Replacing An Encoder; Replacing The Encoder - Same Encoder Type - Siemens SINAMICS G120 Operating Instructions Manual

10.8

Replacing an encoder

Same interface, same encoder type
If you have to replace a defective encoder, then it is best if you use the same encoder type.
In this case, carry out the steps described in section "Replacing the encoder - same encoder
type (Page 355)".
Same interface, different encoder type
If you use an encoder of different type, carry out the steps described in section "Replacing
the encoder - different encoder type (Page 356)".
Different interface
If you connect the encoder through a different interface, you must carry out the
commissioning procedure again, see section Configuring a drive (Page 87).
10.8.1

Replacing the encoder - same encoder type

Procedure
Proceed as follows to replace a defective encoder by a new encoder of the same type:
1. Switch off the inverter power supply, including the external 24 V supply for the Control
2. Replace the encoder. Connect the encoder cable shield as specified, also see Section:
3. Switch on the supply voltages.
4. If you have replaced an absolute encoder, and you use this encoder to sense positions,
You have replaced the encoder.
Converter with the CU250S-2 Control Unit (vector)
Operating Instructions, 06/2013, FW V4.6, A5E31759476B AB
Unit and digital outputs.
Connecting inverters in compliance with EMC (Page 67).
then you must adjust the encoder. Additional information on this topic is available in
Section "Function Manual, Basic Positioner", also see Section: Manuals for your
converter (Page 461).
Corrective maintenance
10.8 Replacing an encoder
355