F012Type 2 fault (manual reset) · Power sectionUsually repairable
PowerFlex 525 F012: HW OverCurrent
What F012 means
The output current jumped above the drive's hardware limit, so the power stage shut off at once to protect itself.
Symptoms
Trips right at start or on a sudden load change; after a power-section failure it can trip as soon as the drive is told to run.
Is it repairable?
Yes: failed IGBTs and gate drivers are replaced at component level and the drive is tested under load.
Common causes
- Short in the motor or motor cable
- Very fast acceleration into a heavy load
- Wrong motor data or boost setting
- A failed output transistor (IGBT) in the drive
Safe checks
- 1With power off, disconnect the motor and megger the motor and cable
- 2Try running the drive with no motor connected
- 3Check the accel time and boost settings
Drives hold dangerous voltage after power-off. Checks should only be done by qualified personnel, with power isolated and the DC link discharged.
Reviewed by AutomIQ repair technicians. Code and name from the PowerFlex 520-Series Adjustable Frequency AC Drive User Manual.
Related PowerFlex 525 faults
- F004UnderVoltage
- F005OverVoltage
- F007Motor Overload
- F008Heatsink OvrTmp
- F013Ground Fault
- F021Output Ph Loss