Fault Code Library
Servo Drive & CNC Fault Codes, Explained by Repair Technicians
Look up your alarm, see what it means and the likely cause, then decide: reset it, fix it on site, or send the unit in for repair.
- Fault codes
- 2,364
- Fault codes
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- Brands
- Technician guides
- 88
- Technician guides
Browse by brand
- SSiemensSINAMICS S120 / S1501,484codes
- SSiemensSINAMICS S210275codes
- SSiemensSIMODRIVE 611 universal (611U)186codes
- FFanucαi PSM · SVM · SPM amplifiers139codes
- RRexroth IndramatECODRIVE DKC x.1 / x.3134codes
- ABAllen-BradleyKinetix 600050codes
- ABAllen-BradleyPowerFlex 523 / 52547codes
- YYaskawaSigma-II SGDH49codes
Drive not listed? Send us the code and model. A technician will tell you what it means.
Most searched fault codes
- F30001SINAMICS S120Power unit: OvercurrentPower unit (Motor Module)Read the guide
- SV0449Fanuc αiInverter: IPM alarmServo amplifier (SVM)Read the guide
- F860Indramat DKCOvercurrent: short in power stagePower sectionRead the guide
- E05Kinetix 6000DriveOvercurrent Fault (Power Fault)Power sectionRead the guide
- A.10Yaskawa SGDHOvercurrent or Heat Sink OverheatedPower sectionRead the guide
- F30021SINAMICS S120Power unit: Ground faultPower unit (Motor Module)Read the guide
- SP9012Fanuc αiDC link overcurrent/IPM alarmSpindle amplifier (SPM)Read the guide
- A.C9Yaskawa SGDHEncoder Communications ErrorEncoder / feedbackRead the guide
- F012PowerFlex 525HW OverCurrentPower sectionRead the guide
- 504SIMODRIVE 611UMeasuring circuit error, motor measuring systemEncoder / feedbackRead the guide
- F013PowerFlex 525Ground FaultPower sectionRead the guide
- 613SIMODRIVE 611UShutdown limit, motor overtemperature exceededPower sectionRead the guide
Fault won't clear?
Send the unit in for a free evaluation, component-level repair and operational testing.
Drives hold dangerous voltage after power-off. Checks should only be done by qualified personnel, with power isolated and the DC link discharged.