2D20
2D2 0
2D20
2D20
DESIGO™
I/O modules and P-bus
Mounting and installation guide
CM2M8102en
30.07.2002
Siemens Building Technologies
Building Automation
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Mounting and installation guide: DESIGO I/O modules and P-bus
CM2M8102en
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Table of contents
1
Introduction ...................................................................................................5
1.1
Revision history.............................................................................................5
1.2
About this document .....................................................................................5
1.3
Document contents .......................................................................................6
2
Safety notes ..................................................................................................9
2.1
System-specific regulations ..........................................................................9
2.2
Device-specific regulations .........................................................................11
3
I/O module system and accessories ...........................................................13
3.1
I/O modules in the control cabinet...............................................................13
3.2
The I/O module system ...............................................................................14
3.3
I/O modules .................................................................................................15
3.4
I/O module accessories...............................................................................16
4
Control cabinet ............................................................................................19
4.1
Control cabinet requirements ......................................................................19
4.2
EMC compliant control cabinet ...................................................................20
4.3
I/O module and accessories layout .............................................................21
4.4
Allocation and sequence of I/O modules.....................................................22
4.5
Installation positions for module groups ......................................................23
4.6
Overall layout of the control cabinet............................................................24
4.7
Example 1: Control cabinet for HVAC plant ................................................25
4.8
Example 2: Control cabinet for I/O data points ...........................................26
4.9
Example 3: Control cabinet with frequency converters ...............................27
5
Mounting instructions for I/O modules.........................................................29
5.1
Before you start ...........................................................................................29
5.2
Preparing I/O module systems ....................................................................30
5.3
Mounting the I/O module system.................................................................32
5.4
Disassembling the I/O module system ........................................................34
5.5
Shunts and bridges in I/O modules .............................................................35
6
Mounting instructions for I/O compact units ................................................37
6.1
Before you start ...........................................................................................37
6.2
Ways to mount I/O compact units ...............................................................37
6.3
Mounting the I/O compact units ..................................................................38
7
Labelling and addressing equipment ..........................................................41
7.1
Procedures and allocation of labels ............................................................41
7.2
Labelling of I/O bars and terminal blocks ....................................................41
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7.3
I/O module labelling.................................................................................... 41
7.4
I/O module addressing ............................................................................... 43
7.5
Labelling and addressing the I/O compact unit .......................................... 44
8
Wiring ......................................................................................................... 45
8.1
Supplementary information on safety ......................................................... 45
8.2
Notes on EMC optimisation ........................................................................ 47
8.3
Supply and signal lines............................................................................... 49
8.4
Wiring AC 24 V supply lines ....................................................................... 51
8.5
Wiring sample for AC 24 V supply.............................................................. 53
8.6
Standard P-bus wiring ................................................................................ 55
8.7
Remote P-bus............................................................................................. 57
8.8
Connecting field devices............................................................................. 58
9
Inspection and checks ................................................................................ 59
9.1
Placing and mounting equipment ............................................................... 59
9.2
Wiring ......................................................................................................... 59
9.3
Power supply .............................................................................................. 60
9.4
Labelling and addressing............................................................................ 61
9.5
Function check ........................................................................................... 61
9.6
Delivery....................................................................................................... 62
10
Disposal...................................................................................................... 63
11
Appendix..................................................................................................... 65
11.1
Dimensions................................................................................................. 65
11.2
Referenced documents .............................................................................. 69
Feedback form .............................................................................................................. 71
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Table of contents
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1
Introduction
1.1 Revision history
Remarks
The former document "Mounting and Installation handbook for UNIGYR Process Units
and I/O Modules" M8012 has been divided into two separate parts:
• "DESIGO™ I/O modules and P-bus" mounting and installation guide M8102
(this document)
• "UNIGYR process units" mounting and installation guide M8202
Reason
We separated the document for the following reasons:
The I/O modules were developed for UNIGYR and VISONIK process units, but are now
also used in DESIGO. As a result, they are system-independent and can no longer be
part of UNIGYR-specific documentation.
The following items have changed from the previous edition of 25.07.2000:
Changes
Chapter
Pages
"Siemens Building Technologies, Building
Automation" (short form: SBT BAU)
replaces "Landis & Staefa"
throughout the document
various
"Automation station" replaces "process unit"
throughout the document
various
Sensor designation "LG-Ni 1000" instead of
"L&S-Ni 1000"
various
various
1.2 About this document
Main audience
The mounting and installation guide is primarily intended for the following audience:
• Control cabinet builders and factory staff
• Electrical experts
Purpose
The mounting and installation guide provides information for the above persons on:
Expert mounting and wiring of I/O modules, devices/units and accessories in the
control cabinet, and connections to the plant.
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Note
The mounting instructions for I/O compact units are also part of this user's guide: they
are available in chapter 6 "
Mounting instructions for I/O compact units". Due to the device and market-specific
features of the I/O compact units, this chapter only provides mounting instructions
which are delivered together with the units. Further engineering information is available
in the respective data sheets on I/O compact units.
Further application
The mounting and installation guide can also be used by project engineering staff of
SBT BAU and by system houses for the following topics:
Defining the control cabinet size
Integration variants for devices
Regulations and notes (e.g., safety, EMC-compliant control cabinet, EMC optimisation)
Restrictions
The mounting and installation guide contains all documentation in text and graphics
required for the above audiences and purposes.
It does not contain information on plant-specific mounting and wiring tasks. This type of
information is available in the respective project documentation.
Referenced documents
Chapter 11 "Appendix" contains a list of documents on the I/O module system providing
detailed information on engineering.
Note
In this document, reference numbers for documents are always printed in an
abbreviated form. The complete numbers (e.g., CM2M8202en) are available in section
11.2 "Referenced documents".
1.3 Document contents
A building automation and control system by Siemens Building Technologies, Building
Automation (SBT BAU) typically comprises the following hardware ranges distributed
over three levels:
• DESIGO Insight management station
• Control cabinet (described in this document)
• Building services plants
8102Z40E
Overview
Management level
DESIGO Insight
Building Level Network
Control cabinet
Automation level
Process units
I/O modules
P-bus
Wiring to periphery
NIDES.RX
LON
Field level
T
A ut o
T
Building
services
plants
DESIGO RX
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Individual ranges
The above described ranges can be described in brief as follows:
Range
Brief description
Management
station
The DESIGO Insight management station allows the operator to
run and monitor all building services plants within the associated
building automation and control system.
Control
cabinet
The following devices are integrated in the control cabinet:
Automation stations, e.g., for UNIGYR
I/O modules, connected via P-bus (process bus)
This document describes expert mounting and wiring of I/O
modules in the control cabinet.
Building
services plants
These are the connected plants such as heating, ventilating and air
conditioning plants, electrical systems, etc.
Linking of system levels
The following connections generally lead from and to the control cabinet:
Automation level to
management level
Building Level Network (BLN):
A bus line that connects the automation stations with each other and with the
management station.
Automation level to field
level
Floor Level Network (FLN):
The FLN bus establishes the following connections between:
– FLN master units (e.g., PRU10.64) and FLN slave units (e.g., RWP80)
– FLN slave units and end units (e.g., Terminal Equipment Controller)
P-bus:
A bus line leads to the I/O modules or to the I/O compact unit. They are wired directly to
the field devices (sensors, actuating valves, motors, etc.) in the building services plants.
Local Operating Network (LON):
A bus line leads from the NIDES.RX interface to the units of the DESIGO™RX product
range.
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2
Please observe the
following notes
Safety note
General regulations
Safety notes
This chapter explains general and system-specific regulations. It also contains
important information regarding your own safety and that of your plant.
The warning triangle to the left means that you must observe all respectively listed
regulations and notes. If ignored, injuries and equipment damages may result.
Observe the following general regulations during engineering and project execution:
• Electric and high-power regulations of the respective country
• Other required country regulations
• House installation regulations of the respective country
• Regulations by the energy supplier
• Diagrams, cable lists, dispositions, specifications and instructions as per the
customer or the engineering business
• Third-party regulations from, e.g., the general contractors or building contractors
2.1 System-specific regulations
Safety
Electrical safety in SBT building automation and control systems primarily depends on
extra-low voltage with safe isolation from mains voltage.
SELV, PELV
Depending on the earthing of extra-low voltage, SELV or PELV applications as per
HD384 "Electrical plants in buildings" result:
Unearthed = Safety Extra-Low Voltage SELV
Earthed
= Protection by Extra-Low Voltage PELV
Unit safety
Safety for the units is ensured by (among other aspects)
– Supply of AC 24 V extra-low voltage as per SELV or PELV
– Double isolation between AC 230 V mains voltage and SELV/PELV circuits
– Microfuse in the module supply block
– Primary fuses of the I/O bars
Please note the specific regulations on electric wiring of the I/O module groups as per
the following sections.
Earthing of
G0 (system neutral)
Recommendation on
earthing G0
Observe the following for grounding G0:
• As a rule, earthing as well as non-earthing of G0 is permissible for AC 24 V
operating voltage. However, observe all local regulations and customary procedures
• Earthing may be required or illegal for functional reasons.
• Earth all AC 24 V systems unless otherwise specified by the respective
manufacturers
• To avoid earth loops, connect systems with PELV to the earth at only one point in
the system, normally at the transformer, unless otherwise specified
• You can also prevent earth loops through connected PC interfaces (PC tools) via
electrical isolation
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Mains and operating
voltage
The following regulations apply to mains and operating voltages:
Topic
Regulation
AC 24 V operating
voltage
The operating voltage must comply with the requirements for
SELV or PELV. Permissible deviation of AC 24 V reference
voltage at the I/O modules: +/- 20 %
• Safety transformers as per EN 61558, with double isolation,
designed for 100 % runtime to supply SELV or PELV circuits
• The capacity used from the transformer should at least
amount to 50 % of the nominal load for efficiency reasons
(power efficiency)
• The nominal capacity of the transformer must be at least
25 VA. For smaller transformers, the ratio between voltage at
idle time to voltage at full load is unsatisfactory (> + 20 %)
Specification on
AC 24 V
transformers
Fuse of AC 24 V
operating voltage
Transformers, secondary side: according to the effective load of
all connected devices as per the transformer sizing:
– Line G (system potential) must always be fused
– Where required, additional line G0 (system neutral).
