Koh Young 3030VAL Failure on Homing

My Koh Young 3030VAL errors on the homing routine.

The "DTool" "MCS" gives me an error "Before homing, X-AAxis already checked negative limit..." "Before Hoking, Y Axis already checked negative limit..." "Please turn off the control-power-switch, and release status "

When I check the IO page it says Y-, Y+, X-, X+ are all on.

When measuring the voltage it swings from -24v to +24v depending on which optical sensor is blocked. I've already replaced the motion controller board inside the gray PC. I am looking at the inner connect board that takes all of the individual sensors and connects them to the PCI1/2 cables but am not seeing anything wrong with it.

Any ideas?

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