Applicable Systems
ThyssenKrupp Control System
Symptoms
MP board communication fault with MQC module - code 1F 20
Possible Causes
- MQC module communication lost
- CAN bus fault
- MQC module hardware failure
Troubleshooting Steps
- Step 1: Check CAN bus to MQC
Verify the fault is resolved after completing this step. - Step 2: verify MQC module power
Verify the fault is resolved after completing this step. - Step 3: replace if faulty
Verify the fault is resolved after completing this step.
How to Reset
Power cycle; re-initialize communication
Source: beijiaxin.cn; zhihu.com/p/577262471; renrendoc MC2-C manual
Category: Elevator