NORD BU0220 User Manual

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Page 1

PROFIBUS DP – Zusatzanleitung für NORD Frequenzumrichter SK 200E Safety information

BU 0220

PROFIBUS DP – Supplementary manual

for NORD Frequency Inverter SK 200E

BU 0220 GB-0912 1

Page 2

PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE Safety information

2 BU 0220 GB-0912

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PROFIBUS DP – Zusatzanleitung für NORD Frequenzumrichter SK 200E Safety information

NORD frequency inverters

Safety and operating instructions for drive power converters

(as per: Low Voltage Directive 2006/95/EEC )

1. General During operation, drive power converters may, depending on their

protection class, have live, bare, moving or rotating parts or hot surfaces.

Unauthorised removal of covers, improper use, incorrect installation or operation causes a risk of serious personal injury or material damage.

Further information can be found in this documentation. All transportation, installation, initialisation and maintenance work

must be carried out by qualified personnel (compliant with IEC 364, CENELEC HD 384, DIN VDE 0100, IEC 664 or 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 assembly, 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 installed in machines, the drive power converter cannot be commissioned (i.e. commencement of the proper use) until it has been ensured that the machine meets the provisions of the EC Directive 2006/42/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 (2004/108/EEC) is complied with.

CE-labelled drive power converters meet the requirements of the Low Voltage Directive 2006/95/EEC. The harmonised standards for drive power converters listed in the declaration of conformity are used.

Technical data and information for connection conditions can be found on the rating plate and in the documentation, and must be complied with.

The drive power converters may only be used for safety functions which are described and explicitly approved.

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, which 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 A3, formerly VBG 4).

The electrical installation must be implemented according to 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 limiting values specified in the EMC regulations is the responsibility of the manufacturer of the system or machine.

6. operation

Where necessary, systems where drive power converters are installed must be equipped with additional monitoring and protective equipment according to the applicable safety requirements, e.g. legislation concerning technical equipment, accident prevention regulations, etc.

The parameterisation and configuration of the drive power converter must be selected so that no hazards can occur.

All covers must be kept closed during operation.

7. Maintenance and repairs

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. Observe the applicable information signs located on the drive power converter.

Further information can be found in this documentation.

These safety instructions must be kept in a safe place!

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE About this document

Designation of previous versions

Software Version

Remarks

BU 0220 DE, June 2009 Part No. 607 2201 / 2609

V 1.1 R1

First issue

BU 0220 GB, February 2012 Part No. 607 2201 / 0912

V 1.2 R0

The bus module also recognises the SK 54xE, Firmware update also possible via the CAN system bus, Error corrections (e.g. connection via the Profibus data

cables PBA / PBB) Supplements to Section 7.2.1.7 and 7.2.1.8 (assignment of

functions BIT 8/9 STW or BIT 10/13 ZSW Parameters (P153) and (P154) supplemented

NOTE

This supplementary operating manual is only valid in conjunction with the operating manual supplied for the respective frequency inverter.

Documentation

Designation: BU 0220 GB Part No.: 607 22 01 Device series: PROFIBUS DP for SK 2xxE Device types: SK CU4-PBR

SK TU4-PBR(-C) with SK TI4-TU-BUS SK TU4-PBR-M12(-C) with SK TI4-TU-BUS

Version list

Publisher

Getriebebau NORD GmbH & Co. KG

Rudolf- Diesel- Str. 1  D-22941 Bargteheide  Germany  http://www.nord.com/ Tel.: +49 (0) 45 32 / 401-0  Fax +49 (0) 45 32 / 401-555

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE zu diesem Dokument

Intended use of the frequency inverter

The compliance with the operating instructions is necessary for fault-free operation and the acceptance of possible warranty claims. These operating instructions must be read before working with the device!

These operating instructions contain important information about servicing. 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. The SK 5xxE can only be used with other series by means of SK TU4-... Technology Units. 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 details 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 204/108/EEC and that the conformity of the end product meets the machine directive 2006/42/EEC (note EN 60204).

 Getriebebau NORD GmbH & Co. KG, 2012

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

1 GENERAL INFORMATION ...................................................................................................... 8

1.1 Overview .............................................................................................................. 9

1.2 Delivery ................................................................................................................ 9

1.3 Scope of supply ................................................................................................. 10

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 Overview of the PROFIBUS DP modules ............................................................... 15

2.1.2 Installing the Customer Unit SK CU4-PBR ............................................................. 16

2.1.3 Installing the SK TU4-PBR-… technology unit ........................................................ 17

2.2 Electrical connection .......................................................................................... 19

2.2.1 Cable gland............................................................................................................. 19

2.2.2 Control connections ................................................................................................ 20

2.2.3 Configuration .......................................................................................................... 27

3 DISPLAYS AND DIAGNOSIS................................................................................................ 29

3.1 LED displays ...................................................................................................... 29

3.1.1 Device-specific display versions ............................................................................. 29

3.1.2 Signal status LEDs ................................................................................................. 31

3.2 RJ12 Diagnostic socket ..................................................................................... 34

4 COMMISSIONING .................................................................................................................. 36

4.1 GSD file ............................................................................................................. 36

4.2 Hardware configuration: Configuration of the PROFIBUS DP Technology Unit 36

4.2.1 DP slave slot assignment ....................................................................................... 37

4.2.2 Definition of PPO types ........................................................................................... 38

4.2.3 Timeout monitoring ................................................................................................. 40

5 PARAMETERISATION .......................................................................................................... 41

5.1 Parameterisation of frequency inverter SK 200E .............................................. 41

5.1.1 Basic parameters (P100) ........................................................................................ 41

5.1.2 Control clamp parameter (P400) ............................................................................. 42

5.1.3 Supplementary parameters (P500) ......................................................................... 44

5.1.4 Information parameters (P700) ............................................................................... 48

5.2 Parameterisation of the bus module (SK CU4-… or SK TU4-…) ...................... 50

5.2.1 BUS module standard parameters (P150) .............................................................. 50

5.2.2 BUS module information parameters, general (P170) ............................................ 51

5.2.3 Module information parameters specific to the bus (P180) ..................................... 54

6 ERROR MONITORING AND ERROR MESSAGES .............................................................. 55

6.1 Error monitoring ................................................................................................. 55

6.2 Error messages ................................................................................................. 56

6.2.1 Table of possible error messages (caused by the bus) in the frequency inverter ... 56

6.2.2 Table of possible error messages in the bus module .............................................. 57

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Table of Contents

7 PROFIBUS DP DATA TRANSFER ........................................................................................ 58

7.1 Structure of reference data ................................................................................. 58

7.2 PROFIBUS DP PPO types ................................................................................. 59

7.2.1 Process data (PZD)................................................................................................. 60

7.2.2 The status machine ................................................................................................. 66

7.2.3 Parameter area (Parameter code value PKW) ........................................................ 68

7.3 Example telegrams ............................................................................................. 72

7.3.1 Switch-on disabled → Standby ............................................................................... 72

7.3.2 Enable with 50% setpoint ........................................................................................ 74

7.3.3 Writing a parameter................................................................................................. 75

8 ADDITIONAL INFORMATION ................................................................................................ 76

8.1 Bus Configuration ............................................................................................... 76

8.1.1 Laying the PROFIBUS DP cable ............................................................................. 76

8.1.2 Cable material ......................................................................................................... 76

8.1.3 Cable layout and shielding (EMC measures) .......................................................... 77

8.1.4 Recommendations of the PROFIBUS users´ association ....................................... 78

8.2 Cable glands and shielding connections ............................................................ 79

8.2.1 Fixed connection (cable gland) ............................................................................... 79

8.2.2 Connection with M12 round plug connectors .......................................................... 80

8.2.3 Round plug connectors ........................................................................................... 80

8.3 PROFIBUS DP technology and protocol ............................................................ 84

8.3.1 Overview /Protocol architecture .............................................................................. 84

8.3.2 Device types ........................................................................................................... 85

8.3.3 Performance levels ................................................................................................. 87

8.3.4 Terminology (selection) ........................................................................................... 88

8.4 System bus ......................................................................................................... 94

8.5 Repairs ............................................................................................................... 95

9 INDEX ...................................................................................................................................... 96

10 KEYWORD INDEX ................................................................................................................ 98

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

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 PROFIBUS DP documentation contains supplementary descriptions concerning the PROFIBUS DP options for the SK 200E frequency inverter series.

The description of other optional modules (e.g. CANopen) is dealt with in other supplementary documentation. In order to set up communication with PROFIBUS DP, either an internal Customer Unit or an external

PROFIBUS DP Technology Unit (according to the particular application) must be installed and connected.

The PROFIBUS DP bus system A large number of different automation devices can exchange data with frequency inverters using

PROFIBUS DP. PLC's, PC's, operating and monitoring devices can all communicate via a uniform bus in serial bit mode. PROFIBUS DP is primarily used for communication between sensor and actuator where system response needs to be very fast. PROFIBUS DP is used where the time for rapid and complex communication between the individual devices is critical. PROFIBUS DP is a suitable alternative to expensive 24-volt parallel signal transmission and transmission of measured values. This type of PROFIBUS, which is optimised to speed, is used for instance for operating frequency inverters on automation devices.

PROFIBUS communication is standardised and specified in the international standards IEC 61158 and IEC 61784. Application and planning aspects are specified and documented in the guidelines of the PROFIBUS users´ organisation (PNO). This ensures intercommunication between devices from different manufacturers. Data exchange is specified in DIN 19245 Part 1 and 2 and application-specific upgrades in Part 3 of this standard. Within the European field bus standardisation process, PROFIBUS is integrated into the European field bus standard EN 50170.

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1 General information

1.1 Overview

Features of the PROFIBUS DP modules

 Electrically isolated bus interface  Transfer rate: 12Mbit/s  Easy connection, optionally via M12 round plugs or screw terminals  Looping of the PROFIBUS DP via the module  Integrated bus terminating resistor (switchable)  PROFIBUS DP-specific status indication with 2 LEDs on the internal (Customer Unit) and external

(Technology Unit) technology option

 DEVICE or FI-specific status indication with 2 LEDs on the internal (Customer Unit) and external

(Technology Unit) technology option

 PROFIBUS DP basic functionality as per DP-V0  Acyclic data traffic as per DP-V1  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-PBR-M12(-C) version. Visualisation of signal status via LEDs

 Transmission and reading of process and parameter data  PROFIBUS DP Gateway solution → up to 4 frequency inverters can be connected to a

PROFIBUS DP module

 Up to 122 PROFIBUS DP modules can be connected to the bus. This enables the operation of up to

488 frequency inverters on one bus.

 Automatic detection of baud rate and PPO type by the PROFIBUS DP module  "Simultaneous" access by up to 4 PROFIBUS DP masters (1 x DPM1 and up to 3 x DPM2) possible.

The DPM2 masters do not need to be permanently connected to the PROFIBUS DP network for communication.

 Interface (RS232/RS485) for parameter access by means of the SK PAR-3H manual control unit or

NORDCON software via RJ12 connector (Except for SK CU4-PBR. Here parameter access via the SK 2xxE 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 carry out a thorough assessment.

Important! This also applies even if the packaging is undamaged.

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

1.3 Scope of supply

Standard version: SK CU4-PBR IP20 or SK TU4-PBR(-M12)(-C) IP55 (optionally IP66) Operating instructions as PDF file on CD ROM

including NORDCON, (Windows PC-based parameterisation software)

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 (Section 8.2 "Cable glands and shielding connections") Matching RJ12 to SUB-D9 adapter cable to connection to a PC ParameterBox: SK PAR-3H, ParameterBox, plain text LCD display

1.4 Certifications

1.4.1 European EMC Directive

If the SK 2xxE frequency inverter 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. (see also Section 8.1.3 "Cable layout and shielding (EMC measures)")

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

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1.5 Type code / Optional BUS modules

SK TU4-PBR (-C-M12-WMK-TU)

Wall mounting kit: for external technology unit, TU4 M12 system connector: only TU4, alternative to terminals IP protection class: Standard = IP55, C = "coated" IP66 Option type: CAO = CANopen, PBR = Profibus,

DEV = DeviceNet, IOE = I/O extension Option series: TU4 = external technology unit CU4 = internal customer unit

(...) Options, only implemented if required.

Optional internal

customer unit, SK CU4-…

Optional external

technology unit, SK TU4-…

BUS = Bus module or I/O extension

1 General information

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

NOTE

The modules for the IP66 design are identified by an additional "-C" and are modified according to the following special measures!

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.

1.6 Version with protection class IP55 / IP66

The SK 2xxE frequency inverter and the external additional modules are available with protection classes IP55 (Standard) or IP66 (optional) and in all sizes and power ratings.

The protection class IP66 must always be stated 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-PBR-C

IP55 version: The IP55 version of the external technology units is the standard version. Both versions (inverter-mounted –

as a supplement to the frequency inverter or wall mounted on the wall bracket) are available.

IP66 version: In contrast to the IP55 version the IP66 version is a modified option. With this design, both versions

(inverter-mounted or wall-mounted) are also available. The modules available for the IP66 version (adapter units, technology units and customer units) have the same functionalities as the corresponding modules for the IP55 version.

Special measures:

Impregnated PCBs, coated housing Diaphragm valve for pressure compensation on temperature changes. Low pressure test

 A free M12 screw 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.

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2 Assembly and installation

SK TI4-… with integrated technology unit

SK CU4-…

SK 200E with external technology unit SK TU4-...

and BUS connection module SK T14-TU-BUS

SK TIE4-WMK-TU

with BUS connection module SK T14-TU-BUS and

external technology unit SK TU4-... or SK TU4-...-M12

Optional internal

customer units, SK CU4-…

2 Assembly and installation

2.1 Installation and assembly

Internal and external technology modules designed for the SK 2xxE frequency inverter series are available for PROFIBUS DP. Except for the number of digital inputs and outputs, the functionalities of the various PROFIBUS modules are identical.

These are used to connect SK 200E series speed regulated drive units to overriding automation systems via the PROFIBUS DP field bus.

The internal technology modules (Customer Unit, SK CU4-...) – designated as the customer unit – are integrated into the connection unit of the SK 2xxE. Electrical connection to the SK 2xxE 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 2xxE, 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 2xxE frequency inverter.

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

NOTE

Modules should not be inserted or removed unless the device is free of voltage. The slots may only be used for the intended 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 field bus module (e.g. SK CU4-PBR or. SK TU4-PBR) can be connected to a single system bus.

Optional external

technology unit, SK TU4-…

The external technology modules (Technology Unit, SK TU4-...) – designated as the technology unit – are externally attached to the SK 2xxE connection unit and are therefore easy to access. Mounting of the SK TU4-... separate from the frequency inverter is possible by means of the wall mounting kit SK TIE4-WMK-TU. Electrical connection to the SK 2xxE 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.

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2.1.1 Overview of the PROFIBUS DP modules

Bus Module

Description

Data

Profibus module

SK CU4-PBR

Part No. 275271000 (IP20)

This option enables control of the SK 2xxE via PROFIBUS DP.

This option is integrated into the connection unit of the frequency inverter.

Protocol: DP-V0 (cyclical data traffic) DP-V1 (acyclic data traffic) Baud rate: up to 12 MBaud Connection: 16-terminal screw terminal bar 2x digital inputs: Low: 0-5V, High: 11-30V System bus

Profibus module *)

SK TU4-PBR(-C)

Part No. 275281100 (IP55) Part No. 275281150 (IP66)

This option enables control of the SK 2xxE via PROFIBUS DP.

This option is installed externally to the frequency inverter.

According to the installation location, at least one "BUS connection unit"* is required.

Protocol: DP-V0 (cyclical data traffic) DP-V1 (acyclic data traffic) Baud rate: up to 12 MBaud 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 System bus

Profibus module with M12 *)

SK TU4-PBR-M12(-C)

Part No. 275281200 (IP55) Part No. 275281250 (IP66)

This option enables control of the SK 2xxE via PROFIBUS DP.

This option is installed externally to the frequency inverter.

According to the installation location, at least one "BUS connection unit"* is required.

As SK TU4-PBR, but with: 6x M12 socket for the connection

of up to 4 sensors and 2 actuators via 5 pin M12 round plug connectors (A 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 mechanical and electrical connection of the Technology Unit to the SK 2xxE 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 2xxE.

in order to use the TU4 modules, a suitable SK TI4-TU-BUS connection unit must always be available!

2 Assembly and installation

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

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 intended modules.

Installation of the SK CU4-... customer unit remote from the frequency inverter is not permitted. This must be mounted directly in the connection unit of the SK 2xxE frequency inverter.

SK TI4-… with integrated technology unit

SK CU4-PBR

internal customer unit SK CU4-PBR

Bag enclosed with internal customer unit

Function

Terminal label

Cable colour

Power supply

(between frequency inverter and customer unit)

24V

brown

GND

blue

System bus

SYS+

black

SYS-

grey

NOTE

Set the termination resistors of the system bus!

see Section 2.2.3 "Configuration")

2.1.2 Installing the Customer Unit SK CU4-PBR

The installation of customer units is carried out in the connection unit SK T14-…of the SK 2xxE 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 2xxE) are also included in the bag enclosed with the customer unit. Connections are made according to the following table:

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2 Assembly and installation

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 intended modules.

Mounting of the external technology unit remote from the frequency inverter is possible with the

additional wall-mounting kit (SK TIE4-WMK-TU).

NOTE

The IP protection class is not complied with if the screw connections are not connected properly. In this case, the module may be damaged by the entry of dirt or moisture.

136

Flan

External BUS connection unit =

SK TI4-TU-BUS

2.1.3 Installing the SK TU4-PBR-… technology unit

Together with the BUS connection unit SK TI4-TU-BUS(-C) the technology unit SK TU4-PBR-…(-C) forms a stand-alone functional unit. This can be attached to the SK 2xxE 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 T14-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 M16 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 top left screw connection is a blank screw cap.

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

Mounting the external technology unit on the SK 200E

Technology unit SK TU4-PBR (-M12) BUS connection unit SK T14-TU-BUS

Bus Technology Unit with wall-mounting kit

2.1.3.3 Mounting the SK TI4-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 T14TUBUS (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 2xxE should not be longer than 30m.

1. Mount the SK T14-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.

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2 Assembly and installation

WARNING

THE DEVICES MUST BE EARTHED. Safe operation of the devices requires that is installed and commissioned by qualified personnel

in compliance with the instructions provided in this Manual. In particular, the general and regional installation and safety regulations for work on high voltage

systems (e.g. VDE) must be complied with as must the regulations concerning correct 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.

