KUKA Robot codes
AxisMD

axismd.ai

KUKA Robot Controller

System · Basic

Alarm KRC0189

KUKA Robot KRC0189 - INTERNAL ERROR <error number> (<task ID>, <return status>)

This alarm indicates a critical internal software error within the KUKA KRC controller's kernel or real-time system, identified by a specific error number and associated task ID with corresponding return status. The error occurs when an unexpected condition is detected during task execution that violates system integrity or resource management constraints. This is a system-level failure that requires controller intervention and typically prevents normal robot operation until resolved.

KUKA RobotSystemBasic

KRC0189

KUKA Robot KRC0189 - INTERNAL ERROR <error number> (<task ID>, <return status>)

INTERNAL ERROR <error number> (<task ID>, <return status>)

This alarm indicates a critical internal software error within the KUKA KRC controller's kernel or real-time system, identified by a specific error number and associated task ID with corresponding return status. The error occurs when an unexpected condition is detected during task execution that violates system integrity or resource management constraints. This is a system-level failure that requires controller intervention and typically prevents normal robot operation until resolved.

Common Causes

  • Memory corruption or heap overflow in the KRC software stack
  • Task scheduling conflict or real-time kernel resource exhaustion
  • Corrupted or incompatible firmware/software version on the controller
  • Hardware failure in the controller's processor, RAM, or communication module
  • Invalid pointer dereference or illegal memory access within a background task

Troubleshooting Steps

  1. 1Document the complete error number and task ID from the alarm message for detailed analysis
  2. 2Check the diagnostic buffer and system logs in the KRC controller using the teach pendant or engineering software
  3. 3Verify that all installed KRC software packages and firmware are compatible versions using the System Information menu
  4. 4Perform a controlled shutdown and cold restart of the KRC controller to clear temporary memory corruption
  5. 5If error persists, execute a non-destructive system diagnostics routine or memory test through the controller's maintenance interface
  6. 6Contact KUKA technical support with the error details and system logs; consider controller firmware reinstallation or hardware replacement if error recurs

Seeing Multiple Alarms?

Seeing another alarm with this one? Enter the code.

Get machine-aware diagnosis

AxisMD logs alarms against your actual machines, tracks patterns, and gives AI context your manual doesn't have.

Start free

Was this guide helpful?

Always verify with your machine manual or a certified technician before performing service procedures.