Important: The 10 A microfuses for G and G0 to protect
the I/O bar in the module supply block do not replace this loaddependent primary fuse!
Fuse of AC 230 V
mains voltage
• Transformers, primary side:
Control cabinet fuse (control fuse)
• Mains voltage supplied to the I/O bars must be fused by max.
10 A before the phase supply blocks
Observe third-party
voltages
Introduction of dangerous voltages to the extra-low-voltage system circuits–e.g.,
through faulty wiring or formation of vagabond voltages at the I/O modules–poses an
immediate danger to persons and may result in partial or complete destruction of the
building automation and control system!
Lightning protection
measures
Adhere to local regulations on lightning protection and equipotential bonding.
Information on external protective measures and protective components is available in
the “UNIGYR System Manual” CM2Z8021.
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2.2 Device-specific regulations
Safety notes for
engineering
I/O modules
If you are responsible for engineering the entire control cabinet, make sure that you
have all of the documents listed below. Observe all respective engineering notes and
safety regulations.
Document
Document No.
I/O module summary
N8100
Technical basics:
I/O module system
Z8102
I/O module system
accessories
N8105
The following regulations apply to I/O modules:
Topic
Regulation
Double-modules for
mains voltage or
extra-low voltage
For safety reasons, connect only mains voltage or extralow voltage to the same I/O module in double modules with
inputs or outputs for mains and extra-low voltage. This applies
to:
– Various switching modules (PTM1..Q250..)
– Signalling module with voltage inputs (PTM1.2D250)
Signalling contacts
Connect only potential-free, mechanical contacts to the inputs
of a signalling module.
Exception: Signalling module with voltage inputs.
Manual switch
Do not use the manual switch on the switching and
positioning modules for safety shutdown, e.g., during service
and maintenance procedures.
Field devices connections at I/O modules
Devices with differing
voltage circuits
The devices must have the required isolation of voltage circuits in order to be
connected without additional isolation (see "Principal display: I/O modules and
peripherals").
Interfaces for different
voltage circuits
Connections via the interfaces may lead to distribution of dangerous voltages
throughout the building. For these cases, make sure that the required isolation exists
and that you have observed all associated installation regulations.
Field devices and
interfaces
The following applies to field devices and interfaces with extra-low voltage:
Topic
Regulation
Field devices on
I/O modules
Field devices such as sensors, signalling contacts, actuators,
etc. that are connected to extra-low voltage inputs and
outputs of I/O modules must comply with the requirements as
per SELV or PELV.
Interfaces for extralow voltage
Interfaces of peripheral devices and other systems must also
comply with SELV or PELV
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Principal display: I/O
modules and field devices
AC 24 V
G
G0
P-bus
PC
PU
PD
L
N AC 230 V
I/O modules
for mains AC 230 V
and/or mixed
SELV/PELV
8102Z39E
B
SELV/PELV
B
Mains AC
230 V
Mains AC
230 V
C
Relay Q....
Mains AC 230 V
A
SELV / PELV
SELV/PELV
Mains AC
230 V
Mains AC 230 V
SELV/
PELV
Mains AC 230 V
D
A
SELV / PELV
SELV/PELV
SELV/
PELV
Mains AC
230 V
Mains AC 230 V
D
I/O modules
only for SELV/PELV
B
I/O bar PTX1...
Legend
The above designations are:
A
B
C
D
Field devices only with SELV/PELV circuits
Field devices with mains and SELV/PELV circuits
Field devices only with mains circuits
Double or increased isolation as per EN 60 730, proof voltage AC 3750 V
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3
I/O module system and accessories
3.1 I/O modules in the control cabinet
Purpose of this chapter
The following pages provide an overview of the I/O modules for control cabinet
integration and make you familiar with the most important properties of these devices.
Simple example
The illustration below shows a diagram of I/O modules in the control cabinet, their
connections to the automation station and the respective internal and external
elements:
Control panel
Building Process Station
SW-Version
Zeit
Datum
S
N
P-bus
T1
U1
P-bus
M1
M2
M3
8102Z41E
U2
p
p
Legend
The designations in the above illustration are:
N
T1
U1
U2
P-bus
M1
M2, M3
Task of I/O modules
Automation station with P-bus connection
AC 230 V / AC 24 V transformer
I/O module group with internal connections to the devices in the control cabinet
I/O module group with external connections to field devices
Process bus for data communication between the automation station and the I/O modules
Heating coil pump
Supply air fan, extract air fan
I/O modules are used as signal converters. They represent the interface between the
automation station and the respective devices in the building services plants. The plugin bases of the I/O modules serve as the connecting terminals for plant wiring. They
additionally are used for terminal disconnection; separate terminal blocks are
superfluous.
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3.2 The I/O module system
Example for a module
group
The following illustration shows a complete module group consisting of four I/O
modules:
Parts of the module
system
The individual parts of the I/O module system are:
Pos.
Designation
1
2
3
4
5
I/O bar PTX1… with end cover PTX1.080
Standard rail (not Siemens accessory)
Phase supply block PTX1.00
I/O modules PTM1...
Module supply block PTX1.01
Address plug PTG1…
6
I/O module range
The I/O module range includes modules for all basic functions of building automation
and control. The I/O modules process the uniform signals of a automation station and
convert them to the various signals for the plant components and vice versa. A colour
coding system at the module front helps differentiate the modules by their basic
functions:
Basic Function
Colour
Example
SIGNALLING
White
Signalling contact, continuous signal (normally
open contact/normally closed contact)
MEASURING
Blue
Sensor such as LG-Ni1000
SWITCHING
Green
Relay output, continuous command, monostable
POSITIONING
Yellow
Positioning signal DC 0… 10 V continuous,
three-position signal
COUNTING
Brown
Counting pulse transmitter, for electric and gas
demand
Depending on the type of module, there are single, two-fold, four-fold, or eight-fold
modules in the same housing. Refer to document 8100E "I/O module summary" for a
listing of all modules.
I/O compact units
The I/O compact units include functions for signalling, measuring, switching, and
positioning of the building automation and control technology in a single housing. Refer
to data sheets 181E, N8182 and to the mounting instructions M8181 for further
information.
Standard rails
The following standard rails can be used as part of the I/O module system:
– Top-hat rail (DIN rail) EN50022-35 x 7.5
– G-rail EN50035-G32
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3.3 I/O modules
I/O modules PTM1…
The illustrations below show a single I/O module with accessories, snapped onto the
rail and the I/O bar, and a stand-alone I/O module:
I/O module parts
The main mechanical parts of the I/O modules are:
Pos.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Designation
Module housing (function part of the I/O module)
Terminal base (connection part of the I/O module)
I/O bar
Standard rail
Transparent module front (labelling)
Colour bar for module type labelling
Display and operating elements field
Labelling plate
Address plug
Plug connection between module housing and I/O bar for P-bus, module supply and AC 24 V
system supply
Plug connection between module housing and I/O bar for phase conductor and neutral conductor
(mains voltage)
Plug contacts between module housing and terminal base
Mechanical coding between module housing and terminal base
Terminal screws
Terminal test sockets
Address plate
Terminal labelling plate with holder
Pluggable, labelled plate (terminal labelling variant)
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Mechanical properties
Electrical properties
Primary mechanical properties of the I/O modules:
Properties
Explanation/Use
Snap-on holders connect the terminal
base and the module housing
Both parts can be inserted and removed
without additional tools
Mechanical coding between terminal
base and module housing according to
the module function
Prevents insertion of non-matching parts
and thus, for example, destruction
through mains voltage applied to the
base
Signal pick-off via contact springs on the
conductor rails of the I/O bar
P-bus signals and AC 24 V on top, mains
voltage at the bottom of the I/O bar
Connecting terminals in the terminal base
simultaneously assume the function of
control cabinet terminal blocks
No additional terminal block required for
connected field devices
Terminal isolation
Achieved by swinging the module
housing into a position of rest
Refer to chapter 8, "Wiring", for information on electrical properties.
3.4 I/O module accessories
The I/O bars accommodate the I/O modules and establish mechanical and electrical
connections to the modules. The conductor rails in the I/O bars run the signals for:
• Three-pole process bus (P-bus)
• AC 24 V operating voltage
• Max. 250 V AC mains voltage
Four standard lengths
The following table provides information on both I/O bar standard length and maximum
number of I/O modules that can be accommodated.
8017Z11
I/O bars PTX1...
Type
Length *)
I/O
modules
PTX1.3
389 mm
10
PTX1.5
517 mm
14
PTX1.6
645 mm
18
PTX1.8
901 mm
26
*) Linear dimension including end covers of ca. 2 x 2.5 mm
The bars can be shortened at increments of 32 mm by using a metal saw. On the upper
side, the conductor rails are covered with protective foil; remove the foil after only
mounting procedures are complete.
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End covers PTX1.080
The end covers serve the following purpose:
• Mechanical end of the I/O bar
• Protection from accidental contact with the conductor rails
The I/O bars are supplied with installed end covers.
The end covers can be ordered separately for the following cases:
– When a longer bar is separated into several sections
– As spare parts
The following illustration shows the end cover and how it is installed:
Module supply block
PTX1.01
The module supply block supplies voltage to the I/O modules.
