Parameter error Ax PR1

KSD Parameter Set 1 Checksum Error

Kuka · KR C2 Robot Controller

What does Parameter error Ax PR1 mean?

A checksum error has occurred in parameter set 1 of the servo drive module for the specified axis (Ax). This indicates data corruption within the parameter configuration of the KSD.

Common Causes

  • Checksum error in parameter set 1 of the KSD drive.
  • Parameter set 1 corrupted due to power interruption or memory issue.
  • Attempted to load invalid parameter configuration.
  • Faulty EEPROM storing parameter set 1.

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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