Light interference may be occurring.
Take countermeasures according to the description in "Light interference". Check the status of light interference through the SZ-V Configurator.
Mutual interference due to another SZ-V may be occurring.
Take countermeasures according to the description in "Mutual Interference".
The SZ-V may detect the floor or the surrounding (background) because the SZ-V is installed with some inclination.
Adjust the SZ-V installation angle and position it so that the SZ-V does not detect the floor or the surroundings (background).
The background is close to the boundary of the specified protection zone.
The SZ-V detects the surroundings (background). Move it away from the specified protection zone.
If the surroundings are highly reflective backgrounds, take into account the additional safety distance.
The position of the SZ-V or the surroundings (background) has been changed.
Restore the position of the SZ-V or the surroundings (background). Perform the configuration on the protection zone again.
The structure for the reference points is not present or is not located within the specified tolerance.
Check the position of the structure on the reference points and the tolerance.
Change the configuration on the reference points, if necessary.
Laser shutdown function is activated.
Switch to a different bank.
The SZ-V has pollution on the window.
Clean the window according to "Cleaning the Window"
The SZ-V detects particles in the air, such as dust, spatter or moisture.
Take countermeasures so that the particles in the air do not go into the protection zone.