Allen Bradley Kinetix 7000 Drive Fault Codes List

Complete guide to Allen Bradley Kinetix 7000 fault codes. Troubleshoot high-power servo trips, E38 Sercos faults, Drive Overload, and use the HIM for diagnostics.

Kinetix 7000 Fault Codes Reference Table

Kinetix 7000 Fault Codes Reference Table

Kinetix 7000 Fault Codes Reference Table

Fault Code and Meaning Cause and Remedy
No Error Code Displayed

Power (PWR) indicator not ON		 Cause: No AC power or auxiliary logic power.

Remedy:
  • Verify that AC control power is applied to the Kinetix 7000 system.
Cause: Internal power supply malfunction.

Remedy:
  • Call your Rockwell Automation sales representative to return module for repair.
No Error Code Displayed

Motor jumps when first enabled		 Cause: Motor wiring error.

Remedy:
  • Check motor wiring.
  • Run Hookup test in RSLogix 5000® software.
Cause: Incorrect motor chosen.

Remedy:
  • Verify that the proper motor is selected.
No Error Code Displayed

Digital I/O not working correctly		 Cause: I/O power supply disconnected.

Remedy:
  • Verify connections and I/O power source.
E04
MotorOvertemp Fault
(Motor thermal switch tripped)		 Cause: High motor ambient temperature and/or excessive current.

Remedy:
  • Operate within (not above) the continuous torque rating for the ambient temperature, 40 °C (104 °F) maximum.
  • Lower ambient temperature, increase motor cooling.
Cause: Motor wiring error.

Remedy:
  • Check motor wiring at MF connector on the drive.
Cause: Incorrect motor selection.

Remedy:
  • Verify that the proper motor has been selected.
Cause: Mechanical failure.

Remedy:
  • Check for motor bearing failure or machine jam.
E05
DriveOvercurrent Fault
(Inverter Overcurrent IOC)		 Cause: Motor cables shorted.

Remedy:
  • Verify continuity of motor power cable and connector.
Cause: Motor winding shorted internally.

Remedy:
  • Disconnect motor power cables from the motor. If the motor is difficult to turn by hand, it may need to be replaced.
Cause: Drive temperature too high.

Remedy:
  • Check for clogged vents or defective fan.
  • Verify that cooling is not restricted by insufficient space around the unit.
  • Verify that ambient temperature is not too high.
Cause: Operation above continuous power rating and/or product environmental ratings.

Remedy:
  • Operate within the continuous power rating.
  • Reduce acceleration rates.
Cause: Kinetix 7000 drive has a short-circuit, overcurrent, or failed component.

Remedy:
  • Remove all power and motor connections, and perform a continuity check from the DC bus to the U, V, and W motor outputs. If a continuity exists, check for wire fibers between terminals, or send drive in for repair.
E06
HardOvertravelFault		 Cause: Axis moved beyond the physical travel limits in the positive/negative direction. Dedicated overtravel input is inactive.

Remedy:
  • Check wiring.
  • Verify motion profile.
  • Verify axis configuration in RSLogix 5000 software.
E07
MotFeedbackFault		 Cause: The feedback wiring is open, shorted, or missing.

Remedy:
  • Check motor encoder and wiring.
  • Run Hookup test in RSLogix 5000 software.
E09
BusUndervoltageFault		 Cause: Bus voltage for 460V system is below 275V DC (With three-phase power present).

Remedy:
  • Verify voltage level of the incoming AC power.
  • Verify integrity and consistency of AC power source.
  • Install an uninterruptible power supply (UPS) on your AC input.
Cause: Bus voltage is at least 180V DC below the precharge level of 323… 525V DC.

Remedy:
  • Verify that the bus supply is OK.
  • Disable axis before removing input power.
Cause: One of more phases of AC input power failed.

Remedy:
  • Check AC input power on all phases.
E10
DriveOvervoltageFault
(DC bus voltage is above limits)		 Cause: Excessive regeneration of power.

