Traffic lights are usually found around the space where interlocks exist. These lights will show if the door is ready to use. Green being ready to use, red being not ready to use. Red lights can be caused by an interlock door not being closed, you can operate a door in a interlock only when the interlock doors are closed. When E-stops are pressed these traffic lights blink red. In some scenarios, blue lights might be seen this is for specific room conditions, refer to your site’s FDS.
Wiring Diagram Tips
Tips and Tricks from the Daldrop Team
If no lights are off, first step would be checking the S5 door panel, a circuit protector might be tripped.
If the light module has gone bad, a replacement part can be ordered. The glass and light holder would still be used, only the module would need swapping.