User manual

13 LEDindicatorsandtroubleshooting| I/O modules
482 1432790000/08/12.2015Manual u-remote
Module LED Status Recommended action
UR20-PF-I
Status LED Red:
– Channel error or communication error on the system
bus, or there is an error in the supply voltage
– Check that the module has been snapped into place
properly
– Check the channel error, check the supply voltage
3.2 Red:
– Supply voltage of the feed-in plug <18VDC Check the supply voltage of the feed-in plug
3.4 Red:
– Damage of internal fuse – replace module
UR20-PF-O
Status LED Red:
– Channel error or communication error on the system
bus, or there is an error in the supply voltage
– Check that the module has been snapped into place
properly
– Check the channel error, check the supply voltage
4.1 Red:
– Supply voltage of the feed-in plug <18VDC Check the supply voltage of the feed-in plug
4.2 Red:
– Damage of internal fuse – replace module
Potential distribution modules
UR20-16AUX-I
UR20-16AUX-GND-I
Status LED Red:
– Error on the supply voltage of the input path
– Check that the module has been snapped into place
properly
– Check the supply voltage
UR20-16AUX-O
UR20-16AUX-GND-O
Status LED Red:
– Error on the supply voltage of the output path
– Check that the module has been snapped into place
properly
– Check the supply voltage
UR20-16AUX-FE
Status LED Off: No supply voltage – Check that the module has been snapped into place
properly
Safe I/O modules see “Modules for functional safety manual”