situation, if the brakes are opened, the cabin will accelerate out of control . Thus, it is highly recommended to shortcircuit the motor windings during the installation of the elevator system.

This will lead to the speed depending braking torque which is similar to the friction in traction machine-motor system. The short-circuit has to be made by main contacts of the contactors. Shortcircuiting of the windings can only be made when the motor wires do not carry any current.

Safety components which are monitoring brake releases, e.g. micro-switches, should not be demounted or deactivated.

When the motor shaft is turning, voltage will be induced and applied to the motor terminal!

The motor is only to be used with a screened power cable which also contains a grounding conductor. Please make sure that grounding of the screened power cable is performed separately from the grounding connection of the building.

U, V, W phase conductors of power cable should be connected to the connection box terminals in the same order of auto-tuning realization.

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Operation and Maintenance Manual– SMT Series SMT 140AC/ SMT 200AC/ SMT225 Operation and Maintenance Manual– SMT Series SMT 140AC/ SMT 200AC/ SMT225

3. Condition of Product

3.1.Motor Dimensions and Weights

3.1.1. SMT 140AC-10/15/20

The SMT Series Motors are securely protected against overheating by the thermistors (PTC) installed into phase windings.

Connections should be made through PTC controller. Max. 2.5 Volt

DC voltages can be applied to PTC. Applying greater voltages may result in PTC damages and the motors will be no longer under warranty.

The brake coils are designed based on the voltage specified on the brake label. The coils are protected against overvoltage by parallel connection of varistors.

Connection of brake micro-switches into the connection box is made through normally open (NO) contacts.

Encoder connection diagrams for various encoder models are given in 9.3.Encoder Connection Diagrams. Connections should be made in accordance with given diagrams.

The motors will be no longer under warranty in case of any intervene to the red seals on the motors. Please get in contact with manufacturer if disassembly is required.

Encoder cable should be isolated from the electromagnetic effect caused by main supply cable. Otherwise, inverter errors and travel discomfort may occur due to the stray current.

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Motor Type

Pulley Dia.-

No.of Ropes*Rope Dia.

A

(mm)

B

(mm)

C

(mm)

D

(mm)

E

(mm)

F

(mm)

WEIGHT

(kg.)

SMT140AC-10 Ø210 - 4..5 x Ø6,5 (#)

SMT140AC-10 Ø240 - 4 x Ø6,5 (#)

SMT140AC-15

SMT140AC-15

Ø210 - 4..5 x Ø6,5 (#)

SMT140AC-15

Ø210 - 6..7 x Ø6,5 (#)

Ø240 - 4..7 x Ø6,5 (#)

SMT140AC-15 Ø320 - 4 x Ø8

Ø210 - 7 x Ø6,5 (#) SMT140AC-20

SMT140AC-20 Ø240 - 7 x Ø6,5 (#)

SMT140AC-20 Ø210 - 9 x Ø6,5 (#)

SMT140AC-20 Ø240 - 9 x Ø6,5 (#)

SMT140AC-20

Ø320 - 4 x Ø8

SMT140AC-20

Ø400 - 4 x Ø10

(#) Specially certificated rope

509

509

559

559

459

459

509

509

574

582

559

559

92,5

109

97,5

109,5

113,5

102,5

124,5

128,5

139,5

64

96

64

88

96

74

88

96

118

Ø 210 130

Ø 240

Ø 210

Ø 210

130

170

Ø 240

Ø 320

170

170

Ø 210

Ø 240

170

200

Ø 210

143,5 125,5 Ø 240

200

200

200

117,5

127,5

74

94

Ø 320

Ø 400

200

200

82

82

93,5

93,5

93,5

93,5

93,5

93,5

93,5

93,5

93,5

93,5

115

115

130

130

130

140

150

170

170

170

160

170

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3.1.2. SMT 200AC-15/17/20


3.1.3. SMT 225-20/30

Motor Type

Pulley Dia.-


A

(mm)

B

(mm)

C

(mm)

D

(mm)

WEIGHT

(kg.)

