Operating Instructions

4.5.11.1 Connecting the PROFIBUS cable to the inverter
Procedure
1. Integrate the inverter into the bus system (e.g. line topology) of the control using PROFIBUS
cables via socket X126.
Overview of the interfaces (Page 114)
The maximum permitted cable length to the previous station and the subsequent one is
100 m at a baud rate of 12 Mbit/s.
2. Externally supply the inverter with 24 VDC through terminals 31 and 32.
The external 24 V supply is only required if communications with the control should also
run when the line voltage is switched off.
You have now connected the inverter to the control system using PROFIBUS DP.
❒
Communication with the controller even when the supply voltage on the Power Module is
switched off
You must supply the Control Unit with 24 V DC at terminals 31 and 32 if you wish to maintain
communication with the control system when the line voltage is switched off.
In the case of brief interruptions of the 24 V power supply, the inverter may signal a fault without
communications with the control system being interrupted.
4.5.11.2 What do you have to set for communication via PROFIBUS?
Configuring PROFIBUS communication
You require the appropriate engineering system to configure PROFIBUS communication in
the PROFIBUS master.
If required, load the GSD file of the inverter into the engineering system.
Installing the GSD (Page 148)
Setting the address
Set the address of the PROFIBUS slave.
Setting the address (Page 148)
Setting the telegram
Set the telegram in the inverter as in the PROFIBUS master. Interconnect the telegrams in the
control program of the PROFIBUS master with the signals of your choosing.
Drive control via PROFIBUS or PROFINET (Page 223)
Application examples
You can find application examples for PROFIBUS communication on the Internet:
Installing
4.5 Connecting the interfaces for the inverter control
Converter with the CU230P-2 Control Units
Operating Instructions, 04/2018, FW V4.7 SP10, A5E34257946B AF 147