ACS 850 Fault codes
ABB ACS 850 Fault Detection
What's in This Section?
This section lists alarm (warning) and fault messages with possible causes and corrective actions. The code of the alarm/fault is displayed on the control panel of the drive and in the DriveStudio PC tool. An alarm or fault message indicates an abnormal condition of the drive.
Most alarm and fault causes can be identified and corrected using the information in this section. If not possible, contact an ABB representative.
In this section, alarms and faults are listed according to four-digit codes. The hexadecimal code in parentheses following the alarm/fault message is for fieldbus communication.
Safety
WARNING! Only authorized electricians can perform maintenance on the drive. Before starting to work with the drive, read the Safety Instructions on the first pages of the relevant Hardware Manual.
How to Reset
When the fault is cleared, it can be reset by pressing the RESET button on the drive control panel or by turning the supply voltage off and on for a while. The motor can be restarted after the fault is cleared.
A fault can also be reset from an external source selected with the 10.10 Fault reset option.
Fault History
When a fault is detected, it is stored in the fault recorder with a timestamp. The fault history stores information on the last 16 faults of the drive. The last three faults are preserved at the top when the power is turned off.
08.01 Active fault and 08.02 Last fault store the codes of the latest faults.
Alarms can be monitored through 08.05 Alarm word1 … 08.08 Alarm word4. Alarm information is lost when the power is turned off or the fault is reset.
0001 OVERCURRENT
The output current exceeded the internal fault limit.
- Check the motor load.
- Check the acceleration times in the parameter group 22 Speed ref ramp.
- Check the motor and motor cable (including phasing and delta/star connection).
- Ensure that the starting data in parameter group 99 matches the motor's rating plate.
- Ensure there are no power factor correction capacitors or surge absorbers in the motor cable.
- Check the encoder cable (including phasing).
0002 DC OVERVOLTAGE
The intermediate circuit DC voltage is excessively high.
- Ensure that the overvoltage control is active, parameter 47.01 Overvolt ctrl.
- Ensure that the input (input power) voltage matches the drive's nominal input voltage.
- Check the mains for static or transient overvoltage.
- Check the brake chopper and resistor (if used).
- Check the deceleration time.
- Use the stop-start function (if applicable).
- Retrofit the frequency converter with a brake chopper and brake resistor.
0004 SHORT CIRCUIT
Short circuit in the motor cable or motor.
- Check the motor and motor cable.
- Ensure there are no power factor correction capacitors or surge absorbers in the motor cable.
0005 DC UNDERVOLTAGE
The intermediate circuit DC voltage is insufficient due to a missing mains phase, blown fuse, or internal diode bridge fault.
- Check the mains power and fuses.
0006 GROUND FAULT
Programmable fault: 30.05 Ground fault
The drive detected a load imbalance typically due to a ground fault in the motor or motor cable.
- Ensure there are no power factor correction capacitors or surge absorbers in the motor cable.
- Ensure there is no ground fault in the motor or motor cable. Measure the insulation resistances of the motor and motor cable.
- If a ground fault cannot be detected, contact your local ABB representative.
0007 FAN FAILURE
The fan is not spinning freely or the fan connection is disconnected. Fan operation is monitored by measuring fan current.
- Check the fan operation and connection.
0010 BC SHORT CIRCUIT
Short circuit in the brake chopper IGBT.
- Replace the brake chopper.
- Ensure the brake resistor is connected and not damaged.
0012 BR OVERHEATING
The brake resistor temperature exceeded the fault limit defined by parameter 48.06 Br temp faultlim.
- Stop the drive. Wait for the resistor to cool down.
- Check the resistor overload protection function settings (parameters 48.01…48.05).
- Check the fault limit setting, parameter 48.06 Br temp faultlim.
- Ensure the braking cycle is within allowed limits.
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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." 13.09.2014
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