SYNCHRONISATION ERROR DRIVE MODULE Ax

Servo Bus Communication Error

Kuka · KR C2 Robot Controller

What does SYNCHRONISATION ERROR DRIVE MODULE Ax mean?

The maximum permissible number of communication errors with the servo bus for the specified axis (Ax) has been exceeded. Too many consecutive toggle bit errors are a common cause, leading to short-circuit braking.

Repair Steps

  1. 1

    Check the Interbus cable connections between the DSE, KPS, and all KSD modules for integrity and proper seating.

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Verified technical data. Last updated: March 2026