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 PROFIBUS DP cable  24V and 24V (for DO) supply  System bus  I/O peripherals: sensors and actuators

2.2 Electrical connection

2.2.1 Cable gland

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.

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

Name

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

NOTE

The PROFIBUS DP is already installed in the customer unit 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 earthing 1 (usually the electrically conducting mounting plate) in order to prevent EMC interference in the device.

In order to achieve this, for PROFIBUS DP connections it is mandatory that the metallic metric EMC screws are used for the connection of the PROFIBUS DP shielding lead to the frequency inverter or the housing of the technology unit. This ensures a wide area connection of the functional earthing.

2.2.2 Control connections

The PROFIBUS DP modules must be provided with a 24V DC (±20%, 100mA) control voltage. Wire end sleeves must be used for flexible cables.

Within the terminal box (unshielded cable section) the data cables (e.g. PROFIBUS DP, system bus) must be installed as short as possible and of equal length. Associated data cables (e.g.: Sys+ and Sys-) must be twisted.

In 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.

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2.2.2.1 Control connections SK CU4-PBR

NOTE

Looping of the 24V supply voltage (terminals 40/44) is possible, however a maximum current load of 2A for the SK CU4-PBR must not be exceeded.

PBR A

PBR B

PBR A

PBR B

Sys+

Sys-

GND B

VP +5V

Incoming PROFIBUS DP cable

Outgoing PROFIBUS DP cable

Connection of the 24V power supply from the SK 2xxE

System bus connection from the SK 2xxE

Potential level: System bus

Potential level: Field bus

24V

GND

Connection to the

terminal block of the SK CU4-PBR

SK CU4-

SK 2xxE-

The terminal bar of the customer unit SK CU4-PBR is divided into two potential levels.

2 Assembly and installation

Connection of up to 2 sensors is made on the terminal bar (terminals C1 and C2).

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

Terminal/ Name

Function

Data

Description / wiring suggestion

Parameter

44 24V

24V supply

(Module, field and system bus level)

24VDC ±20% ≈ 90mA

reverse polarity protected max. permissible current

load: 2A

Connection of supply voltage for module and 24V source for supply of the digital inputs (DIN1 and DIN2)

40 GND / 0V

Reference potential for digital signals

C1 DIN1

Digital input 1

(I/O PROFIBUS DP DIN1)

Low 0V ... 5V High 15V ... 30V Ri = 8.1k Input capacitance 10nF Scan rate 1 ms

Each digital input has a reaction time of 1ms.

Inputs as per EN 61131-2 Type 1 P174

C2 DIN2

Digital input 2

(I/O PROFIBUS DP DIN2)

P174

77 Sys H

System bus data cable +

System bus interface

78 Sys L

System bus data cable -

40 GND / 0V

Reference potential for digital signals

24VDC ±20% ≈ 90mA

reverse polarity protected max. permissible current

load: 2A

Connection of supply voltage for module and 24V source for supply of the digital inputs (DIN1 and DIN2)

44 24V

24V supply

(Module, field and system bus level)

Potential isolation

82 PBR B

(incoming)

Bus + (red lead)

RxD/TxD-P

RS485 transfer

The use of twisted, shielded twoconductor cable / Type A Profibus cable is highly recommended

81 PBR A

(incoming)

Bus (green lead)

RxD/TxD-N

46 GND/ 0V BUS

Data ground bus

83 RTS

Ready to send

47 VO/ 5V BUS

+5V bus supply voltage

Internal Profibus voltage supply

Note: Must not be used externally!

82 PBR B

(outgoing)

Bus (red lead)

RxD/TxD-P

RS485 transfer

The use of twisted, shielded twoconductor cable / Type A Profibus cable is highly recommended

81 PBR A

(outgoing)

Bus (green lead)

RxD/TxD-N

46 GND/ 0V BUS

Data ground bus

Control connection details

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2 Assembly and installation

Field bus level PROFIBUS DP

System bus level and digital inputs

Digital outputs

24V

PB B

PB A

0V-B

RTS

24V

(as 1)

24V

(as 1)

GND

DIN 1

GND

24V

(as 1)

DIN 2

GND

24V

(as 1)

24V 2

DO 1

0V 2

1 3 5 7 9

35 2 4 6 8

24V

(as 1)

PB B OUT

PB A

OUT

0V-B

(as 8)

+5V B 24V

(as 1)

Sys +

Sys -

GND

DIN 3

GND

24V

(as 1)

DIN 4

GND

24V

(as 1)

0V 2

DO 2

0V 2

SK 205E…-Connection unit (SK TI4…)

SK TU4-PBR…-Connection unit (SK TI4-TU-BUS)

Voltage Source

24V DC

PROFIBUS Subscriber

X-1

PROFIBUS Subscriber

X+1

Terminal block of the bus Adapter Unit SK TI4-TU-BUS and assignment of functions

Potential level: Field bus

Potential level: System bus

Potential level: DOs

2.2.2.2 Control connections of the SK TU4-PBR(-...)

The double spring-loaded terminal bar of the bus connection unit is colour coded, and therefore indicates the three different potential levels.

Terminals 1 and 2 have the same potential as the 24V terminals of the system bus level (e.g. Terminal 11). However, electrical connection between these terminals is only implemented by mounting the bus module onto the bus connection unit. Terminals 1 and 2 must only be used to supply sensors. Looping of a 24V supply must not be performed via these terminals (1 and 2).

A separate power source can be used for the supply of the DOs. However, it is possible to implement the supply of the DOs by bridging 24V 2 and 0V 2 to one of the terminals of the system bus level (24V and 0V). However, in this case it should be noted that there is an increased risk of introducing interference into the bus cables.

Connection of the sensors and actuators is made via the terminal bar. Alternatively, the SK TU4-PBR-M12 enables the connection of the digital I/Os via the M12 round plug connector (5 pin socket, A-coded) mounted on the front.

Double use of the inputs via the terminal bar and the M12 round plug connector must be avoided.

Connection example: SK TU4-PBR to SK 205E

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

NOTE

The data cables (Terminals 3/4 or Terminals 5/6) or the Terminals 1 and 2 to Terminal 11 are only contacted by mounting the bus module.

NOTE

Looping of the 24V supply voltage or GND is possible (except for Terminals 1 and 2), however a maximum current load of 3A for the SK TU4-PBR(-…) must not be exceeded.

Only adjacent terminals (e.g.: X5:11/12) may be used for looping. Terminals 1/2 are preferentially for use with sensors and maximum loads of 500mA.

Wiring of the M12-plug connector to SK TU4-…-M12

Coupling detail

Pin numbering

Details of the M12 connections of the SK TU4-…-M12

The special wiring of the M12 round plug connector enables the connection of both single and double sensors, which are equipped with normal M12 system connectors in the standard sensor/actuator configuration.

With the use of M12 round plug connectors, the terminal bar connectors for the digital inputs (Terminals 19, 20, 25, 26) must not be used.

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Control connection details

Terminal/ Name

Function

Data

Description / wiring suggestion

Parameter

1 24V

24V supply

(Module, field and system bus level)

24VDC ±20% ≈ 90 mA

reverse polarity protected

Max. permissible current load: 500mA

Connection of the sensor supply voltage

via DC/DC converter to Terminal

11.

Potential isolation

3 PB B

(incoming)

(outgoing)

PBR B Bus + (red lead)

RxD/TxD-N

RS485 transfer

The use of twisted, shielded twoconductor cable / Type A Profibus cable is highly recommended

5 PB A

(incoming)

(outgoing)

PBR A Bus - (green lead)

RxD/TxD-P

7 0V-B

Data ground bus

Reference potential for internal Profibus voltage supply

9 RTS

Ready to send

10 5V B

5V bus supply voltage

Internal Profibus voltage supply

Note: Must not be used externally!

Potential isolation

11 24V

24V supply

(Module, field and system bus level)

As for terminal 1 However, max.

permissible current load: 3A

Connection of supply voltage for module and 24V source for supply of the digital inputs (DIN1 to DIN4)

15 0V

GND Reference potential for digital signals

14 Sys +

System bus data cable +

System bus interface

16 Sys -

System bus data cable -

19 DIN1

Digital input 1

(I/O Profibus DIN1)

Low 0V ... 5V High 15V ... 30V Ri = 8.1k

Input capacitance 10nF Scan rate 1 ms

Inputs as per EN 61131-2 Type 1

Each digital input has a reaction time of 1ms.

P174

20 DIN3

Digital input 3

(I/O Profibus DIN3)

P174

2 Assembly and installation

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

Terminal/ Name

Function

Data

Description / wiring suggestion

Parameter

21 0V

GND Reference potential for digital signals

As for terminal 15

Connection of supply voltage for module and 24V source for supply of the digital inputs (DIN1 to DIN4)

23 24V

24V supply

(Module, field and system bus level)

As for terminal 1 However, max.

permissible current load: 3A

25 DIN2

Digital input 2

(I/O Profibus DIN2)

Low 0V ... 5V High 15V ... 30V Ri = 8.1k

Input capacitance 10nF Scan rate 1 ms

Inputs as per EN 61131-2 Type 1

Each digital input has a reaction time of 1ms.

P174

26 DIN4

Digital input 4

(I/O Profibus DIN4)

P174

27 0V

GND Reference potential for digital signals

As for terminal 15

Connection of supply voltage for module and 24V source for supply of the digital inputs (DIN1 to DIN4)

29 24V

24V supply

(Module, field and system bus level)

As for terminal 1 However, max.

permissible current load: 3A

Potential isolation

31 24V2

24V supply of digital outputs

24VDC -/+20% Up to 1A, according to

load reverse polarity protected

Supply voltage connection for digital outputs (DO1 and DO2)

If necessary, bridge to 24V terminal

32 0V2

GND 2 Reference potential for digital outputs

Ground for digital outputs (DO1 and DO2)

If necessary, bridge to 0V terminal

33 DO1

Digital output 1

(I/O Profibus DO1)

Low = 0V High: 24V

Rated current: 500mA each

The digital outputs should be used with a separate 24V supply

P175

34 DO2

Digital output 2

(I/O Profibus DO2)

P175

35 0V2

GND 2 Reference potential for digital outputs

Ground for digital outputs (DO1 and DO2)

If necessary, bridge to 0V terminal

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2 Assembly and installation

E.g.: SK CU4-PBR

E.g.: SK 200E

PROFIBUS DP module (view of DIP switch)

SK 200E (internal view)

System bus

termination resistor

Field bus (PROFIBUS DP) termination resistor

System bus termination resistor

Customer unit SK CU4-PBR

Technology unit SK TU4-PBR

DIP switch 3 + 8 part

BUS termination

2.2.3 Configuration

The configuration for all PROFIBUS DP module versions is identical. All necessary settings are made using the hardware via a DIP switch element (3+8 part switching block).

Addressing

Note:

 PROFIBUS DP - Address: Setting only via DIP switch in binary code  Permissible address range: 3 … 125 → other addresses result in an error message  Address changes: only become effective after switching the BUS module off and

on again

Termination resistor

The termination of the BUS system is made for the first and last participants by connecting the relevant termination resistors (DIP switch).

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

NOTE

For the termination of the PROFIBUS DP both termination resistors "PB Term" must be set to

"ON".

Area

Meaning

DIP Switch

ON - OFF

Configuration

example

Addressing

No significance

Address bit 6

26 = 64 0

Address bit 5

25 = 32 0

Address bit 4

24 = 16 0

Address bit 3

23 = 8 8

Address bit 2

22 = 4 4

Address bit 1

21 = 2 2

Address bit 0

20 = 1 0

Example address:

BUS

termination

PB Term.

OFF *

PB Term.

OFF *

S-Bus Term.

* in order to terminate the PROFIBUS DP, both DIP switches must be set to "PB Term".

PPO-Type

The PPO type used by the bus master is automatically detected by the PROFIBUS DP modules (SK CU4-PBR und SK TU4-PBR-…).

Configuration example

A PROFIBUS participant SK TU4-PBR is connected to an SK 200E series frequency inverter via a BUS connection unit SK T14-TU-BUS. The field bus address (PROFIBUS DP address) is to be "14". The PROFIBUS DP subscriber is not a final subscriber. The system bus only includes the frequency inverter and the PROFIBUS DP module. The termination resistor for the system bus is to be set at the frequency inverter. The DIP switches on the PROFIBUS DP module must be set as follows:

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3 Displays and diagnosis

RJ12

LEDs Potis

RJ12

LEDs Potis

PROFIBUS DP module SK CU4-PBR

status LEDs

PROFIBUS DP module unit SK TU4-PBR-M12 with

SK TI4-TU-BUS and SK TIE4-WMK-TU Status LEDs and viewing window (transparent screw-on

cover) for RJ12 diagnostic interface

Frequency inverter SK 200E viewing window (transparent screw-on cover) for

diagnostic interface RJ12, status LEDs, potentiometer

3 Displays and diagnosis

Various diagnosis possibilities are available, depending on the device. Operating conditions or errors are visualised by means of LEDs. PC-based communication or the connection of a parameterisation unit is possible via an RS232 interface (RJ12 diagnostic socket).

3.1 LED displays

Both the SK 200E frequency inverter and the CANopen modules provide LED status and diagnostic displays to indicate the various statuses.

A differentiation into 3 categories is made

 Module or module-specific displays (S and E or DS and DE)  Displays specific to PROFIBUS DP ((BS)BR and BE)  Status displays for the additional digital I/Os of the module (D1/2 or DI1...4 and DO1/2)

The possible displays differ according to the device.

3.1.1 Device-specific display versions

3.1.1.1 frequency inverter SK200E

LED S/E The double LED S/E indicates the operating status of the

frequency inverter by change of colour and different flashing frequencies. A device error is indicated by cyclic red flashing of the LED. The frequency of the flashing signals corresponds to the error number (Manual BU 0200).

LEDs BS and BE The dual LEDs BS (BUS State) and BE (BUS Error) indicate

the status of the system bus communication module. Various bus communication errors are indicated by means of different flashing frequencies.

A detailed description of the LED displays of the frequency inverter can be found in the main manual (BU0200).

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

3.1.1.2 Customer unit SK CU4-PBR

LEDs BR (or BS) and BE The dual LEDs BR (BUS Ready) and BE (BUS Error) indicate the

communication status of the PROFIBUS DP.

LEDs DS and DE The dual colour LEDs DS (Device State) and DE (Device Error) indicate

the status of the module and the status of the system bus.

LEDs D1 and D2 The single colour LEDs D1 (DIN 1 (Digital input 1)) and D2 (DIN 2 (Digital input 2)) indicate the signal status of the

digital inputs of the PROFIBUS DP module. The corresponding LED lights up in case of a High signal.

A detailed description of the LED displays for this module can be found in Section 3.1.2 "Signal status LEDs".

3.1.1.3 Technology unit SK TU4-PBR (-M12)

LEDs BR (or BS) and BE The dual LEDs BR (BUS Ready) and BE (BUS Error) indicate the

communication status of the PROFIBUS DP.

LEDs DS and DE The dual colour LEDs DS (Device State) and DE (Device Error)

indicate the status of the module and the status of the system bus.

LEDs DI1 to DI4 and DO1 and DO2 The single colour LEDs DI1 (DIN 1 (digital input 1)) to DI4 (DIN 4 (digital input 2)) and DO1 (DOUT 1 (digital

output 1) and DO2 (DOUT 2 (digital output 2)) indicate the signal status of the digital inputs or outputs of the PROFIBUS DP module. The corresponding LED lights up in case of a High signal.

These LEDs are only available in the PROFIBUS DP module SK TU4-PBR-M12.

A detailed description of the LED displays for this module can be found in Section 3.1.2 "Signal status LEDs".

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3 Displays and diagnosis

LED (green)

 Device State

LED (red)

 Device Error

Meaning

... Slow flashing = 2Hz (0.5s cycle) … Rapid flashing= 4Hz (0.25s cycle)

OFF

Technology unit not ready, no control voltage

OFF

Technology unit ready, no error, at least one frequency inverter is communicating via the system bus

Flashing 0.25s

Technology unit ready, however  one or more of the connected frequency inverters has a fault status

(see frequency inverter manual)

Flashing 0.5s

OFF

Technology unit ready and at least one further subscriber is connected to the system bus, but

 No frequency inverter on the system bus (or connection interrupted)  Address error for one or more system bus participants

Flashing 0.5s

Flashing 0.25s

Flash interval 1 x - 1s pause

System bus is in status "Bus Warning"

 Communication on system bus interrupted or  No other participant present on the system bus

Flashing 0.5s

Flashing 0.25s

Flash interval 2 x - 1s pause

 System bus is in status "Bus off" or  The system bus 24V power supply was interrupted during operation

Flashing 0.5s

Flashing 0.25s

Flash interval 3 x - 1s pause

 No system bus 24V power supply (system bus is in status "Bus off")

Flashing 0.5s

Flashing 0.25s

Flash interval 4 x - 1s pause

 PROFIBUS DP error of the technology unit Details: LED flashing code:BR and BE (Section 3.1.2.2 "PROFIBUS DP displays")

OFF

Flashing 0.25s

Flash interval 1…7 x - 1s pause

System error, internal program sequence interrupted

 EMC interference (observe wiring guidelines!)  Module faulty

3.1.2 Signal status LEDs

This manual only describes the LED signal statuses of the PROFIBUS DP modules. Information for the frequency inverter LEDs (SK 2xxE) can be found in the relevant manual (BU0200).

3.1.2.1 Module-specific displays The status of the technology unit or the system bus is indicated by the LEDs DS and DE.

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

LED

(dual colour)

 Bus Ready

LED

(dual colour)

 Bus Error

Meaning

... Slow flashing = 2Hz (0.5s cycle)

OFF

Technology unit not ready, no control voltage or  system error is indicated Details: LED flashing code: DS and DE

(Section 3.1.2.1 "Module-specific displays").

ON (green)

OFF

Normal operation, cyclic data exchange via PROFIBUS DP

Flashing 0.5s (green)

OFF

Technology unit not yet configured from DP master, no cyclic data exchange

 PROFIBUS DP cable not connected  Address error  DP master in STOP  Hardware configuration fault

(e.g. more than 4 frequency inverters are to be accessed)

ON (red):

Communication timeout  "Address monitoring time" in DP master expired

ON (red):

Flashing 0.5s (red)

Communication timeout  Timeout in process data reception

the time set in parameter (P151) has expired, without new process

data being received

Flashing 0.5s (red)

No communication between technology unit and DP master  Incorrect address range

(Address can be set with DIP switch,

Permissible range: 3 .. 125)

 Module faulty

3.1.2.2 PROFIBUS DP displays

The status of the PROFIBUS DP module is indicated by the BR and BE LEDs.