Phase supply block
PTX1.00
Neutral supply block
PTX1.02
These two terminal blocks connect the mains voltage (max. 250 V AC) or the neutral
conductor to the I/O bar.
Address plug PTG1…
Address plugs are used to address the I/O modules. They are delivered in sets of 16
plugs each. The following sets are used (module addresses 1 ... 255):
The module supply block runs the following signals to the I/O
bar:
• Process bus (P-bus)
• AC 24 V operating voltage
The block has two integrated 10 A microfuses as a short-circuit
protection for AC 24 V operating voltage.
It also serves as a connection between two I/O bars
(section 3.4).
The two units differ as follows:
• PTX1.00 is used to connect the phase conductor
• PTX1.02 is used to connect the neutral conductor, where
required
Mechanically, the phase supply and neutral supply blocks are
identical.
Plug
Addr. No.
Plug
Addr. No.
PTG1.16
PTG1.32
PTG1.64
PTG1.96
PTG1.112
1
1
33
65
97
PTG1.128
PTG1.160
PTG1.192
PTG1.224
PTG1.255
97
129
161
193
225
... 16
... 32
... 64
... 96
... 112
...
...
...
…
…
128
160
192
224
255
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Blank labels PTP1.10
The blank labels are used for plant-specific labelling of I/O modules.
One sheet (A4) suffices for 8 modules. It provides tearoff designation labels for the module front and the
connecting terminals.
Normally, these sheets are pre-printed when delivered
to the control cabinet builder.
Labelling occurs plant-specifically via the engineering
system at SBT BAU.
Terminal label holder
PTX1.070
The snap-on holder is used to attach the terminal designation labels at the I/O module.
The illustration shows a holder (left) and a partially
inserted label (right).
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4
Topics in this chapter
Control cabinet
This chapter contains information on the following topics:
• Control cabinet requirements
• EMC compliant control cabinet
• I/O module and accessories layout
• Allocation and sequence of I/O modules
• Installation positions for module groups
• Overall control cabinet layout with samples
4.1 Control cabinet requirements
Requirements
The table below contains information on general control cabinet requirements: Please
ensure that the individual requirements have been met.
Step
Requirements
Mechanical
design
Construction, stability and sealing of the control cabinet
comply with the relative regulations applicable at the
plant location
Ambient
conditions
For the devices, adhere to the permissible values as
indicated in section "Technical data" of the respective
data sheets:
• Temperature, humidity, vibrations
• Protection class and degree of protection for devices
OK
Important: These regulations apply to the plant location!
EMC compliant
control cabinet
Mechanical dimensions
The regulations described in section 4.2 correspond to an
EMC compliant control cabinet.
To determine the control cabinet dimensions, use:
• The information on layout options in this chapter
• The dimension diagrams for the devices in chapter 11 "Appendix".
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4.2 EMC compliant control cabinet
Introduction
One of the purposes of a control cabinet lies in reducing electromagnetic interference.
Interference depends on the internal and/or external EMC interference of the control
cabinet.
Internal EMC interference may be a power inverter within the same control cabinet;
external EMC interference may be a nearby radio station.
Control cabinets represent the reference point for screening cables and housings. They
are tasked with decoupling interferences and short-circuiting interference voltages.
General regulations
The following regulations generally apply to EMC conformant control cabinets:
Mechanical setup of the
control cabinet
•
•
•
•
Equipment allocation
When designing the control cabinet, high-interference equipment must be segregated
from potentially interference-susceptible equipment. As a result, be particularly careful
with connections between these two types of equipment:
• Use separate control cabinets for high-interference equipment and potentially
interference-susceptible equipment.
• Place high-interference equipment outside the control cabinet. When doing so,
ensure that you do no infringe on safety specifications for the equipment.
• Separate the equipment groups inside the control cabinet by using metal shielding.
Screening
• Lay the cable screens at the entry point on the metallic structure of the control
cabinet and connect them to the building's equipotential bonding.
• To do this, use the screen connection clamps and the locations specifically reserved
for this purpose in the control cabinet (see section 8.2 "Notes on EMC optimisation").
CE labelling not required
for control cabinets
All equipment by SBT BAU complies with EMC regulations and the EMC standards as
listed in the data sheets.
A control cabinet (without independent function) is a part of a fixed installation and
intended for the connection of further parts. The guideline of the European Commission
on the application of the Council Directive 89/336/EEC on EMC describes exceptions to
CE labelling. Even though the EMC guideline also applies to fixed installations,
metrological proof and CE labelling is not required.
Do not paint the interior walls
Mounting plates and rails must be electrically conductive and must not be painted
Attach screw fittings directly to unpainted parts of the control cabinet
Create ground connections with the doors by means of flat copper bands (possibly in
addition to the normal protective earth connection)
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4.3 I/O module and accessories layout
Forming groups
The I/O modules are arranged on the I/O bars and summarised in groups together with
the following devices:
• Module supply block PTX1.01
• Phase supply block PTX1.00
• Neutral supply block PTX1.02 (where needed)
The groups are then snapped and fastened to the standard rails in the mounting frames
of the control cabinet.
Simple group
This illustration shows a simple group with phase and module supply blocks:
PTX1.00
PTX1.01
EN50022-35x7,5
8017Z12
The phase or module supply block can be located to the right or left. A possible neutral
supply block PTX1.02 is then fitted next to the phase supply block PTX1.00.
Linked groups
Two I/O bars can be mounted next to each other and the transition points to the module
supply block PTX1.01 can be linked mechanically and electrically:
PTX1.01
8017Z13
PTX1.00
EN50022-35x7,5
The conductor rails for mains voltage L and N are not connected. They must be fed
through separate phase supply blocks or neutral supply blocks.
Space requirements
The space requirements for each fitted I/O bar in the control cabinet can be determined
as follows:
Number of modules x 32 mm + 32 mm + 16 mm + (16 mm *)
* if neutral terminal block is used
The supply terminal block (32 mm) and the phase terminal block (16 mm) are always
required. They serve as a mechanical connection between the I/O bar and the standard
rail.
Observe spacing!
Reserve sufficient space for connecting the devices as well as swinging them in and
out (see dimensions, section 11.1 "Dimensions").
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4.4 Allocation and sequence of I/O modules
Introduction
This chapter provides information on:
– Allocation of I/O modules to groups on various I/O bars
– Sequence of I/O modules on I/O bars
Module allocation
In order to allocate an I/O module to groups on different I/O bars, the following
allocation is suitable:
I/O module group with ...
Example
Internal control cabinet
connections
Connections to contactors for motor control
External control cabinet
connections
Direct wiring to field devices such as sensors,
transmitters, actuating devices, etc.
Further criteria for allocation of I/O modules on several I/O bars:
– Number of I/O modules
– Standard length of I/O bars
– Control cabinet layout
– Cable entries to the control cabinet
Module sequence
Allocation of I/O modules on I/O bars normally follows the sequence of the module
addresses.
Variants are:
• Sequence according to voltage types:
– AC 230 V mains voltage
– AC 24 V extra-low voltage
• Plant-specific sequence:
For example: According to the series of functions of the individual control loops (I/O
modules for sensors, transmitters, and actuating devices together for each control
loop)
• Sequence according to module types:
For example: All signalling, measuring, counting, switching, and positioning modules
in groups
Further criteria on allocation:
Country-specific regulations and own working practices
Note
If the building automation and control system is designed using a PC software program
of SBT BAU (e.g., UNIGYR Design), the module sequence and addressing can be
entered via the tool.
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4.5 Installation positions for module groups
Horizontal installation
In the following two examples, the module groups are installed horizontally, with
terminals and connections pointing upward or downward:
Connections upward
Connections downward
8017Z14
230V~ 24V~
230V~ 24V~
8017Z15
Vertical installation
The following, slightly bigger control cabinet has vertically mounted module groups
with:
• Cable entries to the side and
• Feeding up or feeding down
230V~ 24V~
8102Z34
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4.6 Overall layout of the control cabinet
General layout
The following illustration shows a simple control cabinet as a general example for
meaningful allocation of module groups and devices.
Control cabinet
Door
230V~ 24V~
8102Z35
Assembly in the control
cabinet
In this sample control cabinet, the module groups have been arranged as follows:
Position
Control cabinet
Top
Centre
Bottom
Assembly
Left
Terminals for power sections:
Supply feed, outputs to motors, etc.
Right
I/O module group with direct AC 230/24 V connections to field
devices (control)
Left
Isolating and fuse components
Right
I/O module group with direct AC 230/24 V connections to
internal control cabinet devices (contactor, etc.)
Left
Mains voltage range with relay and contactor
Right
AC 230/24 V transformer for control section
Door
Door
Note on space
requirements for module
wiring
Note the following points to ensure accessibility:
• Keep the minimum distance for wiring and swinging range of units between the I/O
modules and the neighbouring cable ducts (see dimensions in chapter 9)
• The distance between two cable ducts must be at least 175 mm if I/O modules are
mounted between them
• All connecting terminals must be available for easy connection and tests
Examples
The next few pages provide layout samples for various applications.
Automation station
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4.7 Example 1: Control cabinet for HVAC plant
Brief description
The illustration below shows the layout for a control cabinet containing all control and
regulation parts for an HVAC plant:
• The I/O module groups are mounted horizontally in three rows
• The associated automation station is installed in the door
1
2
3
4
5
6
7
8
9
8017Z21
The most important parts
The above labelled parts of the control cabinet are:
Pos.
