KUKA Robot codes
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KUKA Robot Controller

Servo/Axis · Basic

Alarm KRC0311

KUKA Robot KRC0311 - ERROR ON AXIS DECOUPLING

This alarm indicates a failure in the axis decoupling mechanism or process within the KUKA KRC controller, preventing proper separation of joint control during non-coordinated axis movements. Axis decoupling is critical for safe robot operation when individual axes need to move independently without kinematic coupling constraints.

KUKA RobotServo/AxisBasic

KRC0311

KUKA Robot KRC0311 - ERROR ON AXIS DECOUPLING

ERROR ON AXIS DECOUPLING

This alarm indicates a failure in the axis decoupling mechanism or process within the KUKA KRC controller, preventing proper separation of joint control during non-coordinated axis movements. Axis decoupling is critical for safe robot operation when individual axes need to move independently without kinematic coupling constraints.

Common Causes

  • Corrupted or missing axis decoupling configuration parameters in the robot's system data
  • Hardware communication failure between the controller and axis servo drives during decoupling initialization
  • Incorrect axis coupling matrix or decoupling transformation calculation in the motion control system
  • Defective feedback sensors or encoders preventing accurate axis position verification during decoupling
  • Software corruption in the axis control module or invalid robot kinematics definition

Troubleshooting Steps

  1. 1Perform a complete controller restart and verify that all axes return to neutral position without error
  2. 2Check and reload the robot's kinematic data (KinCom file) and axis configuration parameters in the System menu
  3. 3Verify all encoder connections and servo drive communication cables are properly seated and undamaged
  4. 4Run axis-by-axis diagnostics through the Diagnostics menu to confirm individual axis servo responses
  5. 5Review recent configuration changes or software updates that may have affected axis coupling parameters
  6. 6If error persists, perform a complete system backup and reinitialize the robot configuration, or contact KUKA service support for firmware diagnostics

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