Applicable Systems
GA700
GA500
A1000
V1000
J1000
Symptoms
Output phase loss: motor phase missing.
Possible Causes
- Motor winding open
- Output cable broken
- Drive output IGBT fault
Troubleshooting Steps
- Step 1: Check output cable continuity
All phases have continuity - Step 2: Measure motor windings
All phases balanced - Step 3: Test drive output
All phases switching
How to Reset
Reset via digital operator after fixing output phase.
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Source: Yaskawa GA700 Technical Manual, Yaskawa Electric
Category: PLC & VFD
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