Replaced the stock encoders with 5v ones had to make a mount but works great. now on to the spindle.
cross referencing the wiring on the VFD it looks like I have about 4 connections from the 7i77 to make.
wire 16= forward run / stop command should go to hal pin
wire D1 =external fault input
wire 32 =external baseblock?
wire 1 = master speed frequency reference input +/-10v should go to Aout
wire 2= control common
so what i think is my enable should go to d1 and 32, Aout to wire 1 , forward run to 16, reverse run to a new wire, I'm probably over simplifying.