Applicable Systems
GA700
GA500
A1000
V1000
J1000
Symptoms
Main circuit capacitor abnormal: DC link capacitor fault.
Possible Causes
- Capacitor degradation
- Capacitor bank unbalance
- Capacitor aging
Troubleshooting Steps
- Step 1: Check DC link capacitor balance
Voltages balanced - Step 2: Inspect capacitors for swelling
No physical damage - Step 3: Replace capacitor bank if faulty
New capacitors balanced
How to Reset
Reset via digital operator after capacitor repair.
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Source: Yaskawa GA700 Technical Manual, Yaskawa Electric
Category: PLC & VFD
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