Nord Drivesystems SK CU4-DEV Instructions and recipes

Intelligent Drivesystems, Worldwide Services
SUPPLEMENTARY MANUAL BU 0280 GB
DEVICENET
FOR FREQUENCY INVERTER NORDAC SK 200E
Illustration of devices with options BU 0280 GB
Getriebebau NORD GmbH & Co. KG
Rudolf-Diesel-Straße 1
D-22941 Bargteheide
Tel.: +49 45 32 - 40 10
Fax: +49 45 32 - 40 12 53

Supplementary Manual DeviceNet for NORDAC SK 200E
2 BU 0280 GB

Supplementary Manual DeviceNet for NORDAC SK 200E Safety information
BU 0280 GB 3
NORDAC frequency inverter
Safety and operating instructions for drive power converters
(as per: Low voltage guideline 73/23/EEC )
1. General
During operation, drive power converters may have, depending on
their protection class, live, bare, moving or rotating parts or hot
surfaces.
Unauthorised removal of covers, improper use, incorrect installation
or operation leads to the risk of serious personal injury or material
damage.
Further information can be found in this documentation.
All transportation, installation and initialisation and maintenance
work must be carried out by qualified personnel (comply with IEC
364, CENELEC HD 384, DIN VDE 0100, IEC 664 and DIN VDE
0110, and national accident prevention regulations).
For the purposes of these basic safety instructions, qualified
personnel are persons who are familiar with the erection,
installation, commissioning and operation of this product and who
have the relevant qualifications for their work.
2. Proper use in Europe
Drive power converters are components intended for installation in
electrical systems or machines.
When being installed in machines, the drive power converter cannot
be commissioned (i.e. implementation of the proper use) until it has
been ensured that the machine meets the provisions of the EC
directive 89/392/EEC (machine directive); EN 60204 must also be
complied with.
Commissioning (i.e. implementation of the proper use) is only
permitted when the EMC directive (89/336/EEC) is complied with.
The drive power converters meet the requirements of the low
voltage directive 73/23/EEC. The harmonised standards in prEN
50178/DIN VDE 0160, together with EN 60439-1/VDE 0660 Part
500 and EN 60146/VDE 0558 were applied for the drive power
converter.
Technical data and information for connection conditions can be
found on the rating plate and in the documentation, and must be
complied with.
3. Transport, storage
Information regarding transport, storage and correct handling must
be complied with.
4. Installation
The installation and cooling of the equipment must be
implemented according to the regulations in the
corresponding documentation.
The drive power converter must be protected against
impermissible loads. Especially during transport and
handling, components must not be deformed and/or
insulation distances must not be changed. Touching of
electronic components and contacts must be avoided.
Drive power converters have electrostatically sensitive
components that can be easily damaged by incorrect
handling. Electrical components must not be mechanically
damaged or destroyed (this may cause a health hazard!).
5. Electrical connection
When working on live drive power converters, the applicable
national accident prevention regulations must be complied
with (e.g. VBG 4).
The electrical installation must be implemented as per the
applicable regulations (e.g. cable cross-section, fuses,
ground lead connections) . Further instructions can be found
in the documentation.
Information about EMC-compliant installation – such as
shielding, earthing, location of filters and installation of
cables – can be found in the drive power converter
documentation. These instructions must be complied with
even with CE marked drive power converters. Compliance
with the limit values specified in the EMC regulations is the
responsibility of the manufacturer of the system or machine.
6. Operation
Systems where drive power converters are installed must
be equipped, where necessary, with additional monitoring
and protective equipment as per the applicable safety
requirements, e.g. legislation concerning technical
equipment, accident prevention regulations, etc.
Modifications to the drive power converter using the
operating software are permitted.
After the drive power converter is disconnected from the
power supply, live equipment components and power
connections should not be touched immediately because of
possible charged capacitors. Comply with the applicable
information signs located on the drive power converter.
All covers must be kept closed during operation.
7. Maintenance and repairs
The manufacturer documentation must be complied with.
These safety instructions must be kept in a safe place!