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3 Displays and diagnosis

I/O Channel

Status display

Meaning

Customer unit SK CU4-PBR

LED (green)

Digital input 1

High potential on terminal C1

OFF

Low potential on terminal C1

Digital input 2

High potential on terminal C2

OFF

Low potential on terminal C2

Technology unit SK TU4-PBR-M12(-C)

LED (yellow)

Digital input 1

DI1

High potential on terminal 19 or on M12 socket DI1

OFF

Low potential on terminal 19 or on M12 socket DI1

Digital input 2

DI2

High potential on terminal 25 or on M12 socket DI2

OFF

Low potential on terminal 25 or on M12 socket DI2

Digital input 3

DI3

High potential on terminal 20 or on M12 socket DI3

OFF

Low potential on terminal 20 or on M12 socket DI3

Digital input 4

DI4

High potential on terminal 26 or on M12 socket DI4

OFF

Low potential on terminal 26 or on M12 socket DI4

Digital output 1

DO1

High potential on terminal 33 or on M12 socket DO1

OFF

Low potential on terminal 33 or on M12 socket DO1

Digital output 2

DO2

High potential on terminal 34 or on M12 socket DO1

OFF

Low potential on terminal 34 or on M12 socket DO1

3.1.2.3 I/O Displays

The status of additional digital inputs and outputs on the BUS module is indicated by corresponding LEDs (except for SK TU4-PBR(-C)).

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

Terminal/ Name

Function

Data

Description / wiring suggestion

Parameter Diagnostic access / RJ12, RS485/RS232

1 RS485 A

Data cable RS485

Baud rate 9600…38400Baud

Termination resistor R=120 to be set by customer at the final subscriber.

RS485_A

RS485_B

GN D

TXD

RXD

+ 5 V

+24V

RJ12: Pin No. 1 … 6

1: RS485_A 2: RS485_B 3: GND 4: RS232_TxD 5: RS232_RxD 6: +24V

P502 …P513

2 RS485 B

3 GND

Reference potential for Bus signals

0V digital

4 232 TXD

Data cable RS232

Baud rate 9600…38400Baud

5 232 RXD

6 +24V

24V voltage supply from FI

24V  20%

NOTE

Simultaneous use of several diagnostic sockets with several diagnostic tools may lead to errors during communication. Therefore, only one diagnostic socket within a system bus network should be used.

3.2 RJ12 Diagnostic socket

All participants which are coupled via a common system bus (field bus module / frequency inverter (up to 4 devices)) can be read out and edited/parameterised via an RJ12 diagnostic socket. Either the diagnostic socket of the frequency inverter or that of the BUS connection units can be used. This provides users with a convenient facility to perform diagnosis and parameterisation from a central point, without having to access the particular frequency inverter at its location.

Although the customer unit SK CU4-PBR does not have an RJ12 connection, it can be accessed from any other participant (frequency inverter) on the same system bus.

The bus speed of the diagnostic interface is 38400 baud. Communication is carried out according to the USS protocol.

The NORDCON software and the ParameterBox SK PAR-3H are available as diagnostic tools.

For a detailed description of the use of these ParameterBoxes, please refer to Manual BU0040. The NORDCON software is available free of charge under www.nord.com. Connection cables for the SK PAR-3H are included in the scope of delivery of the box. The necessary cables for connecting the bus module to the PC (RJ12-SUB/D) can be ordered under the part number

278910240. Adapters for connection to a USB port are commercially available.

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3 Displays and diagnosis

Underside of SK 200E

8x DIP switches

Terminal/ Name

Function

Data

Description / wiring suggestion

Parameter Accessory cable (optional) for PC connection

Adapter cable RJ12 to SUB-D9

... for direct connection to a PC with NORD CON software

Length 3m Assignment RS 232

(RxD, TxD, GND)

Part. No. 278910240

TxD RxT

GND

+24V

n.c. n.c.

Assignment of SUBD9 connector: Pin2: RS232_TxD Pin3: RS232_RxD Pin5: GND

RxD

GND

TxD

6 1 5

Device

External

technology unit

Frequency inverter

with address 32

(system bus)

Frequency inverter

with address 34

(system bus)

Frequency inverter

with address 36

(system bus)

Frequency inverter

with address 38

(system bus)

USS

address

30 1 2 3 4

Alternatively, diagnosis can be performed via a Windows PC with the aid of NORD CON software (available free of charge from www.nord.com). The necessary connection cable (RJ12 - SUB D9) is available from Getriebebau Nord GmbH as part number 278910240. If necessary, an interface converter from SUB D9 to USB2.0 is commercially available.

No special settings are required to set up communication with the individual diagnostic tools. The allocation of addresses is defined via the system bus addressing. The display of the diagnostic tool is

according to the following table, whereby the frequency inverter which is directly connected to the diagnostic tool is automatically assigned the address “0”.

Note Setting of the system bus address is carried out via two DIP switches (DIP 1 and 2) on the underside of the SK 200Efrequency inverter. For further details, please refer to the frequency inverter manual (BU 0220). The address of the BUS module is defined as “30”.

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

Installing GSD files

GSD file selection

4 Commissioning

In order to operate the SK 200E frequency inverter with the PROFIBUS DP protocol, in addition to the bus connection to the master, the PROFIBUS DP modules must be implemented in the automation concept. This section describes the hardware planning and network structure on the basis of a SIMATIC S7 project with diagrams from the planning tool STEP 7. In addition, several parameters for the PROFIBUS DP connection must be changed and set in the frequency inverter (Section 5"Parameterisation").

4.1 GSD file

The GSD file (Device Master Data file) must be integrated into the engineering system for the DP master for configuration and setup of the PROFIBUS network. For this, in the HW config. mask of the SIMATIC Manager, the function install GSD files must be executed under the menu item Extras. For the integration of the GSD files, no other project must be open in the Hardware config.

For SK 200E applications on PROFIBUS DP, the GSD file NORD0BA8.GSD must be installed, as this is the only file which contains the SK xU4-PBR (-M12) with DPV1 functionality. This file is contained on the documentation CD, which is provided with the hardware. Updates on a daily basis are available on www.nord.com.

4.2 Hardware configuration: Configuration of the PROFIBUS DP Technology Unit

After the DP master has been planned and the PROFIBUS DP has been linked, DP slave can be selected from the catalogue and copied onto the network bus string.

After installation of the GSD file (NORD0BA8.GSD), the DP slaves from Getriebebau NORD are saved in the directory "PROFIBUS-DP/Weitere FELDGERÄTE/Antriebe/NORD".

After this, the configuration mask for the planned NORD drive unit can be opened by clicking on the DP slave symbol in the configuration mask.

Allocation of the DP slave participants to the PROFIBUS DP is then carried out.

The number of frequency inverters to be operated on a technology unit must then be defined. This results in the number of PPO type modules to be integrated in the Hardware config. of STEP 7.

A separate PPO module in the DP slave must be used for the input and output data of each connected SK 200E frequency inverter. This must be configured on the corresponding slot of the participant.

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4 Commissioning

 PROFIBUS address

Setting the PROFIBUS DP with DIP switches (Section 2.2.3 "Configuration

 Integration of the DP slave (technology

unit) on the PROFIBUS DP

Select the components from the catalogue and integrate them into the PROFIBUS DP string.

 The frequency inverters connected to

the technology unit must be defined

Specification of the frequency inverter designation and allocation of the associated addresses / slot allocation.

 Configuration of the DP slave

Assign the names and addresses

 Selection of PPO types

Each frequency inverter must be assigned a PPO type (parameterise on the appropriate slot)

 Technology unit I/Os

For the use of additional technology unit I/Os, the Profibus module I/O must be integrated into Slot 1 of the DP slave

Slot

Cyclic process data

transfer

Device

Profibus I/O Modules

Technology unit I/Os

PPO type 1 to 4

Frequency inverter 1

PPO type 1 to 4

Frequency inverter 2

PPO type 1 to 4

Frequency inverter 3

PPO type 1 to 4

Frequency inverter 4

Index

Acyclic parameter

transfer

Device

100

only parameter data

Technology unit

101

only parameter data

Frequency inverter 1

102

only parameter data

Frequency inverter 2

103

only parameter data

Frequency inverter 3

104

only parameter data

Frequency inverter 4

Configuration steps

The following items must be configured in the planning of an SK CU4-… or SK TU4-PBR(-M12) technology unit:

4.2.1 DP slave slot assignment

The following slot assignments must be observed in the DP slave for the planning of frequency inverters:

Cyclic data traffic The assignment of the input and output address ranges to the frequency inverters is made via the assignment

of the slot position.

Acyclic data traffic The assignment of acyclic data packages to the individual frequency inverters and the technology unit is not

carried out via the slot position, but rather via Slot 0 and the relevant index (Table):

Therefore no settings and configurations are required in the Hardware config. of the SIMATIC Manager are necessary for the use of acyclic data traffic for the transfer of parameter data.

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

NORD Modules

The system modules SFB 52 "RDREC" (read record) and SFB 53 "WRREC" to be used for acyclic data traffic in the PLC program sequence access Slot 0 via the "diagnosis address" of the PROFIBUS DP technology unit. The "diagnosis address" can be read out via the "object properties" of the DP slave.

Use of these system modules requires additional details of the index (see previous table) and the length, whereby due to the transfer of parameter data via the USS protocol (includes parameter data transfer), the length is always 8 byte (see also Section 7.2 "PROFIBUS DP PPO types").

4.2.2 Definition of PPO types

For cyclic data traffic, the Parameter- Process data Object (PPO) with which the process data (PZD) is transferred from the DP master to the frequency inverter is defined. The following settings may be selected:

 Universal module no function  Empty Empty slot  PPO type 1 to 4 for PKW and PZD  Profibus I/O Modules to control additional input and output

signals of the bus module

4.2.2.1 Universal module

A universal module is not defined. This setting has no function.

4.2.2.2 Empty

The setting Empty must always be selected if there is no device (frequency inverter) connected to the slot or the I/Os of the BUS module are not to be accessed.

4.2.2.3 PPO type 1 to 4

The setting of the PPO types is reserved for the connected frequency inverters (integrated into "Slots 2 - 5"). Here, each frequency inverter must be assigned the intended (required) PPO type.

With PPO types 1 and 2, both process data and parameters can be cyclically communicated between the DP master and the frequency inverter.

With PPO types 3 and 4, only process data is transferred. More detailed information about PPO type definitions is given in Section 7.2 "PROFIBUS DP PPO types". The PROFIBUS DP modules (SK CU4-PBR and SK TU4-PBR-…) are equipped with an automatic PPO type

detection.

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NOTE

The digital inputs of the PROFIBUS DP modules (SK CU4-PBR and SK TU4-PBR-…) cannot be directly assigned with frequency inverter functionalities. These must be transferred via the PROFIBUS and can be returned to the frequency inverter from the bus master via bits 8 and 9 of the control word by assignment of the required function in the BUS I/O In bits (P480 [-11] or [-12]).

PLC I/Os

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Inputs

n. c.

DIN4

DIN3

DIN2

DIN1

Outputs

n. c.

DO2

DO1

4.2.2.4 Profibus I/O Modules

This setting variant is exclusively reserved for the PROFIBUS DP module SK CU4-PBR or SK TU4-PBR…) which is connected to the system bus. This setting enables the DP master to directly access the digital I/Os of the module. In this 1 byte module, the digital outputs must be set as "output byte" and the digital inputs as "input byte".

The "Profibus module I/O" must always be set to Slot 1 in the DP slave. If the additional I/Os are not used, an "empty module" must be set on Slot 1.

The bits are allocated to the inputs and outputs as follows:

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

DP slave properties

Access monitoring setting

ATTENTION

In case of errors, disabling of access monitoring can result in the outputs of the affected slaves not being set to "0". It is therefore strongly recommended that the access monitoring is only disabled for test purposes during commissioning.

4.2.3 Timeout monitoring

There are two different communication monitoring variants.

4.2.3.1 Access monitoring of DP master

Access monitoring is a monitoring function which is controlled by the PROFIBUS DP master. With this, the DP master communicates a calculated time interval to each DP slave, within which a communication step must take place. If this time interval is exceeded the DP slave exits the "data exchange mode" and switches to the so-called safe mode. The frequency inverter to which it is connected is set to error status (Error E010 → 10.2).

During system planning, the access monitoring time is automatically calculated for the entire PROFIBUS DP network by the software tool STEP 7 / SIMATIC Manager. This value usually corresponds to 6x the "worst case" cycle time, and is in the range between 10ms to 650s.

The access monitoring serves as a protective function against incorrect parameterisation or failure of the transfer facilities and can by explicitly enabled or disabled for each individual DP slave.

4.2.3.2 DP slave watchdog

The technology unit provides an additional timeout monitoring function. This can be enabled by the user in parameter (P151) "External bus timeout" and set in ms steps. The time-out time must be set to at least 2x the value of the Profibus cycle time in parameter (P151). This watchdog function is started on receipt of the first valid PROFIBUS DP telegram (STW Bit 10 = "1" signal ("Process data valid")).

If all process data telegrams (PZD) are declared as invalid (STW Bit 10 = "0") the error message E10.2 is generated. The bus module switches off all of its outputs (0V). This situation occurs if the automation device is in STOP mode and the PROFIBUS DP master continues to send telegrams with data content "0".

As long as one of the connected frequency inverters is still in an error status, i.e. an error message has not been acknowledged, the technology unit remains in timeout error status.

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5 Parameterisation

Parameter {Factory setting}

Setting value / Description / Note

Device

Supervisor

Parameter set

P120 … [-01]

... … [-04]

Option monitoring

0 ... 2 { 1 }

Array levels:

Setting value for each array:

… [-01] = Extension 1 (BUS-TB) … [-02] = Extension 2 (IO-TB) … [-03] = Extension 3 (reserved) … [-04] = Extension 4 (reserved)

0 = Monitoring OFF 1 = Auto, communication is only monitored if an

existing communication is interrupted. If a module which was previously present is not found after switching on the mains, this does not result in an error Monitoring only becomes active when an extension starts communication with the FI.

2 = Monitoring active immediately; the FI starts

monitoring the corresponding module immediately after it is switched on. If the module is not detected on switch-on, the FI remains in the status "not ready for switch-on" for 5 seconds and then triggers an error message.

5 Parameterisation

In order to enable communication via PROFIBUS DP, the frequency inverter and the PROFIBUS DP technology Unit must be parameterised accordingly.

With the PROFIBUS DP protocol, the inverter parameters are mapped in the range 1000 to 1999, i.e. for parameterisation via the bus in cyclic data traffic (PPO type 1 or 2) 1000 must be added to the parameter numbers (e.g. (P508) - (P1508).

5.1 Parameterisation of frequency inverter SK 200E

The following list of parameters for the frequency inverter series SK 200E are directly relevant for the operation of the frequency inverter via PROFIBUS DP. A complete list of parameters for the frequency inverter (SK 200E) can be found in the relevant manual (BU0200).

5.1.1 Basic parameters (P100)

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

Parameter {Factory setting}

Setting value / Description / Note

Device

Supervisor

Parameter set

P420 … [-01]

... … [-04]

Digital inputs 1 to 4

0 ... 77 { [-01] = 01 } { [-02] = 02 } { [-03] = 04 } { [-04] = 05 }

In the SK 200E, up to 4 freely programmable digital inputs are available. The only restriction is with the versions SK 215E and SK 235E. Here, the fourth digital input is always the input for the function "Safe Stop".

… [-01] = Digital input 1 (DIN1), Enable right as factory setting, control terminal 21 … [-02] = Digital input 2 (DIN2), Enable left as factory setting, control terminal 22 … [-03] = Digital input 3 (DIN3), fixed frequency 1 (P465 [-01]) as factory setting,

control terminal 23

… [-04] = Digital input 4 (DIN4), fixed frequency 2 (P465 [-02]) as factory setting,

(not with SK 215/235E  "Safe Stop"), control terminal 24

Various functions can be programmed. For the complete list, please refer to the SK 200E frequency inverter manual (BU0200).

NOTE: The additional digital inputs of the field bus group are managed via parameter (P480).

Value

Function

Description

Signal

No function

Input switched off.

---

…

14 1

Remote control

With bus system control, Low level switches the control to control via control terminals.

High

…

Also effective for bus control (RS232, RS485, CANbus, CANopen, DeviceNet, Profibus, InterBus, AS-Interface)

5.1.2 Control clamp parameter (P400)

Excerpt...

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5 Parameterisation

Parameter {Factory setting}

Setting value / Description / Note

Device

Supervisor

Parameter set

P480 ... [-01]

... ... [-12]

Function Bus I/O In Bits

0 ... 77 { [-01] = 01 } { [-02] = 02 } { [-03] = 05 } { [-04] = 12 } { [-05...-12] = 00 }

The Bus I/O In Bits are perceived as digital inputs. They can be set to the same functions (P420).

These I/O bits can also be used in combination with the AS Interface (SK 225E or SK 235E) or the I/O extension (SK CU4-IOE or SK TU4-IOE).

… [-01] = Bus I/O In Bit 0 … [-02] = Bus I/O In Bit 1 … [-03] = Bus I/O In Bit 2 … [-04] = Bus I/O In Bit 3 … [-05] = Bus I/O In Bit 4 … [-06] = Bus I/O In Bit 5

… [-07] = Bus I/O In Bit 6 … [-08] = Bus I/O In Bit 7 … [-09] = Flag 1 … [-10] = Flag 2 … [-11] = Bit 8 BUS control word … [-12] = Bit 9 BUS control word

The possible functions for the bus In bits can be found in the table of functions for the digital inputs in parameter P420.

P481 ... [-01]

... ... [-10]

Function Bus I/O Out Bits

0 ... 39 { [-01] = 18 } { [-02] = 08 } { [-03] = 30 } { [-04] = 31 } { [-05...-10] = 00 }

The bus I/O Out bits are perceived as multi-function relay outputs. They can be set to the same functions (P434).

These I/O bits can also be used in combination with the AS Interface (SK 225E or SK 235E) or the I/O extension (SK CU4-IOE or SK TU4-IOE).

… [-01] = Bus I/O Out Bit 0 … [-02] = Bus I/O Out Bit 1 … [-03] = Bus I/O Out Bit 2 … [-04] = Bus I/O Out Bit 3 … [-05] = Bus I/O Out Bit 4 … [-06] = Bus I/O Out Bit 5

… [-07] =Flag 1 … [-08] = Flag 2 … [-09] = Bit 10 BUS status word … [-10] = Bit 13 BUS status word

The possible functions for the Bus Out Bits can be found in the table of functions for the relay P434.