SMT200AC-15 Ø240 - 7..5 x Ø6,5 (#) 656

Ø320 - 4..6 x Ø8 653 SMT200AC-15

SMT200AC-15 Ø400 - 4..5 x Ø10 653

SMT200AC-17 Ø240 - 7..10 x Ø6,5 (#) 656

SMT200AC-17 Ø240 - 11 x Ø6,5 (#) 666

SMT200AC-17

SMT200AC-17

Ø320 - 5..6 x Ø8

Ø400 - 5 x Ø10

653

653

SMT200AC-20 Ø240 - 10 x Ø6,5 (#) 656

SMT200AC-20 Ø240 -11..12x Ø6,5 (#)

SMT200AC-20

SMT200AC-20

SMT200AC-20

Ø320 - 5..6 x Ø8

Ø320 - 7 x Ø8

Ø400 - 4..5 x Ø10

670

653

653

653


142 125,5

123

126

142

89

94

125,5

149

123

135,5

126

146

123

126

142

135,5

89

94

125,5

140

89

114

94

240

320

400

240

240

240

320

400

240

320

320

400

285

280

285

290

280

273

280

285

255

260

265

270

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Motor Type

Pulley Dia.-


A

(mm)

B

(mm)

C

(mm)

D

(mm)

E

(mm)

F

(mm)

SMT225-20

SMT225-20

SMT225-20

SMT225-20

SMT225-20

SMT225-30

SMT225-30

SMT225-30

SMT225-30

Ø320 - 7 x Ø8 810

810 Ø320 - 8 x Ø8

Ø400 - 5 x Ø10 810

810 Ø400 - 7 x Ø10

Ø500 - 5 x Ø12 810

Ø320 - 11 x Ø8 910

Ø320 - 9..10 x Ø8

SMT225-30

SMT225-30


910

910 Ø400 - 5..6 x Ø10

Ø400 - 7 x Ø10 910

910 Ø500 - 5 x Ø10

Ø500 - 5..6 x Ø12 910

135

135

133

143

133

158

148

133

143

133

133

115

115

Ø320 Ø24

Ø320 Ø24

Ø400 Ø24 112

132 Ø400 Ø24

Ø500 Ø24 112

162 Ø320 Ø30

Ø320 Ø30 142

112 Ø400 Ø30

Ø400 Ø30 132

112

112

Ø500 Ø30

Ø500 Ø30

220

320

320

320

220

220

220

220

320

320

320

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3.2. Operational Area

The SMT Series Motors are ideal for both roomless and machine room applications due to its compact design.

Thanks to its direct drive technology, the SMT Series Motors offer maximum travel comfort, minimum noise level, ease of installation and energy saving up to 40%. In addition to that, the SMT Series Motors are environment friendly since no oil is required for operation.




Operational area in which the motor is installed into should satisfy the following conditions,

• The ambient temperature should be between 0 °C - 40 °C.

• Altitude should be less than 1000 meters.

• Humidity should be less than 95%.

• Drive should be installed indoor.

• Be aware of the protection class specified on the identification label.

• Protect against external factors (water, humidity, dust etc.) and from construction waste.

Please get in contact with manufacturer in case that the installation conditions differ from the specifications above.

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3.3. Transport and Handling

Akar SMT Series of motors are consigned to the transport company with the packaging agreed upon.

The motor has a casted lifting ring. This ring has been designed to carry only the motor with its brake and sheave.

• Transport the motor with its original packaging or by lifting it from the casted lifting ring.

• Use appropriate lifting equipment by taking into account the motor weights. Motor weights are given in the tables in 3.1.Motor

Dimensions and Weights.

• Avoid excessive vibration and shock during transport.

Do not load any other components, e.g. ropes, sockets etc., on the motor.

Take into account the center of gravity while lifting.

Check the packaging for possible loss or damage and inform the transport company when necessary. Any loss or damages caused during transportation are not covered by guarantee.

3.4. Intermediate Storage

In the case of intermediate store,

• Store the motors in their original packaging in a dry area.

• Protect against the excessive fluctuations in temperature.

(recommended storage temperature: -20 °C until 60 °C)

• Protect against external factors (water, humidity, dust etc.) and from construction waste.

• Avoid excessive storage times.

(recommended max. storage time: 1 year)

Before the installation of motor, check the motor bearings by releasing the brake and rotate the rotor manually. If unusual noise is observed, please get in contact with manufacturer.

