ABB ACS255 Drive

Fault Code and MeaningCause and Remedy
Stop (0x00)

Drive is READY and in a stopped condition.

Cause: The motor is not energized. No enable signal is present to start the drive.


Remedy:

  • Drive is ready to configure for particular application.


P-def (0x0A)

Factory Default parameters have been loaded.

Cause: Default parameters loaded.


Remedy:

  • Press the STOP key.

  • Configure drive for the application.


F0001 (0x03)

Instantaneous Over current on the drive output.

Cause: Excess load or shock load on the motor.


Remedy:

  • If immediately on enable: Check output wiring connections (phase-phase, phase-earth) for short circuits.

  • If during motor start: Check motor rotation (no blockages), brake release, star-delta wiring.

  • Ensure motor nameplate current is correct in parameter 9906.

  • Increase acceleration time (param 2202).

  • Reduce motor boost voltage (param 2603).

  • If at constant speed: Investigate overload.

  • If during accel/decel: Times are too short. Increase param 2202 or 2203.


F0009 (0x04)

Motor thermal overload protection trip.

Cause: The drive has tripped after delivering >100% of value in 9906 for a period of time to prevent damage.


Remedy:

  • Ensure correct motor nameplate current is entered in parameter 9906.

  • Check for correct Star or Delta wiring configuration.

  • If decimal points are flashing (current > 9906), increase acceleration ramp (2202) or decrease load.

  • Check total motor cable length is within specification.

  • Check load mechanically for jams or blockages.


OL-b (0x01)

Brake channel over current.

Cause: Excessive current in the brake resistor.


Remedy:

  • Check cabling to brake resistor for shorts or damage.

  • Ensure resistance is equal to or greater than minimum value (see section 12.2).


OL-br (0x02)

Brake resistor thermal overload.

Cause: Internal protection activated (when param 2020 = 1).


Remedy:

  • Increase deceleration time (parameter 2203 or 2206).

  • Reduce load inertia.

  • Ensure resistor resistance is sufficient.

  • If using external thermal protection, parameter 2020 may be set to 2.


F0004 (0x05)

Hardware Over Current.

Cause: Short circuit or hardware fault.


Remedy:

  • Check wiring to motor for phase-phase and phase-earth shorts.

  • Disconnect motor cable and retest.

  • If drive trips with no motor connected, replace the unit.


F0002 (0x06)

Over voltage on DC bus.

Cause: Supply voltage outside tolerance or regen energy too high.


Remedy:

  • Check supply voltage is within allowed tolerance.

  • If fault occurs on deceleration, increase decel time (param 2203).

  • Install suitable brake resistor and activate dynamic braking (param 2020).


F0006 (0x07)

Under voltage on DC bus.

Cause: The incoming supply voltage is too low (or power removed).


Remedy:

  • Check the incoming power supply voltage.

  • Check all components in the power feed line.


F0003 (0x08)

Heatsink over temperature.

Cause: The drive is too hot.


Remedy:

  • Check ambient temperature is within specification.

  • Ensure sufficient cooling air circulation.

  • Increase panel ventilation if required.

  • Check vents are not blocked.


U-t (0x09)

Under temperature.

Cause: Ambient temperature is less than -10°C.


Remedy:

  • Raise temperature over -10°C to start the drive.


F0018 (0x10)

Faulty thermistor on heatsink.

Cause: Internal component failure.


Remedy:

  • Refer to your local ABB representative.


O-heat (0x17)

Drive internal temperature too high.

Cause: Drive ambient temperature too high.


Remedy:

  • Check adequate cooling air is provided.


F0014 (0x0B)

External trip (on digital input 3).

Cause: E-trip requested on control terminals (based on param 9902 settings).


Remedy:

  • Check external device (normally closed contactor) for faults.

  • If motor thermistor is connected, check if motor is too hot.


F0010 (0x0C)

Comms loss trip.

Cause: Communication link failure.


Remedy:

  • Check communication link between drive and external devices.

  • Make sure each drive in the network has a unique address.


F0022 (0x0E)

Input phase loss trip.

Cause: Drive intended for 3 phase supply has lost one input phase.


Remedy:

  • Check incoming power supply lines.


SPin-F (0x0F)

Spin start failed.

Cause: Spin start function failed to detect the motor speed.


Remedy:

  • Check motor connection and load.


F0027 (0x11)

Internal memory fault.

Cause: Parameters not saved, defaults reloaded.


Remedy:

  • Try again.

  • If problem recurs, refer to your local ABB representative.


F0007 (0x12)

Analog input current out of range.

Cause: 4-20mA signal loss or out of bounds.


Remedy:

  • Check input current is in range defined by parameter 1300.


F0021

Internal drive Fault.

Cause: Internal Error.


Remedy:

  • Refer to your local ABB representative.


faulty

Internal drive Fault.

Cause: Internal Error.


Remedy:

  • Refer to your local ABB representative.


AtF-01 (40)

Autotune Fault.

Cause: Measured motor stator resistance varies between phases.


Remedy:

  • Ensure motor is correctly connected and free from faults.

  • Check the windings for correct resistance and balance.


AtF-02 (41)

Autotune Fault.

Cause: Measured motor stator resistance is too large.


Remedy:

  • Ensure motor is correctly connected and free from faults.

  • Check that power rating corresponds to the drive rating.


AtF-03 (42)

Autotune Fault.

Cause: Measured motor inductance is too low.


Remedy:

  • Ensure motor is correctly connected and free from faults.


AtF-04 (43)

Autotune Fault.

Cause: Measured motor inductance is too large.


Remedy:

  • Ensure motor is correctly connected and free from faults.

  • Check that power rating corresponds to the drive rating.


AtF-05 (44)

Autotune Fault.

Cause: Measured motor parameters are not convergent.


Remedy:

  • Ensure motor is correctly connected and free from faults.

  • Check that power rating corresponds to the drive rating.