P482 ... [-01]

... ... [-08]

Standardisation of bus I/O Out bits

-400 … 400 % { all 100 }

Adjustment of the limit values of the bus Out bits. For a negative value, the output function will be output negative.

Once the limit value is reached and positive values are delivered, the output produces a High signal, for negative setting values a Low signal.

P483 ... [-01]

... ... [-08]

Hysteresis of bus I/O Out bits

1 … 100 % { all 10 }

Difference between switch-on and switch-off point to prevent oscillation of the output signal.

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

Parameter {Factory setting}

Setting value / Description / Note

Device

Supervisor

Parameter set

P509

Source Control Word

0 ... 4 { 0 }

Selection of the interface via which the FI is controlled.

0 = Control terminals or keyboard control** with the SimpleBox (if (P510)=0), the

ParameterBox or via BUS I/O Bits.

1 = Only control terminals *, the FI can only be controlled via the digital and analog input

signals or via the Bus I/O Bits.

2 = USS control word *, the control signals (enable, rotation direction, etc.) are transferred

via the RS485 interface, the setpoint via the analog input or the fixed frequencies.

3 = System bus *, the control signals (enable, direction of rotation, ...) are transferred via the

system bus (the field bus module and the frequency inverter communicate via the system bus). I.e. the setting "3" - "System bus" must be selected in parameter (P509) for control of the frequency inverter via the field bus.

4 = System bus broadcast *

*) Keyboard control (SimpleBox, ParameterBox, PotentiometerBox) is disabled,

parameterisation is still possible.

**) If the communication during keyboard control is interrupted (time out 0.5 sec), the

FI will disable without an error message.

NOTE:

For details of the optional bus systems, please refer to the relevant supplementary bus manuals (BU02x0).

- www.nord.com –

As an alternative to setting the parameter, System Bus can also be selected with DIP switch 3.

P510 ... [-01]

... [-02]

Setpoint source

0 ... 4 { [-01] = 0 } { [-02] = 0 }

Selection of the setpoint source to be parameterised.

… [-01] = Main setpoint source

… [-02] = Subsidiary setpoint source

Selection of the interface via which the FI receives the setpoint.

0 = Auto: The setpoint source is automatically derived

from the setting in the parameter P509 >Control word source<.

1 = Control terminals, digital and analog inputs

control the frequency, including fixed frequencies

2 = USS 3 = System bus 4 = System bus broadcast

P513

Telegram time-out

-0.1 / 0.0 /

0.1 ... 100.0 sec { 0.0 }

Monitoring function of the active bus interface. Following receipt of a valid telegram, the next one must arrive within the set period. Otherwise the FI reports an error and switches off with the error message E010 >Bus Time Out<.

0.0 = Off: Monitoring is switched off.

-0.1 = no error: Even if communication between BusBox and FI is interrupted (e.g. 24V error,

Box removed, etc.), the FI will continue to operate unchanged.

Note:

In BUS mode (e.g.: PROFIBUS DP), monitoring is controlled via parameter (P120). Settings in parameter (P513) therefore have no effect.

Exception: Setting {-0,1}

5.1.3 Supplementary parameters (P500)

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5 Parameterisation

Parameter {Factory setting}

Setting value / Description / Note

Device

Supervisor

Parameter set

P514

CAN baud rate (system bus)

0 ... 7 { 5 }**

Setting of the transfer rate (transfer speed) via the system bus interface. All bus participants must have the same baud rate setting.

0 = 10kBaud 1 = 20kBaud 2 = 50kBaud

3 = 100kBaud 4 = 125kBaud 5 = 250kBaud**

6 = 500kBaud 7 = 1Mbaud *

*) Reliable operation cannot be guaranteed **) for communication with the bus module, the parameter must be left at the factory setting

(250kBaud) otherwise no communication is possible.

P515 ... [-01]

… ... [-03]

CAN address (system bus)

0 ... 255 dec { all 32 dec} or { all 20 hex}

Setting of the system bus address.

… [-01] = Receive address for system bus … [-02] = Broadcast – Receive address for system bus (slave) … [-02] = Broadcast – Transmit address for system bus (master)

NOTE:

If up to four SK 200E are to be linked via the system bus, the addresses must be set as follows  FI 1 = 32, FI 2 = 34, FI 3 = 36, FI 4 = 38.

The system bus addresses should be set via the DIP switches 1/2 (Section 2.2.3).

P543 … [-01]

... … [-03]

Actual bus value 1 … 3

S P

0 ... 24 { [-01] = 01 } { [-02] = 04 } { [-03] = 09 }

The return value can be selected for bus actuation in this parameter. NOTE: For further details, please refer to the description for P418.

… [-01] = Actual bus value 1 … [-02] = Actual bus value 2 (only for PPO Type 2 or 4) … [-03] = Actual bus value 3 (only for PPO Type 2 or 4)

Possible values which can be set:

0 = Off 1 = Actual frequency 2 = Actual speed 3 = Electricity 4 = Torque current (100% = P112) 5 = State of digital inputs and outputs 2 6 = ... 7 Reserved 8 = Setpoint frequency 9 = Error number

10 = ... 11 Reserved

12 = Bus Out bits 0...7 13 = ... 16 Reserved 17 = Value analog input 1 (BU0200) 18 = Value analog input 2 (BU0200) 19 = Setpoint frequency master value (P503) 20 = Setpoint frequency after master value

ramp

21 = Actual frequency without master value slip 22 = Speed from encoder 23 = Actual frequency with slip 24 = Master value, actual freq. with slip

The assignment of the dig. inputs for P543 = 5

Bit 0 = DigIn 1 Bit 4 = PTC input Bit 8 = DigIn 5 Bit 12 = DigOut 1

BU 0220 GB-0912 Subject to technical amendments 45

Bit 1 = DigIn 2

(FI)

Bit 5 = Reserved Bit 6 = DigOut 3

[FI]

(DI1, 1.SK…IOE)

(FI)

Bit 9 = DigIn 6

Bit 13 = mech. brake

Bit 2 = DigIn 3

(FI)

(DI2, 1.SK…IOE)

Bit 10 = DigIn 7

Bit 14 = DigOut 2

(FI)

Bit 3 = DigIn 4

(FI)

(DO1, 1.SK…IOE)

(DI3, 1.SK…IOE)

(FI)

Bit 7 = DigOut 4

Bit 11 = DigIn 8

(FI)

(DO2, 1.SK…IOE)

(DI4, 1.SK…IOE)

Bit 15 = Reserved

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

Parameter {Factory setting}

Setting value / Description / Note

Device

Supervisor

Parameter set

P546 … [-01]

... … [-03]

Function Bus setpoint 1 ... 3

S P

0 ... 32 { [-01] = 01 } { [-02] = 00 } { [-03] = 00 }

In this parameter, a function is allocated to the output setpoint during bus actuation. NOTE: For further details, please refer to the description for P400.

… [-01] = Bus setpoint value 1 … [-02] = Setpoint bus value 2 (only for PPO Type 2 or 4) … [-03] = Setpoint bus value 3 (only for PPO Type 2 or 4)

Possible values which can be set:

0 = Off 1 = Setpoint frequency (16 bit) 2 = Frequency addition 3 = Frequency subtraction 4 = Minimum frequency 5 = Maximum frequency 6 = PI process controller actual value 7 = PI process controller setpoint 8 = Actual frequency PI 9 = Actual PI frequency limited

10 = Actual PI frequency monitored

11 = Limiting torque current 12 = Torque current switch-off limit 13 = Limiting current 14 = Current switch-off limit 15 = Ramp time 16 = Lead torque (P214) multiplication 17 = Multiplication 18 = Curve travel calculator 19 = Servo mode torque 20 = BusIO In Bits 0-7 21 = ...24 reserved for Posicon 31 = Digital output IOE 32 = Analog output IOE

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5 Parameterisation

Parameter {Factory setting}

Setting value / Description / Note

Device

Supervisor

Parameter set

P552 … [-01]

… [-02]

System bus master cycle time

0 / 0.1 … 100.0 ms { 0 }

In this parameter, the cycle time for the system bus master mode and the CAN open encoder is set (see P503/514/515):

… [01] = Cycle time for system bus master functions … [02] = Cycle time for system bus absolute value encoder

With the setting 0 “Auto” the default value (see table) is used. According to the Baud rate set, there are different minimum values for the actual cycle time:

Baud rate

Minimum value tZ

Default system bus master

Default system bus abs.

10kBaud

10ms

50ms

20ms

20kBaud

10ms

25ms

20ms

50kBaud

5ms

10ms

100kBaud

2ms

5ms

125kBaud

2ms

5ms

250kBaud

1ms

5ms

2ms

500kBaud

1ms

5ms

2ms

1000kBaud:

1ms

5ms

2ms

P560

Save in EEPROM

0 ... 1 { 1 }

0 = Changes to the parameter settings are no longer saved on the EEPROM. Previously

saved settings remain stored, even if the FI is disconnected from the mains; however new changes are not saved after a mains failure.

1 = All parameter changes are automatically written to the EEPROM and remain stored there

even if the FI is disconnected from the mains supply.

NOTE: If BUS communication is used to implement parameter changes, it must be

ensured that the maximum number of write cycles (100,000 x) in the EEPROM is not exceeded.

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

Parameter

Setting value / Description / Note

Device

Supervisor

Parameter set

P700

Actual error

0.0 ... 21.4

Actual error present. Further details are described in the frequency inverter manual (BU0200). SimpleBox: Descriptions of the individual error numbers can be found in the point Error

messages. ParameterBox: Errors are displayed in plain text, further information can be found in the point

Error messages.

P701 ... [-01]

... ... [-05]

Last fault 1...5

0.0 ... 21.4

This parameter stores the last 5 faults. Further details are described in the frequency inverter manual (BU0200).

With the SimpleBox the corresponding memory location 1...5 (Array parameter), must be selected and confirmed with the ENTER key in order to read the stored error code.

P740 ... [-01]

…

... [-13]

Process data bus In

0000 ... FFFF (hex)

This parameter provides information about the actual control word (STW) and the setpoints (SW1-3) that are transferred via the bus systems.

For values to be displayed, a bus system must be selected in P509.

… [-01 ] = Control word

Control word, source from P509.

… [-02 ] = Setpoint 1 (P546 [-01]) … [-03 ] = Setpoint 2 (P546 [-02]) … [-04 ] = Setpoint 3 (P546 [-03])

Setpoint data from main setpoint P510 - 01. … [-05 ] = Bus I/O In Bits (P480)

The displayed value depicts all Bus In Bit sources linked with or.

… [-06 ] = Parameter data In 1 … [-07 ] = Parameter data In 2 … [-08 ] = Parameter data In 3 … [-09 ] = Parameter data In 4 … [-10 ] = Parameter data In 5

Data during parameter transfer: Order label (AK), Parameter number (PNU), Index (IND), Parameter value (PWE 1/2)

… [-11 ] = Setpoint 1 … [-12 ] = Setpoint 2 … [-13 ] = Setpoint 3

Setpoint data from master function value (Broadcast), if P509/510 = 4 (P502/P503)

5.1.4 Information parameters (P700)

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5 Parameterisation

Parameter

Setting value / Description / Note

Device

Supervisor

Parameter set

P741 ... [-01]

... ... [-10]

Process data bus Out

0000 ... FFFF (hex)

This parameter provides information about the actual status word and the actual values that are transferred via the bus systems.

... [-01] = Status word

Status word

... [-02] = Actual value 1 (P543 [-01]) ... [-03] = Actual value 2 (P543 [-02]) ... [-04] = Actual value 3 (P543 [-03])

... [-05] = Bus I/O Out Bit (P481)

The displayed value depicts all Bus Out Bit sources linked with or.

... [-06] = Parameter data Out 1 ... [-07] = Parameter data Out 2 ... [-08] = Parameter data Out 3 ... [-09] = Parameter data Out 4 ... [-10] = Parameter data Out 5

Data during parameter transfer.

P748

System bus status

0000 ... FFFF (hex) or 0 ... 65535 (dec)

Shows the status of the system bus.

Bit 0: Bit 1: Bit 2: Bit 3: Bit 4: Bit 5: Bit 6: Bit 7: Bit 8: Bit 9: Bit 10:

24V Bus supply voltage CANbus in "Bus Warning" status CANbus in "Bus Off" status Bus module is online Additional module 1 is online Additional module 2 is online The protocol of the CAN module is 0 = CAN / 1 = CANopen Vacant "Bootup Message" sent CANopen NMT State CANopen NMT State

CANopen NMT State

Bit 10

Bit 9

Stopped Pre-Operational Operational

0 0 1

0 1 0

P749

DIP switch status

0000 ... 01FF (hex) or 0 ... 511 (dec)

This parameter shows the actual setting of the FI DIP switch "S1" (See BU0200).

Bit 0: Bit 1: Bit 2: Bit 3: Bit 4:

DIP switch 1 DIP switch 2 DIP switch 3 DIP switch 4 DIP switch 5

Bit 5: Bit 6: Bit 7: Bit 8:

DIP switch 6 DIP switch 7 DIP switch 8 EEPROM – Memory module

(0=plugged in, 1= not plugged in)

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Parameter {Factory setting}

Setting value / Description / Note

Device

Supervisor

Parameter set

P150

Set relays

0 ... 4 { 0 }

0 = Via bus 1 = Outputs OFF 2 = Output 1 to (DO1)

3 = Output 2 to (DO2) 4 = Outputs 1 and 2 ON

P151

Timeout for external bus

0 ... 32767 ms { 0 }

Monitoring function of the relevant active bus technology unit. Following receipt of a valid telegram, the next one must arrive within the set period. Otherwise the inverter reports an error and switches off with the error message E010 / E10.3 >Bus Time Out<.

0 = Off: Monitoring is switched off. Behaviour is identical to parameter (P513) telegram timeout for SK 200E. NOTE: The time-out time must be set to at least 2x the value of the Profibus cycle time

in parameter (P151).

P152

Factory setting

0 ... 1 { 0 }

By selecting the appropriate value and confirming it with the ENTER key, the selected parameter range is entered in the factory setting. Once the setting has been made, the value of the parameter returns automatically to 0.

0 = No change: Does not change the parameterisation. 1 = Load factory settings: The complete parameterisation of the FI is reset to the factory

setting. All originally parameterised data are lost.

P153 ... [-01]

... [-02]

Minimum system bus cycle

0 ... 250 ms { [-01] = 10 } { [-02] = 5 }

Reduction of the bus load on the system bus by adjustment of the minimum cycle time (inhibit time):

… [-01] = SDO Inhibit time

… [-02] = PDO inhibit time

P154 ... [-01]

... [-02]

TB-IO access

0 ... 5 { [-01] = 0 } { [-02] = 0 }

SW V1.1R0 and higher

Direct access to the frequency inverter via 2 digital inputs and/or 2 digital outputs of the bus module SK xU4-PBR:

… [-01 ] = Access to inputs Definition of functions: DigIn1 of the bus module  (P480[-11]) DigIn2 of the bus module  (P480[-12])

… [-02] = Access to outputs

DigOut1 of bus module  (P481[-09]) DigOut2 of bus module  (P481[-10])

Settings:

3 = No effect: The IOs are not evaluated by the FI.

Bits 8 and 9 of the control word can be set or read out via the PLC. (Section 7.2.1.7, 7.2.1.8)

4 = Broadcast: (This setting can only be used with

(P154[-01])) - All FIs read the inputs, the settings for (P154[-02]) have no effect.

5 = FI 1: reads and writes the IO 6 = FI 2: reads and writes the IO 7 = FI 3: reads and writes the IO 8 = FI 4: reads and writes the IO

5.2 Parameterisation of the bus module (SK CU4-… or SK TU4-…)

The following parameters affect the bus modules.

5.2.1 BUS module standard parameters (P150)

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5.2.2 BUS module information parameters, general (P170)

Parameter

Setting value / Description / Note

Device

Supervisor

Parameter set

P170 ... [-01]

... [-02]

Actual error

0 ... 9999

Further details in Section 6.2 "Error messages".

… [-01 ] = Current module error … [-02 ] = Last module error

Possible values: 1000 = EEPROM error 1010 = System bus 24V missing 1020 = System bus timeout (see time in P151) 1030 = System bus OFF

Specific to PROFIBUS DP 5000 = PROFIBUS ASIC error 5010 = PROFIBUS address incorrect 5020 = PROFIBUS timeout

P171 ... [-01]

...

... [-03]

Software version/ Revision

0,0 ... 9999.9

This parameter shows the software and revision numbers in the module. Array 03 provides information about any special versions of the hardware or software A zero stands for the standard version.

… [-01] = Software version … [-02] = Software revision … [-03] = Special version

P172

Configuration

0 ... 2

The version can be queried in this parameter.

Possible values:

0= internal module 1= external module 2 = Bus TO via SPI

5 Parameterisation

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Parameter

Setting value / Description / Note

Device

Supervisor

Parameter set

P173

Module status

0 ... FFFF (hex)

Possible values:

Bit 0 = Bus status “PREOPERATIONAL” (PROFIBUS DP initialisation active) Bit 1 = Bus status “OPERATIONAL” (Data exchange active) Bit 2 = Node-guarding timeout (PROFIBUS DP master watchdog) Bit 3 = Timeout (time in P151) Bit 4 = Module system error Bit 5 = Reserved Bit 6 = System bus “BUS WARNING” Bit 7 = System bus “BUS OFF” Bit 8 = Status FI 1 Bit 9 = Status FI 1 Bit 10= Status FI 2 Bit 11= Status FI 2 Bit 12= Status FI 3 Bit 13= Status FI 3 Bit 14= Status FI 4 Bit 15= Status FI 4

Status for FI x:

Bit High Bit Low Status 0 0 FI is offline

0 1 unknown FI 1 0 FI is online 1 1 FI missing or switched off

P174

Digital inputs

0 ... 15

Instantaneous view of input level logic.

Possible values:

Bit 0= Input 1 (DIN1 of the bus module) Bit 1= Input 2 (DIN2 of the bus module) Bit 2= Input 3 (DIN3 of the bus module) Bit 3= Input 4 (DIN4 of the bus module)

P175

Digital outputs

0 ... 3

Instantaneous view of output level logic.

Possible values:

Bit 1= Output 1 (DO1 of the bus module) Bit 2= Output 2 (DO2 of the bus module)

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5 Parameterisation

Parameter

Setting value / Description / Note

Device

Supervisor

Parameter set

P176 ... [-01]

...