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4. Mechanical Installation

4.1.Mechanical Safety Precautions

Mechanical mounting is only to be performed by authorized and trained personnel.

Conformity of the installation to the standards is the responsibility of the contracting company.

If you have any problems or doubts, please get in contact with Akar for assistance. (Contact info can be found at the back cover of this manual.)

• Before the installation of motor, check the motor for possible damages occurred during transportation.

The motor has a casted lifting ring. This ring has been designed to carry only the motor with its brake and sheave. Do not load any other components, e.g. ropes, sockets etc., on the motor.

• Please do not apply any force on the motor, brakes or pulleys!

•The motor and especially brakes should be covered and protected against water, humidity, dust, construction waste etc.

•The air-flow around the motor should not be blocked in any manner. Any violation may result in overheating of motor.

Spare at least 150 mm (axial direction) between the brake and the shaft wall in order to enable the encoder reachable.

The SMT Series motors are supplied with factory-mounted electromagnetic brakes on. Brake adjustments are done by Akar.

There is no need for any adjustment. Please do not try to make any further adjustments! Otherwise, the brakes and the motor will be no longer under warranty.

An exchange of the brake can only be carried out by assistance of

Akar. If brake exchange is required, please get in contact with manufacturer .

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Please do not apply any welding operation on the motors!

Magnets and bearings may be damaged. In any violation, the motors will be no longer under warranty.

In case of any interference in the motor, brake and its accessories, the motors will be no longer under warranty.

4.2. Motor Mounting

The SMT Series motors have mounting holes at the base of the motor body. a.

SMT 140AC-10/15/20 type motors have to be fixed with 4 screws M16 (class 8.8) to the mounting plate. (Apply 195Nm torque) b.

SMT 200AC-15/17/20 and SMT 225-20 type motors have to be fixed with 4 screws M20 (class 8.8) to the mounting plate.

(Apply 395Nm torque) c.

SMT 225-30 motor has to be fixed with 4 screws M24 (class 8.8) to the mounting plate. (Apply 680Nm torque) d.

Tighten the connection screws diagonally by applying the same force on each screw.

e.

Recommended mounting surface roughness Ra 3.2 ~ 4 µm f.

Mounting surface should be durable and rigid in order to resist the forces applied on it.

g.

Rubber buffers should be used to absorb vibration.

1. Machine Room System 2. Machine Roomless System

Figure 1_ Sample Maunting of the Motor

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4.3. Rope Protection Handle Adjustment

The SMT Series motors protection handles on.

are supplied with two factory-mounted rope

• The rope protection handles are fixed to the front cover of the motor.

• The rope protection handles can be adjusted depending on the installation direction of the motor.

• There should be 3 mm distance between the rope and rope protection handles.

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5. Electrical Connection

5.1. Electrical Safety Precautions

Electrical connections are only to be done by authorized and trained personnel.

Conformity of the installation to the standards is the responsibility of the contracting company.

If you have any problems or doubts, please get in contact with Akar for assistance. (Contact info can be found at the back cover of this manual.)

Before the installation of motor, check the cables for possible damages occurred during transportation.

The motor should not be connected directly to main supply without an inverter!

5.2. Motor Terminal Connection

The SMT Series motors require an inverter and an encoder to operate.

• Carry out the motor terminal connections in accordance with the enclosed circuit diagrams (Figure 2 and Figure 3).

• Unless the otherwise specified, the encoder offset should be set to 0. In order to do that, connect the DC voltage with U phase to (+) and V and W phases to (-).

• U, V, W phase conductors of power cable should be connected to the connection box terminals in the same order of auto-tuning realization and should not be changed. Otherwise, the motor can accelerate out of control.

• Make sure that grounding connection of the building is successfully performed.

• The motor is only to be used with a screened power cable which also contains a grounding conductor. Please make sure that grounding of the screened power cable is performed separately from the grounding connection of the building.

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The SMT Series Motors are securely protected against overheating by the thermistors (PTC) installed into phase windings. Connections should be made through PTC controller. Max. 2.5 Volt DC voltages can be applied to PTC. Applying greater voltages may result in PTC damages and the motors will be no longer under warranty.