1
2
3
4
5
6
7
8
9
Designation
Rail for cable attachment
Terminal row
Cable ducts
I/O module groups
Mounting profile/mounting frame
SBT BAU devices
Time relay
Contactor
AC 230/24 V transformers
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4.8 Example 2: Control cabinet for I/O data points
Brief description
The following illustration shows a control cabinet for I/O data points:
The I/O module groups are installed vertically. This allows for accommodating a large
number of I/O modules by applying easy and transparent wiring.
1
2
3
4
5
8102Z36
The most important parts
The above labelled parts of the control cabinet are:
Pos.
1
2
3
4
5
Designation
Rail for cable attachment
Cable ducts for cable runs
I/O module groups
Wiring ducts
Mounting profile/mounting frame
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4.9 Example 3: Control cabinet with frequency
converters
Brief description
The following illustration shows two fields of a larger control cabinet combination:
• The left contains a field with two frequency converters
• The right shows one of the fields for control devices with vertically arranged I/O
module groups
1
2
2
3
3
4
5
8102Z37
6
The most important parts
The above labelled parts of the control cabinet are:
Pos.
1
2
3
4
5
6
Designation
Cable ducts for cable runs
Terminal rows
Wiring ducts
Automation station
I/O module groups
Frequency converters
Allocation of all other devices such as SBT BAU devices, time relay, contactor, and
transformers is largely identical to example 1.
Engineering
Discuss all aspects with regard to frequency converters with the responsible expert
(electrical engineering). This applies to aspects such as:
– Device location either in the same or in separate control cabinet fields (with metal
shielding)
– Manual or automatic mains bypass
– Regulations/measures with regard to feed, fusing, protection against interference,
etc.
Note
Please refer to the regulations and instructions as described in sections 4.2 "EMC
compliant control cabinet" and 8.2 "Notes on EMC optimisation".
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5
Mounting instructions for I/O modules
5.1 Before you start
Important
documents
Important!
Checklist:
Mandatory information
The following documents are important for integrating the devices in the control cabinet:
1.
This mounting and installation guide
It contains general rules and instructions on allocation and mounting I/O modules
and devices in the control cabinet.
2.
Project-specific documents
These include electrical diagrams for wiring as well as detailed device allocation
illustrations for the control cabinet.
Project-specific documentation must not oppose the basic rules and instructions of this
manual.
The project-specific documentation must contain the following information on the
control cabinet.
Topic
Is there an answer to this question in the
documentation?
OK
Wire arrangements
Where in the control cabinet are the wire arrangements
from and to the field devices:
At the top, at the bottom, or at both top and bottom?
Mounting position
of I/O modules
How will the I/O modules be mounted:
– Horizontally,
with terminals facing up or down?
– Vertically,
with terminals facing right or left?
Distribution on I/O
bars
Are the I/O bars distributed in groups as follows:
– I/O modules that are to be wired internally in the
control cabinet?
– I/O modules that are to be wired externally to the
field devices and thus serve as terminal blocks?
Sequence of I/O
modules
Prior to mounting
Does the electrical diagram show the sequence in
which the I/O modules are to be arranged?
Please refer to the notes and regulations in the following sections:
– Section 4.3 "I/O module and accessories layout"
– Section 11.1 "Dimensions" (special emphasis on space requirements)
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5.2 Preparing I/O module systems
Brief description
Preparations include:
– Mounting standard rails
– Shortening the I/O bars to the required length
– Removing the protective foil from the I/O bars
Instructions
Conduct the preparatory work by following these steps:
Step
Important!
Action
1
Mount the standard rails as per the control cabinet layout drawings; use either top-hat rails
or G-rails.
2
If necessary: Shorten the I/O bars to the required length. This can be made in sections of
32 mm.
Refit the end covers after concluding your work (protection against accidental contact).
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Instructions
Step
3
Important!
Action
Remove the protective foil from the I/O bars only when required. This is the case for:
• Strip A: Prior to plugging in the terminal base
• Strip B: Prior to inserting the module housing
Leave the protective foil on the unused parts of the I/O bars to protect against dust.
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5.3 Mounting the I/O module system
Brief description
Begin by mounting the I/O bar with module supply and phase supply block.
Proceed by inserting the I/O modules in sequence.
Instructions
Mount the I/O module groups as per the following steps:
Step
Action
1
Plug in the module supply block PTX1.01 and the phase supply block PTX1.00 on the I/O
bar.
2
Snap the I/O bar with the module supply block and the phase supply block onto the
standard rail.
3
Mark the positions for drill holes for the I/O bar.
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Instructions
Step
Action
4
Drill holes for max. 4 mm screws (outer thread)
5
Tighten the screws in the following sequence:
1. Clamping screws on the module supply and phase supply block
2. Screws for holding the I/O bar
6
Insert the I/O modules in sequence
1. The terminal base first
2. Then the module housing
Note: Module and terminal base can be fitted together and then plugged into the I/O bar.
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5.4 Disassembling the I/O module system
Introduction
The following sections show how to remove I/O modules, module supply blocks and
phase supply or neutral supply blocks.
Remove I/O modules
Proceed as follows to remove an I/O module:
Remove module supply
blocks
A. Remove module housing
B. Remove terminal base
1. Press the release catch
2. Swing out the housing
1. Press the snap-on clip.
2. Swing out the base
Remove a module supply block by conducting the following three steps:
Picture module supply block
Steps
1. Loosen the clamping screw
2. Simultaneously press all three release catches
3. Swing out the module supply block
Remove phase supply or
neutral supply blocks
Remove a phase supply or neutral supply block by conducting the following three steps:
Picture phase supply block
Steps
1. Loosen the clamping screw
2. Press both release catches
3. Swing out the terminal block
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5.5 Shunts and bridges in I/O modules
Introduction
Some I/O module types have shunts or bridges for setting the operating variants. This
section provides the corresponding instructions.
Change shunt on
measured value module
PTM1.2I25
The measurement module for current signals has shunts to select the measuring range.
The factory setting is for a range of 0 ... 20 mA. The following illustrations show how
this shunt can be exchanged to set a different measuring range.
A. Remove existing shunt
B. Insert new shunt
1. Open the module housing
2. Pull out shunt 020
3. Plug in the shunt for the new measuring range
4. Close the module housing
List of shunts
PTR1...
These are the shunts for measuring module PTM1.2I25 (sets at 10 pieces):
PTR1.105
1 ... 5 mA
PTR1.010
0 ... 10 mA
PTR1.020
0 ... 20 mA
PTR1.025
0 ... 25 mA
Remove bridge for
switching and
positioning modules
For the following module types, removal of the bridge defines the path in which the
switching voltage is fed. Refer to the plant wiring diagram for information.
For PTM1…Q250…
For PTM1.3Q-M3 and 2Y250T
Remove this bridge if the switching voltage is
not to be supplied via the I/O bar, but instead
via the terminal base.
Remove this bridge if switching voltage is to be
supplied externally.
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6
Mounting instructions for I/O compact
units
6.1 Before you start
Important
documents
Important!
The following documents are important for integrating I/O compact units in the control
cabinet:
1. Data sheets for both I/O compact units
PTK1.30V01
N8181
PTK1.23V02
N8182
These data sheets contain detailed technical information including diagrams,
engineering, mounting, and commissioning instructions
2. This mounting and installation guide
3. Project-specific documents
These include electrical diagrams for wiring as well as detailed device allocation
illustrations for the control cabinet.
Project-specific documentation must not oppose the basic rules and instructions of this
manual and of the data sheets.
6.2 Ways to mount I/O compact units
There are four ways to mount the I/O compact unit.
B. Attachment using mounting
brackets on top-hat rail
8181Z05
A. Attachment using mounting
brackets
8181Z06
Different types for
mounting
Attachment by using mounting brackets on
previously mounted top-hat rails (EN 5002235x7.5) without I/O bars
C. Attachment using mounting
brackets on leftward extension
through I/O modules
D. Attachment on I/O bar and top-hat
rail on rightward extension through
I/O modules
On leftward extension of I/O compact units
through I/O modules:
Attachment by using mounting brackets and a
piece of I/O bar and top-hat rail for electrical
connection and mechanical attachment of the
I/O modules.
Note
8181Z04
8181Z03
Attachment by using mounting brackets and
without I/O bars
On rightward extension of I/O compact units
through I/O modules:
Attachment on full I/O bar and full top-hat rail,
without mounting brackets.
You can mount several I/O compact units above each other on separate I/O bars and
top-hat rails. The device dimensions are available section 11.1 "Dimensions".
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6.3 Mounting the I/O compact units
This section provides step-by-step mounting instructions for each of the above four
types of mounting the I/O compact units.
Note
The last two illustrations show how to remove the terminal blocks and how to
disassemble the unit.
Procedures for
mounting type A
Wall mounting by using mounting brackets
1.
2.
1
3
8181J22
8181J21
2
4
– Drill the holes into the wall as shown in the
Remove the mounting brackets (steps 1...3)
illustration.
– Attach the mounting brackets on the wall
(step 4)
3.
5
6
8181J23
5
Attach the I/O compact unit (steps
5 and 6)
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Procedures for
mounting type B
Attachment using the mounting brackets on a previously mounted top-hat rail
1.
2.
1
2
3
4
8181J24
3
8181J25
– Attach the mounting bracket to the
previously mounted top-hat rail (step 1).
– Drill holes for max. 4 mm dia. threaded
screws
Attach the I/O compact unit (steps 3 and 4)
– Attach the mounting brackets on the wall
(step 2).
Procedures for
mounting type C
Attachment using mounting brackets on leftward extension through I/O modules
2.
8181J26
8181J27
1.
2
15-30
°
1
2
3
– Drill holes for max. 4 mm dia. threaded
screws for I/O bar and top-hat rail
– Mount the I/O module bar and top-hat rail
as shown in the illustration (step 1)
Attach the I/O compact unit (steps 2 and 3)
3.
