you do not need c7 or c8, but you do need a jumper across c7 pins 15-16 -- use standard computer header jumper. this enables motion.
to enable the drive you need +24vdc from front connector C2 pins 9 to 6 - this is called REMOTE [enable]
that is all you need in addition of course to dc bus voltage and logic (connector c4)
software to talk to drive is called MotionLink Plus (NOT MotionLink) I have sent it to you via email