RepairXpert Industrial Automation

Industrial Fault Code Directory

313 fault codes with probable causes, step-by-step fix procedures, and field tricks from real maintenance experience.

313 Fault Codes
9 Equipment Types
169 High/Critical
Allen-Bradley (74)
AB-1734-PT POINT I/O 1734 Module — Point Fault medium AB-1756-AIFLT ControlLogix 1756-IF8 / IF16 Analog Input Over-Range medium AB-1756-ENET ControlLogix 1756-EN2T Connection Timeout — I/O Module high AB-1756-IO Allen-Bradley ControlLogix I/O Module Fault (1756 Series) high AB-1756-MEM ControlLogix Memory Full — Cannot Download medium AB-1756-MOTION1 ControlLogix Servo Axis Fault — Motion Group Error high AB-1756-PS ControlLogix 1756 Power Supply Fault critical AB-1756-REDUND ControlLogix Redundancy Switchover Fault critical AB-1756-SAFETY ControlLogix 1756-L7SP Safety Partner Fault critical AB-1756-TASK ControlLogix Task Watchdog Timeout high AB-1769-FAULT CompactLogix 1769 I/O Module Fault high AB-CIP-ERR1 EtherNet/IP CIP Error — Connection Rejected (16#0111) medium AB-CIP-ERR2 EtherNet/IP CIP Error — Module Not Responding (16#0204) high AB-CLGX-FW ControlLogix Firmware Flash Required After Replacement medium AB-COMPACT-ENET CompactLogix Built-in EtherNet/IP Port Fault high AB-CR30-FAULT Allen-Bradley CR30 Safety Relay Fault critical AB-EN2T-FAULT Allen-Bradley EtherNet/IP Adapter Fault (1756-EN2T / 1756-EN2TR) critical AB-F001 PLC Major Recoverable Fault high AB-F002 PLC I/O Module Fault high AB-F003 EtherNet/IP Connection Timeout high AB-F004 PLC Battery Low low AB-F005 PowerFlex Fault Code F2 - Auxiliary Input medium AB-F006 PowerFlex Fault Code F33 - Auto Rstrt Tries high AB-F007 PLC Redundancy Switchover critical AB-F008 PowerFlex 525 F7 - Motor Overtemp medium AB-F009 CompactLogix Nonvolatile Memory Fail critical AB-F010 Point I/O Adapter Communication Loss high AB-F011 PowerFlex 525 F12 - HW OverCurrent critical AB-F012 PowerFlex 525 F5 - OverVoltage high AB-F013 Kinetix Servo Drive Fault 16 - Excess Position Error high AB-F014 PLC Task Watchdog Expired high AB-F015 PowerFlex 755 F64 - Drive Overtemp medium AB-F016 PanelView HMI Application Fault medium AB-F017 PowerFlex 755 F81 - Drive HW Incompatible high AB-F018 ControlLogix EtherNet/IP Module CIP Error high AB-F019 GuardLogix Safety Signature Mismatch critical AB-F020 Stratix Switch Port Fault medium AB-F021 DeviceNet Scanner Communication Fault high AB-F022 CompactLogix USB Port Fault low AB-F023 PowerFlex 525 F29 - Analog Input Signal Loss medium AB-F024 PowerFlex 755 F100+ Configurable Fault medium AB-FLEX-IO Allen-Bradley Flex I/O Module Fault (1794 Series) high AB-GUARD-SIL Allen-Bradley GuardLogix Safety Fault — Safety Task Fault critical AB-MICRO800 Allen-Bradley Micro800 PLC Fault (Micro820/850) high AB-MSR-FAULT Allen-Bradley MSR Safety Relay — Configuration Fault high AB-PF-COMM PowerFlex VFD Fault — Communication Loss (F081/F100 Series) high AB-PF-F002 PowerFlex VFD Fault F002 — Auxiliary Input high AB-PF-F004 PowerFlex VFD Fault F004 — Undervoltage high AB-PF-F005 PowerFlex VFD Fault F005 — Overvoltage high AB-PF-F007 PowerFlex VFD Fault F007 — Motor Overload high AB-PF-F012 PowerFlex VFD Fault F012 — HW Overcurrent critical AB-PF-F013 PowerFlex VFD Fault F013 — Ground Fault critical AB-PF-F029 PowerFlex VFD Fault F029 — Analog Input Loss high AB-PF-F033 PowerFlex VFD Fault F033 — Auto Restart Tries Exceeded high AB-PF-F064 PowerFlex VFD Fault F064 — Software Overcurrent high AB-PF-F080 PowerFlex VFD Fault F080 — Drive Overload high AB-PF-F081 PowerFlex VFD Fault F081 — Drive Overtemperature high AB-PF-PARAM PowerFlex VFD Fault — Parameter Error / Factory Reset Needed high AB-PF525-F2 PowerFlex 525 Fault F002 — Auxiliary Input medium AB-PF525-F41 PowerFlex 525 Fault F041 — Heatsink Overtemperature high AB-PF525-P046 PowerFlex 525 Parameter Lockout — Security Code Active low AB-PF525-SAFE PowerFlex 525 Safe Torque Off (STO) Fault medium AB-PF755-F12 PowerFlex 755 Fault F12 — HW Overcurrent critical AB-PF755-NETFLT PowerFlex 755 Network Fault — Adapter Module high AB-PLC-MAJOR01 Allen-Bradley PLC Major Fault — Power Loss (Type 01) critical AB-PLC-MAJOR03 Allen-Bradley PLC Major Fault — I/O Module Not Responding (Type 03) critical AB-PLC-MAJOR04 Allen-Bradley PLC Major Fault — Program Execution (Type 04) critical AB-PLC-MAJOR06 Allen-Bradley PLC Major Fault — Motion Axis Fault (Type 06) critical AB-PLC-MINOR10 Allen-Bradley PLC Minor Fault — Battery Low (Type 10) low AB-PLC-MINOR20 Allen-Bradley PLC Minor Fault — EtherNet/IP Connection Loss (Type 20) high AB-POINT-FAULT Allen-Bradley POINT I/O Module Fault (1734 Series) high AB-PV-HMI Allen-Bradley PanelView HMI Communication Fault high AB-PV-NOCOMM PanelView HMI — No Controller Communication high AB-STRAT-RACK Stratix Managed Switch — Port Error / Redundancy Fault high
Asrs (25)
Conveyor (45)
20010 Conveyor Jam Detected medium 20011 Conveyor Belt Tracking Fault medium 20012 Conveyor Motor Overtemperature medium 50001 VFD Fault — Overcurrent high 50002 VFD Fault — Overvoltage high 50003 VFD Fault — Ground Fault high 50004 VFD Fault — Communication Loss high CONV-001 Conveyor Belt Tracking Error medium CONV-002 Conveyor E-Stop Active critical CONV-003 Conveyor Motor Overtemperature medium CONV-004 Conveyor Photoeye Blocked low CONV-005 Conveyor Chain Stretch Alarm medium CONV-006 Conveyor Accumulation Zone Full low CONV-007 Conveyor Speed Deviation medium CONV-008 Sortation Diverter Fault high CONV-009 Conveyor Metal Detector Trip high CONV-010 Conveyor Belt Splice Failure critical CONV-011 Conveyor Roller Motor Fault medium CONV-012 Conveyor Merge Collision Detected medium CONV-013 Conveyor Transfer Pop-up Fault high CONV-014 Conveyor Brake Fault high CONV-015 Conveyor Indexing Position Error medium CONV-016 Conveyor Spiral/Helix Fault medium CONV-017 Conveyor Belt Rip Detection critical CONV-018 Conveyor Take-up at Maximum medium CONV-019 Conveyor Weighing Scale Overload medium CONV-ACCUM1 Accumulation Conveyor — Zone Full / Back Pressure low CONV-ALIGN1 Conveyor Belt Alignment — Critical Drift medium CONV-BELT-SLIP Conveyor Belt Slip — Zero Speed Fault high CONV-CHAIN-BRK Chain Conveyor — Chain Break Detected critical CONV-CHAIN1 Chain Conveyor — Chain Stretch / Elongation Alarm medium CONV-ESTOP1 Conveyor E-Stop Pull Cord Activated medium CONV-GEARBOX1 Conveyor Gearbox Fault — Noise / Temperature / Oil Leak high CONV-GUARD1 Conveyor Guard Door Interlock Open medium CONV-INCLINE1 Incline/Decline Conveyor — Product Slide-Back high CONV-MERGE1 Conveyor Merge — Collision Detected medium CONV-METAL1 Conveyor Metal Detector — Contamination Reject medium CONV-MOTOR-OT Conveyor Motor Overtemperature — RTD/Thermistor Trip high CONV-PHOTOEYE1 Conveyor Photo-Eye Alignment Fault low CONV-ROLLER1 Roller Conveyor — Zone Fault / Motor Roller Fault medium CONV-SCAN1 Conveyor Barcode Scanner — No Read / Misread medium CONV-SORT1 Sortation System — Diverter Fault high CONV-SPIRAL1 Spiral Conveyor — Chain Tension / Gap Fault high CONV-TAKEUP1 Conveyor Take-Up — End of Travel medium CONV-TEMP1 Conveyor Bearing Temperature Alarm high