... [-17]

Process data bus In

-32768 ... 32767

Bus data received from PROFIBUS DP master

… [-01] = Bus module outputs … [-02] = Control word FI 1 … [-03] = Setpoint 1 for FI 1 … [-04] = Setpoint 2 for FI 1 … [-05] = Setpoint 3 for FI 1 … [-06] = Control word FI 2 … [-07] = Setpoint 1 for FI 2 … [-08] = Setpoint 2 for FI 2 … [-09] = Setpoint 3 for FI 2

… [-10] = Control word FI 3 … [-11] = Setpoint 1 for FI 3 … [-12] = Setpoint 2 for FI 3 … [-13] = Setpoint 3 for FI 3 … [-14] = Control word FI 4 … [-15] = Setpoint 1 for FI 4 … [-16] = Setpoint 2 for FI 4 … [-17] = Setpoint 3 for FI 4

P177 ... [-01]

...

... [-17]

Process data bus Out

-32768 ... 32767

Bus data transmitted to PROFIBUS DP master

… [-01] = Bus module inputs … [-02] = Status word FI 1 … [-03] = Actual value 1 for FI 1 … [-04] = Actual value 2 for FI 1 … [-05] = Actual value 3 for FI 1 … [-06] = Status word FI 2 … [-07] = Actual value 1 for FI 2 … [-08] = Actual value 2 for FI 2 … [-09] = Actual value 3 for FI 2

… [-10] = Status word FI 3 … [-11] = Actual value 1 for FI 3 … [-12] = Actual value 2 for FI 3 … [-13] = Actual value 3 for FI 3 … [-14] = Status word FI 4 … [-15] = Actual value 1 for FI 4 … [-16] = Actual value 2 for FI 4 … [-17] = Actual value 3 for FI 4

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Parameter

Setting value / Description / Note

Device

Supervisor

Parameter set

P180

Profibus address

3 ... 125

Shows the PROFIBUS address which is set with the DIP switch. Setting of the address is only carried out via the DIP switch (see Section 2.2.3 ). After the new setting of addresses, all the devices on this bus must be restarted by switching the power supply off and on again.

Note:

Addresses 0 to 2 and 126 are reserved for PROFIBUS DP special services.

P181

Profibus baud rate

0 ... 15

Shows the automatically detected baud rate:

Possible values:

0 =

Mbit/s

6 =

93,75

kbit/s

1 =

Mbit/s

7 =

45,45

kbit/s

2 =

Mbit/s

8 =

19,20

kbit/s

3 =

1,5

Mbit/s

9 =

9,60

kbit/s

4 =

500

kbit/s

10 …

Reserved

5 =

187,5

kbit/s

15 =

after reset and during a baud rate scan

Note:

The baud rate which is set by the bus master is independently detected by the SK xU4-PBR module. The restriction of the cable length for the set baud rate must be taken into account. (Section 8.1.2 "Cable material").

P182 ... [-01]

...

... [-05]

PPO-Type

0 ... 255

… [-01] = Bus module … [-02 ] = FI 1 … [-03 ] = FI 2 … [-04 ] = FI 3 … [-05 ] = FI 4

Shows the actually selected PPO type. Selection of the required PPO type is made via the PLC configuration program. (Section 7.2 "PROFIBUS DP PPO types"):

0 = no participant configured 48 = Bus module 245 = PPO type 1 247 = PPO type 2 241 = PPO type 3 243 = PPO type 4

5.2.3 Module information parameters specific to the bus (P180)

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6 Error monitoring and error messages

NOTE

The display of a bus error is shown in the operating display of the SimpleBox SK CSX3H by means of the error group number E1000. In order to obtain the precise error number, the module information parameter P170 must be selected. The current error is shown in Array [01] of this parameter; the last error is stored in Array [02].

6 Error monitoring and error messages

6.1 Error monitoring

The majority of bus module and frequency inverter functions and operating data are continuously monitored and simultaneously compared with limiting values. If a deviation is detected, the bus module or inverter reacts with a warning or an error message.

For basic information, please refer to the relevant main manual of the frequency inverter.

Errors cause the frequency inverters to switch off, in order to prevent a device fault.

The following options are available to reset a fault (acknowledge):

1. Switching the mains off and on again,

2. by means of a correspondingly programmed digital input (SK 200E: (P420) [-…], function {12} or SK 500E: (P420 ... P425), function {12}),

3. By switching of the “enable” on the frequency inverter (if no digital input is programmed for acknowledgement),

4. By Bus acknowledgement or

5. By P506, the automatic error acknowledgement.

Visualisation of the inverter error codes is made via the frequency inverter (see relevant manual). Errors which are attributable to bus operation are visualised via the bus module. The precise error message is

displayed in parameter (P170).

The PROFIBUS DP module monitors the following functions:  Cyclic connection to bus master via the PROFIBUS DP watchdog function

(parameterisation is carried out in the bus master)

 Cyclic connection to the bus master and valid control data via the bus module parameter (P151)

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Display in the SimpleBox

Fault Text in the ParameterBox

Cause Remedy

Group

Details in P700[-01] / P701

E010

10.0

Bus Timeout

(Telegram time-out / Bus off 24V int. CANbus)

Data transfer is faulty. Check P513. Check physical bus connections Check Bus Master. Check 24V supply of internal CAN/CANopen Bus.

Nodeguarding error (internal CANopen) Bus Off error (internal CANbus)

10.2

External bus module telegram timeout

(Timeout Profibus Watchdog)

Telegram transfer is faulty. Check physical bus connections PLC is in the "STOP" or "ERROR" state.

10.3

Timeout via (P151)

Telegram transfer is faulty. Check watchdog time (P151) Check physical bus connections Check bus protocol program process. PLC is in the "STOP" or "ERROR" state.

10.4

External bus module initialisation failure

Profibus ASIC in the bus module cannot be accessed

10.8

External module communication failure

Connection fault / error in the external module to the FI

10.9

Module not found

The module entered in parameter (P120) is not available.

6.2 Error messages

6.2.1 Table of possible error messages (caused by the bus) in the frequency inverter

The following error messages concern bus-related messages which are indicated on the frequency inverter. A complete list of error messages for the frequency inverter (SK 200E) can be found in the relevant manual (BU0200).

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6 Error monitoring and error messages

Display in the SimpleBox

Fault Text in the ParameterBox

Cause Remedy

Group

Details in P170

E1000

1000

EEPROM error

Module faulty

1010

System bus 24V missing

Check connections and supply cables Ensure 24V voltage supply

1020

System bus timeout

Check physical bus connections FI has been switched off

1030

System bus OFF

Check physical bus connections

5000

PROFIBUS ASIC error

Profibus system error (ASIC cannot be accessed)

5010

PROFIBUS address incorrect

Comply with address range 3 ... 125

5020

PROFIBUS timeout

Telegram transfer is faulty. Check physical bus connections

6.2.2 Table of possible error messages in the bus module

The following error messages concern bus-related messages, which are indicated on the PROFIBUS DP module (SK CU4-PBR or SK TU4-PBR(-…)).

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MASTER

SLAVE

Parameter order

Control word + setpoints

Parameter response

Status word + actual value

PKW area

PZD area

Order telegram

Response telegram

Processing

7 PROFIBUS DP data transfer

7.1 Structure of reference data

This section describes the cyclic data traffic between the DP master and the frequency inverter.

The reference data is divided into two sections:

 PKW section (Parameter Code Value (parameterisation level))  PZD section (Process data (process data level))

Parameter values can be read and written via the PKW section of the reference data. All tasks which are carried out via the PKW interface are essentially tasks for configuration, monitoring or diagnosis.

The PZD section serves to control the frequency inverter. The control word or status word as well as the setpoint and actual values are transferred in the process data.

Access always consists of an order and a response telegram. In the order telegram, the reference data is transferred to the slave. In the response telegram, the reference data is transferred from the slave to the master. The structure of both telegrams is identical.

Fig.: Telegram traffic / structure of reference data area

Processing of the process data is carried out immediately in the FI (high priority), in order to ensure a rapid reaction to control commands or a change in status can be transmitted to the master without delay.

On the other hand, the processing speed of the PKW data has a lower priority, so that processing may take considerably longer.

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7 PROFIBUS DP data transfer

Type

Task

PPO1

extended parameter data telegram with 32 bit parameter values and process data

PPO2

Telegram with extended process data (main and two auxiliary setpoint values) and 32 bit parameter value

PPO3

Process data telegram with main setpoint value without parameter data

PPO4

extended process data telegram with main and auxiliary setpoint values without parameter data

PKW

PZD

PKE

IND

PWE

PZD1

PZD2

PZD3

PZD4

STW

SW1

SW2

SW3

ZSW

IW1

IW2

IW3

1. word

2. word

3. word

4. word

5. word

6. word

7. word

8. word

PPO 1

PPO 2 1. word

2. word

3. word

4. word

PPO3

PPO4

7.2 PROFIBUS DP PPO types

For cyclic data traffic, the Parameter- Process data Object (PPO) with which the process data (PZD) and parameters (PKW) are transferred from the DP master to the frequency inverter is defined. The frequency inverter can process PPO types 1, 2, 3 or 4.

PPO3 and PPO4 are purely process data objects for applications which do not require parameter processing.

Note: A PLC can normally only consistently transfer double words by means of I/O memory access. For

longer data formats (PKW channel always / PZD data with PPO2 or PPO4) system functions (e.g. SFC 14, consistent data reading / SFC15, consistent data writing) must be used.

Structure of PPO types

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1.(/5.) word

2.(/6.) word

3.(/7.) word

4.(/8.) word

PZD area with 1x16-Bit setpoint

STW ZSW

SW1

IW1

PP0 Type (1,)3

PZD area with up to 3 16-Bit setpoints

STW ZSW

SW1

IW1

SW2

IW2

SW3

IW3

PP0 Type (2,)4

Note: 32-Bit setpoints consist of High and Low words (16-Bit each).

7.2.1 Process data (PZD)

In the process data area (PZD), control words and setpoints are transferred from the master to the slave (frequency inverter) and in return, status words and actual values are sent from the slave to the master. The structure of the PZD area is always the same in terms of the sequence of its elements (words), however, dependent upon direction of data Master  inverter / inverter  Master, it is described differently.

The process data area of the reference data has the following structure:

- STW: Control Word; length 16 bit, order telegram contains control bits (e.g. enable, rapid stop, error acknowledgement)

- ZSW: Status Word; length 16 bit, response telegram contains status bits (e.g. FI running, fault)

- SW1..3: Setpoints; maximum 3 possible, 16 or 32Bit, order telegram e.g. frequency setpoint value, position setpoint value, torque setpoint value

- IW1..3: Actual values; maximum 3 possible, 16 or 32Bit, response telegram e.g. actual frequency value, actual position value, actual torque value

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PZD1

PZD2

PZD3

PZD4

STW

SW1

SW2/3

10 9 8 7 6 5 4 3 2 1 0

Bit

Value

Meaning

Remarks

0 0 OFF 1

Reverse with the brake ramp, with disconnection from supply at f=0Hz

1 ON

Ready for operation

1 0 OFF 2

Cut off voltage; the inverter output voltage is switched off; the FI enters a state where switching on is disabled.

1 Operating condition

OFF 2 is cancelled

2 0 OFF 3

Quick stop with programmed quick stop time; with disconnection from supply at f=0Hz; the FI switches to starting disabled condition.

1 Operating condition

OFF 3 is cancelled

3 0 Disable operation

Cut off voltage; the inverter output voltage is switched off; the FI enters a state where switching on is enabled.

1 Enable operation

The output voltage is enabled; ramp to the existing setpoint

4 0 Lock ramp generator

Ramp generator is set to zero; no disconnection from supply at f=0Hz; FI remains in the operation enabled state.

1 Operating condition

Enable ramp generator

5 0 Stop ramp generator

The setpoint currently provided by the ramp generator is "frozen" (frequency is maintained).

1 Enable ramp generator

Enable setpoint on ramp generator

6 0 Disable setpoint

Selected setpoint value is set to zero on the ramp generator.

1 Enable setpoint

Selected ramp generator setpoint is activated.

7 0 No acknowledgement

With the switch from 0 to 1, errors which are no longer active are acknowledged.

1 Acknowledge

Note: When a digital input has been programmed for the "ack.fault" function, this bit must not permanently be set to 1 via the bus (otherwise, edge evaluation would be prevented).

8 0

1 Bit 8 active

Bus bit 8 from the control word is set. (only for SK 200E and SK 500E) For further details of function, please refer to parameter (P480) and Section 7.2.1.7.

9 0

1 Bit 9 active

Bus bit 9 from the control word is set. (only for SK 200E and SK 500E) For further details of function, please refer to parameter (P480) and Section 7.2.1.7.

10 0 PZD invalid

The transmitted process data is invalid.

1 PZD valid

Valid process data is transferred from the master. Note: If only setpoints are transferred via the bus, this bit must be set so that the

transferred setpoint is valid.

11 0

1 Rotational direction:

right

Rotational direction right (priority) ON*

12 0

1 Rotational direction:

left

Rotational direction left ON*

0/1 Reserved

0/1

Bit 0 to switch parameter set

00 = Parameter set 1 01 = Parameter set 2

10 = Parameter set 3 11 = Parameter set 4

0/1

Bit 1 to switch parameter set

* If Bit 12=0, then "Direction of rotation right ON" applies

7.2.1.1 Control word (STW)

The control word (STW) is the first word transferred to the frequency inverter in the process data section in an order telegram. For example, a control word "Ready for switch-on" corresponds to 047E ultimately enabled with 047F

(hex)

. The FI is

(hex)

Meaning of the individual bits:

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PZD1

PZD2

PZD3

PZD4

ZSW

IW1

IW2/3

10 9 8 7 6 5 4 3 2 1 0

Bit

Value

Meaning

Remarks

0 0 Not ready to start

Ready to start

Initialisation completed, charging relay ON, output voltage disabled

1 0 Not ready for operation

Causes: No command has been activated, fault is signaled, OFF2 or OFF3 activated, starting disabled state activated

1 Ready for operation

ON command activated, no faults present. The inverter can be started with the command ENABLE OPERATION

2 0 Operation disabled

1 Operation enabled

The output voltage is enabled; ramp to the existing setpoint

3 0 No fault

1 Fault

Drive fault resulting in stoppage; this state is changed to starting disabled after the fault has been successfully acknowledged

4 0 OFF 2

OFF2 command applied

1 No OFF 2

5 0

OFF 3

OFF3 command applied

1 No OFF 3

6 0

Starting not disabled

Starting disabled

Switches first to OFF1, then to ready-to-start status

7 0 No warning

Warning

Drive operation continues, no acknowledgement necessary

8 0 Actual value not O.K.

Actual value does not match the setpoint (with posicon: failure to reach setpoint position)

1 Actual value O.K.

Actual value matches required setpoint (setpoint has been reached) (with posicon: setpoint has been reached)

9 0 Local guidance

Guidance on local device has been activated

1 Guidance requested

The master has been requested to assume guidance.

10 0

1 Bit 10 active

Bus bit 10 from the status word is set. For further details of function, please refer to parameter P481 and Section 7.2.1.8.

11 0

1 Rotational direction:

right

Inverter output voltage is turning right

12 0

1 Rotational direction:

left

Inverter output voltage is turning left

13 0

1 Bit 13 active

Bus bit 13 from the status word is set. For further details of function, please refer to parameter P481 and Section 7.2.1.8.

0/1

Currently active parameter set 0

00 = Parameter set 1 01 = Parameter set 2

10 = Parameter set 3 11 = Parameter set 4

0/1

Currently active parameter set 1

7.2.1.2 Status word (ZSW)

In the inverter response telegram, in the area of the process data the status word (ZSW) is transferred as the first word. For example, the status word "Ready for switch-on" corresponds to 0B31 status word "Inverter operating" corresponds to 0B37

(hex)

. For example, the

(hex)

Meaning of the individual bits:

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7 PROFIBUS DP data transfer

PZD1

PZD2

PZD3

PZD4

STW

SW1

SW2

SW3

10 9 8 7 6 5 4 3 2 1 0

Setting

100% is equal to

Off

Setpoint frequency, actual frequency PID, actual frequency PID limited, actual frequency PID monitored, frequency addition, frequency subtraction, maximum frequency

Maximum frequency

Torque current limit

Torque current limit (P112)

Current limit

Inverter rated current

Servo mode torque

Rated torque

Torque precontrol

Torque precontrol (P214)

PZD1

PZD2

PZD3

PZD4

STW

SW1

SW2

SW3

7.2.1.3 Setpoint 1 (SW1)

The function of the first setpoint is set in the parameter "Function bus setpoint 1" (SK 200E: (P546[01]) or SK 500E: (P546)) (see relevant frequency inverter manual).

In the order telegram, setpoint 1 follows immediately after the control word. Setpoint 1 is pre-set to the transfer of a setpoint frequency (16 bit value).

The setpoint is transferred as an integer in the range -32768 to 32767 (8000 hex to 7FFF hex), whereby 16384 (4000 hex) is exactly 100% and -16383 (C000 hex) corresponds to -100%. Due to this resolution, setpoints (depending on function) of up to ± 200% can be transferred.

A setpoint of 100% corresponds to the respective nominal value:

7.2.1.4 Setpoints 2 and 3 (SW2/3)

If the PPO type 2 or 4 is used, in addition to setpoint 1, a second setpoint can be transferred in word PZD3 and a third setpoint in PZD4.

The definition of these two setpoints corresponds to that of setpoint 1.

However, the transfer of a third (maximum 16 Bit) setpoint is only possible if the other two setpoints are also 16 Bit values.

If the transfer of a 32 bit setpoint is necessary (Example: setpoint position), this must be divided into two 16 bit values, i.e. into two PZDs (position High and Low word). It does not matter in which of the three process data words (PZD2 and above) the two position words are transferred.

The definition in the frequency inverter can then, for example, be made via the parameters: PZD3: „Bus function - setpoint 2" (SK 200E / SK 54xE: (P546[-02]) or SK 500E (P547)) and PZD4: „Bus function - setpoint 3" (SK 200E / SK 54xE: (P546[-03]) or SK 500E (P548))

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PZD1

PZD2

PZD3

PZD4

ZSW

IW1

IW2

IW3

10 9 8 7 6 5 4 3 2 1 0

PZD1

PZD2

PZD3

PZD4

ZSW

IW1

IW2

IW3

Example

If a position setpoint is to be transferred (Prerequisite: posicon inverter functionality) this can be performed either as a 16 bit or 32 bit value. The resolution is always 0.001 rotations/step.

