MR4

Alarm Space 4 Violation

Kuka · KK53Y Servo Motor

What does MR4 mean?

The MR4 signal indicates a violation of monitoring space 4. A '0' state on this signal means that monitoring space 4 is currently being infringed upon. If monitoring space 4 is intentionally inactive, the system considers it violated by default, and the associated safe output MR4 will be in the '0' state.

Repair Steps

  1. 1

    Identify the configured boundaries for monitoring space 4 in the robot's programming environment (e.g., using KUKA WorkVisual).

  2. 2

    Physically inspect the robot's current position and ensure no part of the manipulator, external axes, or tooling is entering or has entered the defined monitoring space 4.

  3. 3

    If monitoring space 4 is intended to be inactive, verify this configuration in WorkVisual and acknowledge that the MR4 signal will default to a '0' (violated) state.

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Verified technical data. Last updated: March 2026
Kuka Error MR4: Alarm Space 4 Violation — Troubleshooting Guide | ErrorLib