Error codes

What a robot’s error code means, from the maker’s own directory, with a link to the page where the maker says what to do about it.

Type the code from the teach pendant, or words from the message. Each directory is grouped the way the maker prints it: by robot generation, then by section.

Clear

740 codes from Universal Robots · page 2 of 19

C265A41 · The read head temperature is outside the allowed range.

Universal Robots · e-Series and Later Models

C265 Joint EncoderCause given

C265A42 · Signal amplitude low.

Universal Robots · e-Series and Later Models

C265 Joint EncoderCause given

C265A43 · Signal amplitude too high.

Universal Robots · e-Series and Later Models

C265 Joint EncoderCause given

C265A44 · Signal decoding below confidence threshold - position decoding might be inaccurate or fail.

Universal Robots · e-Series and Later Models

C265 Joint EncoderCause given

C265A45 · Internal speed data is not valid.

Universal Robots · e-Series and Later Models

C265 Joint EncoderCause given

C265A46 · Encoder acceleration too high.

Universal Robots · e-Series and Later Models

C265 Joint EncoderCause given

C265A47 · Magnetic pattern decoding error

Universal Robots · e-Series and Later Models

C265 Joint Encoder

C265A48 · Signal lost.

Universal Robots · e-Series and Later Models

C265 Joint EncoderCause given

C265A49 · Signal amplitude too high. External magnetic field is present

Universal Robots · e-Series and Later Models

C265 Joint EncoderCause given

C265A50 · System error. Malfunction inside the circuitry.

Universal Robots · e-Series and Later Models

C265 Joint EncoderCause given

C265A51 · Power supply voltage out of range.

Universal Robots · e-Series and Later Models

C265 Joint EncoderCause given

C265A52 · System error. Inconsistent calibration data is detected.

Universal Robots · e-Series and Later Models

C265 Joint EncoderCause given

C265A53 · Too many warnings in a row.

Universal Robots · e-Series and Later Models

C265 Joint EncoderCause given

C266A0 · Critical error

Universal Robots · e-Series and Later Models

C266 Self-testCause given

C267A0 · Critical error

Universal Robots · e-Series and Later Models

C267 Bootloader errorCause given

C267A11 · Hardware configuration issue

Universal Robots · e-Series and Later Models

C267 Bootloader errorCause given

C267A13 · Required firmware file is missing for device ID: {hex}

Universal Robots · e-Series and Later Models

C267 Bootloader errorCause given

C267A14 · Device not supported by the firmware file, device ID: {hex}

Universal Robots · e-Series and Later Models

C267 Bootloader error

C267A15 · No firmware to boot from for device ID: {hex}

Universal Robots · e-Series and Later Models

C267 Bootloader errorCause given

C268A4 · Reboot command received but the device is not allowed to reboot

Universal Robots · e-Series and Later Models

C268 Special CommandCause given

C269A70 · Flash device is not supported, JEDEC data for device is: {hex}

Universal Robots · e-Series and Later Models

C269 Transceiver - deprecatedCause given

C271A1 · Runtime is too much behind.

Universal Robots · e-Series and Later Models

C271 Low level real-time threadCause given

C272A0 · Critical error - the calibration is missing

Universal Robots · e-Series and Later Models

C272 Missing calibrationCause given

C273A0 · Critical error

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A5 · Disagreement on Safety Control Board State

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A6 · Disagreement on Robot State

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A7 · Disagreement on Safety State

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A8 · Disagreement on position

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A9 · Disagreement on velocity

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A10 · Disagreement on current

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A11 · Disagreement on temperature

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A12 · Disagreement on Teach Pendant State

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A13 · Disagreement on Teach Pendant Emergency Stop

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A14 · One processor entered Fault State

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A15 · One processor entered Violation State

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A16 · Joint State disagreement

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A17 · Joint Constant Data CRC disagreement

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A18 · Joint target current disagreement

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A19 · Torque Window disagreement

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

C273A20 · Torque Error disagreement

Universal Robots · e-Series and Later Models

C273 Cross monitoringCause given

Universal Robots C265A41

The read head temperature is outside the allowed range.

What to do: p. 68 of Universal Robots’s directoryAll Universal Robots codes
MakerUniversal Robots
Applies toe-Series and Later Models
SectionC265 Joint Encoder
Page68

Cause, as the directory gives them

  • The encoder read head is too cold or hot, either the ambient temperature is too high or the robot is overloaded.

From Universal Robots’s own error code directory. The steps to fix it are the maker’s and are on the page linked above, not copied here.