Remedy:
  • Change the deceleration or motion profile.
  • Use a larger system (motor and drive).
  • Install shunt module.
  • Install larger active shunt module or regenerative converter module.
Cause: Bus voltage for 460V system is over 800V DC.

Remedy:
  • Verify line input integrity and that it is within specification.
E11
MotFeedbackFault		 Cause: Improper connection (State of Hall feedback inputs is incorrect).

Remedy:
  • Verify the Hall wiring at the MF connector on the drive.
  • Verify 5V power supply to the encoder.
  • Check feedback device.
E16
SoftOvertravelFault		 Cause: Axis moved beyond the software axis position in either the positive or negative direction.

Remedy:
  • Verify motion profile.
  • Verify overtravel settings are appropriate.
E18
OverSpeedFault		 Cause: Motor speed has exceeded 150% of maximum rated speed. The 100% trip point is dictated by the lesser of the user velocity limits or the motor rated base speed.

Remedy:
  • Check cables for noise.
  • Check tuning.
  • Check feedback device.
  • Verify velocity limit settings.
E19
PositionErrorFault		 Cause: Position error limit exceeded.

Remedy:
  • Increase the feed forward gain.
  • Increase following error limit or time.
  • Check position loop tuning.
  • Verify sizing of system.
  • Verify mechanical integrity of system within specification limits.
  • Replace drive.
E20
MotFeedbackFault		 Cause: The motor encoder encountered an illegal transition (Motor encoder state error).

Remedy:
  • Use shielded cables with twisted-pair wires.
  • Route the feedback away from potential noise sources.
  • Check the system grounds.
  • Replace the motor/encoder.
  • Check feedback device and wiring.
E21
AuxFeedbackFault		 Cause: Communication was not established with an intelligent encoder.

Remedy:
  • Verify auxiliary encoder wiring.
E23
DriveOvertempFault
(IPM thermal protection fault)		 Cause: The internal filter protecting the drive from overheating has tripped.

Remedy:
  • Reduce acceleration rates.
  • Reduce duty cycle (ON/OFF) of commanded motion.
  • Increase time permitted for motion.
  • Use larger Kinetix 7000 drive and motor.
  • Check tuning.
E30
MotFeedbackFault		 Cause: Communication was not established with an intelligent encoder.

Remedy:
  • Verify motor selection.
  • Verify the motor supports automatic identification.
  • Verify motor encoder wiring.
E34
GroundShortFault
(Excessive ground current)		 Cause: Wiring error.

Remedy:
  • Check motor power wiring.
  • Check input power wiring.
Cause: Motor internal ground short.

Remedy:
  • Replace motor.
Cause: Internal malfunction.

Remedy:
  • Disconnect motor power cable from drive and enable drive with current limit set to 0. If fault clears, then a wiring error or motor internal problem exists. If fault remains, call your Rockwell Automation sales representative.
  • Remove ground from control power input.
  • Wire control power to use main power.
  • Add isolation transformer for control power.
E35
DriveUndervoltageFault
(Converter precharge cycle failed)		 Cause: Low AC input voltage.

Remedy:
  • Check input AC voltage on all phases.
Cause: Internal malfunction.

Remedy:
  • Call your Rockwell Automation sales representative.
E37

PowerPhaseLossFault
One or more phases of the AC input power is missing.		 Cause: AC input power failure or fuse issue.

Remedy:
  • Check input AC voltage and fusing on all phases and DC bus.
  • Disable axis before removing power.
E38

SercosFault
The Sercos ring is not active after being active and operational.		 Cause: Cable disconnected.

Remedy:
  • Check that fiber-optic cable is present and properly connected.
E39

DriveHardFault
Self-sensing Commutation Startup Error.		 Cause: Obstruction prevents motion required for self-sensing startup commutation.

