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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.

ShutterOpen

Safety circuit open, shutter closed

Kuka · LaserTech 3.1

What does ShutterOpen mean?

The safety circuit is open, but the laser shutter is currently closed. This could indicate a problem with the safety circuit itself or a discrepancy between the laser's internal light path settings and the program's requested path.

Common Causes

  • Safety circuit is open, causing the shutter to close.
  • Laser beam path is blocked by the shutter due to safety.
  • Safety interlock has activated, closing the shutter.
  • Shutter mechanism failed to open due to safety condition.
  • External safety signal resulted in shutter closure.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Inspect all safety circuit components for open contacts, wiring breaks, or malfunctions.

  2. 2

    Verify the light path settings in the laser system align with the requested light path in 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