I've got a job with a normic 200 series motherboard. Hydraulic installation. It slows down when it steps into the floor in the up direction only. It slows down before it hits the USL REED. This issue only started happening when the board was removed from site and reinstalled. Issue was it was dropped during travel. One of the chips was repaired. Anyone know the design of the board and can comment on what ICs are for the stepping and slowing signals.

Did a little mini dance in the machine room Upon solving the problem. The socket for DM-2 was partially damaged but not noticeable to the nake eye. Replaced socket and tested the traces on the board to the chip. Elevator runs better than new