8181J28
5
4
Insert the I/O modules in sequence:
– The terminal base (step 4)
– The I/O module (step 5)
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Procedures for
mounting type D
Attachment on I/O bar and top-hat rail on rightward extension through I/O
modules
2.
8181J29
8181J30
1.
2
15°
3
2
1
– Drill holes for max. 4 mm dia. threaded
screws for I/O bar and top-hat rail
– Mount the I/O module bar and top-hat rail
as shown in the illustration (step 1)
Attach the I/O compact unit (steps 2 and 3)
8181J31
3.
5
4
Insert the I/O modules in sequence:
– The terminal base (step 4)
– The I/O module (step 5)
Remove terminal blocks
Disassemble the I/O compact unit
1
8181J33
Remove terminal blocks,
disassemble the I/O
compact unit
8181J32
1
1
2
2
For device exchange or measurements on
open lines, each terminal block can
separately be inserted and removed as
shown in the illustration.
For disassembly, press both brackets (step 1). The
device is now ready for removal (step 2).
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7
Labelling and addressing equipment
7.1 Procedures and allocation of labels
Differing procedures
Documentation for proper
allocation
Depending on the project and logistics, labels are either
• delivered with the devices to be mounted, or
• inserted at the plant location on commissioning.
Proper allocation of device labels is available in the following project documents:
– Module list
– Plant wiring diagram
– Control cabinet layout
This chapter will show you where and how the labels are attached to the devices.
7.2 Labelling of I/O bars and terminal blocks
I/O bar
The individual I/O bars (or module groups) are labelled in the front terminal field of the
associated module supply block, e.g., by X1, X2, X3, etc.
Module supply block
The connections for the supply terminal block PTX1.01 can be labelled identical to
those of the module terminal base; refer to "I/O module labelling" later in this chapter.
Phase supply and neutral
supply block
The labelling plates "dekafix 6.5" by company Weidmüller can be plugged into the
terminal body and in the connecting terminal; refer to "I/O module labelling" below.
7.3 I/O module labelling
Label positions
For unambiguous identification of each I/O module and its associated connections, the
associated information is available at the following positions:
Position
Information
Housing top
Type plate and connecting diagram (factory)
Module front
• Module type and symbols for display and operating
elements
• Plug-in front plate, can be labelled as required
Terminal base
Terminal designations and plates with address number of the
I/O module address plug (at extra fee)
Address plug
Address numbers from 1 ... 255
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Front labels
The slide-in front labels for the I/O modules can be labelled as required. If a plant is
engineered at SBT BAU, engineering tools are used to create the front labels. In this
case, the PTP1.10 labels sheets are printed automatically with the respective module
designation.
The front labels then contain the address and allocation of each individual module or
module group for a automation station.
Positioning according to
mounting position
The front labels are inserted from below or sideways into the transparent front. The
illustrations below show insertion of front labels and terminal labels for various
mounting positions of the I/O modules. Make sure that the address number on the front
label matches that on the address plug!
Vertically mounted module
Horizontally mounted module
A
B
C
D
Terminal connections at bottom
Terminal connections on top
Terminal connections to the right
Terminal connections to the left
Connecting terminals
If external connections to the control cabinet lead directly to the connecting terminals of
the I/O modules, they normally have a plant-specific label in addition to the device label
(e.g., by continuous numbers).
Two options
If such labelling is intended as per the plant wiring diagram, there are two options:
• On paper strips which are inserted into the transparent terminal label holder (holder
PTX1.070, can be ordered as an accessory). These strips can be torn off the same
labelling sheet as the front labels. The strips can be labelled manually or by machine.
• Using slide-in, printed labelling plates such as "dekafix 6.5" by company Weidmüller.
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Inserting front and
terminal labels
This illustration shows how to tear off the front and terminal labels from the PTP1.10
sheet and how and where to attach them on the I/O module.
Variant for terminal
labelling
This illustration shows a variant for terminal labelling with slide-in labelling plates such
as "dekafix 6.5" by company Weidmüller.
7.4 I/O module addressing
Introduction
In order for a automation station to identify and communicate with a specific I/O
module, each I/O module must have its own address. This module address is defined
by an address plug on the I/O module.
Addressing information
Module addressing follows the addressing concept as designed by SBT BAU. The
following points are important for control cabinet layout:
• The address range for I/O modules with connection to a automation station
comprises addresses 1 to 255
• The valid assignment of addresses to the respective job is available in the project
documentation
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Inserting address plugs
This illustration and the following steps show the procedures to insert an address plug
in the I/O modules:
Step
Action
1
Detach the address plug having the lowest required number from the bar as
per the documentation
2
Locate the associated, mounted I/O module for this number by consulting
the documentation
3
Separate the number plate from the address plug
4
Insert the number plate at the terminal base of the corresponding module to
the left of the labelling field for the upper terminal row.
Note: The number plate serves as a reference to relocate the proper
position for a module removed temporarily from the base.
5
Plug in the address plug at the top left of the module front. Make sure that
this is the previously numbered terminal base of the respective module.
6
Continue numbering by following steps 2 to 5.
7.5 Labelling and addressing the I/O compact unit
Refer to data sheets 182E and N8182 for more information on device- and projectspecific labelling as well as on pre-printed labels.
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8
Wiring
Introduction
Prior to wiring, observe the "Safety notes" as described in chapter 0 as well as all notes
listed in this chapter.
Topics in this chapter
The following topics will be discussed:
• Supplementary information on safety
• Notes on EMC optimisation
• Supply and signal lines
• Wiring rules for AC 24 V supply lines with samples
• Wiring rules for supply and signal lines, P-bus and field devices
8.1 Supplementary information on safety
Safety notes
Galvanic separation
The following information is closely related to section 2.2 "Device-specific regulations"
and thus requires particular attention.
The following table provides information on the systems that feature galvanic
separation and those that do not.
Topic
Note
Control cabinet and
field devices mains
voltage
Connecting these devices to a building automation and control
system occurs in the corresponding modules via galvanically
separated inputs or outputs. These are:
– Relays on switching and positioning modules
– Opto-couplers in the signalling module with mains voltage
input
Isolation at a minimum is:
AC 3750 V as per EN 60 730-1
Inputs and outputs of
I/O modules
The inputs and outputs of I/O modules are not galvanically
separated from the system electronics.
Exception:
– Switching and positioning modules with relay outputs
– Signalling module with mains voltage input.
– Interface modules
Protection of I/O
modules from faulty
wiring
The I/O modules are protected against faulty wiring in the following cases:
– Interchange of G and G0 at the module supply block of the I/O bar
– Supply of system potential G to the connecting terminals G0 and vice versa
– Short-circuit at the module inputs and outputs for analogue signals
– Supply of operating voltage 24 AC to the module inputs and outputs.
Caution: This does not apply to measured value module PTM1.2I25.
Wire arrangement, duct
cross sections
• Wire the devices in the cable ducts as usual
Recommendation: Design the cable duct cross sections for about 30 % reserve
• Internal and external wiring of devices in the control cabinet can be made together
with other lines for mains supply in the same duct such as cables to contactors or
triacs
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Lines and connecting
terminals
Use wire types and cross sections as per the following specifications:
Topic
Specifications
Cable materials
Use regular litz cables and wires. The ends can be connected
directly or strengthened with ferrules or end pins.
Important: If lines with extra-low voltage are run next to lines
with mains voltage, they must show the same isolation properties
as those with mains voltage.
Wire cross
section
The regular wire cross section for internal control lines is 1.5 mm2.
Device
connecting
terminals at I/O
modules
The device connecting terminals are designed for wires of:
Connecting
terminals for I/O
compact units
• min. 0.5 mm ∅
• max. 2 x 1.5 mm2 or 1 x 2.5 mm2
The connecting terminals have metal clamps which make good
electrical contact and prevent their fastening screws from
damaging the wire ends.
Important: For connections, use only the inserted, plug-in
original connecting terminals.
Stud torque
When using electric screw drivers for wiring the connecting terminals, set the stud
torque to 0.5...0.6 Nm or 50...60 Ncm.
Screw drivers for
I/O modules
The screws for connecting terminals a the I/O modules are combined slot/cross screw
heads.
Cross heads are "Phillips" types. Screwdrivers suitable for use must not be marked
with an X (for Pozidrive/Supadrive cross headed screws).
Transformer sizing for
AC 24 V
Sizing of transformer output is conducted by the engineering party as per the
information supplied in basic document Z8102, "I/O Module System Basics".
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8.2 Notes on EMC optimisation
Wiring rules
Control cabinet wiring
If you expect high EMC emissions in the control cabinet or in the building, equipment
susceptible to interference can be better protected by applying the following wiring
rules:
• In the control cabinet, the connecting terminals and cable ducts for unscreened
cables must be segregated from those for screened cables
• All connections must be on the same control cabinet side (mains and control
lines/inputs and outputs)
• Avoid cable loops
• Reserve sufficient space for correct connection of the cable screens
• Integrate the control cabinet into the building's equipotential bonding
Building wiring
Different types of cable in
one cable duct
When installing cable ducts, be sure to segregate high-interference cables from
equipment susceptible to interference.
Cable types
• Cables emitting interference:
Motor cables, power cables
• Cables susceptible to interference: Control cables, extra-low voltage cables,
interface cables LAN cables, digital and
analogue signal cables
Cable segregation
• Both cable types can be routed in the same cable ducting, but in different
compartments.
• If ducting with three closed sides and a partition is not available, interferenceemitting cables must be separated from other cables by a minimum of 150 mm or
routed in separate ducting.
• Crossing of high-interference cables with equipment susceptible to interference
should take place only at right angles.
