Applicable Systems
MINAS A5
MINAS A6
MINAS A5II
FP-X
FP7
Symptoms
The servo drive output current has exceeded the overcurrent protection threshold. This indicates a serious fault in the motor or drive power stage.
Possible Causes
- Motor winding short circuit or ground fault
- Motor cable is shorted or has insulation breakdown
- IGBT power module in the drive is damaged
- Excessive load causing current to exceed rated value
Troubleshooting Steps
- Step 1: Disconnect the motor cables and check motor winding resistance and insulation
Motor windings show balanced resistance and good insulation to ground - Step 2: Inspect motor cables for damage or short circuits
Cables are intact with no shorts between phases or to ground - Step 3: If motor and cables are OK, the IGBT module may be damaged - replace the drive or repair the power stage
Drive power stage is functional after replacement - Step 4: Verify the load is not mechanically seized or excessively heavy
Motor can rotate freely without excessive load
How to Reset
To reset: 1) Resolve the short circuit or overload condition. 2) Cycle power OFF then ON. 3) Re-enable the servo. Do NOT reset without fixing the root cause - IGBT damage may result.
Frequently Asked Questions
- Q: What is Err14.0 on Panasonic A5 servo?
Output overcurrent - indicates motor short circuit, cable fault, or IGBT damage. Disconnect motor and check windings and cables first.
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Source: Panasonic MINAS A5 Series Servo Drive Manual; Panasonic device FAQ (device.panasonic.cn)
Category: PLC & VFD
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