Drives error Ax no.: 105

KSD Control Unit Device Set Checksum Error

Kuka · KR C2 Robot Controller

What does Drives error Ax no.: 105 mean?

A checksum error has occurred in the control unit device set of the servo drive module for the specified axis (Ax). This indicates data corruption in the control unit's configuration.

Common Causes

  • Checksum error detected in the device set of the KSD control unit.
  • Firmware corruption in the KSD control unit's device set.
  • Memory integrity issue within the control unit.
  • Faulty storage medium for the device set.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the KSD module for visible damage or loose connections.

  2. 2

    Restart the controller.

  3. 3

    If the error persists after restart, exchange the KSD module.

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Verified technical data. Last updated: March 2026

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