Unscreened cables
When selecting screened or unscreened cables, follow the manufacturer's installation
recommendations. In general, unscreened twisted-pair cables have sufficient EMC
characteristics for building services (incl. data applications) as well as the advantage
that no provision is required for coupling to the surrounding earth.
Screened cables
To ensure a proper screening effect, it is important that the cable screens be correctly
connected to the ground (reference potential). The ground (reference potential) serves
to divert and short-circuit any existing interference voltage from the screening.
Cable screens must always be optimally connected to the ground at both ends.
To prevent earth loops or voltage differences, the earthing strategy must be
designed with extreme care.
Note
In potentially explosive atmospheres, special rules apply for connecting the screen
Earthing of screened bus
lines
Lay the cable screens of screened lines at the entry point on the metallic structure of
the control cabinet and connect them to the building's equipotential bonding. Use
metallic clamps to do this. The cable screens must be connected at both ends. (For
further information, refer to section 4.2 "EMC compliant control cabinet").
Problems with screened
cables
• To ensure cable screening is effective at high frequencies, it must always be
connected at both ends to the ground. However, equipotential bonding must never
take place via the cable screening.
• In the absence of equipotential bonding (e.g., connections over long distances
between buildings), separate equipotential bonding must be installed.
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Attaching cables in the
control cabinet
The following illustrations show correct connections of screened and unscreened
cables to the screen and cable attachment rails.
For clean screen connections, use only commercially available screen connection
terminals.
Cable attachment
Attaching cables in the control cabinet
I/O modules
Process units
8202Z13E
Screen connection
Carrier rail
Screen rail
Cable attachment
rail
Unscreened cable
Screened cable
Do not use the screen rail for cable tension relief.
8202Z11E
Screen connections using a screen connection terminal
8202Z10E
Screen
connection
terminal
Right
Screen rail
Carrier rail
8202Z12E
Screen
connection
terminal
Wrong
Avoid braided screens
Braided screen
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8.3 Supply and signal lines
Introduction
The following diagrams show the basic structure of supply and signal lines in the I/O
module system.
I/O bar
Diagram for the I/O bar:
PD
PU
PC
G0
G
L
N
P-BUS
AC 24 V
AC 230 V
8105A01
Legend
P-BUS
PD
PU
PC
Process bus of automation station
Data line, bi-directional
Reference voltage DC 24 V for module functions
Synchronisation line (clock) for data transmission
AC 24 V operating voltage
G0
System neutral for reference voltage PU and operating voltage G
G
System potential for AC 24 V operating voltage with external transformer for
terminal base supply of active sensors and actuators
AC 230 V mains voltage
L
Phase line (normal AC 230 V) for non-floating
relay outputs for control of contactors and three-position actuators
N
Neutral conductor
Note
The following diagrams show a simplified I/O bar designated by "BUS".
Module supply block
Diagram for the module supply block PTX1.01
SP
PTX1.01
G
PD PU PC
F1
BUS
F2
PD PU PC
SN
Legend
X
8105A02
G0
X
Module supply block PTX1.01
F1, F2 Microfuses 10 A slow
P-BUS
PD
PU
PC
Process bus from automation station
Data line, bi-directional
Reference voltage DC 24 V
Clock line for data transmission
AC 24 V operating voltage
G
System potential (SP)
G0
System neutral (SN)
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Diagrams for:
– Phase supply block PTX1.00
– Neutral supply block PTX1.02
(left)
(right)
PTX1.02
8105A03
Phase supply and
neutral supply block
L
PTX1.00
BUS
L
BUS
X
N
X
8105A04
N
Legend
X
L
N
Phase supply block PTX1.00 or neutral supply block PTX1.02
Phase conductor
Neutral conductor
I/O modules
The following illustration shows the structure of the I/O module diagrams in electric
circuits.
1
Sample: switching module
with feedback PTM1.4QD
2
1
3
2
4
3
5
4
Legend
1
2
3
4
5
L
Q1
Q2
Q14 G0 E1
Q24 G0 E2
Channel 1
Channel 2
8102A01E
BUS
L
Contact to I/O bar for extra-low voltage AC 24 V (G, G0) or mains voltage (L, N)
Continuous numbering of the I/O points of a module
(the switching command Q14 and the associated feedback E1 count, e.g., as two I/O points)
Dotted lines in multiple modules separate the same module functions in the housing. There are 2-, 4-,
and 8-duct modules. The I/O duct (subaddress) is the smallest addressable unit.
I/O bar to which the pluggable I/O modules are connected in terms of electricity
Connecting terminals for the I/O points, several terminals depending on the input or output
(e.g., three-position output)
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8.4 Wiring AC 24 V supply lines
Basic wiring
The diagram below shows basic wiring of supply lines for:
– Module groups with AC 24 V operating voltage
– Mains voltage (L and N) on I/O bars via phase supply and neutral supply blocks
Note
AC 230 V wiring is not described separately.
L
N
AC 230 V
G
T
AC 24 V
G0
F1
...A
G G0 G G0 G G0 G G0
N L
max. 10A
N
F2
F3
X1
X7 X4
F4
X2
8017V01
8017V01
X8 X5
F5
X3
X9 X6
Legend
N
T
F1
F2
F3...F5
X1...X3
X4...X6
X7...X9
G
G0
Automation station
AC 230 V/AC 24 V safety transformer as per EN 61 558
Extra-low voltage fuse, for max. power consumption with AC 24 V
Mains voltage fuse max. 10 A for switching contacts with mains voltage
Microfuses 10 A slow, pre-integrated in the module supply block at the factory
Module supply blocks PTX1.01
Phase supply blocks PTX1.00
Neutral supply blocks PTX1.02
System potential (SP)
System neutral (SN)
Maximum line length
The table below shows the maximum permissible line length for differing cross sections
and the respective load:
Lines to the automation station
3.5 m
5m
8m
with 1.0 mm2
with 1.5 mm2
with 2.5 mm2
Lines to the I/O bar
1.5 m
2.5 m
4m
with 1.0 mm2
with 1.5 mm2
with 2.5 mm2
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Note
Do not use cross sections smaller than the designated ones. Do not wire the lines in
parallel to enlarge the cross sections.
Line materials
Use the following material for lines G and G0 of the AC 24 V supply voltage:
– Litz wire with 1 mm2, 1.5 mm2 or 2.5 mm2 cross section
– Single or in 2-core cable
Rules and
recommendations
These are the rules and recommendations on wiring supply lines:
Terminology: The term "system" stands for automation stations together with their I/O
module
groups.
Topic
Rule/Recommendation
Own transformer
per system
Recommendation: Own transformer per system.
Supply of several automation stations and the associated
module groups by one shared transformer is permissible if the
devices are mounted in the same control cabinet.
Separate supply
lines for AC 24 V
The automation stations and each module group must be
wired separately from the connecting terminal strip (G, G0).
This strip must be mounted near the transformer (see wiring
examples).
Wiring G0 and G to
the I/O bars
The lines G0 and G must principally be wired to the module
supply blocks of individual module groups because:
– G0 (system neutral) is necessary for module supply
– G (system potential) in addition is necessary internally for
specific module types, e.g., for manual operation or for
supply of the field devices connected to the module.
Earthing of G0
Connect each system with PELV to the earth at one end only
(normally at the transformer), unless otherwise specified.
Connection of G0
for distributed
systems
Do not connect the system neutral (G0) of distributed plants.
This avoids earthing loops (e.g., by connecting several PC
tools).
Separate supply of
automation stations
and module groups
Within a system, separate supply of the automation stations
and the associated module groups with one transformer each
is permissible, but:
The system neutrals (G0) of both transformers must be
connected, as G0 serves as a shared return line.
Phase angle of the
transformers
The phase angle of the transformers to each other does not
need to be included and transformer supply can occur via
several phases ( L1, L2, L3 ).
Separate supply of
the module groups
This may be meaningful or necessary for
– Widely distributed module groups
– high power demand at the I/O bar (actuators)
– modules with AUTOMATIC / HAND switches to ensure
manual operation from emergency supply.
Wiring variants
Depending on the situation, further variants can be applied (see wiring examples).
Binding documentation
• The project-specific electrical diagram is binding for control cabinet wiring.
• Basic wiring variants for supply lines are available in the wiring samples below.
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8.5 Wiring sample for AC 24 V supply
I/O modules in separate
control cabinets
See table "Maximum line length" for permissible line length for AC 24 V supply.
L
N
A1
AC 230 V
A2
T1
AC 24 V
G G0 G G0 G G0
N1
8102V03
PTX1.01
X1
W1
X2
PTX1.01
Legend
A1
A2
N1
T1
W1
X1, X2
Control cabinet 1
Control cabinet 2
Automation station
Transformer
P-bus cable
I/O module groups
Two transformers and I/O
modules with common
P-bus, but separate
control cabinets
The system neutral (G0) of the two supplies must be connected directly at the
transformer.
See "Standard P-bus wiring" for permissible P-bus cable length.
N
L
AC 230 V
A1
N
L
AC 230 V
A2
T1
T2
AC 24 V
AC 24 V
W1
G G0 G G0 G G0
G G0
N1
PTX1.01
8102V04
X1
X2
Legend
A1
A2
N1
T1,T2
W1
W2
X1…X3
PTX1.01
W2
X3
PTX1.01
Control cabinet 1
Control cabinet 2
Automation station
Transformers
Connection for shared system neutral
P-bus cable
I/O module groups
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Application, e.g., in I/O modules with manual switches to ensure emergency operation.
