The Shop > Tools
Isel CPM3020 cnc machine - electronics rebuild
awemawson:
Chris,
Just guessing, but if it was RS232 driven, then the system board that you have probably receives G code, or a proprietary code, and drives the steppers directly. So you won't have an identifiable 'driver' that takes in step and direction, just a power stage for each winding of each stepper. This is likely an ic per stepper - probably with fins.
raynerd:
Cheers Andrew. Just ordered stepper drivers, motion control and BOB so next step is removing all this existing electronics.
The PSU in here is 24.8v - is this good enough or do I need to swap out for higher voltage unit??
Joules:
Chris, when you remove that controller can you have a look at the stepper chips and see if they happen to be Toshiba TA8435HQ's. It's a long shot but my old cnc router has blown one of those and I can't seem to find any. Thought it might be worth asking if you are just going to toss the controller.
seadog:
There are plenty of them on eBay - http://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p5468.m570.l1313.TR0.TRC0.H0.TRS0&_nkw=TA8435HQ&_sacat=0
raynerd:
A little confused with this PSU.
I've taken a picture of the label and attached it. (One with light shining and glare is 10v )
I'm reading 29.8v across the capacitor which doesn't match any of the stated voltages?
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