SMT200AC-SMT225 TYPE MOTOR CONNECTION DIAGRAM

Figure 2 – SMT 140AC Motor Terminal Connection Diagram

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Figure 3 - SMT 200AC/ SMT225 Motor Terminal Connection Diagram

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5.3. Electrical Safety Precautions

The SMT Series motors are supplied with factory-mounted encoder on the main shaft.

•Encoder is supplied with a 7-meter screened cable.

•Encoder must be compatible with the software of the inverter.

•Encoder color code is given in Table 1 .

•Carry out the encoder terminal connections in accordance with the encoder connection diagrams in 9.3. Encoder Connection

Diagrams.

Factory default settings are determined by Akar during the Autotuning process. Please do not try to make any further adjustments or demount the encoder!

Exchange of the encoder is only to be performed by authorized and trained personnel. In case of an exchange, encoder should be reintroduced to the inverter.

Avoid the encoder from mechanical shock. It may result in loss of measurement precision.

Do not directly touch the connection pins of the encoder or encoder cable. The encoder is sensitive to electrostatic discharges and may be destroyed by static discharge.

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Table 1- Encoder Connection Color Table

Page 19 / 42


5.4. Electromagnetic Brake Connection

The SMT Series motors are supplied with factory-mounted electromagnetic brakes on. Brake adjustments are done by Akar. There is no need for any adjustment.

Please do not try to make any further adjustments!

Otherwise, the brakes and the motor will be no longer under warranty.

An exchange of the brake can only be carried out by assistance of

Akar. If brake exchange is required, manufacturer .

please get in contact with

•Electromagnetic brakes should be connected in accordance with the specifications on the brake label and the brake connection diagram given in Figure 3. (for SMT 200 AC and SMT 225) and Figure

4 (for SMT 140 AC).

•Electromagnetic brakes are designed for static braking applications. Brake pad/lining wear can be kept at its minimum level when the brake is only used for static applications. Therefore, generally the break does not require maintenance.

•Dynamic applications are limited to only test braking and emergency braking by the manufacturer.

•In case of power cut-off/blackout, it is not possible to release the brakes manually/mechanically. The brakes can be release with the help of a power supply. (e.g. UPS, battery)

•The brakes are securely protected against overvoltage, resulting from switching, by varistors. Brakes are supplied with factorymounted varistors in the terminal box.

•Brake release control should be performed via micro-switch mounted on the brake. Otherwise, the brake will be no longer under warranty.




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Micro-switches are used to monitor the instantaneous situation of the brakes. Depends on the signal coming from micro-switches, inverter decides if the system should run or not.

If the signal confirms that the brake is released successfully, inverter will let the system run. Otherwise, if the brake cannot be released successfully, inverter will stop the system. Therefore, the motor cannot draw more than its nominal current to overcome the break torque. Consequently, both inverter and the motor are protected against overvoltage.

It is recommended to use two contactors (on AC side and DC side) for brake switching. During normal operation, AC-side contactor should be switched by the brake relay. It will help reducing the mechanical noise.

On the other hand, DC-side contactor should be switched by the motor contactors. This will lead to a quick respond and fast closing of the brake in case of an emergency stop.

Figure 2 – SMT 140AC Brake Connection Diagram

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5.5. Electromagnetic Brake Types and Specifications

Motor Type Brake Type Brake

Power

(W)

BR 210 S*

SMT 140AC

10/15/20

BR 320 S

BR 425 S

140

Brake

Current

(A)

Circuit

Breaker

Suitable

Cable Cross

Section

0.714

4 A 0.50 mm 2

BR 620 D

SMT 200AC

15/17/20

BR 730 D

BR 850 D

2x114 1.3

4 A

0.75 mm

2

SMT 225AC

20/30

BR/1-

800/1200

2x110 1 4 A 0.75 mm 2

*Single brake

**Double brake

(Standard brake voltage is 198V DC.)

If a lower voltage value than the operating voltage is applied, the brake will not be working properly. Friction noise may occur, motor may draw greater current and overheat or inverter may give error.

If a higher voltage value than the operating voltage is applied, the brake will be overheating in a short time.