L
N
L
AC 230 V
N
8102V02
Separate transformers
for automation station,
NIDES.RX and I/O
modules
AC 230 V
T1
T2
AC 24 V
AC 24 V
W1
G
G0
G
G G0 G G0
G0
G G0 G G0
W4
U
PTX1.01
PTX1.01
X1
W2
N1
X3
W3
PTX1.01
X2
Legend
N1
U
T1, T2
W1
W2, W3
W4
X1…X3
Automation station
NIDES.RX interface
Transformers
Connection for shared system neutral
P-bus cable
NIDES.RX trunk
I/O module groups
Common transformer for
I/O modules and two
automation stations
Requirement: Both automation stations are located in the same control cabinet and
linked in terms of application.
L
N
AC 230 V
T1
AC 24 V
G G0 G G0 G G0 G G0 G G0 G G0
N2
PTX1.01
X1
W1
X2
Legend
N1, N2
T1
W1, W2
X1…X4
X3
PTX1.01
8102V01
N1
W2
PTX1.01
X4
PTX1.01
Automation stations
Transformers
P-bus cable
I/O module groups
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8.6 Standard P-bus wiring
Serial wiring
The diagram below shows the wiring of a standard P-bus with unscreened cable. P-bus
standard cables can be 50 m long and are wired as follows:
1. From the automation station to the module supply block of the first I/O bar
2. Serial wiring to all other associated module supply blocks
8017V13
For this purpose, the corresponding terminals exist in double at the module supply
block and they are linked internally (see section 8.3 "Supply and signal lines", "Module
supply block").
N
W
X1
X2
X3
Legend
N
W
X1...X3
Automation station
Standard P-bus cable
Module supply blocks
Specifications and
permissible line lengths
The table below contains bus cable specifications and notes.
Topic
Specification/Note
Bus cable
3-core, unscreened round cable for lines PD, PU, PC
– Route inside and outside of the control cabinet as a cable
– Single wires are not allowed
Note: Flat ribbon cable (with reference line PU in the centre) can be
used, but it is more vulnerable to interference than round cable.
Line lengths
P-bus length for lines PD, PU, PC
– max. 20 m with 3 x 0.75 mm2
– max. 30 m with 3 x 1.0 mm2
– max. 50 m with 3 x 1.5 mm2
The maximum line length includes all individual bus sections!
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Notes on running P-bus
cables
As a rule, the P-bus cable can be run together with the cable for AC 24 V operating
voltage and lines with AC 3 x 400 V. However, please remember the following:
• If lines with extra-low voltage are run next to lines with mains voltage, they must
show the same isolation properties as those with mains voltage.
• For reasons of electromagnetic compatibility, we recommend separating extra-low
voltage lines from mains voltage lines. Recommended minimum distance: 150 mm.
Starlike wiring
Starlike wiring of the P-bus is permissible. It is used, for example, when the I/O module
groups belonging to a automation station are located in various control cabinets.
The following picture shows a basic configuration.
N
W
X1
X2
X3
8017V14
Legend
N
W
X1...X3
Automation station
Standard P-bus cable
Module supply blocks
Wiring rules
Observe the following rules for serial or starlike wiring of the standard P-bus:
Topic
Rule
Several automation
stations
With several automation stations, the P-bus must only be
run from a automation station to the associated I/O bar(s).
Several automation stations must never be connected via
the same P-bus.
Only one P-bus per
I/O bar
Only one module supply block must be set per I/O bar.
Double P-bus lines to an I/O bar, by using two module
supply blocks, are thus not permissible.
System neutral (G0)
The P-bus requires G0 in addition to PD, PU and PC.
This line normally is run separately.
However, running this line in the same cable is permitted,
e.g., for connections between two control cabinets.
Ring configuration
Ring-type wiring of the P-bus is not permissible.
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8.7 Remote P-bus
Definition and use
When using two screened cables (coaxial cables), the P-bus can be extended to 200
meters. It is then called a remote P-bus. Use: To connect distributed I/O module groups
to a automation station.
Wiring diagram
The following diagram shows a combination of standard P-bus and remote P-bus
connected to a automation station.
B
PC PD
PU
AC 230 V
Control panel
AC 24 V
G0
G0 G0 G
G0
G G0 G
G0 G
RG-62A/U
PC
PU
PD
Remote P-bus
G
Process unit
T2
G0
PC PU PD
Standard P-bus
G G0
C
G0 G
A
PC PU PD
PTX1.01
8102Z38E
PC PU PD
D
Explanations
G G0
Please note the following explanations and notes on the above diagram:
Pos.
Explanations/Notes
A
Module group in the control cabinet, connected via the standard P-bus
B
Wiring and connections via the remote P-bus:
– Clock (PC) and data (PD) lines must be connected to the inner conductor
of each coaxial cable.
– The reference voltage (PU) must be run via the screening of the two
coaxial cables; the screens of the two cables must be linked.
Caution: In this case, the cable screening is used as a conductor
(DC 24 V) and must neither be grounded nor earthed.!
C
Module group at the remote P-bus with I/O modules requiring AC 24 V supply
(standard case): A supply transformer must be installed locally at the module
supply block.
D
Module group at the remote P-bus with only I/O modules that do not require
AC 24 V supply: No supply transformer is necessary
G0 line
For the system neutral (line G0), use a 1-core, Cu cable, cross section 1.5 mm2. For
reasons of electromagnetic compatibility (EMC), the P-bus lines and line G0 must be
run in parallel and be tied together by means of a cable binder ever 3 to 4 meters (see
details in the above diagram).
Engineering
Refer to data sheet N8022 for an extensive description of the P-bus (standard and
remote P-bus).
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8.8 Connecting field devices
Introduction
This section discusses the most important issues relating to field device connection in
the control cabinet. However, actual field wiring is part of engineering.
Connections
The following table contains notes on field wiring:
Lines
Engineering
Topic
Note
Connecting
terminals
The terminal bases of the I/O modules serve as terminal blocks
for connecting external units and satisfy the corresponding
standards. As a result, standard separate control cabinet
terminal blocks are not necessary.
Not switched mains
voltage
This voltage can be fed via the I/O bar by means of phase
supply and neutral supply blocks.
Mains voltage
supply to field
devices
• Switching modules with non-floating relay contacts:
Main voltage is supplied to the modules directly from the I/O
bar. The max. permissible current for rails running mains
voltage (L and N) is 6 A (standard operation).
• Switching modules with potential-free relay contacts:
They can be supplied by mains voltage (switching voltage)
from external sources via the connecting terminals at the
terminal base.
The table below contains notes on wire arrangements and line length:
Topic
Note
Wire arrangement
The lines feeding the field can be run without screening
together with other lines (also supply lines AC 3 x 400V) such
as in cable ducts.
Refer to "Notes on laying P-bus cables" (see section 8.6)
The project-specific documents list all exceptions to the above
information.
Line length and
cross sections
The line length and cross sections are restricted by the
following criteria:
• Line resistance in conjunction with measured value modules
for passive resistance sensors (LG-Ni 1000 Ω, Pt 1000 Ω)
• Voltage drop for measured value modules for active sensors
(DC 0...10 V input) and positioning modules (DC 0...10 V
output)
• Noise interference from neighbouring lines for all module
types
The respective line types and cross sections are listed in the
project-specific documents.
Refer to Z8102 "Basics on the DESIGO I/O Module System" for information on field
wiring engineering.
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9
Chapter structure
Note
Inspection and checks
This chapter primarily is comprised of checklists. Please conduct all checks by
following the sequence as indicated in this chapter.
The checks refer to the fully installed control cabinet at the manufacturer's location—not
the control cabinet including external wiring at the plant location.
9.1 Placing and mounting equipment
Control cabinet layout
Check the unit layout as follows:
Step
1
Mounting of I/O modules
with accessories
Topic
OK
Has distribution and sequence of module groups and types on the
I/O bars been conducted as per the documentation?
Check both I/O module installation and accessories as follows:
Step
Topic
1
Are the rails fastened securely to the mounting frame?
2
Are the I/O bars fastened securely to the mounting frame?
OK
Note: The I/O bars normally are fastened only if
– top-hat rails are used for carrier rails
– the module groups are mounted vertically
3
Are the clamping screws tightened securely at the module supply
blocks and the phase supply blocks?
4
Are the I/O modules and terminal base correctly snapped onto the
standard rails and the I/O bars?
9.2 Wiring
Visual check
Visually check the following wiring aspects:
Step
Topic
1
Are all internal wire connections in the control cabinet available as
per the wiring diagram?
2
If more than one transformer per system is used for AC 24 V:
OK
Are the system neutrals (G0) of the transformers connected?
3
Does the transformer directly supply each I/O bar?
4
Has the system neutral (G0) been earthed or not earthed as per the
plant wiring diagram?
5
Standard P-bus: Were the lines PD, PU, PC run as a 3-core cable
as is? Single wires are not allowed!
6
Does the connecting terminal assignment match the wiring
diagram?
7
Have all terminal screws been tightened?
8
Did you check all connecting wires by pulling them?
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Electrical check
Conduct the electrical check by following these steps:
Step
1
Topic
OK
Disconnect the wiring of the devices as follows:
• Remove the automation station from the housing
• Swing out the I/O modules to their position of rest
2
Conduct point-to-point checks of the connecting lines by means of
acoustic and optical signal transmitters
3
Conduct the isolation test as defined by regulations
4
Reinsert or swing back the units (step 1)
9.3 Power supply
Equipment fusing and
sizing
Check the equipment for correct fusing and completeness as per the following
regulations:
Step
Voltage supply
Topic
OK
1
If mains voltage is applied to the I/O bars and I/O modules
(max. 10 A):
Does the fusing meet the regulations?
2
Fuse for operating voltage AC 24 V:
• At the transformer: Does a fuse exist for line G (system potential)
and possibly for line G0 (system neutral)?
• Do the fuses correspond to the values as indicated in the plant
diagram?
