Siemens SINAMICS G120 Operating Instructions Manual page 94

Low voltage converters chassis devices with cu240b-2 and cu240e-2

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Table of Contents

4.5 Installing Control Unit

Additional options for wiring the digital inputs

Connecting P-switching contacts with an external

Connecting M-switching contacts with an external

power supply

Operating Instructions, 01/2017, FW V4.7 SP6, A5E34259001B AD

You must remove the jumper between

terminals 28 and 69 if it is necessary to

have electrical isolation between the ex‐

ternal power supply and the internal in‐

verter power supply.

It is not permissible that terminals 28 and

69 are connected with one another.

Converter with the CU240B-2 and CU240E-2 Control Units