Applicable Systems
WJ200
Symptoms
Overspeed detected during high speed running
Possible Causes
- Speed exceeded high-speed threshold
- governor tripped
- speed control failure
Troubleshooting Steps
- Step 1: Check governor
Verify the fault is resolved after completing this step. - Step 2: verify speed control
Verify the fault is resolved after completing this step. - Step 3: inspect encoder feedback
Verify the fault is resolved after completing this step. - Step 4: check brake function
Verify the fault is resolved after completing this step.
How to Reset
Emergency stop; power cycle after repair
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Category: Elevator
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