Brother TC-211

14 - 15 stays at 22 volts all the time
14-16 same
15-16 no voltage moving or still

OK so that says that CN8 pin 15 (START) is grounded to 16 (GND) to enable the drive as expected.
so the 7I77 enable wiring (ENA+ PIN15 ENA- to PIN16) is correct.

So you might try re-attaching the 7I77 and then measuring the same pins (when you start linuxcnc)


(perhaps the battery test is a bit crude for this drive and it faults on
too high an acceleration which will happen when the battery is connected)

Be very careful at this stage, a runaway is very likely
(this is much safer to do with motors mechanically disconnected from linear axis)

Ok got the motor to turn. My mistake. had the pins wrong into the 7i77. I got the servo motor to turn, only thing is it has a small constant creep, and follow through when I use it. (won't stop turns slowly)

mblaszkiewicz wrote: Ok got the motor to turn. My mistake. had the pins wrong into the 7i77. I got the servo motor to turn, only thing is it has a small constant creep, and follow through when I use it. (won't stop turns slowly)

That's not all that uncommon, and the PID will catch it.
There might be an adjustment, but it is unlikely to stay perfect even if you get it perfect once. This is the reason we have closed-loop control.

mblaszkiewicz wrote: Ok got the motor to turn. My mistake. had the pins wrong into the 7i77. I got the servo motor to turn, only thing is it has a small constant creep, and follow through when I use it. (won't stop turns slowly)

I have a couple of Servo Tuning Guides here .

JT

I think my next item on the list its the spindle. I need to get that turning at least then limit switches. I still don't know where they come into the machine