Allen-Bradley Fault Codes — Complete Troubleshooting Reference

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

CR30-CFG-ERR 440C-CR30 Configuration Error critical CR30-COMM-ERR 440C-CR30 EtherNet/IP Communication Fault high CR30-DISC-ERR 440C-CR30 Dual-Channel Discrepancy Error high CR30-IN-FAULT 440C-CR30 Input Channel Fault critical CR30-OUT-FAULT 440C-CR30 Output Relay Fault critical CR30-PWR-FAULT 440C-CR30 Power Supply Fault high CR30-RESET-REQ 440C-CR30 Manual Reset Required medium

60005 Communication Timeout — DeviceNet high SAF-004 Safety PLC Firmware Mismatch critical