1771 OAD B No Active light

PPRE&I

Member
Join Date
May 2017
Location
Wisconsin
Posts
8
Have three 1771 OAD B output cards that the active light does not come on.
Stand alone rack..no remote racks
Tried new cards...same
Tried new power supply...same
Tried new backplane with original ps...same
Changing powers supply with new backplane...waiting to hear results

Any thought about possible issues? Reading manual points to loss of 5V from power supply???

TIA
 
Yes original processor with original program. Have tried different processor and downloads program. Both times in run mode. Cycled program to run after downloading.
 

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