Supplementary Manual DeviceNet for NORDAC SK 200E About this document
4 BU 0280 GB
Documentation
Designation: BU 0280 GB
Part. No.: 607 28 01
Device series: DeviceNet for SK 200E
Device types: SK CU4-DEV
SK TU4-DEV(-C) with SK TI4-TU-BUS
SK TU4-DEV-M12(-C) with SK TI4-TU-BUS
Version list
Designation of previous issues Software
version Comments
BU 0280 GB, September 2009
Part. No. 607 2801 / 3709
V 1.1 R2 First issue
Publisher
Getriebebau NORD GmbH & Co. KG
Rudolf- Diesel- Str. 1 D-22941 Bargteheide, Germany http://www.nord.com/
Telephone [phone] / 401-0 Fax [phone] / 401-555
NOTE
This supplementary operating manual is only valid in conjunction with the operating manual
supplied for the respective frequency inverter.

Supplementary Manual DeviceNet for NORDAC SK 200E About this document
BU 0280 GB 5
Intended use of the frequency inverter
Compliance with the operating instructions is the requirement for error-free operation and
the fulfilment of any warranty claims. You must first read these operating instructions
before working with the device!
These operating instructions contain important information about service.They must
therefore be kept close to the device.
The field bus technology options described here are intended for use in combination with SK
200 E series frequency inverters. Use with other series is only possible with the SK TU4-
DEV(-C)) and SK TU4-DEV-M12(-C) technology modules for the SK 500E. The use of these
technology options with other devices is not permitted and can lead to their destruction.
The field bus technology options and the associated frequency inverters are devices for fixed
installation on motors or in equipment close to the motor to be operated. All data regarding
technical data and permissible conditions at the installation site must be complied with.
Commissioning (implementation of the intended use) is not permitted until it has been
ensured that the machine complies with the EMC directive 89/336/EEC and that the
conformity of the end product meets the machine directive 89/392/EEC (note EN 60204).
Getriebebau NORD GmbH & Co. KG, 2009

Supplementary Manual DeviceNet for NORDAC SK 200E Table of Contents
6 BU 0280 GB
1 GENERAL INFORMATION...................................................................................................... 8
1.1 Overview.............................................................................................................. 9
1.2 Delivery................................................................................................................ 9
1.3 Scope of supply................................................................................................... 9
1.4 Certifications...................................................................................................... 10
1.4.1 European EMC Directive ........................................................................................10
1.4.2 RoHS compliance...................................................................................................10
1.5 Type code / Optional BUS modules.................................................................. 11
1.6 Version with protection class IP55 / IP66.......................................................... 12
2 ASSEMBLY AND INSTALLATION ....................................................................................... 13
2.1 Installation and assembly.................................................................................. 13
2.1.1 Features of DeviceNet modules..............................................................................15
2.1.2 Installation of the Customer Unit SK CU4-DEV ......................................................16
2.1.3 Installing the SK TU4-DEV-… Technology Unit......................................................17
2.2 Electrical connection.......................................................................................... 19
2.2.1 Cable glands...........................................................................................................19
2.2.2 Control connections................................................................................................20
2.2.3 Configuration ..........................................................................................................26
3 DISPLAYS AND DIAGNOSIS................................................................................................ 28
3.1 LED displays...................................................................................................... 28
3.1.1 Device-specific display versions.............................................................................28
3.1.2 Signal status LEDs .................................................................................................30
3.2 RJ12 Diagnostic socket..................................................................................... 33
4 COMMISSIONING.................................................................................................................. 35
4.1.1 Gateway function....................................................................................................35
4.1.2 Parameterisation via DeviceNet..............................................................................35
4.1.3 Timeout monitoring.................................................................................................35
4.1.4 Input filtering...........................................................................................................35
4.2 DeviceNet process data .................................................................................... 36
4.2.1 I/O messages..........................................................................................................36
4.2.2 Interpretation of data in the Assembly Object.........................................................37
4.2.3 Explanation of the I/O Assembly Data for the AC Drive Profile...............................38
4.2.4 Explanation of the I/O Assembly Data for the NORD-AC Profile ............................39
4.2.5 Generation of variable data lengths in Instance 120/130........................................40
4.3 DeviceNet objects.............................................................................................. 41
4.3.1 Class 1 – Identity Object.........................................................................................41
4.3.2 Class 3 –DeviceNet Object.....................................................................................41
4.3.3 Class 4 – Assembly Object.....................................................................................42
4.3.4 Class 5 – DeviceNet Connection Object.................................................................43
4.3.5 Class 40 – Motor Data Object.................................................................................43
4.3.6 Class 41 – Control Supervisor Object.....................................................................44
4.3.7 Class 42 – AC- Drive Object...................................................................................45
4.3.8 Class 43 – Acknowledge Handler Object................................................................45
4.3.9 Class 100 to 181 – Access to FI and bus module parameters................................46
4.3.10 Class 199 - NORDAC Index Object......................................................................46

