Applicable Systems
WJ200
Symptoms
Main microcomputer restarted multiple times; elevator stopped at nearest floor
Possible Causes
- Microcomputer watchdog reset
- power supply instability
- software crash
- EMI interference
Troubleshooting Steps
- Step 1: Check power supply stability
Verify the fault is resolved after completing this step. - Step 2: verify software version
Verify the fault is resolved after completing this step. - Step 3: inspect for EMI sources
Verify the fault is resolved after completing this step. - Step 4: check microcomputer
Verify the fault is resolved after completing this step.
How to Reset
Power cycle; replace microcomputer if persistent
Source: jxrunrui.cn/zhishi/1498.html; jingyan.baidu.com/article/a378c9...
Category: Elevator