Applicable Systems
Fujitec Control System
Symptoms
Power monitoring signal remains in OFF state
Possible Causes
- Three-phase power unbalanced (phase loss, loose connection)
- voltage momentary drop
- power monitoring circuit fault
Troubleshooting Steps
- Step 1: Check three-phase power balance
Verify the fault is resolved after completing this step. - Step 2: verify connection tightness
Verify the fault is resolved after completing this step. - Step 3: inspect for voltage drops
Verify the fault is resolved after completing this step. - Step 4: check monitoring circuit
Verify the fault is resolved after completing this step.
How to Reset
Power cycle after power check
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Source: baijiahao (huasheng fujitec); toutiao.com/w/1874164112328836
Category: Elevator
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