Rookie plc worker

tjraider

Member
T
Join Date
Aug 2006
Location
tustin ca
Posts
1
PLC not receiving voltage, display screen and i/o not lighting up. power supply receiving 115 volts ac. When you remove plc wire from power supply you get 24 vdc, but when you attach plc wire power supply voltage goes away.
 
One of the devices powered by the 24v supply has a problem, disconnect everything and connect just one item at a time until you locate the one that has the problem.
 

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