Operating instructions

Functions
5.11 Operation in fieldbus systems
CU240S and CU240E Control Units, FW 3.2
164 Operating Instructions, 03/2009, A5E02440075B AA
Setting the PROFIBUS address of the inverter
Two DIP switch blocks are located on the Control Unit. The PROFIBUS address of the
inverter is set using one of these. The DIP switch for the PROFIBUS address is, depending
on the firmware release, either located on the front of the CU below the operator and display
instrument (operator panel) or at the side of the CU.
21
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Figure 5-21 PROFIBUS DIP switches
Alternatively, the PROFIBUS address can be set via parameter P0918. The DIP switch
setting has priority over P0918.
CAUTION
When the PROFIBUS address is changed, the Control Unit needs to be switched off and on
again to activate the new address. This must be carried out by switching the power supply
off and then on again, regardless of whether the interface is supplied by the power supply
for the inverter or via its own 24 V power supply.
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21
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Figure 5-22 PROFIBUS interface, diagnostics, and address setting on the Control Unit
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