Table of Contents
BU 0280 GB 7
5 PARAMETERISATION...........................................................................................................47
5.1 Parameterising the SK 200E frequency inverter................................................47
5.1.1 Basic parameters (P100) ........................................................................................47
5.1.2 Control terminal parameters (P400)........................................................................48
5.1.3 Supplementary parameter (P500)...........................................................................50
5.1.4 Information parameters (P700)...............................................................................54
5.2 Parameterisation of the bus module (SK CU4-… or SK TU4-…) ......................56
5.2.1 BUS module standard parameters (P150)..............................................................56
5.2.2 DeviceNet Parameters............................................................................................56
5.2.3 BUS module information parameters, general (P170) ............................................59
5.2.4 Module information parameters specific to the bus (P180).....................................62
6 ERROR MONITORING AND ERROR MESSAGES...............................................................63
6.1 Error monitoring..................................................................................................63
6.2 Error messages..................................................................................................64
6.2.1 Table of possible error messages (caused by the bus) in the frequency inverter ...64
6.2.2 Table of possible error messages in the bus module..............................................65
7 DEVICENET DATA TRANSMISSION....................................................................................66
7.1 Structure of reference data.................................................................................66
7.2 NORDAC profile.................................................................................................67
7.2.1 Control word (STW) ................................................................................................67
7.2.2 Status word (ZSW)..................................................................................................68
7.2.3 Setpoint and actual values......................................................................................69
7.2.4 The status machine.................................................................................................71
8 ADDITIONAL INFORMATION................................................................................................73
8.1 System bus.........................................................................................................73
8.2 Electronic data sheet (eds file)...........................................................................73
8.3 Repairs...............................................................................................................73
9 INDEX......................................................................................................................................74
10 KEYWORD INDEX................................................................................................................75
11 REPRESENTATIVES / BRANCHES....................................................................................76

Supplementary Manual DeviceNet for NORDAC SK 200E
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1 General information
Various technology options are available for Getriebebau Nord frequency inverters. General information
regarding these can be found in the relevant main manual of the frequency inverter series (e.g. Manual
BU0200 for the SK 200E frequency inverter series). Further information concerning special technology
options (e.g. the field bus module) is included in the relevant supplementary operating instructions.
This DeviceNet documentation contains supplementary descriptions concerning the DeviceNet options for
the SK 200E frequency inverter series.
The description of other optional modules (e.g. CANopen, Profibus DP) is dealt with in other supplementary
documentation.
In order to set up communication with DeviceNet, either an internal Customer Unit or an external
DeviceNet Technology Unit (according to the particular application) must be installed and connected.
The DeviceNet bus system
DeviceNet allows numerous different automation devices to exchange data with the frequency inverters.
PLC's, PC's, operating and monitoring devices can all communicate via a uniform bus in serial bit mode.
DeviceNet is primarily used for communication between sensor and actuator where system response needs
to be very fast. DeviceNet is primarily used where time critical, fast and complex communication between
the individual devices is essential. DeviceNet is a suitable alternative to expensive 24-volt parallel signal
transmission and transmission of measured values. This type of DeviceNet, which is optimised to speed, is
used for instance for operating frequency inverters on automation devices.