Remedy:
  • Verify that there are no impediments to motion at startup, such as hard limits.
  • Increase self-sensing current if high friction or load conditions exist.
  • Check motor or encoder wiring using wiring diagnostics.
E43

DriveEnableInputFault
Missing Drive Enable input signal.		 Cause:
  • Attempted to enable the axis through software while the Drive Enable hardware input was inactive.
  • The Drive Enable input transition from active to inactive occurred while the axis was enabled.

Remedy:
  • Disable the Drive Enable Input fault.
  • Verify that Drive Enable hardware input is active whenever the drive is enabled through software.
  • Verify wiring and shielding.
  • If error persists, return the drive to Rockwell Automation.
E49

DriveHardFault
Safe Torque Off function mismatch. Drive will not permit motion.		 Cause:
  • Loose wiring at SO connector.
  • Cable/header not seated properly in SO connector.
  • Safe Torque Off circuit missing +24V DC.

Remedy:
  • Verify wire terminations, cable/header connections, and +24V DC.
  • Reset error and run proof test.
  • If error persists, return the drive to Rockwell Automation.
  • See the Kinetix Safe Torque Off Feature Safety Reference Manual, GMC-RM002.
E50

SercosFault
Duplicate node address detected on Sercos ring.		 Cause: Duplicate addressing configuration.

Remedy:
  • Verify that each Sercos drive is assigned a unique node address.
E54

DriveHardFault
Excessive Current Feedback Offset.		 Cause: Defective current feedback sensing.

Remedy:
  • If error persists, return the drive to Rockwell Automation.
E61

AuxFeedbackFault
Auxiliary Encoder State Error.		 Cause: The auxiliary encoder encountered an illegal transition.

Remedy:
  • Use shielded cables with twisted-pair wires.
  • Route the feedback away from potential noise sources.
  • Check the system grounds.
  • Replace the motor/encoder.
E62

AuxFeedbackFault
The feedback wiring is open, shorted, or missing.		 Cause: Feedback wiring issues.

Remedy:
  • Check the motor feedback cable connectors/wiring to the drive and motor.
E63

AuxFeedbackNoise
Noise on auxiliary feedback cable.		 Cause: Recommended grounding, per installation instructions, has not been followed.

Remedy:
  • Verify grounding.
  • Route feedback cable away from noise sources.
  • See System Design for Control of Electrical Noise Reference Manual, publication GMC-RM001.
E64

MotorFeedbackNoise
Noise on motor feedback cable.		 Cause: Recommended grounding, per installation instructions, has not been followed.

Remedy:
  • Verify grounding.
  • Route feedback cable away from noise sources.
  • See System Design for Control of Electrical Noise Reference Manual, publication GMC-RM001.
E65

No Fault Message
Hookup procedure failed.		 Cause: Motor or feedback device malfunction.

Remedy:
  • Check motor power/feedback wiring.
  • See displayed message for resolution.
E66

No Fault Message
Autotune procedure failed.		 Cause: Motor or feedback device malfunction.

Remedy:
  • Check motor power/feedback wiring.
  • See displayed message for resolution.
  • Perform Hookup in RSLogix 5000 software.
  • Consult RSLogix 5000 help message.
E67

DriveHardFault
Operating system failed.		 Cause: Software initialization fault detected due to hardware failure.

Remedy:
  • Cycle power.
  • If fault persists, replace module.
E68

DriveHardFault
DPI™ communication failed.		 Cause: The DPI device or cable is faulty.

Remedy:
  • Check DPI connections.
E69

DriveHardFault
Nonvolatile memory is corrupt due to control board hardware failure.		 Cause: Control board hardware failure.

Remedy:
  • Load default parameters, save to nonvolatile memory, and recycle power or reset the drive.
  • If fault persists, replace module.
E70

DriveHardFault
Nonvolatile memory is corrupt due to control board software error.		 Cause: Control board software error.

Remedy:
  • Load default parameters, save to nonvolatile memory, and recycle power or reset the drive.
  • If fault persists, replace module.
E71

DriveHardFault
RAM or flash memory validation failure.		 Cause: Memory validation failure.

