The A contactor is energized sending 120vac to the opto- coupler on the hyd 9806 board which converts 120vac to 24vdc
The signal is then sent to input I78 PPU FSPX
Output O45 then goes high to pick up FSP relay




Check the NO contact on the A contactor if it’s not that contact then it’s going to be the opto coupler on the main relay board that converts signal from AC to DC

Last edited by Snkrhead; 08/01/20 02:47 AM.