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.
Repair Steps
- 1
Verify that the brakes for the specified external axis channel are correctly connected at the KPS and motor.
- 2
Check the brake cable for the external axis channel for any short circuits or damage.
Verified technical data. Last updated: March 2026
Source: Kuka KR C2 Robot Controller