(Effective load of the connected control cabinet and field devices)
3
Does the AC 24 V transformer rating on the type plate match the
output as indicated in the plant diagram?
(Supply of the control cabinet devices including all respectively
connected field devices)
4
Does the AC 24 V transformer as per the information on the type
plate correspond to a safety insulating transformer with double
isolation as per EN 61 558, designed for 100 % runtime?
The following steps help you determine if the devices are supplied with the required
voltage:
Step
1
2
Topic
OK
Observe all local regulations pertaining to work on an open control
cabinet!
Turn on the supply voltages.
The following voltages must exist at the module supply block of the
I/O bar:
– Operating voltage AC 24 V between G and G0
– Direct voltage of about DC 24 V between PU and G0 (delivered
by the automation station for module supply)
3
If planned as per the plant diagram:
The possibly externally supplied voltage (max. AC 250 V) must exist
at the phase supply block
Note: The terminal block can also act merely as a mechanical holder
between I/O bar and rail.
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9.4 Labelling and addressing
Labelling
After plant-specific labelling has been delivered, check the assignments to the devices
as per the engineering documentation (plant diagram, module list, control panel layout,
etc.):
Step
Addressing
Topic
Checks
OK
1
I/O module housing
Do the inserted front labels match the module
types and functions?
2
I/O module base
If the connecting terminals are labelled plantspecifically:
Do the labels match those of the plant wiring
diagram?
3
Module supply
block
If several I/O bars are mounted:
Is the numbering correct at the associated
module supply block (e.g., X1, X2, X3, etc.)?
4
Phase supply
block/neutral
supply block
Is the connecting terminal labelled in
accordance with the connected line label
(phase conductor L and neutral conductor N)?
If the I/O modules are supplied with pre-plugged address plugs or if you inserted them
as per the underlying documentation, check the following:
Step
Topic
1
Does the address allocation to the modules match that of the
underlying documentation?
2
Is the address number on the address plug in the module housing
identical to the address number on the address plate of the
associated terminal base?
OK
9.5 Function check
Execution
You can check the functions of the I/O modules at the automation station.
This procedure is system-dependent and is documented in detail in the associated
documentation.
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9.6 Delivery
I/O modules and
documentation
After conducting the checks as per the previous checklists, prepare as follows the
control cabinet containing the I/O modules for delivery:
Topic
Requirements
OK
I/O modules
For modules with AUTOMATIC/HAND function, the
switch is set to AUTOMATIC
Implementation and
descriptive
documentation
The project-specific documentation for mounting
and wiring the I/O modules in the control cabinet is
complete and has been stored in the control
cabinet.
Note
Refer to the mounting and installation guide M8202 "UNIGYR Process Units" for the
scope of delivery on the installed automation stations.
Acceptance criteria
Criteria for acceptance of delivery are:
Correct mounting and installation of the I/O modules in the control cabinet as per the
• information in this mounting and installation guide and
• the respective project documentation
Missing materials or
information
Please contact the contractor in the case of missing materials, poor or missing
information in the documentation, etc..
If you cannot conduct a portion of your work despite contacting the contractor, proceed
as follows:
• Write down the facts
• Attach this paper easily visible in the control cabinet
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10 Disposal
Please observe the
following notes
Disposal
We produced all equipment and accessories in this control cabinet by applying
environmentally-compatible materials and procedures. Additionally, the equipment has
been designed for low energy consumption.
Please remember the following when disposing of the equipment after expiration of its
life or on defects:
•
•
•
•
•
•
Dispose of it properly, i.e., separate the parts according to materials. To do this,
note the various material and disposal notes available on specific parts. The aim is
to achieve maximum recyclability at the lowest possible pollution.
Separate hazardous materials from the devices and set them aside for special
disposal. Hazardous materials are for example: Batteries and accumulators, LCDs
and parts containing mercury.
Proceed by separating all remaining materials and recycle as much as possible.
Do not dispose of electric and electronic waste via regular household garbage—
dispose of these materials at the designated disposal sites.
As a rule, dispose of all waste in an environmentally compatible manner and in
accordance with environmental, recycling, and disposal techniques.
Ask your vendor, the designated disposal company or SBT BAU when unsure or
when you experience problems. SBT BAU will provide all necessary information to
properly dispose of all equipment in this system.
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11 Appendix
Chapter contents
This chapter discusses the following topics:
• I/O module and accessories dimensions
• Referenced documents
• Feedback form
11.1 Dimensions
I/O modules PTM1…
These are the dimensions for I/O modules PTM1…, snapped onto the following rails:
– Top-hat rail EN50022-35 x 7.5 or
– G-rail
EN50035-G32
94
94
2x32=64
5
EN50035-G32
EN50035-G32
I/O compact units
PTK1.30V01 and
PTK1.23V02
EN50022-35x7,5
7,5
EN50022-35x7,5
15
8106M01
32
35
87
54
59,3
123,3
80
4,5
40
18
32
These are the dimensions for the I/O contact units:
A. Mounting by using wall brackets
50
176
76
40
9
8181M06
59
133
4,5
34
7
328
76
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B. Mounting by using wall brackets on top-hat rail
328
176
50
76
40
32
59
101
34
7
76
8181M05
C. Mounting by using wall brackets on leftward I/O module extension
x 32
max. 64
94
min.40
PTX1...
EN50022-35 x 7,5
8181M03
32
47
50
54
32
D. Mounting by using I/O bar and top-hat rail on rightward I/O module extension
94
min. 328 + (x 32)
328
32
50
32
8181M04
54
47
32
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Module supply block
PTX1.01
These are the dimensions for the module supply block PTX1.01, snapped onto the
following rails:
– Top-hat rail EN50022-35 x 7.5 or
– G-rail
EN50035-G32
63,2
2x32=64
5
32
35
54
59,3
123,3
4,5
40
32
EN50035-G32
Phase supply block
PTX1.00
Neutral supply block
PTX1.02
EN50022-35x7,5
7,5
EN50035-G32
15
8105M01
EN50022-35x7,5
These are the dimensions for the phase supply block PTX1.00 and the neutral supply
block PTX1.02, snapped onto the following rails:
– Top-hat rail EN50022-35 x 7.5 or
– G-rail
EN50035-G32
2x32=64
63.2
5
EN50022-35x7,5
7,5
EN50035-G32
15
8105M02
EN50035-G32
32
35
54
59,3
122
4,5
40
15.8
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I/O bars PTX1...
These are the dimensions for the I/O bars PTX1…
X x 64 = Y + 4,5
22,3
8105M03
60
4,5
64
18
8,5
16
Standard lengths
32
The standard length for the I/O bars is a multiple of 64 mm, plus 5.0 mm for the end
covers (PTX1.08):
Type
PTX1.3
PTX1.5
PTX1.6
PTX1.8
Length
389 mm
517 mm
645 mm
901 mm
Standard rails
In order to attach the I/O modules, the following standard rail types can be used:
• Top-hat rail EN50022-35 x 7.5 (and 35 x 15 as well as derived profiles with t-nut)
• G-rail
EN50035-G32 (15 x 32 and derived profiles)
Top-hat rail
These are the top-hat rail EN50022-35 x 7.5 dimensions
7 ,5
35
1
8105M04
G-rail
These are the G-rail EN50035-G32 dimensions
15
32
1,5
8105M05
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Appendix
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11.2 Referenced documents
Purpose of this listing
The previous chapters contain all device information required for implementation of the
control cabinet in addition to the project-specific documentation.
Documents and standards
The following listing contains:
Technical documentation of SBT BAU
• Data sheets (N….) with detailed specifications
• Basic documentation (Z....) with basics on the I/O module system
• Mounting instructions (M….) for the I/O compact units
• Mounting and installation guides (M…..) for I/O modules and automation stations
Note
The document and classification numbers listed in the table below match those of the
document information system CONSULT on the company-internal Intranet.
Standards
All standards applicable to the I/O module system are listed.
Technical
documentation
Document number
(Classification no.)
Title
Contents
I/O modules
CM2N8100en
(N8100)
DESIGO I/O module
summary
Overview, functions and
selection criteria for the I/O
modules
CM2Z8102en
(Z8102)
Technical basics
DESIGO I/O module system
Technical basics for definition,
engineering, and
implementation of plants, incl.
safety regulations
CM2N8105en
(N8105)
DESIGO I/O module system
accessories
Description of the accessories
required for mounting and
labelling
CM2N8111en to
CM2N8179en
(N8111 to N8179)
Basic functions and type for
the respective I/O module
Detailed specifications on the
individual modules
CM2M8102en
(M8102)
Mounting and installation
guide for DESIGO
I/O modules and P-bus (this
document)
Mounting and installation
instructions
CM2N8181en and
CM2N8182en
(N8181 and N8182)
I/O compact units
Detailed specifications on the
I/O compact units
4 319 2491 0
(M8181)
I/O compact units
Mounting instructions
enclosed with product
Interface modules
CM2N8663en to
CM2N8666en
(N8663 to N8666)
Basic functions and type for
the associated interface
module
Detailed specifications on the
individual modules
P-bus
CM2N8022en
(N8022)
P-bus (process bus)
Application, engineering, and
installation notes, technical
data
I/O compact units
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Document number
(Classification no.)
Title
Contents
UNIGYR process units
CM2M8202E
(M8202)
Mounting and installation
guide on UNIGYR process
units
Mounting and installation
instructions
VISONIK BPS and I/O
module system
CM2M8017E
(M8017)
Mounting and installation
guide on the VISONIK BPS
and I/O module system
Mounting and installation
instructions
Standards
HD 384
Electrical installations in buildings
EN 61 558
Safety of transformers, power supply and similar equipment
EN 60 730
Automatic electrical controls for household and similar use
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Appendix
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