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GTaylor

No output voltage from 1734-OB8S

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GuardLogix program is  showing 4 separate OTE energized for this card.  The indicator lights do not light up and I have no voltage on the outputs.  No faults on I/O or PLC.  I inhibited the card and reset and un inhibited to no avail.  Replaced the card and still nothing.  I cannot find anything wrong.  Please help.

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May want to check the configuration of the four points and the programming of the outputs.

This card has eight single or 4 dual outputs.  

But the Duals must still be both fired at same time or outputs turn off - Safe State.

see pg 93 here - https://literature.rockwellautomation.com/idc/groups/literature/documents/um/1734-um013_-en-p.pdf

 

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