Hi everybody,

In ABB ACS 800 drives, a warning or error message indicates an abnormal condition of the drive. These warning or error messages displayed on the panel can often be identified and corrected using the provided information. However, if the problem cannot be resolved with this information, it is recommended to contact an ABB representative.

If the drive is operated with the control panel removed, the red LED on the panel mounting platform indicates a fault condition. (Note: Some drive types are not equipped with LEDs as standard.)

The four-digit code number displayed on the panel is used for fieldbus communication (see the Fieldbus Control section).

How to Reset??

The drive can be reset by pressing the RESET button on the keypad, through digital input or fieldbus, or by turning off the supply voltage for a while. After the fault is corrected, the motor can be restarted.

Fault History

When a fault is detected, it is stored in the Fault History. The most recent faults and warnings are stored with a timestamp of when the event was detected. For more information, see the Control Panel section.

These general details provide a starting point for dealing with the errors and warnings that may be encountered in ABB ACS 800 drives. However, it is important to consult the drive's user manual and technical documentation to understand the reasons behind each error message and to find the appropriate solution. For more complex problems or when the specified steps do not solve the issue, contacting ABB's technical support is the best approach.

    ACS 800 TEMP (4210) - Excessive internal temperature.
- Error Message: The trigger level for the inverter module temperature is 125 °C.
- Solution: Check environmental conditions. Check airflow and fan operation. Check for dust accumulation on cooling fins. Compare motor power with the unit power.

    AI < MIN FUNC (8110) - Analogue control signal below the minimum allowed value.
- Error Message: The analog control signal is below the minimum allowed value due to incorrect signal level or fault in control wiring.
- Solution: Check appropriate analog control signal levels. Check control wiring. Check Error Function parameters.

    BACKUP ERROR - Error during restoration of drive parameters from PC.
- Error Message: Failure during restoration of drive parameters from PC storage.
- Solution: Try again. Check connections. Ensure parameters are compatible with the drive.

    CTRL B TEMP (4110) - Control board temperature below -5 … 0 °C or exceeding +73 … 82 °C.
- Error Message: Control board temperature is outside the acceptable range.
- Solution: Check airflow and fan operation.

    BR BROKEN (7111) - Brake resistor not connected or damaged.
- Error Message: The resistance value of the brake resistor is too high.
- Solution: Check the resistor and its connection. Ensure the resistance value of the resistor is according to specifications.

    BC SHORT CIR (7113) - Short circuit in brake chopper IGBTs.
- Error Message: There is a short circuit in the IGBTs of the brake chopper.
- Solution: Replace the brake chopper. Ensure the brake resistor is connected and not damaged.

    BR WIRING (7111) - Incorrect connection of the brake resistor.
- Error Message: The brake resistor is connected incorrectly.
- Solution: Check the resistor connection. Ensure the brake resistor is not damaged.

    COMM MODULE (7510) - Cyclical communication loss between the drive and the main station.
- Error Message: Communication loss as specified in the field bus control or appropriate field bus adapter manual.
- Solution: Check the status of fieldbus communication. Check parameter settings. Check cable connections. Check if the main station can communicate.

    CURR MEAS (2211) - Fault in the current transformer of the output current measurement circuit.
- Error Message: The Main Circuit Interface Card detects a fault in the current transformer to INT.

    DC OVERVOLT (3210) - Excessive DC link voltage.
- Error Message: The DC link voltage is too high. The DC overvoltage tripping limit is 1.3 · U1max, where U1max is the maximum value of the main voltage range. For 400 V units, U1max is 415 V; for 500 V units, U1max is 500 V. The actual DC link voltage corresponding to the main voltage tripping level is 728 VDC for 400 V units and 877 VDC for 500 V units.
- Solution: Ensure that overvoltage control is enabled (Parameter 20.05). Check the mains for static or transient overvoltages. Check the braking chopper and resistor (if used). Check the deceleration time. Use the stopping function (if applicable). Install a braking chopper and a braking resistor to the frequency converter.