Cr30 (7)
General (62)
30001 Proximity Sensor Fault — No Target Detected medium 30002 Proximity Sensor Fault — Stuck ON medium 30003 Photoelectric Sensor Fault medium 30004 Temperature Sensor Fault — Thermocouple Break medium 40001 Safety Circuit Fault — E-Stop Active critical 40002 Safety Circuit Fault — Guard Door Open critical 40003 Safety Circuit Fault — Light Curtain critical 50005 Motor Starter Overload Trip high 60001 PLC Communication Fault — Network Timeout high 60002 PLC Communication Fault — Serial Link Down high 60003 PLC Battery Low low 60004 Communication Timeout — EtherNet/IP high 60005 Communication Timeout — DeviceNet high 60006 Communication Timeout — Profinet high 90001 Barcode Scanner No-Read medium 90002 Weight Scale Out of Tolerance medium 90004 Vision System Inspection Fail medium E030 Servo Position Error high E031 Encoder Feedback Loss high E032 Servo Drive Following Error high E040 Pneumatic Pressure Low medium E041 Hydraulic Pressure Low high E042 Air Pressure Fault medium GEN-AIR1 HVAC Supply Air Temperature Alarm low GEN-CAL1 Instrument Calibration Overdue low GEN-CMP1 Compressed Air System Low Pressure high GEN-COOL1 Cooling Water Temperature High medium GEN-DUST1 Dust Collection System Alarm medium GEN-ELEC1 Ground Fault on Power Circuit critical GEN-FIRE1 Electrical Panel Overtemperature critical GEN-HMI1 HMI Communication Loss medium GEN-HYD1 Hydraulic System Low Pressure high GEN-LEVEL1 Tank Level Sensor Fault medium GEN-MOT1 Motor Bearing Temperature High medium GEN-NET1 Industrial Network Ring Break high GEN-PLC1 PLC Power Supply Overload high GEN-PNE1 Pneumatic Cylinder Slow or Weak medium GEN-PWR1 Power Distribution Fault critical GEN-SCADA1 SCADA Server Communication Lost high GEN-TEMP1 Process Temperature Out of Range medium GEN-UPS1 UPS Battery Alarm medium GEN-VIB1 Excessive Vibration Alarm medium GEN001 Machine Won't Run — No Fault Code Showing medium R001 Robot Teach Pendant E-Stop critical SAF-001 Safety Light Curtain Fault critical SAF-002 Safety Relay Channel Fault critical SAF-003 Guard Door Interlock Open medium SAF-004 Safety PLC Firmware Mismatch critical SAF-005 Emergency Stop Circuit Ground Fault critical SAF-006 Area Scanner Zone Violation high SAF-007 Trapped Key Interlock Sequence Error critical SAF-008 Two-Hand Control Timing Violation medium SAFE-ESTOP-CIRC E-Stop Circuit Monitoring — Ground Fault Detected critical SAFE-ESTOP1 Emergency Stop Circuit — Station Unknown medium SAFE-GUARDMON1 Guard Monitoring Relay — Channel Fault high SAFE-INTLK1 Safety Interlock — Trapped Key System Fault high SAFE-LC1 Light Curtain Fault — Beam Blocked or Misaligned medium SAFE-MAGSW1 Magnetic Safety Switch — Door Not Detected high SAFE-MUTE1 Safety Muting — Mute Condition Not Met high SAFE-RELAY-WELD Safety Relay — Contact Welding Detected critical SAFE-SCAN1 Safety Laser Scanner — Zone Violation Warning low SAFE-SIL1 Safety System — SIL/PLe Proof Test Required high
Packaging (32)
