MICRONOR
automation components
Page 13 of 25
4.1.5. Relay Switching Failure
•
Verify solid electrical connection between wires and screw terminal for NO2,NC2, CM2,
NO1,NC2,CM1
•
Verify that the controller module is properly powered with +24VDC and grounded.
•
Verify emergency switch is connected and “Emergency ON’ is off
•
Verify when switch is depressed, the controller will electro-mechanically switch the
state of the relay resulting in a faint ‘click’ sound.
•
Contact Micronor Sales for further assistance.
4.1.6. Damaged Emergency Switch (Fiber)
•
Verify controller module outputs optical power by connecting LC loopback directly from
one LC connector to the other, shown in Figure 10. ‘Power’ should be illuminated and
‘Emergency ON’ should be off.
•
Verify undamaged fiber with visual fault finder.
•
Verify that the switch has a loss of < 1dB, using optical power meter.
•
Clean fiber optic surfaces on the emergency switch using the appropriate cleaning
materials.
•
Contact Micronor Sales for further assistance.
Figure 10. LC Loopback MR380-2,-8 Check