    DC UNDERVOLT (3220) - Insufficient DC link voltage.
- Error Message: The DC link voltage is insufficient due to a missing main phase, a blown fuse, or an internal fault in a rectifier bridge. The DC undervoltage tripping limit is 0.65 · U1min, where U1min is the minimum value of the main voltage range. For both 400 V and 500 V units, U1min is 380 V. The actual DC link voltage corresponding to the main voltage tripping level is 334 VDC.
- Solution: Check the mains and fuses.

    EARTH FAULT (2330) - Earth fault.
- Error Message: The load in the incoming mains system is unbalanced due to a fault in the motor, motor cable, or an internal fault.
- Solution: Check the motor. Check the motor cable. Ensure that there are no power factor correction capacitors or surge suppressors in the motor cable.

    EXTERNAL FLT (9000) - Fault in external devices.
- Error Message: There is a fault in one of the external devices. (This information is configured via one of the programmable digital inputs.)
- Solution: Check external devices for faults. Check the 30.03 EXTERNAL FAULT parameter.

    FAN OVERTEMP (ff83) - Overtemperature of the drive output filter fan.
- Error Message: The temperature of the drive output filter fan is too high.
- Solution: Stop the drive. Wait for it to cool down. Check the ambient temperature. Ensure that the fan is rotating in the correct direction and that airflow is unobstructed.

    ID RUN FAIL - Motor ID run could not be completed successfully.
- Error Message: The motor identification run could not be completed successfully.
- Solution: Check the maximum speed (Parameter 20.02). It should be at least 80% of the motor's nominal speed (Parameter 99.08).

    I/O COMM ERR (7000) - Communication error on the control board, CH1 channel.
- Error Message: Electromagnetic interference.
- Solution: Check the connections of fiber optic cables in the CH1 channel. Check all I/O modules connected to the CH1 channel (if any). Ensure that the equipment is properly grounded. Check for high-emission components nearby.

    LINE CONV (ff51) - Fault in the line-side converter.
- Error Message: Panel shift from the motor-side converter control board to the line-side converter control board.
- Solution: Check the line-side converter manual for a fault description.

    MOTOR PHASE (ff56) - One phase of the motor is missing.
- Error Message: One phase of the motor is missing due to a fault in the motor, motor cable, thermal relay (if used), or an internal fault.
- Solution: Check the motor and motor cable. Check the thermal relay (if used). Check the Fault Function parameters. Disable this protection.

    MOTOR TEMP (4310) - Motor temperature too high.
- Error Message: The motor temperature is too high (or appears to be too high) due to excessive load, insufficient motor power, insufficient cooling, or incorrect starting data.
- Solution: Check the motor ratings and load. Check the starting data. Check the Fault Function parameters.

    MOTOR STALL (7121) - Motor operating in stall region.
- Error Message: The motor is operating in the stall region, for example, due to excessive load or insufficient motor power.
- Solution: Check the motor load and drive ratings. Check the Fault Function parameters.

    MS INV LOSS - Drive cannot detect a master in the Multipump connection and is not allowed to be the master itself.
- Error Message: Check the fiber optic cable connections between the drives in the Multipump connection. If the drives are connected in a ring, ensure that all drives are powered. Ensure that a sufficient number of drives are allowed to be the master in the connection.

    NO MOT DATA (ff52) - No motor data given or motor data does not match inverter data.
- Error Message: Check the motor data given via Parameters 99.04 … 99.09.

    OUTLET HIGH/VERY HIGH - Pressure at pump/fan outlet too high.
- Error Message: The pressure at the outlet is too high.
- Solution: Check the pipes for blockages.

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- ACS 800 User manuals  
- ACS 800 Fault Codes 1  
- ACS 800 Fault Codes 2  

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"* The user manuals, commissioning suggestions, error codes, and solution recommendations provided on this page are not binding. The information and documents above are open to and even in need of improvement. As the Otomasyon Mall Community, we gladly welcome your suggestions and contributions. If you have field experience and insights on ease of use, please do not hesitate to share them with us."  26.08.2014