7i77 not sending any voltage on TB5 pins 3 and 4

Ok... I'm not sure I got all that.. but here goes

MAX_VELOCITY = 1.0
MAX_ACCELERATION = 30.0
(Leave the velocity at 60in per minute for now, but reducing acceleration to 12.0)

P = 50.0
(Changing to 10)

FF1 = 1.0
(Leaving at 1)

DEADBAND = 0.0
(Changing to 0.001)

MAX_OUTPUT = 0
(Is this correct @ zero? I don't think so this should be 10 and is my problem why I'm not getting any voltage to move the motors.)

ENCODER_SCALE = -34944.0
OUTPUT_SCALE = -10.0
OUTPUT_MIN_LIMIT = -10.0
OUTPUT_MAX_LIMIT = 10.0
(Leaving all these as is)

Yes the MAX_OUTPUT = 10 got me voltage, BUT...

It appears DYN4 drives logic for enabling and disabling the drives is still backwards... I found some old threads on this... crazy for something that should be so simple. They are looking at it, but I am not very optimistic about not having to find a NC relay to get this to work.

Only bright side is my failures with both sets of drives and motors, has me thinking I'm actually starting to understand all this. (not that I really wanted to... LOL)

Yeah, disables (rather then enables) on drives is fairly dumb

I can see why low power step motor drives do this so it can be ignored
and it will work if not connected. but defaulting to being enabled is not a
great thing on a servo drive.

I think a NC relay or form B OPTO is the easiest solution

I also have drive inhibit as opposed to drive enable. The way my old control worked was as soon as estop was released, the drives were enabled. So their was no "machine on". Is their a way to enable and disable (turn machine on and off) machine along with estop? And are their issues that could come of this?

Looks to be that e_stop latch would accomplish this?

I would not recommend that, it should be enabled only by machine enable. The reason being, if anything goes wrong on the encoders or wiring or anything else, Linuxcnc will not trigger an E-stop, it will however trigger a disable to the drives rendering them motionless.