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6. Start-Up

6.1.Operating Conditions

Operational area in which the motor is installed into should satisfy the following conditions,

• The ambient temperature should be between 0 °C - 40 °C.

• Altitude should be less than 1000 meters.

• Humidity should be less than 95%.

• Drive should be installed indoor.

• Be aware of the protection class specified on the identification label.

• Protection against external factors (water, humidity, dust etc.) and from construction waste.

The motors should not be operated in explosive gas atmosphere.

Please get in contact with manufacturer in case that the installation conditions differ from the specifications above.

6.2. Check List

Before the start-up, please make sure that the following points are fulfilled:

• Insulation and operating conditions are in conformity with the motor label and with this manual (see above).

• Motor operating values are in conformity with the values on the motor label

• Brake is supplied with the voltage in conformity with value on the brake label.

•Mechanical and electrical connections have been performed in accordance with this manual.

•Make sure that the short-circuiting of the motor windings is performed.

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• Motor is installed in horizontal plane and well balanced.

• Motor rotation direction is correct.

• Electrical insulation resistance is sufficient.

• The air-flow around the motor is not blocked.

• Safety components are installed properly.

• Grounding connection is successfully connected.

• PTC connection is made through PTC controller with max. 2.5V

DC.

• All the precautions are taken for the parts that are moving and under electrical tension.

• Motor is operating free of vibration and noise.

• Mounting of screws in the housings is made properly.

• All the cable entries are sealed.

Please acknowledge that the given checklist might not be covering all the possibilities. Additional tests or controls may be required.

Therefore, commissioning and start-up should be done by authorized and trained personnel who have knowledge and experience in commissioning and start-up.

6.3. EN 81-1:1998+A3:2009 Brake Tests

Before starting the test, please make sure that the short-circuit of the motor is disabled. Thus, only the effect of the brake can be tested without motor blockage.

It is recommended to perform the test at the midpoint of the hoistway.

6.3.1. Overload Test

The test should be performed while the car is descending at the nominal speed with the 125% of nominal load stated on the motor label. Supply of the motor and the brake should be cut-off.

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6.3.2. One Brake Failure Test (only for Double Brake)

In case of the motor is supplied with double brake, the test should be performed while the car is descending at the nominal speed with the nominal load stated on the motor label. Supply of the motor and the brake should be cut-off.

Remark 1: While the test is being performed, one of the brakes should be released all the time during the test. The other one should be operated and tested independently.

Remark 2 : While the test is being performed, the elevator system should be observed carefully. If no deceleration is observed, released break should be closed immediately.

6.3.3. Micro-Switch Test

Micro-switches should be tested independent of the brakes. Micro-switch should be open or closed instantly depending on the usage in the security circuit. In case of incorrect or unexpected signal of the micro-switch, operation should not be initiated.

6.4. Emergency Operations

Emergency operation is only to be performed by authorized and trained

For permanent magnet synchronous motors, the effort required to move the cabin upwards with its nominal load exceeds 400N.

Therefore, it is compulsory to accommodate a means of emergency electrical operation in accordance with 14.2.1.4. (EN 81-

1:1998+A3:2009 Item 1 2.5.2)

6.4.1. Emergency Electrical Operation

Emergency operation should be performed with a means of emergency electrical operation (see above) and this means shall be located in the relevant machinery space:

- Machine room (6.3),

- Machinery cabinet (6.5.2) or

- On the emergency and tests panel(s) (6.6).

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Furthermore, this means should fulfill the following conditions according to

14.2.1.4 simultaneously: a) operation of the emergency electrical operation switch shall permit the control of car movement by constant pressure on buttons protected against accidental operation. The direction of movement shall be clearly indicated; b) after operation of the emergency electrical operation switch, all movement of the car except that controlled by this switch shall be prevented. The effects of the emergency electrical operation shall be overridden by switching on the inspection operation; c) the emergency electrical operation switch shall render inoperative by itself or through another electric switch in conformity with 14.1.2 the following electric devices:

• those mounted on the safety gear, according to 9.8.8;

• those of the overspeed governor, according to 9.9.11.1 and

9.9.11.2;

• those mounted on the ascending car overspeed protection means, according to 9.10.5;

•those mounted on the buffers, according to 10.4.3.4;

•final limit switches, according to 10.5; d) the emergency electrical operation switch and its push-buttons shall be so placed that the machine can be observed directly or by display devices

(6.6.2c)); e) the car speed shall not exceed 0,63 m/s.

