[Al_The_Man]

You need to get the drive and motor work together first before connecting to Galil.
I would either set the drive for Voltage Mode and use a pot with slider to +ref and the outer ends to +5 -5v, or set to voltage mode and use the offset switch to on, this allows the offset pot to be used to control the motor, reset the balance afterwards.
You could also test it with a dummy low resistive load and see if the voltage gradually increases when the input is increased, use a resistor value that limits the current to the drive max.
Al.