Emcoturn 120 lathe retrofit

wow thanx for the files, that is awesome

in wire harness for the stepper, the numbered wires do not match the stepper terminal numbers, the picture attached is the way the Emco harness is wired. I rewired the stepper so that the harness wire number matches the stepper terminal number. 1-1,2-2,3-3,4-4,5-5,6-6,7-7,8-8,9-9,0-10. figured that was it but no go. Still just vibrates and doesnt move. I changed the option switches and found I only have 5 where you have 6 switches, but I matched the ones that are there. still no go. I looked at the ini files and it looks like you have more lines for the stepper config and the values are different. I knew mine were wrong so this is expected, I will try to merge the ini files some tonight and give it another shot.

I notice you have wires on the timing, o.heat/com terminals? where do those connect?

first pass and right away I am missing this section. Does this generate the stepper pulse?

LutzTD wrote: first pass and right away I am missing this section. Does this generate the stepper pulse?

Code:

# ---Chargepump StepGen: 0.25 velocity = 10Khz square wave output--- setp hm2_5i25.0.stepgen.02.dirsetup 100 setp hm2_5i25.0.stepgen.02.dirhold 100 setp hm2_5i25.0.stepgen.02.steplen 100 setp hm2_5i25.0.stepgen.02.stepspace 100 setp hm2_5i25.0.stepgen.02.position-scale 10000 setp hm2_5i25.0.stepgen.02.step_type 2 setp hm2_5i25.0.stepgen.02.control-type 1 setp hm2_5i25.0.stepgen.02.maxaccel 0 setp hm2_5i25.0.stepgen.02.maxvel 0 setp hm2_5i25.0.stepgen.02.velocity-cmd 0.25

No, that section is my chargepump waveform, not related to X/Z stepper motors. You don't need that if you aren't driving a chargepump from the 5i25.

You should only need the sections "AXIS X" and "AXIS Z" from that file.

-Tom

Looks like that is for setting up stepgen2 to generate a square wave output to run a charge pump circuit

( Though the frequency will not be 10 KHz but rather 162.5 Hz,
hm2_5i25.0.stepgen.02.velocity-cmd should be set to 4 to get 10 KHz )

A useful first stage in working out the stepper wiring will be to figure out which terminals are pairs (ie, the ends of the same winding). You can do this with a multimeter.