A value range of +32767 (= 32.767 revolutions) to -32768 (= -32.768 revolutions) is possible as a 16 Bit value. Here, exactly one PZD word is required in order to transfer the position.

The full position range of +/- 50000.000 revolutions is available as a 32 Bit value. Here, exactly two PZD words are required in order to transfer the position.

7.2.1.5 Actual value 1 (IW1)

The function of the first actual value is set in the parameter "Function bus actual value 1" (SK 200E: (P543[01]) or SK 500E: (P543)) (see relevant frequency inverter manual).

In the order telegram, actual value 1 follows immediately after the control word. The actual value 1 is pre-set to the transfer of the current output frequency of the frequency inverter (16 bit value).

The actual value is transferred as an integer in the range -32768 to 32767 (8000 hex to 7FFF hex), whereby in the settings "actual frequency", "actual speed", "current" and "torque current", the values 16384 (4000 hex) exactly correspond to 100% and -16383 (C000 hex) correspond to exactly -100%. Due to this resolution, setpoints (depending on function) of up to ± 200% can be transferred.

7.2.1.6 Actual values 2 and 3 (IW2/3)

If the PPO type 2 or 4 is used, in addition to actual value 1, a second actual value can be transferred in word PZD3 and a third actual value in PZD4.

The definition of these two actual values corresponds to that of actual value 1.

If the transfer of a 32 bit actual value is necessary (Example: actual position), this must be divided into two 16 bit values, i.e. into two PZDs (position High and Low word).

The definition in the frequency inverter can then, for example, be made via the parameters: PZD3: „Bus function - Actual value 2" (SK 200E / SK 54xE: (P543[-02]) or SK 500E (P544)) and PZD4: „Bus function - Actual value 3" (SK 200E / SK 54xE: (P543[-03]) or SK 500E (P545))

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7.2.1.7 BIT8 and BIT9 control word

Up to 2 inverter functions can be set directly via the bus master or the PLC by means of the control word. For this, the required digital function (see list in parameter P420) must be assigned to Bit 8 of the control word via parameter (P480 [-11]). The same procedure should be applied to Bit 9 of the control word and the function assigned in parameter (P480 [-12]).

Example:

The values of analog inputs 1 and 2 are to be switched off as necessary via the PROFIBUS master on the frequency inverter.

Solution: Set parameter (P480 [-11]) to function "19" "Analog input 1 ON/OFF" Set parameter (P480 [-12]) to function "20" "Analog input 2 ON/OFF" In order to process the value from analog input 1 in the frequency inverter, Bit 8 must be set in the control

word. Otherwise the value will not be taken into account by the frequency inverter. In order to process the value from analog input 2 in the frequency inverter, Bit 9 must be set in the control

word. Otherwise the value will not be taken into account by the frequency inverter.

Alternatively, the digital inputs 1 and 2 of the SK xU4-... module can also be processed directly by the frequency inverter. For this, the FI which is allowed access to the inputs must be selected in parameter (P154[-01]). Assignment of the functions is carried out via parameter (P480[-11]) or (P480[-12]) as described above.

7.2.1.8 BIT10 and BIT13 status word

In the same way as Bit 8 and 9 of the control word, 2 functions can be described in the status word, which set Bits 10 or 13 on the occurrence of the relevant inverter status. The list of possible functions corresponds to the "Relay function" or the "Digital output function" (see parameter (P434)).

Example:

The inverter warning "Overcurrent warning" is to be communicated directly in the status word of the frequency inverter.

Solution: Set parameter (P481 [-09]) to function "9" "Overcurrent warning" If the conditions for the triggering of the "Overcurrent warning" are fulfilled in the frequency inverter, the

inverter sets Bit 10 of the status word to the value "1".

Alternatively, the digital outputs 1 and 2 of the SK xU4-... module can also be processed directly by the frequency inverter. For this, the FI which is allowed access to the inputs must be selected in parameter (P154[-02]). Assignment of the functions is carried out via parameter (P481[-09]) or (P481[-10]) as described above.

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Status

Bit 6

Switch-on

disable

Bit 5

Emergency

stop

Bit 4

Disable

voltage

Bit 3

Fault

Bit 2

Operation

enabled

Bit 1

Standby

Bit 0

Ready for

switch-on

Not ready to start

0 X X 0 0 0 0

Starting disabled

1 X X 0 0 0 0

Ready to start

0 1 1 0 0 0 1

Activated 0 1 1 0 0 1

Operation enabled

0 1 1 0 1 1 1

Fault 0 X X 1 0 0

Error active

0 X X 1 1 1 1

Emergency stop active

0 0 1 0 1 1 1

7.2.2 The status machine

The frequency inverter passes through a status machine. The changes between various states are triggered by the respective control commands in the process data control word. The actual status is returned in the process data status word.

After switching on, the frequency inverter is in Switch-on disabled status. This status can only be ended by transmitting the “Shut down (Off 1)” command.

The answer to a master telegram normally does not yet contain a reaction to the control command. The controller has to check the answers from the slaves as to whether the control command has been carried out.

The following bits indicate the status of the frequency inverter:

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Switch-on

disabled

Standby

Activated

Operation enabled

Fast stop active

Error reaction

active

Fault

From all device statuses

3 4 5 6 8

4 5

Not on standby

Switching on the inverter

Loading relay applied

Fault

Error reaction complete

Bit0 = 0:Shut down & Bit1 = 1: Enable voltage & Bit2 = 1: Enable pulses (xxxx x1xx xxxx x110)

Bit 3 = 0:Disable operation Bit0 = 1:Sw itch on

Bit3 = 1:Enable operation

Bit2 = 0:Fast stop

Bit1 = 0:Disable voltage

v Bit2 = 0:Fast stop

Priority of control commands:

1. Disable voltage

2. Fast stop

3. Shut down

4. Enable operation

5. Switch on

6. Disable operation

7. Reset error

Designation of statuses:

1: Bit 0 = 0 2: Bit 6 = 1 3: Bit 0 = 1 4: Bit 1 = 1 5: Bit 2 = 1 6: Bit 5 = 0 7: Bit 2 & Bit 3 = 1 8: Bit 3 = 1

2 3

3 64

f = 0 reached (fast stop complete)

Bit701

Error acknowledgement

Control bits

0. Ready for operation / shut down

1. Disable / enable voltage

2. Enable pulses / emergency stop

3. Disable / enable operation

4. Operation condition / block RUE

5. Enable / stop RUE

6. Enable / disablesetpoint

7. Error acknowledgement (01)

10. Control data valid / invalid

11. Rotation right

12. Rotation left

14. Parameter set Bit 0

15. Parameter set Bit 1

Bit4 = 0:Move down emergency stop ramp and

remain in 'Operation enabled'

Bit5 = 0:Hold frequency Bit6 = 0:Setpoint = 0%

Bit0 = 0:Shut down

Bit3 = 1:Enable operation

& Bit0 = 1: Sw itch on

Internal status machine

7 PROFIBUS DP data transfer

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ATTENTION

If parameter changes are made (i.e. requests via the PKW area by the control master), care must be taken that the maximum number of permissible writing cycles to the frequency inverter EEPROM (100,000 cycles) is not exceeded. I.e. continuous cyclical writing must be prevented.

For certain applications it is sufficient if the values are only saved in the RAM memory of the frequency inverter. The corresponding setting is made via parameter (P560) "Save in EEPROM".

1 2 3 4

PKE

IND

PWE1

PWE2

10 9 8 7 6 5 4 3 2 1 0

SPM

PNU

NOTE

With the PROFIBUS DP protocol, the inverter parameters are mapped in the range from 1000 to 1999 i.e. for parameterisation via the bus, 1000 must be added to the parameter numbers (e.g. P508  PNU=1508).

Both the order label and the response label are abbreviated as AK. Therefore, care must be taken when reading or interpreting the order processing description in this section.

7.2.3 Parameter area (Parameter code value PKW)

Using the PKW mechanism, parameter processing can be carried out in the cyclical data traffic. For this the master formulates an order and the inverter formulates the appropriate response to this. The parameter area is only used for transfer with PPO type 1 and PPO type 2.

In principle, the parameter range consists of a parameter identification, in which the type of order (Write, Read etc.) and the relevant parameters are specified. Individual parameter sets or array elements can be addressed with the aid of the Index. The parameter value contains the value to be written or read.

Note: A parameter order must be repeated until the inverter responds with the corresponding response

telegram.

7.2.3.1 Parameter label (PKE)

The order or response and the associated parameters are encrypted in the parameter label (PKE).

The parameter label (PKE) is always a 16 bit value. This is divided into the following areas:

PNU: Bits 0 to 10 contain the number of the required parameter (PNU), or the number of the current

parameter in the response telegram of the frequency inverter. The parameter numbers (PNU) for the particular frequency inverter series can be found in the relevant frequency inverter manual.

SPM: Bit 11 is the toggle-bit for spontaneous messages. This function is not supported! AK: Bits 12 to 15 contain the order or response label.

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7 PROFIBUS DP data transfer

Function

Response label positive

No order

Order parameter value

1 / 2

Change parameter value (word)

1 3 Change parameter value (double word)

2 4 Reserved

- 5 Reserved

- 6 Order parameter value (array)

4 / 5

Change parameter value (array word)

4 8 Change parameter value (array double word)

5 9 Order the number of array elements

Reserved

Additional orders for SK 200E frequency inverter

Change parameter value (array double word) without writing to the EEPROM

Change parameter value (array word) without writing to the EEPROM

Change parameter value (double word) without writing to the EEPROM

Change parameter value (word) without writing to the EEPROM

Function

No response

Transfer parameter value (word)

Transfer parameter value (double word)*

Transfer parameter value (array word)

Transfer parameter value (array double word)*

Order cannot be executed (with error number in PWE2)

Meaning of the values sent in the order label:

The following table lists all the orders which can be transferred from the master to the inverter. The right-hand column contains the response, which is normally sent (response label positive). Only certain response labels are possible, depending on the order label. In case of error (AK negative) the inverter will always supply the value

7 in the response label (AK) to the master.

Meaning of the values sent in the response label:

* Only for PPO type 2 and PPO type 4

As long as an order has not yet been executed, the inverter provides the response to the last order. Therefore the master must always check whether the received response matches the order sent.

For the plausibility check, the value in the response label (AK), the received parameter number (PNU) with the corresponding Index (IND) as well as the current parameter value (PWE) can be used for the description of parameters.

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No.

Meaning

Invalid parameter number

Parameter value cannot be changed

Lower or upper value limit exceeded

Incorrect sub-index

No array

Invalid data type

Only resettable (only 0 may be written)

Description element cannot be changed

Description data not available or for acyclic access a READ command was triggered without a previous WRITE command

101

the frequency inverter to be accessed does not exist

102

the frequency inverter to be accessed does not exist

103

The frequency inverter to be accessed exists, but the query does not arrive, as the frequency inverter is being heavily queried by another participant.

201

Invalid order element in the last order received

202

Internal response label cannot be depicted

Error messages if the order cannot be executed In the response label "Order cannot be executed" (AK = 7), then an error message is added to the parameter

value (PWE2) of the inverter response. The meanings of the transferred values are:

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7 PROFIBUS DP data transfer

1 2 3 4

PKE

IND

PWE1

PWE2

10 9 8 7 6 5 4 3 2 1 0

P1-P4

No information / all 0

Array 1-64

P1-P4

Sub-index

Array element

Parameter set

Index

5 (000101

BIN

)

2 (01

BIN

)

HEX

= 0001 0101

BIN

21 (010101

BIN

)

4 (11

BIN

)

HEX

= 0101 0111

BIN

NOTE

32 Bit parameter values are only used with the posicon option. All relevant parameters are described in the additional posicon instruction manual.

7.2.3.2 Parameter index Sub-index (IND)

The structure and function of the parameter index (IND) depends on the type of parameter to be transferred. For values which depend on the parameter set, the parameter set can be selected via Bits 8 and 9 of the Index (IND) (0 = parameter set 1, 1 = parameter set 2, ...).

If the parameter to be processed is also an array parameter (e.g. position array for the PosiCon option), then the sub-index of the required parameter can additionally be accessed via Bit 10 to Bit 15 of the sub-index (0 = array element 1, 1 = array element 2, …):

If a paramenter is not dependent on the parameter set, then Bit 8 -15 are used for the sub-index. The structure of individual parameters and the values which can be called up via the sub-indices can be found in

Section 5 "Parameterisation" of this supplementary manual or in the relevant section of the inverter manual. For the use of sub-indices, one of the numbers 6, 7, 8 or 11, 12 must be used as the order label (see

previous section), in order to be effective.

7.2.3.3 Parameter value (PWE)

The transfer of the parameter value (PWE) is made in PPO types 1 and 2 and always as a word (16 bit) or double word (32 bit) according to the parameter. Only one parameter value can be transferred in a telegram. Only one parameter value can be transferred in a telegram.

A 32 bit parameter value comprises of PWE1 (higher value word) and PWE2 (lower value word). A 16 Bit parameter value is transferred in PWE2. For negative values the high word must be set to FFFF

hex

The parameter value is transferred as an integer value. For parameters with resolutions 0.1 or 0.01 the parameter value must be multiplied by the inverse of the resolution.

Example: A run-up time of 99.99 seconds is to be set.

99.99s  99.99 * 1 / 0.01 = 99.99 * 100 = 9999 Therefore the value 9999

= 270F

dec

is to be transferred.

hex

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

word 5 6

Byte

8 9 10

Designation

ZSW

IW1

Value

Bit

Value

HEX

Meaning

0 0 Parameter set Bit 1 off

14 0 Parameter set Bit 0 off

13 0 Reserved

12 0 Rotation left is off

1 W Rotation right is on

10 0 Reference value undershot

9 1 Bus controller

8 1 Setpoint = actual value

0 7 No warning

6 1 Starting disabled

5 1 No emergency stop

4 1 Voltage not disabled

0 0 No fault

2 0 Operation disabled

1 0 Not ready for operation

0 0 Not on standby

word 5 6

Byte

8 9 10

Designation

STW

SW1

Value

7.3 Example telegrams

7.3.1 Switch-on disabled → Standby

A frequency inverter is to be switched from the "Switch-on disabled" status (STW Bit 0 – 0), which is active when the device is switched on, to the "Standby" status (STW Bit 0 = 1). The PPO type 1 (Section 7.2) is used, however only the PZD channel is considered.

Procedure:

1) Check last status word (e.g. ZSW 0B 70)

2) Generate control word (STW 04 7E)

3) Check response telegram (ZSW 0B 31)

Procedure - Details

1) Check last status word (ZSW 0B 70)

2) Generate control word (STW 04 7E) The frequency inverter is set to Standby status with the following telegram.

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7 PROFIBUS DP data transfer

word 5 6

Byte

8 9 10

Designation

ZSW

IW1

Value

NOTE

The control telegram must be sent cyclically as the frequency inverter may not switch to the required status within the response time of a telegram.

3) Check response telegram (ZSW 0B 31) After changing to Standby status, the frequency inverter delivers the following response telegram:

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

word 5 6

Byte

8 9 10

Designation

ZSW

IW1

Value

word 5 6

Byte

8 9 10

Designation

STW

SW1

Value

word 5 6

Byte

8 9 10

Designation

ZSW

IW1

Value

7.3.2 Enable with 50% setpoint

A frequency inverter in the "Standby" status must be enabled for clockwise rotation with 50% setpoint. The PPO type 1 (Section 7.2) is used, however only the PZD channel is considered.

Procedure:

1) Check last status word (e.g. ZSW 0B 31)

2) Generate control word (STW 04 7F) and specify setpoint (SW1 20 00 (=50%))

3) Check response telegram (ZSW 0B 37, IW1 20 00)

Procedure - Details

1) Check last status word (e.g. ZSW 0B 31)

2) Generate control word (STW 04 7F) and specify setpoint (SW1 20 00 (=50%))

The frequency inverter accelerates the motor in the ramp. When the inverter reaches 50% setpoint, it responds with the following telegram.

3) Check response telegram (ZSW 0B 37, IW1 20 00)

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7 PROFIBUS DP data transfer

word 1 2 3 4

Byte

0 1 2 3 4 5 6 7 Designation

PKE

IND

PWE

Value

word 1 2 3 4

Byte

3 4 5 6 7 8 9

Designation

PKE

IND

PWE

Value

ATTENTION

For certain applications it is sufficient if the values are only saved in the RAM memory of the frequency inverter. The corresponding setting is made via parameter (P560) "Save in EEPROM".

7.3.3 Writing a parameter

When transferring parameter orders, it must be taken into account that the slave does not immediately respond to orders in the parameter channel of the master telegram, but a positive response can be delayed by one or more communication cycles. The master must therefore repeat the required order until the corresponding slave response is received. PPO type 1 or PPO type 2 must be selected (Section 7.2).

The parameter (P102) "run-up time" (PNU = 102 the PKW channel is evaluated). (Only the PKW channel is evaluated.)

As the acceleration time has a frequency-internal resolution of 0.01sec, a parameter value of 10 / 0.01 = 1000 (3E8

) must be transferred for 2 sec.

hex

Procedure:

1) Specify order label ("Change parameter value (array word)" → AK = 7)

dec

/ 66

) is to be set to the value 10sec in parameter set 3. (Only

hex

2) Select parameter (P 102

+ 1000 = P 1102 = P 44E

dec

hex

)

3) Select parameter set 3 (IND = 02)

4) Set parameter value (1000

dec

/ 3E8

hex

)

5) Check response telegram (positive for array word = 4)

The telegram is composed as follows in hexadecimal notation:

When the order has been fully implemented by the inverter, it responds with (hexadecimal):

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Transfer rate Baud rate [kBit/s]

9.6

19.2

45.45

93.75

187.5

500

1500

3000

6000

12000

Cable length [m] Cable type A

1200

1000

400

200

100

Parameter

Value

Number of wires

2 (twisted)

Impedance

150 Ω (3 to 20 MHz)

Capacitance

< 30pF/m

Loop resistance

< 110 Ω/km

Cable cross section

> 0.32 mm²

8 Additional information

8.1 Bus Configuration

In an industrial environment the correct installation of the Bus system is particularly important in order to reduce potential interference. The following points are designed to help prevent interference and problems right from the start. The installation guidelines are not complete and applicable safety and accident prevention guidelines must be complied with.

8.1.1 Laying the PROFIBUS DP cable

A bus segment consists of a maximum of 32 participants. Several segments can be connected together by means of repeaters. In this way, up to 126 participants can participate in reference data traffic. It should be noted that the reaction time increases as the number of participants increases.

