Allen-Bradley fault code lookups: which product?
An Allen-Bradley fault number means different things on a PowerFlex drive, a Kinetix servo and a MicroLogix controller. Find the product that shows the code, then open its lookup.
Pick the unit that shows the code
Each lookup lists the codes from Allen-Bradley's own manuals, with what each one means, the likely causes and the first checks, and links the manual it comes from.
| Lookup | Where you see the code | On the page |
|---|---|---|
| PowerFlex 70 and 700 Fault Codes | PowerFlex 70 and PowerFlex 700 drives, HIM or STS light | 69 codes, for example 2 Auxiliary Input, 3 Power Loss, 4 UnderVoltage |
| PowerFlex 753 and 755 Fault Codes | PowerFlex 753 and 755 drives, HIM | 60 codes, for example 2 Auxiliary Input, 3 Power Loss, 4 UnderVoltage |
| Allen-Bradley 1336 and 1305 Fault Codes | Legacy 1336 PLUS, 1336 PLUS II and 1305 drives | 60 codes, for example 02 Auxiliary Fault, 03 Power Loss Fault, 04 Undervolt Fault |
| Allen-Bradley Kinetix and Ultra3000 Fault Codes | Ultra3000 and Kinetix servo drives, E codes and Kinetix 5500/5700 FLT S codes | 55 codes, for example E00 BusUndervoltage Fault, E04 Motor Overtemperature, E05 IPM Fault |
| Allen-Bradley MicroLogix Fault Codes | MicroLogix 1000 to 1400 controllers, major error code in S:6 | 55 codes, for example 0001h NVRAM error, default program loaded, 0002h Unexpected reset, 0003h Memory module user program is corrupt |
For ControlLogix and CompactLogix major faults, fabrico.io has the Allen-Bradley major fault codes guide; it also covers the PowerFlex 525.
Log the code, not just the stop
Write down the code with the unit it came from and the minutes lost, every time. Two numbers a week (how often each code fires and what it costs) turn "that alarm comes up sometimes" into a ranked list, and the free OEE tracker turns the week into a downtime Pareto. An alarm number tells you what the unit detected, not what happened at the machine in the seconds before: Fabrico's camera-based OEE software syncs camera video with machine data, so you can replay the moment the machine stopped next to the alarm.
See the moment the machine stopped
Fabrico, a light MES with computer vision, syncs camera footage with machine and timeline data, so you can replay the exact moment a machine stopped and review the cause next to its alarm. Cameras also catch short stops and a line that is switched on but not producing, the losses nobody writes down. Machines connect through a PLC, a Fabrico IoT device or an AI camera.
Book a Fabrico demoAll alarm code lookups: FANUC: servo amplifier · spindle amplifier · robot SRVO | Siemens: MICROMASTER 440 · MASTERDRIVES · SINAMICS G120 · SINAMICS V90 servo · SINAMICS V20 | ABB: ACS550 drive · ACS800 drive · robot IRC5 | Okuma: OSP alarms | Haas: alarm lookup | Mitsubishi: MELSERVO servo · FR-D700 and FR-E700 inverters · FX PLC | Allen-Bradley: Kinetix and Ultra3000 · MicroLogix · PowerFlex 753 and 755 · PowerFlex 70 and 700 · 1336 and 1305 | Yaskawa: V1000 drive · SERVOPACK servo · Motoman robot | Delta: VFD drives · ASDA servo | Eaton: DC1 and SVX9000 drives | Control Techniques: Commander SK and M200 | Kollmorgen: AKD servo | Lenze: SMVector, 8200, 8400, i500 | Magnetek: IMPULSE and DSD 412 | Omron: MX2 and RX inverters · G5 and 1S servo | WEG: CFW500, CFW300, CFW11, CFW08 | Hitachi: WJ200 inverter | Toshiba: E3, Q9, P9, S15, nC3, AS3 | AutomationDirect: GS10, GS20, GS4, GS1 to GS3 | SANYO DENKI: SANMOTION servo | Parker: SSD 590+, 690+, AC10 | KEB: COMBIVERT F5 | Epson: robot RC700, RC90 | B&R: ACOPOS servo | Schneider Electric: Lexium 32 servo | Bosch Rexroth: IndraDrive | Vacon: NX, VACON 100 and 20 | Fuji Electric: FRENIC-Mini, Multi, Ace, MEGA | LS Electric: S100, G100, iG5A | Panasonic: MINAS A6 and A5 servo | Invertek: Optidrive E3, P2, Eco | SEW-Eurodrive: MOVITRAC B and MOVIDRIVE B
Related tools: full troubleshooting directory · OEE calculator · downtime cost · MTBF / MTTR