1 General information
BU 0280 GB Subject to technical amendments 9
1.1 Overview
Features of DeviceNet modules
Electrically isolated bus interface
Transfer rate up to 500 kBaud
Easy connection of the frequency inverter, optionally via M12 round plugs or screw terminals
Looping of the DeviceNet via the modules is possible
Integrated bus termination resistor
DeviceNet-specific status display with 2 LEDs
Module or FI-specific status display with 2 LEDs
Up to four 24V inputs and two 24V outputs are integrated into the bus module
Direct connection of up to 4 sensors and 2 activators via M12 round plug connectors on the SK TU4-
DEV-M12(-C) version. Visualisation of signal status via LEDs
DeviceNet gateway solution →up to 4 frequency inverters can be connected to a DeviceNet module
Up to 64 DeviceNet modules can be connected to the bus, so that it is possible to operate up to 256
frequency inverters on a single bus.
Interface (RS232/RS485) for parameter access by means of the SK CSX-3H or SK PAR-3H manual
control unit or NordCon software via RJ12 connector (Except for SK CU4-DEV. Here parameter
access via the SK 200E frequency inverter is possible)
Available as versions for installation in the inverter (IP20) or in a separate housing (optionally IP55 / IP66)
1.2 Delivery
Check the equipment immediately after delivery/unpacking for transport damage such as deformation or
loose parts.
If there is any damage, contact the carrier immediately and implement a thorough assessment.
Important! This also applies even if the packaging is undamaged.
1.3 Scope of supply
Standard version: SK CU4-DEV IP20 or
SK TU4-DEV(-M12)(-C) IP55, (optionally IP66)
Operating instructions as PDF file on CD ROM including NORD CON, (Windows PC-
based parameterisation software)

Supplementary Manual DeviceNet for NORDAC SK 200E
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Available accessories:SK TI4-TU-BUS(-C) (bus connection unit, required for SK TU4…)
SK TIE4-WMK-TU, wall-mounting kit TU4
M12 round plug connector
Matching RJ12 to SUB-D9 adapter cable to connection to a PC
ParameterBox: SK CSX-3H, SimpleBox, 4 digit 7 segment LED display
ParameterBox: SK PAR-3H, ParameterBox, plain text LCD display
1.4 Certifications
1.4.1 European EMC Directive
If the NORDAC SK 200E or its options are installed according to the
recommendations in this instruction manual, it meets all EMC directive
requirements, as per the EMC product standard for motor-operated systems
EN 61800-3.
1.4.2 RoHS compliance
SK 200E series frequency inverters or their options are designed to be RoHS
compliant according to Directive 2002/95/EEC

1 General information
BU 0280 GB Subject to technical amendments 11
1.5 Type code / Optional BUS modules
BUS = Bus module or I/O extension
SK TU4-DEV (-C-M12-WMK-TU)
Wall mounting kit:for external technologyunitsTU4
M12systemconnectors:only TU4, alternative to terminals
IPprotection class:Standard =IP55,C = “coated” IP66
Option type: CAO= CANopen, PBR = Profibus,
DEV = DeviceNet,IOE= I/O-Erweiterung
Option series: TU4 = external technology unit
CU4 =internal customer unit
(...)Options, only implemented if required.
Optional internal
technology unit, SK CU4-...
Optional external
technology unit, SK TU4-...

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1.6 Version with protection class IP55 / IP66
NORDAC SK 200E frequency inverters and the external additional modules are available in all sizes and
powers in the protection classes IP55 (standard) or IP66 (optional).
The protection class IP66 must always be included in the order when ordering!
There are no restrictions or differences to the scope of functions in either protection class. In order to
differentiate the protection classes, modules with protection class IP66 are given an extra “-C” (coated 
coated PCBs) in their type designation. e.g. SK TU4-DEV-C
IP55 version:
The IP55 version of the external technology units is the standard version. Both versions (inverter-mounted
– as an attachment to the frequency inverter or wall mounted on the wall bracket) are available.
IP66 design:
The IP66 design is a modified option compared to the IP55 design. With this design, both versions (inverter-
mounted or wall-mounted) are also available. The modules available for the IP66 version have the same
functionalities as the corresponding modules for the IP55 version.
NOTE
The modules for the IP66 design are identified by an additional "-C" and are modified
according to the following special measures!
Special measures:
Impregnated PCBs, painted housing
Diaphragm valve for pressure compensation on temperature changes.
Low pressure test
A free M12 screwed connection is required for low pressure testing. After successful
testing, a diaphragm valve is inserted here. This screw connection is therefore no longer
available for a cable gland.
NOTE
For all versions, care must be taken that the cable and the cable gland are carefully
matched. This is essential to ensure that the required protection class is maintained.