It is recommended to use an additional power supply for emergency operation, e.g. UPS, battery.

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6.4.2. Emergency Mechanical Operation (by Brake Releasing)

Mechanical emergency operation shall be performed if and only if there is no other option is left for emergency rescue (e.g. brake burning).

In order to prevent the cabin from accelerating out of control, it is highly recommended to short-circuit the motor windings.

This will lead to the speed depending braking torque which is similar to the friction in traction machine-motor system. The short-circuit has to be made by main contacts of the contactors. Short-circuiting of the windings can only be made when the motor wires do not carry any current.

Emergency mechanical operation is only to be performed by authorized and trained personnel by following the safety instructions below:

• Emergency mechanical operation shall be performed by using the brake releasing device.

•Make sure that the short-circuiting of the motor windings is made. (Short-circuiting is important to prevent the motor shaft to be loosened. Otherwise, due to the loose motor shaft, cabin will accelerate out of control in the direction of heavy side of the system. )

•This will lead to the speed depending braking torque and the cabin will move with a constant speed in the direction of the heavy side of the system.

•Close the brake in order to stop the system when it is necessary.

•Brake releasing device should be kept in a safe place so that unauthorized person will not be able to reach it.

AKAR takes no responsibility of inappropriate use of brake releasing device.

K-75.04; 31/01/2013; 1/01 Page 27 / 42


6.4.3. Power Failure Operation

In case of a power failure, the Power Failure Operation is used to evacuate the cabin by bringing the cabin in an appropriate floor level when the cabin cannot reach to a floor level in the hoistway. This operation should be supplied with an uninterruptible power supply (UPS) in the control panel.

Power Failure Operation and the other Emergency Operations operate separately and cannot be substitutes for each other.

K-75.04; 31/01/2013; 1/01 Page 28 / 42


7.Faults and Remedy

1

2

3

4

Fault

Electrical leakage at the motor body

Motor is not turning

Motor draws excess current

Rough/Noisy running of the motor

Possible Reason

Grounding is not performed

Brake is not releasing

Wrong connection of phase conductors

Inaccurate micro-switch signal

Brake is not releasing completely

Wrong connection of phase conductors

Incorrect counterweight balancing

Brake is not releasing completely

Incorrect inverter

(VVVF) settings

Remedy

Connect the grounding cable to the motor terminal

Consult the Fault 5

“ Brake is not releasing ”

Check the connection of phase conductors

(U, V, W) in the motor terminal

Check the microswitch settings

Consult the Fault 5


Check the connection of phase conductors

(U, V, W) in the motor terminal

Check the current values from the inverter screen while the cabin is ascending and descending with its 50% nominal load.

These two current values should be close as much as possible.

Consult the Fault 5


Check the inverter

(VVVF) settings

K-75.04; 31/01/2013; 1/01 Page 29/ 42


5

Brake is not releasing

6

Braking cannot be performed

7

Inconsistent braking

8 Noisy braking

Brake supply voltage is low

Brake coil is burnt

Running clearance between the brake plate and brake body is not sufficient (allowed clearance max. 0.6)

There is still voltage on the brake during the braking operation.

Brake supply voltage is low

Inaccurate micro-switch signal

Incorrect inverter

(VVVF) settings

Brake switched on the

DC-side

Running clearance between the brake plate and brake body is not sufficient (allowed clearance max. 0.6)

Supply the required brake voltage as stated on brake label

Get in contact with manufacturer


Check the microswitch settings and power supply

Supply the required brake voltage as it is stated on brake label

Check the microswitch settings

Check the inverter

(VVVF) settings; especially the parameters related to brake closing times.

Check the 5.4

Electromagnetic Brake

Connection of this manual and make the switching from ACside.


K-75.04; 31/01/2013; 1/01 Page 30 / 42


8. Service and Maintenance

8.1. General Information on Maintenance

Service and Maintenance is only to be performed by authorized and trained personnel.

•Observe any unusual noise during the operation and braking.

•Follow the safety instructions at all times.

