Applicable Systems
Mitsubishi Elevator
Symptoms
Abnormally low speed detected
Possible Causes
- Speed below expected
- motor torque insufficient
- brake dragging
- encoder feedback error
Troubleshooting Steps
- Step 1: Check motor torque
Verify the fault is resolved after completing this step. - Step 2: verify brake release
Verify the fault is resolved after completing this step. - Step 3: inspect encoder
Verify the fault is resolved after completing this step. - Step 4: check speed control parameters
Verify the fault is resolved after completing this step.
How to Reset
Power cycle after check
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Source: baike.baidu.com; baijiahao (三菱故障代码); diantijob.com
Category: Elevator
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