Clutch supervision

What does 84 mean?

Clutch slipping has been detected in a chain hoist, or there's an issue with the speed feedback from ENC2A-B, by the R&M Materials Handling Frequency Converter. This indicates a loss of mechanical integrity or an encoder signal problem, potentially due to worn components or incorrect parameter settings (P8.7).

• Clutch slipping detected (in chain hoists)
• Worn chain or chain drive (in chain hoists)
• Missing pulses in the signal connected to ENC2A-B
• Parameter P8.7 (ENC2 Stall Pulse Limit) value is too high

Click steps to track your progress.

1. 1

   Check and adjust the clutch mechanism

2. 2

   Check and replace the chain and chain drive if worn

3. 3

   Check or replace the speed sensor connected to ENC2A-B

4. 4

   Lower the value of parameter P8.7 (ENC2 Stall Pulse Limit)