Hi MKWhit,
Do you have any wiring diagrams? Finishing the system without any would be very difficult.
It looks like those AMC Motor drives are +/-10V Analog Drives so I would expect you to need the Kanalog option board to go with KFLOP.
It isn't even clear to me where the KFLOP+Kanalog was even intended to be placed.
You seem to have differential encoders based on the one breakout board having AAX+ AAX- ABX+ AB- signals for the X Encoder differential AB quadrature signals.
Regards