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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

SikContactOpen

Laser safety circuit is still open: Ensure laser safety before the robot program is resumed

Kuka · LaserTech 3.1

What does SikContactOpen mean?

The laser safety circuit remains open, preventing safe laser operation. This could be due to an actual open safety interlock or a mismatch between the light path settings in the laser and the requested light path configuration.

Common Causes

  • Laser safety interlock circuit is open.
  • Ensuring laser safety is required before resuming robot program.
  • Safety contact for laser is not made.
  • Laser safety door or cover is not closed.
  • One or more safety sensors for the laser are not active.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect all components of the laser safety circuit (e.g., safety doors, light barriers, emergency stops) to ensure they are closed and functional.

  2. 2

    Verify that the light path settings configured in the laser system match the light path requested by the robot program.

Browse all codes in this manual (46)
Verified technical data. Last updated: April 2026

Related Faults

AcknWfdHeat- MessagePlease acknowledge errors on the wire heater unitCheckMedia- ControlCheck media control!CollectionErro- rOfLaserError of laser system ---> Resumption of process possible after dialog and forced reset of laser
Source: Kuka LaserTech 3.1
Open Manual (Page 78)Search more codes in this manual