Remedy:
  • Cycle power.
  • If fault persists, replace module.
E72

DriveOvertemp Fault
Inverter thermal switch tripped.		 Cause:
  • The drive fan failed.
  • The cabinet ambient temperature is above rating.
  • The machine duty cycle requires an RMS current exceeding the continuous rating of the controller.
  • The airflow access to the Kinetix 7000 drive is limited or blocked.

Remedy:
  • Replace the failed module.
  • Check the cabinet temperature. See System Design Guidelines.
  • Change the command profile to reduce speed or increase time.
  • Check airflow and remove any fan blockage.
E76

DriveHardFault
DPI hardware initialization fault detected.		 Cause: Control board hardware failure.

Remedy:
  • Reset System.
  • If fault persists, replace system module.
E78

DriveHardFault (Sercos Init)
Control hardware fault detected.		 Cause: Control hardware fault.

Remedy:
  • Cycle power.
  • If fault persists, replace module.
E80

DriveHardFault (CPLD Flt)
Control hardware fault detected.		 Cause: A-to-D conversion state machine error.

Remedy:
  • If fault persists, replace module.
E109

IGBT_TempFault
Junction temperature of Insulated Gate Bipolar Transistor exceeded.		 Cause: Drive sizing or load issue.

Remedy:
  • Check for proper drive sizing.
  • Install larger kW rated drive.
E110

EEPROM_Fault
EEPROM failed.		 Cause: EEPROM data corrupted or bus not calibrated.

Remedy:
  • If fault persists, replace module.
E111

Regen_PS_OK
The Regen_OK signal is missing at pins 7 and 8 of the GPIO connector.		 Cause: Signal missing at GPIO connector.

Remedy:
  • Check error displays on RPS, and troubleshoot per error message.
  • Reset system.
 

How to Read Kinetix 7000 Faults

Diagnosing the Kinetix 7000 requires a dual approach: checking the drive’s local display and the Motion diagnostics in the PLC. Here is the standard workflow for 2026:

  • The Human Interface Module (HIM): The LCD keypad on the front of the drive is the first place to look.
    • Press the Diagnostics soft key to view the “Fault Queue.”
    • This will provide a timestamp and a descriptive text (e.g., “Drive Overload” or “Ground Fault”) which is often more helpful than the generic Sercos code.
  • Sercos Diagnostics (Studio 5000):
    • Go to the Axis Properties in the Controller Organizer.
    • Select the Faults tab. This will show if the trip was caused by the motion profile (e.g., Position Error) or the drive hardware.
  • Fiber Optic LEDs: Located on the Sercos interface module (top of the drive).
    • Ring Status: If the LED is flashing red, the fiber ring is broken (E38).
    • Distortion: If orange, the light signal is weak—clean the fiber tips or check for bend radius violations.

Frequently Asked Questions (FAQ)

Q: How do I fix the “E38 Sercos Ring Fault”?

A: This is the most common communication fault. It indicates a break in the fiber optic ring.

  • Check Power: Ensure the Kinetix 7000 Control Power (24V) is active. If the drive control board loses power, the ring breaks.
  • Check Cables: Verify the Rx and Tx fiber cables are seated firmly and not bent.
  • Light Intensity: On the Sercos module, verify the “High/Low” power switches match the cable length (Low for short cabinet jumps, High for long runs).

Q: What is “E07 Motor Overload” on a Kinetix 7000?

A: Because the Kinetix 7000 drives massive loads, thermal management is critical.

  • Soft Overload: The drive calculated that the RMS current exceeded the motor rating for too long. Check for mechanical binding or an overly aggressive duty cycle.
  • Hard Trip: The internal thermal switch in the motor windings opened. Let the motor cool down before resetting.

Q: How do I reset the drive?

A:

  • Motion Faults: Trigger the Motion Axis Fault Reset (MAFR) instruction in the PLC.
  • Hardware Faults: Some high-power faults (like Overcurrent) are latching. You must press the “Clear Fault” key on the HIM or cycle the main 3-phase power to reset the drive.

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