Mesa 7I77 and Milltronics mill wiring

why 8? I also don't understand how this diode Cr on 22 is connected and what it is for..again need someone who understands to interpret it..Tomo help!

if one of your motors is free, you can try to spin it somehow, and measure if it gives any current between pins 4 and 3 (tacho), of course with the machine completely turned off.

Follow this, no skipping:
forum.linuxcnc.org/10-advanced-configura...le-mesa-7i77?start=0
After you wire and confirmed working the E-Stop and limit switches (the extreme limits that will shut the power to the drives), then check the encoders, make sure the scaling is right, and make sure they count in the right direction.
Only after having all of the above wired and tested and configured, wire a single drive: I would wire a 1Kohm resistor to all those pins on the Mesa side first and test, the first part of schematic you posted is very strange, 22 is still unknown.
And do not change drawings/schematics.

yes,

pin's to servo drive
2- sig
8- lockout

the CR1B is a normally closed relay that is connected to all the drives.

brianTruck wrote:

the CR1B is a normally closed relay that is connected to all the drives.

OK, but to what is the other side connected? From what is that relay controlled? Are all 22 pins connected together?
_
Just a friendly warning, electronic do not have "i am sorry" buttons. You have to be sure what each and every wire does, how and where and to what it is wired, how it is controlled or what it controls, how it interacts with other electronics, etc, etc.

 All the 22's get grounded to cabinet with one wire.