When the WBE1510-WD731-750 cycloidal reducer motor over-cuts and trips, follow this process to quickly troubleshoot:
1. Immediate power outage and preliminary judgment
Emergency treatment: Cut off the power immediately after tripping, touch the motor and reducer housing to determine whether the temperature is abnormal.
Manual turning: Check whether the transmission system is stuck.
Preliminary measurement: Use a multimeter to measure the three-phase current and voltage of the motor to initially distinguish whether it is an electrical fault or a mechanical fault.
2. Inspection by module
1. Electrical system inspection:
Insulation Test: Use a 500V megger to measure the insulation resistance of the motor winding to ground. The normal value should be >0.5MΩ.
Three-phase balance test: Use a clamp ammeter to measure the operating current. The three-phase unbalance should be <10%.
Protective device inspection: Check whether the circuit breaker, fuse, and thermal relay are normal.
2. Mechanical system inspection:
Load end inspection: Remove the load and test run. If no load is normal, check whether the pump, fan and other load machinery are stuck.
Bearing status assessment: Judging from the listening stick and vibration detector, if abnormal noise or vibration value exceeds the standard (>2.8mm/s), the bearing must be replaced immediately.
3. Troubleshooting and verification
1. Repair the identified fault points:
Electrical failure: Repair or replace the winding, and re-dip in paint if necessary.
Mechanical failure: Clean stuck parts and adjust the load.
2. Trial run verification:
First conduct a no-load test run (30 minutes) to monitor current, temperature, and vibration data.
Then gradually load it to 50%, 80%, and 100% of the rated load. Run each level of load for 1 hour. Only after confirming that there is no tripping phenomenon can it be put into normal operation.
