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ErrorLib — Industrial Fault Code Library

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Brake error Ax/PMx channel x

External Axes Brake Error

Kuka · KR C2 Robot Controller

What does Brake error Ax/PMx channel x mean?

A brake error has occurred on the external axes, specified by channel x. This could be due to the brakes not being connected or a short-circuit present on the brake cable.

Common Causes

  • External axis brake circuit has an error on channel (x).
  • Mechanical brake failure on the external axis.
  • Wiring or connection issue with the external axis brake actuator.
  • Control signal error for the external axis brake engagement.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify that the brakes for the specified external axis channel are correctly connected at the KPS and motor.

  2. 2

    Check the brake cable for the external axis channel for any short circuits or damage.

Browse all codes in this manual (58)
Verified technical data. Last updated: April 2026

Related Faults

-1General Path Replay Error-11Path Not Found-13Empty Path Data
Source: Kuka KR C2 Robot Controller
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