2 Assembly and installation
BU 0280 GB Subject to technical amendments 13
2 Assembly and installation
2.1 Installation and assembly
Internal and external technology modules designed for NORDAC SK 200E series are available for DeviceNet.
Except for the number of digital inputs and outputs, the functionalities of the various DeviceNet modules are
identical.
These are used to connect SK 200E series speed regulated drive units to overriding automation systems via
the DeviceNet field bus. Both the SK 200E frequency inverters and the external technology units are available
in the protection classes IP55 (standard) and IP66 (optional). The type designation of the SK 300E and the
modules in the protection class IP66 is given an additional code "-C" (coated →coated board) to differentiate the
IP55 and IP66 protection classes.
SK TI4-… with integrated technology
unit SK CU4-… SK 200E with external technology unit SK TU4-… and BUS connection module
SK TI4-TU-BUS
SK TIE4-WMK-TU with BUS connection
module SK TI4-TU-BUS and external
technology unit SK TU4-… or SK TU4-…-M12
The internal technology modules (Customer Unit, SK CU4-...) – designated as the customer unit – are
integrated into the connection unit of the SK 200E. The electrical connection to the SK 200E is made via the
internal system bus. The connection to external peripheral devices is made via screw terminals. The use of the
optionally available 4 or 5 pin M12 round plug connector, installed in the connection unit of the SK 200E,
provides a possible interface for connection to the field bus. A maximum of one customer interface (including
any 24V module) can be installed in the SK 200E frequency inverter.
Optional internal
customer unit, SK CU4-...

Supplementary Manual DeviceNet for NORDAC SK 200E
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The external technology modules (Technology Unit, SK TU4-...) – designated as the technology unit – are
externally attached to the SK 200E connection unit and are therefore easy to access. Mounting of the SK TU4-
... separate from the frequency inverter is possible by means of the optional wall mounting kit SK TIE4-WMK-
TU. The electrical connection to the SK 200E is made via the internal system bus. 4 or 5 pin M12 round plug
connectors (for installation in the BUS connection unit SK TI4-TU-BUS) are available as an option for
connection of the field bus cable. The external modules are also available as a version with integrated M12
round plug connectors (SK TU4-xxx-M12). These enable the connection of up to 4 digital inputs and 2 digital
outputs.
NOTE
Modules should not be inserted or removed unless the device is free of voltage. The slots
may only be used for the applicable modules.
Mounting of the external technology unit remote from the frequency inverter is possible
with the additional wall-mounting kit (SK TIE4-WMK-TU). However, a maximum cable
length of 30m should not be exceeded.
The external technology units (SK TU4-...(-M12) cannot be operated without the BUS
connection unit (SK T14-TU-BUS)!
NOTE
Only one technology unit (SK CU4... or SK TU4...) can be connected to a system bus.
Optional external
technology unit, SK TU4-...

2 Assembly and installation
BU 0280 GB Subject to technical amendments 15
2.1.1 Features of DeviceNet modules
Bus Module Description Data
DeviceNet module
SK CU4-DEV
Part No. 275271002 (IP20)
This option enables control of the NORDAC SK
200E via DeviceNet.
This option is integrated into the connection unit of
the frequency inverter.
Baud rate:
up to 500 kBaud
Connection:
16-terminal screw terminal bar
2x digital inputs:
Low: 0-5V, High: 11-30V
DeviceNet module*
SK TU4-DEV(-C)
Part No. 275281102 (IP55)
Part No. 275281152 (IP66)
This option enables control of the NORDAC SK
200E via DeviceNet.
This option is installed externally to the frequency
inverter.
According to the installation location, at least one
"BUS connection unit"* is required.
Baud rate:
up to 500 kBaud
Connection:
36 pin spring terminal bar of the
“BUS connection unit”*
4x digital inputs:
Low: 0-5V, High: 11-30V
2x Digital outputs:
0/24V
DeviceNet module with
M12*)
SK TU4-DEV-M12(-C)
Part No. 275281202 (IP55)
Part No. 275281252 (IP66)
This option enables control of the NORDAC SK
200E via DeviceNet.
This option is installed externally to the frequency
inverter.
According to the installation location, at least one
"BUS connection unit"* is required.
As for SK TU4-DEV(-C) but with
additional:
6x M12 sockets for the
connection of up to 4 sensors
and 2 actuators via 5 pin M12
round plug connectors (B coded)
Connection unit for TU4
SK TI4-TU-BUS
Part No. 275280000 (IP55)
Part No. 275280500 (IP66)
The connection unit is always required in order to
use an external technology unit (SK TU4...). This
implements the connection of the technology unit to
the SK 200E or the wall-mounting kit.
Connection:
36 pin spring terminal bar
36x 2.5mm2
AWG 26-14
spring terminals
TU4 wall-mounting kit
SK TIE4-WMK-TU
Part. No. 275274002
With the wall mounting kit, a technology unit can be
used/installed separately from the SK 200E.
*) in order to use the TU4 modules, a suitable SK TI4-TU-BUS connection unit must always be available!

