F31110 Encoder Serial Communications fault in siemens drive

F31110 Encoder Serial Communications fault in siemens drive indicates that the serial data transfer (EnDat/SSI) from encoder failed. 

Cause


1. Noise on data lines. 
2. Clock speed too high for cable length.
 

Remedy
 :
- Use twisted pair shielded cable. 
- Reduce clock frequency.

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