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ErrorLib — Industrial Fault Code Library

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1298

SERCOS state class 1: Phase fault in power supply %s-axis.

Bosch Rexroth · Motion Control

What does 1298 mean?

A SERCOS state class 1 error indicating a phase fault in the power supply for the specified axis. The drive attempts the best possible response with a subsequent torque release. This fault points to an imbalance or loss in the incoming power supply or within the drive's power section.

Common Causes

  • Servo loop fault
  • Drive fault
  • Phase fault in the power supply of the %s-axis.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Initiate a control reset in the active channel.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

1287Error during generating the stack for the IdleTask.1288SERCOS state class 1: Overload cut-off %s-axis.1289SERCOS state class 1: Amplifier overtemperature cut-off %s-axis.
Source: Bosch Rexroth Motion Control
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