Supplementary Manual DeviceNet for NORDAC SK 200E
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2.1.2 Installation of the Customer Unit SK CU4-DEV
WARNING
Installation must be carried out by qualified personnel only, paying particular attention to
safety and warning instructions.
Modules must not be inserted or removed unless the device is free of voltage. The slots
may only be used for the applicable modules.
Installation of the SK CU4... customer unit remote from the frequency inverter is not
permitted. This must be installed in the immediate vicinity of the SK 200E frequency
inverter.
The installation of customer units is carried out in the connection unit SK T14… SK 200E underneath the
control terminal bar. Fastening is by means of the terminal bar of the frequency inverter and two M4x20 screws
(bag enclosed with the customer unit). Only one customer unit per FI is possible!
The pre-assembled cables for connection to the frequency inverter (SK 200E) are also included in the bag
enclosed with the customer unit. Connections are made according to the following table:
SK TI4-… with integrated customer unit SK CU4-DEV Internal customer unit SK CU4-DEV Bag enclosed with internal customer unit
Function Terminal label Cable colour
Power supply
(between frequency inverter and customer unit)
44 24V brown
40 GND blue
System bus 77 SYS+ black
78 SYS- grey
NOTE
Set the termination resistors of the system bus!
See Section 2.2.3 “Configuration”

2 Assembly and installation
BU 0280 GB Subject to technical amendments 17
2.1.3 Installing the SK TU4-DEV-… Technology Unit
WARNING
Installation must be carried out by qualified personnel only, paying particular attention to
safety and warning instructions.
Modules must not be installed or removed unless the device is free of voltage. The slots
may only be used for the applicable modules.
Mounting of the external technology unit remote from the frequency inverter is possible
with the additional wall-mounting kit (SK TIE4-WMK-TU).
Together with the BUS connection unit SK TI4-TU-BUS(-C) the technology unit SK TU4-DEV-…(-C) forms a
stand-alone functional unit. This can be attached to the SK 200E frequency inverter or installed separately by
means of the optional SK TIE4-WMK-TU wall-mounting kit.
2.1.3.1 Dimensions of the SK TI4-WMK-TU wall-mounting kit
The optional wall-mounting kit has the following dimensions.
2.1.3.2 BUS connection unit SK TI4-TU-BUS(-C)
Various cable glands closed by caps are located on the sides of the BUS
connection unit.
The following holes are available as cable inlets:
2 x 1 M20 x 1.5 (on sides)
4 M20 x 1.5 (underside)
2 M25 x 1.5 (rear side, without caps)
The transparent screw-on cover (M20 x 1.5) on the upper right serves as access to the diagnostic interface
(RJ12 socket, interface RS232/RS485). The upper left screw-on cover is not used.
136
58
External BUS connection unit = SK TI4-
TU-BUS

