1294

SERCOS state class 1: Error in electronic commutation system %s-axis.

Bosch Rexroth · Motion Control

What does 1294 mean?

A SERCOS state class 1 error indicating a problem within the electronic commutation system of the specified axis. The drive attempts the best possible response with a subsequent torque release. This fault affects the servo loop or drive's ability to properly control the motor.

Common Causes

  • Servo loop fault
  • Drive fault
  • Error in the electronic commutation system on the %s-axis.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Initiate a control reset in the active channel.

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Verified technical data. Last updated: March 2026

Related Faults

1291SERCOS state class 1: Cooling fault cut-off %s-axis.1292SERCOS state class 1: Control voltage fault %s-axis.1290SERCOS state class 1: Motor overtemperature cut-off %s-axis.
Source: Bosch Rexroth Motion Control
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