How to Troubleshoot False Alarms on the DS453Q & DS455Q

[#1]

Issue

What would cause a constant alarm violation?

Solution

1. Something is blocking the beams.
2. Optical modules or covers need cleaning.
3. Optical modules misaligned.
4. Wiring fault.

Solution:

1. Remove the object.
2. Clean the optical modules and the covers.
3. Realign.
4. Check wiring.