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2.1.3.3 Mounting the SK T14-TU-BUS on the SK 200E
The screw fittings and seals required for installation are enclosed with the modules or are fitted to the intended
locations.
Mounting of the technology unit on the SK 200E
must be carried out as follows:
1. Switch off the mains.
2. Remove the two M25 caps on the required side
of the frequency inverter (right / left).
3. Remove the printed circuit board (with terminal
bar) from the BUS connection unit.
4. Install the SK TI4-TU-BUS (with adhered seal)
on the SK 200E using the 4 enclosed bolts.
5. Replace the printed circuit board (See point 3)
and carry out the electrical connections.
6. Fit and screw on the SK TU4 module.
2.1.3.4 Wall mounting the SK TI4-TU-BUS
The screw fittings (except for anchoring screws) and
seals required for installation are enclosed with the
modules or are fitted to the intended locations.
The connecting cable between the technology unit
and the SK 200E should not be longer than 30m.
1. Mount the SK TI4-TU-BUS connecting unit with
adhered seal on the wall-mounting kit. To do this:
Insert the 2 x cheese-head screws (enclosed
with wall-mounting kit) into the (countersunk)
holes from the outside and with the 2 x bolts
(enclosed with the wall-mounting kit) securely
screw both components together from the inside
(BUS connection unit).
2. Make a suitable cable connection between the technology unit and the frequency inverter. Take care that
there is appropriate screw fitting and sealing of the modules. The cable sets enclosed with the BUS
connection unit are not used.
3. Fit and screw on the SK TU4 module.
Technology unit SK TU4-DEV (-M12) BUS connection unit SK TI4-TU-BUS
Mounting the external technology unit on the SK 200E
SK TI4-WMK-TU wall-mounting kit
Wall-mounting kit SK TI4 WMK TU with field bus technology unit

2 Assembly and installation
BU 0280 GB Subject to technical amendments 19
2.2 Electrical connection
WARNING THE DEVICES MUST BE EARTHED.
Safe operation of the devices presupposes that qualified personnel install and commission it in
compliance with the instructions provided in these operating instructions.
In particular, the general and regional mounting and safety regulations for work on high voltage
systems (e.g. VDE) must be complied with as must the regulations concerning professional use of
tools and the use of personal protection equipment.
Dangerous voltages can be present at the motor connection terminals of the frequency inverter
even when the inverter is switched off. Always use insulated screwdrivers on these terminal fields.
Ensure that the input voltage source is not live before setting up or changing connections to the
unit.
Make sure that the inverter and motor are specified for the correct supply voltage.
2.2.1 Cable glands
Both the SK 200E connection unit and the bus module provide extensive facilities for the connection of all the
required cables. The cables may enter the housing via cable glands and be connected to the terminal bar.
However, appropriate round plug connections (e.g.: M12 round plug connectors in M16 cable glands) may be
fitted in order to provide a plug-in solution.
Outgoing cable, fixed
connection e.g. for system
bus or 24V supply
Incoming cable, fixed
connection e.g. for system
bus or 24V supply
Cable gland for system bus cable pair and
24V supply for direct attachment to SK 200E
No function,
do not use Diagnostic access RJ 12 socket
Cable gland for system bus cable pair and
24V supply for direct attachment to SK 200E
M16 cable gland or installation of M12 round plug connection for:
incoming and outgoing DeviceNet cables
24V and 24V (for DO) supply
System bus
I/O peripherals: Sensors and actuators Example:
Cable glands for BUS connection unit
SK TI4-TU-BUS

Supplementary Manual DeviceNet for NORDAC SK 200E
20 Subject to technical amendments BU 0280 GB
2.2.2 Control connections
The DeviceNet modules must be provided with one or two 24V DC (±20%, total current consumption 100mA)
control voltages. Wire end sleeves must be used for flexible cables.
Designation Data
Rigid cable cross-section 0.14 … 2.5mm²
Flexible cable cross-section 0.14 … 1.5mm²
AWG standard AWG 26-14
Tightening torque (for screw terminals) 0.5…0.6Nm
Within the terminal box (unshielded cable section) the data cables (e.g. DeviceNet, system bus) must be
installed as short as possible and of equal length. Associated data cables (e.g.: Sys+ and Sys-) must be
twisted.
NOTE
In the customer unit, the DeviceNet is already installed with voltage isolation from the other
signal connections.
In case of EMC problems, voltage separation of the field bus supply, the digital inputs and
system bus interface and for the external technology unit also for the two additional digital
outputs should be provided.
NOTE
The cable shielding must be connected to the functional earthing1(usually the
electrically conducting mounting plate) in order to prevent EMC interference in the
device.
In order to achieve this, for DeviceNet connections it is mandatory that the metallic metric
EMC screws are used for the connection of the DeviceNet shielding lead to the frequency
inverter or the housing of the technology unit. This ensures a wide area connection of the
functional earthing.
1In systems, electrical equipment is usually connected to a functional earth. This serves as a means to dissipate leakage
and interference currents in order to ensure EMC characteristics and must therefore be implemented according to high
frequency technology aspects.