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8
Troubleshooting
8.1
LED indications
LED indication
Red
No LED light
Green (but no DYNlink
output detected)
Weak lights
2TLC172125M0201 Rev.F
Probable cause
Device pushed/opened
Bad connection between
loops (A and/or B) and
device terminals
+24 VDC connected to
DYNlink signal input
Loss of power supply
Defective DYNlink signal
input to unit
Unit is defective
Action
Check status of the device.
Check terminals and fasten them
carefully.
Check if there is +24 VDC on
DYNlink signal input. If yes, check
cable connections or the unit
before.
Check +24 VDC / 0 VDC power
supply.
Check the DYNlink input or the unit
before.
Replace the unit.
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