What causes KUKA Robot alarm KRC0261?

Axis is configured with an absolute encoder but sensor adjustment procedure was selected. Axis uses an incremental encoder with reference marks requiring absolute mastering instead. WorkVisual hardware configuration does not match the physical encoder type installed on the robot. Technician attempted to run sensor adjustment after a recent encoder replacement. Multiple encoder types are present in the kinematic chain causing procedure selection confusion.

How do I fix KUKA Robot alarm KRC0261?

1. Verify the actual encoder type installed on the axis by consulting the robot nameplate and mechanical drawings 2. Review the axis configuration in WorkVisual to ensure it matches the physical hardware encoder specification 3. Select the correct calibration procedure: absolute mastering for absolute encoders or sensor adjustment for resolver feedback devices 4. Clear the current axis configuration in WorkVisual and reconfigure with the correct encoder type parameters 5. Perform the appropriate mastering or adjustment procedure corresponding to the confirmed encoder hardware 6. Document the encoder type and calibration method used for future reference and maintenance scheduling

KUKA Robot codes

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KUKA Robot Controller

Servo/Axis · Basic

Alarm KRC0261

KUKA Robot KRC0261 - SENSOR ADJUSTMENT INVALID <axis number>

Sensor adjustment cannot be applied to the specified axis because it is equipped with an incremental or absolute encoder that requires different calibration methods. This alarm indicates a mismatch between the selected adjustment procedure and the actual hardware configuration.

KUKA RobotServo/AxisBasic

KRC0261

KUKA Robot KRC0261 - SENSOR ADJUSTMENT INVALID <axis number>

SENSOR ADJUSTMENT INVALID <axis number>

Common Causes

Axis is configured with an absolute encoder but sensor adjustment procedure was selected
Axis uses an incremental encoder with reference marks requiring absolute mastering instead
WorkVisual hardware configuration does not match the physical encoder type installed on the robot
Technician attempted to run sensor adjustment after a recent encoder replacement
Multiple encoder types are present in the kinematic chain causing procedure selection confusion

Troubleshooting Steps

1Verify the actual encoder type installed on the axis by consulting the robot nameplate and mechanical drawings
2Review the axis configuration in WorkVisual to ensure it matches the physical hardware encoder specification
3Select the correct calibration procedure: absolute mastering for absolute encoders or sensor adjustment for resolver feedback devices
4Clear the current axis configuration in WorkVisual and reconfigure with the correct encoder type parameters
5Perform the appropriate mastering or adjustment procedure corresponding to the confirmed encoder hardware
6Document the encoder type and calibration method used for future reference and maintenance scheduling

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