Applicable Systems
ThyssenKrupp Control System
Symptoms
Communication fault between CPU and MW/MW1 module - code 4A 00
Possible Causes
- MW/MW1 module communication lost
- CAN bus fault
- module hardware failure
Troubleshooting Steps
- Step 1: Check CAN bus to MW/MW1
Verify the fault is resolved after completing this step. - Step 2: verify 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