F01030 Sign-of-Life Failure (Master Control) fault in siemens drive

F01030 Sign-of-Life Failure (Master Control) fault in siemens drive indicates that the internal communication between Control Unit and Power Unit is lost. 

Cause 
1. DRIVE-CLiQ cable disconnected or broken.
2. Heavy EMC interference affecting the cable.
 

Remedy
 

- Check DRIVE-CLiQ cables (green cables). 
- Ensure they are clicked in fully. 
- Check grounding.

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