F30001 says one thing only: phase current exceeded the hardware limit fast. The drive is almost always the messenger, not the culprit.
Work the list in order
- When does it trip? At the start pulse: suspect a short or hard mechanical block. During acceleration: ramp too steep for the load, or torque limits mis-set. At speed, sporadically: insulation breaking down under PWM stress, or load shocks.
- Megger the motor and cable (disconnected from the drive!). Phase-to-phase and phase-to-earth. PWM edges find weaknesses that 50 Hz never did — a motor that “ran fine on the old drive” can still be the fault.
- Turn the machine by hand. Seized bearings, a crashed axis, a foreign object in the pump — mechanics cause a big share of “drive faults”.
- Check the obvious parameter sins: motor data mismatch, missing identification run, current controller gains from a different motor, output filter declared but absent (or vice versa).
- Only then suspect the power unit. A shorted IGBT usually also announces itself at the first enable regardless of motor connected — the classic test: fault present with motor cable removed points inside.
The context questions that solve cases
New installation or was it running for years? Anything changed — motor swap, longer cable, new coupling? Does it follow temperature or shifts? Overcurrent stories are biographies; read them.
FAQ
Can I just raise the current limit? The hardware threshold, no — and you should not want to. Parameter current limits protect the motor; F30001 protects the silicon.
After a genuine IGBT failure, what else must I check? Why it failed: cooling, chronic overload, DC-bus events, or the motor insulation that killed it — otherwise the spare dies the same death.
Zone Otomasyon carries insulation testers to every drive callout. 24/7 drive fault response.