•In case of emergency operation, consider that the uninterruptible power supply (UPS) may be broken-down.

Therefore, the service personnel should have an additional UPS.

•It is not allowed to adjust electromagnetic brakes. If the running clearance between the brake plate and brake body is reached to its maximum value, please contact with the manufacturer.

Dismounting of the machine is not allowed. Be aware of strong magnetic force!

The bearings used in SMT Series do not require any lubrication.

Please do not try to lubricate the bearings.

8.2. Inspections

Inspection Name

The distance between the rope and rope protection handles

Uninterruptible power supply

(UPS) functionality test

Mounting of screws in housings

Traction sheave control

Brake functionality test

Traction sheave wear

Running clearance between the brake plate and brake body

During Commissioning

Tests

Yes

Yes

Yes

Yes

Yes

-

-

Inspection

Interval

Every 4 months

Monthly

Monthly

Monthly

Monthly

Annually

Annually

K-75.04; 31/01/2013; 1/01 Page 31 / 42


8.3. Spare Parts

8.3.1. Changing Encoder

Please also refer to 5.3. Encoder Connection.

To loosen the encoder;

1.

Loosen the clamping bolt of encoder. Use AA 3mm or AA 4mm hexagon wrench. Take off the small cover from the back of the encoder and remove the cable cover.

2.

Loosen the encoder connection bolt (M5x50mm) within 1-2 complete turns.

Do not try to take off the bolt completely!

3.

Use a bolt (M10x25) as a puller in order to loosen the encoder and press the encoder out of its housing.

4.

Take off the bolt which was used as a puller (M10x25) and use hexagon wrench AA 4mm to loosen encoder connection bolt (M5x50mm) completely. Remove the encoder connection bolt.

5.

Loosen the fixing bolt of the encoder within 3-4 complete turns.

Use AA 2mm hexagon wrench.

6.

Remove the encoder carefully and insert the new encoder to the shaft.

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To fasten the encoder;

1.

Fasten the encoder connection bolt (M4x50mm) by applying max. of 5Nm torque. Use AA 4mm hexagon wrench.

2.

Fasten the fixing bolt of the encoder by applying max. of 1.2Nm torque. Use AA 2mm hexagon wrench. Make sure that the fixing bolt is securely fastened.

3. Insert the encoder cable to its cable cover.

4.

Put on the small cover from the back of the encoder.

5.

Fasten the clamping bolt of encoder by applying max. of 5Nm torque. Use AA 3mm or AA 4mm hexagon wrench.


9.Enclosure

9.1.Motor Terminal Connection Diagrams

Max. 2.5 Volt DC voltages can be applied to PTC . Applying greater voltages may result in PTC damages and the motors will be no longer under warranty.

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9.2.Electromagnetic Brake Connection Diagram

Max. 2.5 Volt DC voltages can be applied to PTC.

Applying greater voltages may result in PTC damages and the motors will be no longer under warranty.

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9.3.Encoder Connection Diagrams


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K-75.04; 31/01/2013; 1/01 Page 39 / 42 K-75.04; 31/01/2013; 1/01 Page 40 / 42


K-75.04; 31/01/2013; 1/01 Page 41 / 42

GEARLESS PERMANENT MAGNET SYNCHRONOUS MOTOR

SMT SERIES

SMT 140AC

SMT 200AC

SMT 225

GEARLESS PERMANENT MAGNET

SYNCHRONOUS MOTOR

Operation and Maintenance Manual

Table of Content

1.General Information

2. Safety Instructions

3. Condition of Product

4. Mechanical Installation

5. Electrical Connection

6. Start-Up

7.Faults and Remedy

8. Service and Maintenance

9.Enclosure

Related documents

Products

Support

GEARLESS PERMANENT MAGNET SYNCHRONOUS MOTOR

SMT SERIES

SMT 140AC

SMT 200AC

SMT 225

GEARLESS PERMANENT MAGNET

SYNCHRONOUS MOTOR

Operation and Maintenance Manual

Table of Content

1.General Information

2. Safety Instructions

3. Condition of Product

4. Mechanical Installation

5. Electrical Connection

6. Start-Up

7.Faults and Remedy

8. Service and Maintenance

9.Enclosure

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