Why does my SEMG safety light grid indicate “no valid configuration”?

Product image of the safety light curtains hand protection

If a SEMG safety light grid displays the message “No valid configuration”, safety-related settings are preventing operation. The article explains how to interpret the LED signals correctly and which steps are necessary to configure the emitter and receiver correctly and to put the light curtain back into operation.

Why does my weQube+ show RescueFS at startup – and how can I fix this?

The image shows the B50 vision sensor with the RescueFS error message.

If a weQube+ camera starts in RescueFS mode instead of the regular system, there is usually a problem with the firmware or the file system. This article describes the cause of this start-up behavior and shows a clearly structured procedure for restoring operability by means of a defined firmware installation.