The data transfer physics of the serial bus system by means of twisted two-wire cable (with connected shielding) is defined in the specification of the interference-proof RS485 interface.

For applications with potentially high electromagnetic interference (EMC) and for long distances, optic fiber cable should be used as the cable medium and fiber optic couplers should be used for connection.

8.1.2 Cable material

The frequency inverter is usually connected to the PROFIBUS DP system by a twisted, shielded two-wire cable. In EN 50 170, this bus cable is specified as cable type A. The guaranteed transfer speeds or transfer distances can only be achieved without errors if the specific cable parameters are complied with.

With these cable types, the following extensions in length result:

These cable length details are defined for a bus segment with 32 participants.

It must be noted that

 the maximum cable length determines the transfer rate and vice versa,  the transfer rate is set identically for all masters connected to the bus,  the slaves support the set baud rate (see GSD file).

The standard PROFIBUS DP cable must comply with the following cable specifications:

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8 Additional information

NOTE

The lower the shielding resistance of the PROFIBUS DP cable, the better the EMC quality. The electromagnetic compatibility (EMC) describes the normally required state, that technical devices do not interfere with each other due to electrical or electromagnetic effects.

Fixed cable

Freely laid cable

Bending radius of cable

Minimum radius 5 x cable diameter

Minimum radius 10 x cable diameter

Correct

Incorrect

NOTE

If earthing potential values are different, transient current may flow through shielding which is connected on both sides. This may be a danger to electronic components. Differences in potential must be reduced by means of adequate potential equalisation.

8.1.3 Cable layout and shielding (EMC measures)

If EMC measures are not in place, high-frequency interference which is mainly caused by switching processes or lightning often causes electronic components in the bus subscribers to be faulty and error-free operation can no longer be ensured.

Appropriate shielding of the bus cable reduces electrical interference which can arise in an industrial environment.

The best shielding characteristics are achieved with the following measures:

 Do not make cable connections shorter than 1m between bus participants  Avoid long connections between bus subscribers  Shield the bus cable on both ends with large-area connection to the plug housing  Avoid spur lines (above 1.5MBaud spur lines are no longer permissible)  Avoid extensions to bus cables via plug connectors

Bus lines should be laid with a minimum spacing of 20cm to other lines which carry a voltage higher than 60V. This applies to lines laid inside and outside of control cabinets.

Special attention should be paid to bending radii:

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

8.1.4 Recommendations of the PROFIBUS users´ association

Under www.profibus.com/pb/ important information in association with PROFIBUS can be found in the Internet, including:

 "Installation guidelines for PROFIBUS-DP/FMS", September 1998, Order No. 2.111  Guideline Assembling, Version 1.06, Order Number 8.021/8.022  Guideline Commissioning, Version, 1.02, Order Number 8.031/8.032  Planning recommendations: www.profibus.com/downloads

E.g.: PB-Planung-Beiheft_8041_V10_Aug09.pdf

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8 Additional information

Sealing ring

connection

thread

Double nipple

Sealing insert

Cable

Cone

Shielding mesh

Pressure screw

Direction of assembly

1 Pressure screw 2 Earthing insert 3 Inner earthing cone 4 Metric fitting 5 O-ring mounted

8.2 Cable glands and shielding connections

Nowadays, field bus systems are a normal part of plant technology. The sensitivity of these systems to electromagnetic interference (EMC) means that it is essential to protect bus systems from outside interference by means of uninterrupted or complete screening. Therefore the use of shielded cables and metal screw couplings or plug connectors has become standard. Assuming correct installation (e.g.: 360° screen connection

- including at contact points, compliance with tightening torques, bending radii, IP-protection classes (≥ IP66),…), the operational reliability of the field bus system can be optimised.

The EMC effect of a cable shield is largely dependent on its contacts to the housing and its earthing on one or both ends. The shielding effect of a housing must not be influenced by incoming or outgoing screened cables. It is recommended that the shield is exposed directly at the point of entry and connection of the cable gland with the reference potential surface and the use of an EMC cable. At the same time this opening in the housing is "sealed" against the electromagnetic field. The connection from the cable shield to the housing must have a DC and and inductive resistance which is as low as possible. This depends on the frequency. This low contact resistance is achieved by the use of a ring-shaped 360° contacting of the cable shielding and short connections to the housing via the connecting thread.

8.2.1 Fixed connection (cable gland)

Metallic EMC cable glands with a shielding concept should be used to minimise EMC problems.

These special M16 x 1.5 EMC cable glands must be fitted in the relevant connection unit (SK TI4-…(-BUS)) of the frequency inverter or the PROFIBUS DP module.

Mounting

For the M16 x 1.5 EMC cable gland, 5 mm of the shielding of the cable /conductor is exposed and slightly spread out. The insulating foil of the Profibus cable must be cut off and must not be folded back.

BU 0220 GB-0912 Subject to technical amendments 79

Function When the pressure screw is tightened, the sealing insert presses the shielding mesh onto the cone of the

earthing insert. The entire circumference (360°) of the shielding mesh is contacted. The mesh ends in the cable gland. This produces a large area, low resistance conductive connection between the shield, the earthing insert and the screw fitting and the housing.

For further information regarding the correct installation of EMC cable glands, please refer to the relevant manufacturer´s data sheets.

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

Flanged coupling

Flanged plug

Name

A coding

B coding

Example: Coupling

Format

M12

Coupling version

with coding groove

with coding pin

Plug version

with coding pin

with coding groove

Field of use

System bus CANopen DeviceNet 24V supply sensors and actuators

PROFIBUS DP

8.2.2 Connection with M12 round plug connectors

In order to implement detachable connections, the cable connections for the field and system bus and for sensors and actuators, as well as for the 24V supply voltage can be designed with plug-in connectors.

Here, freely adjustable M12 flanged connectors with metric M16 x 1.5 threads should be used for installation in the relevant housing ((SK TI4-…(-BUS)).

This allows the use of angled or straight M12 round plug connectors for the cable connection.

If required, Getriebebau Nord GmbH can equip the device to be delivered accordingly, or can enclose the required plug with the delivery.

EMC compatible assembly is carried out in the same manner as for the assembly of the cable glands (Section 8.2.1 "Fixed connection (cable gland) ").

8.2.3 Round plug connectors

Getriebebau Nord GmbH offers a selection of suitable plugs and couplings, which can be installed in the connection units of the frequency inverters or the field bus module, or enclosed with the delivery as required. The corresponding plugs, couplings and Y connectors are also commercially available. However, a limited selection can be obtained from Getriebebau NORD GmbH.

Coding

Round plug connectors are coded. Coding is by means of a pin or a groove on the contact base. The most common codings are the so-called A and B coding. This serves to protect against incorrect coupling of the various field bus systems.

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8.2.3.1 M12 flanged connector

System components

Description

Data

System bus

SK TIE4-M12-SYSS

Part. No. 275274506

M12 flanged plug to connect the incoming system bus cable

A-coded, 5-pin

PIN 1 n. c. PIN 2 +24V (brown) PIN 3 GND (blue) PIN 4 Sys-H (black) PIN 5 Sys-L (gray)

Plastic body in light blue

SK TIE4-M12-SYSM

Part. No. 275274505

M12 flanged plug to connect the outgoing system bus cable

A-coded, 5-pin

PIN 1 n. c. PIN 2 +24V (brown) PIN 3 GND (blue) PIN 4 Sys-H (black) PIN 5 Sys-L (gray)

Plastic body in light blue

External voltage supply

SK TIE4-M12-POW

Part. No. 275274507

M12 flanged plug to connect a 24V- supply

A-coded, 4-pin

PIN 1 +24V (brown) PIN 2 n. c. PIN 3 GND (blue) PIN 4 n. c. PIN 5 n. c.

Plastic body in black

Sensors and actuators

SK TIE4-M12-INI

Part. No. 275274503

M12 flanged plug to connect sensors and actuators

A-coded, 4-pin

PIN 1 +24V (brown) PIN 2 DI or DO (white) PIN 3 GND (blue) PIN 4 DI or DO (black) PIN 5 n. c.

Plastic body in black

PROFIBUS DP

SK TIE4-M12-PBR

Part. No. 275274500

Kit consisting of M12 flanged plug and flanged socket

M12 flanged plug to connect the incoming PROFIBUS DP cable

B-coded, 5-pin

PIN 1 +5V* (brown) PIN 2 PBR-A (green) PIN 3 GND * (blue) PIN 4 PBR-B (red) PIN 5 n. c.

Plastic body and screw cap in

violet

*PIN 1 and PIN 3 are only assigned in the M12 flanged socket

M12 flanged plug to connect the outgoing PROFIBUS DP cable

Pin designation of M12 plug

The pin designations of the M12 socket are the corresponding mirror image.

The following flanged plugs and flanged couplings are available for installation in devices.

8 Additional information

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

Supplier

Name

Article No. / Part No.

straight

angled

MURR Elektronik

M12 plug, 7…8.8mm, 3-pin, cutting type, IP67, shielded

7000-14201-0000000 /

Part. No. 275130073

---

MURR Elektronik

M12 plug, 6...8mm, 2-pin, screwed, IP67, shielded

7000-14005-0000000

---

Franz Binder GmbH

M12 plug, 6...8mm, 5-pin, screwed, IP67,

99 1437 810 05

99 1437 820 05 /

Part. No. 275130074

Supplier

Name

Article No. / Part No.

straight

angled

MURR Elektronik

M12 plug, 7...8.8mm, 3-pin, cutting type, IP67, shielded

7000-14221-0000000 /

Part. No. 275130075

---

MURR Elektronik

M12 socket, 6…8mm, 2-pin, screwed, IP67, shielded

7000-14025-0000000

---

Franz Binder GmbH

M12 socket, 6…8mm, 5-pin, screwed, IP67,

99 1436 810 05

99 1436 820 05 /

Part. No. 275130074

NOTE

For preference, pre-assembled Profibus cables and connection components should be used.

For certain applications, vibration-proof round plug connectors should be used.

A-Leitung/ A cable

B-Leitung/ B cable

A-Leitung/ A cable

B-Leitung/ B cable

8.2.3.2 M12 round plug connector (cable connector)

The following plug connectors are recommended by Getriebebau NORD GmbH. Plug connectors with a socalled Part No. can also be supplied by Getriebebau NORD GmbH.

M12 connector

B coded

M12 socket B coded

If required, ready-made profibus cables of various lengths can be obtained from the manufacturers listed here.

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8 Additional information

NOTE

In order to ensure a secure, sealed and vibration-proof connection, connecting components with hexagonal fittings should be used.

Special tools enable tightening to a defined torque (operational reliability).

Supplier

Name

Part no.

MURR Elektronik

M12 wrench set for M12 round connectors with calibrated torque of 0.6Nm

7000-99102-0000000

Franz Binder GmbH

M12 torque wrench for M12 round connectors with calibrated torque of 0.6Nm

07-0079-000

M12 wrench

8.2.3.3 Assembly tools

The observance of the tightening torques for making plug connections is of vital importance. For M12 plug connectors, the optimum torque is 0.6Nm.

Suitable assembly tools are commercially available.

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PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE

8.3 PROFIBUS DP technology and protocol

The PROFIBUS (Process Field Bus) is the fastest standardised (open) bus system for field use. This technology enables consistent communication down to the lowest field level and is widely used in production, process and building automation systems. PROFIBUS is standardised in the international standard IEC 61158. It is a multi-master system and therefore enables the joint operation of several automation, engineering or visualisation systems with decentralised peripheral devices on a common field bus. The protocol describes the process rules for the transfer of data. The protocol specifies both the format of messages as well as the flow of data in data transfer. A wide variety of field devices can therefore be easily interlinked. In case of failure of individual field devices, data transfer to the remaining bus subscribers continues uninterrupted.

The system configuration or bus structure can be implemented both as a mono-master system (only one master) and as a multi-master system (several masters).

8.3.1 Overview /Protocol architecture

The ISO/OSI layer model describes the communication between the individual participants (slaves) of a communication or automation system. Of the seven defined OSI layers, PROFIBUS uses layers 1, 2 and 7. PROFIBUS DP only uses layers 1 and 2 and the DP user interface.

 Layer 1 Physical layer defines the hardware, coding, speed etc. of data transfer  Layer 2 Connection layer describes the bus access procedure including data

security, i.e. it defines the physics of transfer

 Layer 7 Application layer defines the interface to the application program with the

application-orientated commands.

Layer 2 of the ISO/OSI model includes

 the general format for data transfer telegrams  the bus access mechanisms  the security mechanisms  the times to be complied with  possible transfer services.

The user only has a slight influence on the design of layer 2, as almost all services are included in the available PROFIBUS ASICs.

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8 Additional information

Diagram of telegram sequence

DP Slave 1

DP Slave 2

DP Slave 3

PROFIBUS

DP master Class 1

PROFIBUS

DP master Class 2

Token

DP Slave 4

8.3.2 Device types

PROFIBUS DP is an acronym for "Process Field Bus for Decentralised Peripherals" i.e. for the simple, rapid, cyclic and deterministic exchange of process data between a PROFIBUS DP master and the assigned PROFIBUS DP slaves connected to the field bus. The exchange of process data takes place between central automation devices such as PLCs, PCs or process control systems and decentralised field devices such as drive units, valves, analysis devices and frequency inverters. Exchange of process data is mainly carried out cyclically between the PROFIBUS DP participants (master ↔ slaves).

Each PROFIBUS DP system can consist of a wide range of different devices. These are divided into three classes:

 DP master Class 1 (DPM1) This master controls the cyclic reference data traffic, i.e. process data is

automatically exchanged with the DP slaves (I/Os) in a repetitive sequence. Typical devices for central control are memory-programmed control units (PLCs) or PCs.

 DP master Class 2 (DPM2) These masters are engineering, planning or operating devices (OP,

touch-panels). They can also access the bus acyclically and additionally enable the configuration and parameterisation of intelligent field devices such as frequency inverters. A DPM2 master does not need to be permanently present on the Profibus DP.

 DP Slave Slaves are peripheral devices with a direct interface to the I/Os, such as

I/Os, drive units, valves, measurement transducers, frequency inverters etc., which read in input information and output information to the peripheral devices.

PROFIBUS DP is specially designed for production automation and uses the RS485 standard as the transfer method. RS485 is the most commonly used transfer method and enables transfer rates of up to 12 MBaud. A shielded twisted wire cable is used.

PROFIBUS DP is designed both for rapid time-critical applications as well as for complex communication tasks.

A DP master Class 1 sends a status state (master status) to all assigned and connected slaves in a cyclic time interval which can be configured. If the operating parameter "Auto Clear" is set to "TRUE", the DPM1 master switches the outputs of all associated slaves to the safe condition, i.e. to "0" in case of failure of a slave.

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Direct

response

Confirmation with data

Command, data (if necessary)

DP master

DP slave

Command, data (if necessary)

DP master

DP slave

8.3.2.1 PROFIBUS master

PROFIBUS masters are field devices, which take the initiative for the exchange of data with field devices which operate as slaves. A master has the sole access right to slaves on the bus and determines the data transfer on the bus. The master may send out messages without request if it has an access right (token). In the case of several masters in a bus structure, only the master which currently has access rights may send messages. In contrast to the DP slaves, masters are designated as active participants, which have bus access rights for a limited period of time (token-holding time).

All data which a PROFIBUS master requires for the exchange of data with the slaves (e.g. I/O area), must be created before the system is started and loaded into the master ( GSD file).

The main tasks of a master are:

 exchange of data with the planned slaves  coordination of bus access  execution of error handling  providing the user with slave data

The following data transfer services are defined for the PROFIBUS DP:

 SRD: Send and request data with acknowledge.

In a message cycle, the master sends output data to a slave and as a response receives the input data back in the same cycle.

 SDN: Send data with no acknowledge, allows the transmission of broadcast telegrams

(unacknowledged telegrams).

The PROFIBUS DP master cyclically reads the input information from the connected DP slaves and cyclically writes the output information to the DP slaves.

PROFIBUS DP masters exist as

 modules within a PLC  CPU module with integrated PLC  standard PC modules  Stand-alone boards

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8.3.2.2 PROFIBUS slave

PROFIBUS DP slaves are peripheral devices such as I/Os, drive units, HMIs, valves, measurement transponders, frequency inverters. The DP slaves do not receive any access rights, i.e. they can only confirm messages from the master or send messages to the master when requested. DP slaves are designated as passive participants. A slave reads in input information and sends out output information to the peripherals. Because a slave only requires a small portion of the protocol, they are simple to implement in the PROFIBUS system configuration. The amount of input and output information depends on the device and can be up to a maximum of 246 input and 246 output bytes.

All data which a PROFIBUS master requires for the exchange of data (e.g. I/O area) with the slave and its implementation is provided by means of a DeviceMasterFile (GSD file) which is specific to the particular manufacturer.

The slaves are decentrally coupled to the PLC control unit or the automation device via the transfer medium (PROFIBUS cable and RS485) and complete the configuration of the system.

8.3.3 Performance levels

PROFIBUS DP defines 3 performance levels (basic functions).

 DP-V0 Basic functionalities for cyclic data traffic  DP-V1 Extensions for acyclic data traffic  DP-V2 Special extensions and additions for data traffic between slaves

Getriebebau NORD GmbH supports the PROFIBUS DP performance levels DP-V0 and DP-V1.

8.3.3.1 PROFIBUS DP-V0

DP-V0 describes the basic functionalities of the DP communication protocol.

 Cyclic exchange of process data / transfer of reference data between the DP master and slave(s)  Diagnosis specific to the station, module and channel  Telegram format: PPO types 1 - 4  Device classes: DPM1, DPM2 and slave  Access times*: Reading access (parameter queries) - approx. 30ms

Writing access (parameter changes) - approx. 50ms

* for 1 - 4 frequency inverters for each BUS technology unit

 Parameterisation is possible with the use of PPO types 1 and 2

Note: The bus cycle time must be less than the program cycle time of the central automation device.

Data traffic between the DPM1 and the slaves is structured into the parameterisation, configuration and data transfer phases.

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Name

Meaning

Value range

Master address

0 to 126

Baud rate

Transfer rate

10 options (Section 8.1.2 "Cable material")

TSL

Slot Time

52 216-1 (bit times)

min T

SDR

Smallest Station Delay Responder

20 to 216-1 (bit times)

max T

SDR

Largest Station Delay Responder

20 to 216-1 (bit times)

QUI

Quiet Time

0 to 28-1 (bit times) (standard value =0)

SET

Setup Time

20 to 28-1 (bit times)

TTR

Target Rotation Time

20 to 224-1 (bit times)

GAP Update factor (token cycles)

1 to 100 (Standard value = 10)

HSA

Highest Station Address

2 to 126 (Standard value = 126)

Max retry limit

Maximum retries (number of repeat telegrams)

0 to 8

8.3.3.2 PROFIBUS DP-V1

Amongst other things, DP-V1 contains additions for process automation and a series of event-related functions, in particular acyclic data traffic.

