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

11 codes from Universal Robots

C743A0 · Velocity limit for the external axis at index {unsigned} was exceeded

Universal Robots · e-Series and Later Models

C743 External AxesCause given

C743A1 · The servo drive for the external axis at index {unsigned} has entered a fault state

Universal Robots · e-Series and Later Models

C743 External AxesCause given

C743A2 · Freedrive is incompatible with external axis motion

Universal Robots · e-Series and Later Models

C743 External Axes

C743A3 · The servo drive for the external axis at index {unsigned} has become disabled

Universal Robots · e-Series and Later Models

C743 External AxesCause given

C743A4 · External axis homing is incompatible with other motion

Universal Robots · e-Series and Later Models

C743 External AxesCause given

C743A5 · Only one external axis servo drive homing operation at a time

Universal Robots · e-Series and Later Models

C743 External AxesCause given

C743A6 · Motion detected within multiple external axis groups

Universal Robots · e-Series and Later Models

C743 External AxesCause given

C743A7 · The position of external axis at index {unsigned} is close to joint limit

Universal Robots · e-Series and Later Models

C743 External AxesCause given

C743A8 · The position of external axis at index {unsigned} is close to upper joint limit

Universal Robots · e-Series and Later Models

C743 External AxesCause given

C743A9 · The position of external axis at index {unsigned} is close to lower joint limit

Universal Robots · e-Series and Later Models

C743 External AxesCause given

C743A10 · The position of external axis at index {unsigned} was commanded to move without the axis enabled.

Universal Robots · e-Series and Later Models

C743 External AxesCause given

Universal Robots C743A0

Velocity limit for the external axis at index {unsigned} was exceeded

Cause, as the directory gives them

  • The velocity that the axis needs to complete its trajectory at the same time as the robot exceeds its maximum limit.

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.