Applicable Systems
WJ200
Symptoms
Overspeed detected during low speed operation
Possible Causes
- Speed exceeded low-speed threshold
- speed feedback error
- speed control fault
Troubleshooting Steps
- Step 1: Check speed feedback signal
Verify the fault is resolved after completing this step. - Step 2: verify speed control parameters
Verify the fault is resolved after completing this step. - Step 3: inspect encoder
Verify the fault is resolved after completing this step.
How to Reset
Power cycle; adjust speed parameters
Source: jxrunrui.cn/zhishi/1498.html; jingyan.baidu.com/article/a378c9...
Category: Elevator