70002 Packaging Machine Seal Fault medium 70003 Stretch Wrapper Fault — Film Break low 70004 Wrapper Film Break low 70005 Case Erector Jam medium 90003 Label Printer Fault medium PKG-001 Packaging Line Product Jam medium PKG-002 Case Erector Vacuum Fault medium PKG-003 Stretch Wrapper Film Break low PKG-004 Packaging Line Servo Fault high PKG-005 Label Applicator No Label low PKG-006 Checkweigher Reject low PKG-007 Heat Seal Temperature Out of Range medium PKG-008 Carton Sealer Tape Fault low PKG-009 Shrink Tunnel Temperature Alarm medium PKG-010 Filling Machine Dose Error medium PKG-011 Bottle Capper Torque Out of Spec medium PKG-012 Inkjet Printer Head Fault low PKG-013 Cartoner Carton Size Mismatch low PKG-BAND1 Banding / Strapping Machine — Strap Feed Fault low PKG-CARTON1 Cartoner — Product Insert Fault / Empty Carton medium PKG-CHECK1 Checkweigher — Weight Reject / Out of Tolerance medium PKG-ERECT1 Case Erector — Case Magazine Empty / Low low PKG-ERECT2 Case Erector — Vacuum Pickup Failure medium PKG-FILL1 Filling Machine — Fill Level Out of Tolerance medium PKG-LABEL1 Label Applicator — Missing Label / No Label Detected medium PKG-MDET1 Metal Detector — Sensitivity Fault / Auto-Balance Fail high PKG-PRINT1 Case Printer / Date Coder — Print Quality Fault medium PKG-SEAL1 Case Sealer — Tape Application Fault low PKG-SEAL2 Heat Seal / Impulse Seal Fault — Weak or Incomplete Seal medium PKG-SHRINK1 Shrink Tunnel — Temperature Fault / Uneven Shrink medium PKG-WRAP1 Stretch Wrapper — Film Break During Cycle low PKG-WRAP2 Stretch Wrapper — Turntable Motor Fault medium
Palletizer (22)
Piler (7)
Vfd (39)
VFD-AF1 VFD Analog Input Fault medium VFD-AIF1 VFD Analog Input Signal Loss medium VFD-AUTOSTART1 VFD Auto-Restart Fault — Retries Exhausted high VFD-BF1 VFD Bus Fault critical VFD-BUS1 VFD DC Bus Fault critical VFD-CF1 VFD Current Fault During Accel medium VFD-CL1 VFD Communication Loss high VFD-COMM1 VFD Communication Loss — Modbus RTU high VFD-COMM2 VFD Communication Loss — EtherNet/IP high VFD-DB1 VFD Dynamic Braking Fault high VFD-DRF1 VFD DC Bus Ripple Fault high VFD-EF1 VFD Encoder Feedback Error medium VFD-ERR1 VFD EEPROM Write Error low VFD-ETEMP1 VFD External Thermistor Trip — Motor PTC medium VFD-FW1 VFD Firmware / Software Fault high VFD-GF1 VFD Ground Fault critical VFD-IGBT1 VFD IGBT / Power Module Fault critical VFD-IOF1 VFD Instantaneous Output Fault high VFD-KEYPAD1 VFD Keypad / Display Fault low VFD-MCON1 VFD Output Contactor Feedback Fault high VFD-ML1 VFD Motor Overload medium VFD-MOL1 VFD Motor Overload medium VFD-OC1 VFD Overcurrent Trip high VFD-OC2 VFD Overcurrent — Deceleration high VFD-OC3 VFD Overcurrent — Steady State high VFD-OH1 VFD Heatsink Overtemperature medium VFD-OV1 VFD DC Bus Overvoltage high VFD-PE1 VFD Parameter Error low VFD-PL1 VFD Input Phase Loss high VFD-PROC1 VFD PID Process Fault — Setpoint Not Reached medium VFD-RDY1 VFD Not Ready medium VFD-RELAY1 VFD Output Relay Fault — Relay Welded or Open medium VFD-SD1 VFD Stall Detection high VFD-SPD1 VFD Speed Deviation — Feedback Mismatch medium VFD-STALL1 VFD Stall Detection — Motor Not Rotating high VFD-STO1 VFD Safe Torque Off Active medium VFD-SV1 VFD Speed Deviation Fault medium VFD-THD1 VFD Output Transistor Fault critical VFD-UV1 VFD DC Bus Undervoltage medium

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