Symptoms
PROFINET communication fault - drive did not receive controller telegrams within PROFINET monitoring time.
Possible Causes
- PROFINET controller stopped or abnormal
- PROFINET network data refresh time too short
- Communication cable broken or plug loose
- Electromagnetic interference on PROFINET line
Troubleshooting Steps
- Check PROFINET controller status
- Extend PROFINET network data refresh time if many stations
- Check communication cable for breaks or loose plugs
- Check PROFINET port for damage
- Use Siemens dedicated PROFINET cable, replace ordinary network cable
- Verify proper grounding of PROFINET controller and drive
- Keep PROFINET cable >20cm from power cables, max 100m length
- To suppress: P2118[x]=8501, P2119[x]=3 (may prevent normal stop - set emergency stop)
How to Reset
Reset by: 1) Correct the fault condition. 2) Press RESET button or send reset command via communication. 3) Verify fault does not recur during operation.
Source: Siemens SINAMICS G120 Common Faults Manual (ad.siemens.com.cn)
Category: Electrical