7I33TA Just plug it in?

retrofitting a mazak vtc-20b and it is going great, i have step and dir to all the servo drives. that is running off a 7i52s in first connecter P4, i have a 7i44 on p2, i would like to run a 7i33ta in the middle for the analog spindle. can i just plug it in or do i need a new firmware for the 5i24-24?
also seem like a lot to use a whole 7i33ta just for the spindle, maybe i could use pwm and dir with the gs2015 spindle drive?

If you spindle drive can use 5V PWM/DIR control
(and you are not using all 6 step/dir outputs on the 7I52S)
it might be easiest to use firmware that changes one of the 6
step/dir outputs on the 7I52S to PWM/DIR

the manual says it has 1 channel pulse input (33 kHz), 1 channel pulse output (33 kHz), not sure what this is maybe like stepper pulse in. im using 4 channels of the 7i52s for XYZA axis, the A is available for the spindle. still having trouble turning all the step gens on. i got it working before and i followed the forum posts that worked before but i think im doing something wrong. the machine has a spindle encoder, but the manual unclear on how to implement the pulse input. think it would be 1 cw pin, 1 ccw pin, pulse pin (step?) and some kind of enable(run) pin. have a 7i82d that i could put the pins on and use encoder and step(pulse) or pwm out on the 7i52s

looks like it is a 24v pulse in so maybe a npn transistor. i did get the step gens 0 and 3 working. think the easiest way is to put the 7i33ta on the 5i24
and just set it up with analog out to gs20. i have 2 7i82d so io is not a problem.

what do you guys think?

For a 24V pulse, I would use an OPTO, both for voltage translation and isolation.
Using a 7I33 likely needs custom firmware as I don't think there's standard firmware
for a 7I52S+7I33 ( not a big deal but If the drive can take a frequency input, an OPTO
would have the advantage of full isolation)

i cant get the pulse to go though the OPTO, least not the cheap ones. thinking the pulse time is to fast sure there is a way to turn that but it is cold out there right now, the manual shows a npn/pnp switch, freeding a opto.