 Acyclic exchange of process data for parameterisation, operation, observation and alarm processing of

intelligent field devices in parallel with the cyclic reference data traffic.

 Diagnostic functions, status alarm, update alarm and alarm processing specific to the manufacturer.  Exchange of data during the DP slave initialisation phase  DP-Master Class 2 - Communication (Section 8.3.2 "Device types" - E.g.: touch panel)  DP master - master communication (between masters)

Acyclic data traffic, which is made possible by DP-V1 allows the parameterisation and calibration of the connected field devices simultaneously to the cyclic exchange of data.For this, a four-word I/O module is used, which corresponds to the Parameter Label Value (PKW) section of PPO types 1 and 2 (see also Section 7.2 "PROFIBUS DP PPO types").

Up to 4 frequency inverters connected via a BUS technology unit can be managed independently from the master via this channel. A DP master Class 1 (DPM1, e.g. PLC or PC) can simultaneously access up to three DP master Class 2 (DPM2, engineering, planning or control devices) in parallel to a technology unit.

Requirements by more complex applications and devices (field devices for process automation, intelligent operating and observations devices, frequency inverters), which often require parameterisation during operation, can therefore be easily implemented.

With the use of this performance class, the parameter values are only rarely changed in comparison to the cyclic measurement values.

8.3.4 Terminology (selection)

8.3.4.1 Bus parameters

Bus parameters are settings which define the time-related behaviour on the physical PROFIBUS DP. The following standardised parameters are set in the DP master by means of the configuration tool. In more recent configuration tools, this is usually carried out automatically:

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8 Additional information

Diagram of bus cycle time

8.3.4.2 Transfer rate (baud rate)

The processing of all DP slaves describes a cycle. The time required for this depends on the transfer rate, the number of DP slaves and the net data to be sent.

For the transfer of 512 bit input and 512 bit output data divided over 32 bus participants, the PROFIBUS DP requires approx. 1ms with a transfer rate of 12 Mbit/s.

A baud rate of 1.5Mbit/s extends the average cycle time to approx. 6ms.

8.3.4.3 FREEZE and SYNC mode

In addition to the automatic participant-related transfer of reference data, DPM1 masters can also simultaneously sent some control commands to the bus participants for synchronisation of the DP slaves. These control commands are sent as multicast (transfer of messages from a point to a group). The following only lists and describes some of the operating modes/control commands. Detailed information about the basic functionalities is explained in the relevant specialist PROFIBUS DP books.

Note: FREEZE and SYNC functions are used e.g. in applications which require synchronisation.

(simultaneous control or acceptance of new setpoints for several DP-slaves or the simultaneous recording of actual process values)

Control command FREEZE The PROFIBUS DP master sends a FREEZE control command to one or a group of DP slaves (PROFIBUS DP technology unit). The slaves which are addressed in this way "freeze" their current status (actual values). The transfer of the data to the DP-master is then carried out cyclically. The "frozen" data is retained until it is updated by a renewed FREEZE command, or the status is revoked by an UNFREEZE command.

Control command SYNC The PROFIBUS DP master sends a SYNC control command to one or a group of DP slaves (PROFIBUS DP technology unit). The slaves which are addressed in this way "freeze" their current setpoints. The following incoming setpoints are saved in the DP-slave, however, they are not effective for the process. The saved data is switched to the outputs after the next SYNC command. In the following cycle, an UNSYNC command causes the new setpoints to be adopted and ends SYNC operation.

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parameter

PKW

Reading

and writing of

DP master

DP Slave 1

DP Slave 2

DP Slave 3

DP Slave 1

DP Slave 2

DP Slave 3

DP Slave 2

DP Slave 1

DP Slave 2

Cyclic PZD

Acyclic PKW

Cyclic PZD

Reading and writing of the

process data

PZD

PROFIBUS DP

DP-V1

8.3.4.4 Cyclic and acyclic data traffic

The PROFIBUS technology units enable field bus access to all parameters and functions of the frequency inverter.

Cyclic reference data traffic (process data) enables rapid control of bus participants. Via the standardised process data channel (parameter process data object (PPO)) setpoints (setpoint frequency, position setpoints, current limits etc.) are transferred from the automation device to the frequency inverter. Via the same process data channel, actual values (actual frequency, actual position, current values, error numbers etc.) and status information is read back from the frequency inverter to the automation device. Selection of the PPO type is carried out via the hardware manager (Section 4.2.2 ). The SK xU4-PBR bus module automatically detects the PPO type which is used and sets it for communication to the frequency inverter.

However, some applications require interventions by the user (adaptation of parameters). These interventions can be carried out

 cyclically via the parameter code value channel (only PPO types 1 or 2 and only for frequency inverter

parameters) within the process data, or also

 acyclically via special READ / WRITE commands according to the PROFIBUS DP-V1 specification.

Parameter adaptations of the Profibus module SK xU4-PBR (parameter (P150) ... (P154) can only be carried out via acyclic data communication.

The acyclic data traffic is carried out parallel to the cyclic reference data traffic of the process information during operation and can only be used for parameterisation. For the acyclic data traffic, a 4 byte data block, which corresponds to the PKW component of PPO types 1 and 2 is transferred via the PROFIBUS DP.

The acyclic exchange of data sets can extend over several bus cycles or their "gaps".

With SIMATIC STEP 7 applications, two ready-made system modules are available for the handling of acyclic data traffic.

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Reading parameters Within the DPM2 master program, the system module SFB52 "RDREC" (read record) is used to read

parameters. This system module reads the data set of the addressed component (module) of a DP slave. This may be a central module or a decentralised component (PROFIBUS DP), a technology unit. If an error occurs during data transfer, this is indicated via an output parameter (ERROR and STATUS) of the system module.

Several settings must be noted for the use of this system module. If for example a DP-V1 slave is planned via GSD (Rev. 3 or later), the DP master must be set to "DPV1".

Otherwise (example setting "S7 compatible") no data sets may be read with SFB 52 from the I/O modules in the application program, as the DP master would be addressed to the wrong slot (planned slot +3).

The SFB 52 "RDREC" is an asynchronous SFB, i.e. processing extends over several SFB call-ups.

Sequence

To read the parameter of the frequency inverter, the PROFIBUS DP master first sends a WRITE control command to the relevant DP slave (PROFIBUS DP technology unit), which confirms the query. A READ command triggers the transfer of the parameter data to the control unit.

The issue of a read command (SFB 52) without a previous write command (SFB 53), results in an error message (E009) by the relevant frequency inverter.

Writing parameters Within the DPM2 master program, the system module SFB52 "WRREC" (write record) is used to write

parameters. This system module writes (transfers) the data set of the addressed component (module) of a DP slave. Several interface settings in the DP master interface must be noted to ensure correct operation.

The SFB 53 "WRREC" is an asynchronous SFB, i.e. processing extends over several SFB call-ups.

Sequence

To change the parameter of the frequency inverter, the PROFIBUS DP master first sends a WRITE control command to the relevant DP slave (PROFIBUS DP technology unit), which confirms the query. If necessary, the transferred parameter changes can be checked by means of a READ command.

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8.3.4.5 Device master data (GSD file)

All performance features of the NORDAC PROFIBUS DP module are collated in a device master file (electronic data sheet). The structure, content and coding of the device master file (GSD) are used (standardised in a readable ASCII text file) for simple PROFIBUS DP communication. The GSD file enables the convenient planning of NORDAC frequency inverters via tools from various control unit suppliers. In addition to general information, the GSD file also contains specifications for communication, which are specific to the manufacturer. These specifications are structured into three sections:

 General Data Details of the manufacturer and the device, software and hardware version

numbers, supported transfer rates etc.

 Master data Specific parameter details for the master, upload and download facilities.  Slave data Specific parameter details of the slave, number and type of I/O channels,

diagnostic texts and module details for modular device structures.

The standardised GSD files are included in the scope of delivery of the devices (frequency inverters) (enclosed documentation CD (Electronic Product Documentation)) and are available for download free of charge from the Getriebebau NORD GmbH homepage under www.nord.com.

For the decentralised SK 200E device series with the associated technology units SK CU4-… or SK TU4-… the GSD file

NORD0BA8.GSD (SK 200E technology unit, incl. DP-V1, 12MBaud)

must be implemented. This GSD file differs from the previous files provided by Getriebebau NORD GmbH, among other things in the

extension of the DP-V1 functionality. In the SIMATIC S7 Manager, the configuration data is stored under the Slave_Family (Code 1 = Drives), e.g.

under the heading Further field devices under Drive units in the catalogue directory NORD@DPV1 of the hardware configuration manager. By means of parameterisation Auto_Baud_supp (Value = 1) the automatic baud rate detection is switched on. The function Set_Slave_Add_supp (Value = 0) is disabled, so that the slave address cannot be set from the DP master. The setting of several modules is supported by the setting Modular_Station (Value = 1). For further information, please refer to the above GSD file.

The PROFIBUS users´ organisation archives this information for all manufacturers and provides this in Internet.

8.3.4.6 Ident number

In order for the PROFIBUS DP master to uniquely identify the various DP devices, the slaves are labelled with an ident number which is specific to the manufacturer. On start-up of the PROFIBUS DP master, the ident numbers of the connected DP slaves are compared with the ident numbers in the specified planning data in the planning tool.

In order to rule out planning errors and malfunctions, the transfer of reference data only begins once the correct device types have been connected to the correct station addresses on the bus and have been recognised by the master.

The ident numbers for Profibus modules from Getriebebau NORD are as follows: 7531 0BA8

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all Profibus modules for the device series except for SK 200E → SK TU4-… and SK CU4-…

hex

Technology units for the device series SK 200E → SK TU4-… and SK CU4-…

hex

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8 Additional information

8.3.4.7 Consistent data transfer

A PLC can normally only consistently transfer double words by means of I/O memory access. For longer data formats (PKW channel always / PZD data with PPO2 or PPO4) system functions (e.g. SFC 14, consistent data reading / SFC15, consistent data writing) must be used.

8.3.4.8 I&M function

I&M functionality is only supported to a limited extent by Getriebebau NORD PROFIBUS technology units SK CU4-PBR and SK TU4-PBR (…-M12) via the acyclic communication channel (DP-V1). The I&M functions specify the manner of a unified representation of the data which describe PROFIBUS DP devices (electronic type plate). DPM2 masters, such as engineering tools can read and interpret the data of the electronic type plate via an allocation/encryption on the PNO Internet homepage. Among other things, information concerning the manufacturer´s designation, hardware and software version numbers and details of association with a particular profile are transferred.

The Getriebebau NORD Manufacturer ID is: 393

dec

The company name is: NORD Electronic DRIVESYSTEMS GmbH.

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SYSTEM BUS

Configuration Example

1. FI

2. FI

3. FI

4. FI

1. I/O

Extension

8. I/O

Extension

Field Bus

Option

additional participants (I/O extensions, CANopen encoder

Note:

Terminal77 = System bus + (CAN H) Terminal78 = System bus - (CAN L) Terminal numbers may differ

8.4 System bus

SK 2xxE series frequency inverters and components communicate with each other via the system bus. This bus system is a CAN bus with CANopen protocol. Up to four frequency inverters and their associated components (field bus module, absolute encoder, I/O modules etc.) can be connected to the system bus. Integration of the components into the system bus does not require any specific knowledge of the bus on the part of the user.

Only the proper physical configuration of the bus system and if necessary the correct addressing of the participants need to be taken into account by the user.

The system bus address of the bus modules (SK CU4-… and SK TU4-…) is set to "5". The system bus address of the up to 4 frequency inverters which can be connected are set by means of DIP switches (see manual BU 0200) on the relevant frequency inverter, optionally between 32 / 34 / 36 and 38, whereby no address may be doubly assigned within a system bus system.

For detailed information regarding the system bus (physical structure, integration and addressing of further components) please refer to the inverter manual BU0200.

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NOTE

If possible, the reason for returning the component/device should be stated. If necessary, at least one contact for queries should be stated.

This is important in order to keep repair times as short and efficient as possible. On request you can obtain a suitable goods return voucher from Getriebebau

NORD GmbH.

8.5 Repairs

The device must be sent to the following address if it needs repairing:

NORD Electronic DRIVESYSTEMS GmbH

Tjüchkampstr. 37

26605 Aurich, Germany

For queries about repairs, please contact:

Getriebebau NORD GmbH & Co. KG

Telephone: 04532 / 401-515

Fax: 04532 / 401-555

If a frequency inverter or accessories are sent in for repair, no liability can be accepted for any added components, e.g. such as line cables, potentiometer, external displays, etc.!

Please remove all non-original parts from the frequency inverter.

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Address ASIC

Assigned or specified designation of a DP slave. Integrated circuit specific to the application

Baud rate

The transmission rate for serial interfaces in bits per second

Binary code

The designation for a code in which messages are communicated by "0" and "1" signals.

Bit / Byte

A bit (binary digit) is the smallest unit of information in the binary system. A byte has 8 bits.

Broadcast

In a network, all slave participants are addressed simultaneously by the master.

DPM1

DP masters Class 1 implement the reference data traffic to the DP slaves. The DPM1 is the central automation device for PROFIBUS DP.

DPM2

In addition to reference data traffic, Class 2 DP masters enable further event-controlled functions such as control, commissioning and planning tasks. The DPM2 is a planning or configuration device for PROFIBUS DP.

Protocol for decentralised peripherals. With PROFIBUS DP this describes the connection between the automation device and the bus participants and is a standardised specification.

DP-V0

The central control unit (bus master)cyclically reads the incoming information (e.g. actual values and status word) from the slaves and writes the outgoing information (e.g. control word and setpoints) to the slaves.

DP-V1

In addition to DP-V1 an acyclic data traffic between the central control unit (bus master) and the connected slaves can be carried out. Transfer of acyclic data is carried out in parallel to the cyclic data traffic between the bus participants.

GSD

Device master data Electronic data sheet

ISO

The International Standards Organisation is the international association of standardisation organisations and produces international standards in all fields, with the exception of electricity and electronics.

I&M

I&M stands for "Identification & Maintenance Functions" and is a functionality of the PNO for all PROFIBUS devices which support acyclic data traffic.

OSI layer model

The Open Systems Interconnection Reference Model defines the elements, structures and tasks necessary for data communication and assigns these to the times for the communication process in seven consecutive layers.

PROFIBUS DP

PROFIBUS DP is a field bus variant for production automation. RS485 interfaces are used for transfer. The DP communication protocol differs in its performance levels and various application profiles.

9 Index

Keyword Index:

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Bus error (fault)

Bus ready

BUS state (status)

Customer Unit (customer interface - internal technology unit)

D, DI, DIN

Digital IN

DEVICE error (fault)

DO, DOUT

Digital OUT

Decentralized peripheral

DEVICE state (status)

EMC

Electromagnetic compatibility

Frequency inverters

GND

Earth

HW IND

Hardware Index

I/O

IN / OUT, input and output

IW I&M

Actual value Identification & Maintenance Functions

P PKE PKW

parameter which depends on a parameter set Parameter identifier Parameter identifier Value

PNO

PROFIBUS users´ organisation

PPO PWE PZD STW

Parameter Process data Object Parameter Value Process data Control word

Software / Setpoint

Technologie Unit (external technology unit)

ZSW

Status word

Abbreviations used:

9 Index

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10 Keyword index

Accessories................................. 10

Actual value ................................ 64

Acyclic data traffic ................. 37, 90

Adapter cable RJ12 .................... 35

Addressing .................................. 27

Advertisements ........................... 29

Basic parameters ........................ 41

Baud rate .............................. 76, 89

Bus Configuration ....................... 76

Cable gland ................................. 79

Cable length ................................ 76

DPM2 ......................................... 85

EMC ..................................... 77, 79

EMC Directive ............................ 10

Error messages .......................... 56

Error monitoring ......................... 55

Example telegrams .................... 72

Extension modules ..................... 10

Faults ......................................... 55

FREEZE mode ........................... 89

Functional earthing ..................... 20

GSD file ................................ 36, 92

Parameterisation ........................ 41

Performance levels (DP-) ........... 87

PKE ............................................ 68

PKW ..................................... 58, 68

PPO types ...................... 28, 38, 59

Process data .............................. 60

PWE ........................................... 71

PZD ............................................ 58

Read parameter (acyclic) ........... 90

Repairs ....................................... 95

Response label ........................... 69

RJ12 ..................................... 34, 35

RoHS compliant ......................... 10

Round plug connectors............... 80

Cable material ............................. 76

CE ............................................... 10

coated ................................... 11, 12

Coding (plug) .............................. 80

Commissioning ........................... 36

Communication monitoring ......... 40

Connection .................................. 19

Consistent data transfer .............. 93

Control terminal parameters ....... 42

Control word................................ 61

Cyclic data traffic ................... 37, 90

Device master data ..................... 92

Diagnosis .............................. 29, 34

Digit inputs .................................. 42

Dimensions ................................. 17

DIP switch ............................. 27, 28

DP Slave ..................................... 85

DPM1 .......................................... 85

I&M functionality ......................... 93

Ident number .............................. 92

Information parameters ........ 48, 51

Installation .................................. 13

IP protection class .......... 10, 11, 12

LED ...................................... 29, 31

Load factory setting .................... 50

Low Voltage Directive .................. 3

Mounting .................................... 13

Order label ................................. 69

Parameter area .......................... 68

ParameterBox ............................ 34

Safety information ........................ 3

Setpoint ...................................... 63

Shielding............................... 77, 79

Signal statuses ........................... 31

SK CU4-PBR control connection 21 SK TU4-PBR control connection 23

Slot allocation ............................. 37

Standard parameters .................. 50

Standard version ........................ 10

Status machine ........................... 66

Status word ................................ 62

Structure of reference data ......... 58

Sub-index ................................... 71

Supplementary parameters ........ 44

SYNC mode ............................... 89

System bus ..................... 44, 45, 94

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10 Keyword index

Termination resistor ................... 27

Timeout ...................................... 40

Token ................................... 85, 86

Transfer rate ......................... 76, 89

Type code .................................. 11

USS Time Out ...................... 56, 57

Watchdog ................................... 40

Write parameter (acyclic) ............ 90

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