@clover

machinedude

machinedude
@clover since your the electronic whisper here it seems :) I would like to talk in depth about spindle control. I'm trying to use a AC servo as a spindle drive but the wiring is proving to be difficult. the encoder has such a high resolution that it can only go down to 2000 PPR I believe and the only reason someone else here was able to take it down to the 100 PPR was he had to contact DMM directly and get something custom to take it that low. but his is still not working as it should be.
 

clover

clover
since your the electronic whisper here it seems

Thank you @machinedude for the compliment, but I feel it is misplaced. I was a professional electronic guy my whole career and all I am doing is applying this knowledge to those who have not been gifted in this way. Additionally, I am retired and have a little more time to spend on such activities than most.

I am not a Masso or a CNC or a motor or a driver expert, all I do it look at the manuals and try to make sense of it all and hope that it is helpful. Also, by answering some of the questions posed here it will relieve @masso-support from this chore and allow them to spend more time on development.

If you can give me the link/s to your AC servo units I'll see what I can fathom out.
 

machinedude

machinedude
I have some screen shots of the connectors with the pins and what they are if that helps rather than hunt through the whole thing. I went to school for electronics but never finished so I only have a 1/3 of my education :) I know just enough to get me into trouble :) these are the basics for all the logic circuits
 

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machinedude

machinedude
one question I had was the settings in the control software? you have two choices a VFD setting or a PWM setting. I would like to explore all my options as far as connecting to masso. the ac servo drives basically put out a PWM signal and it seem like you might be able to go that route with the DMM drives but how it would tie into masso is not so clear since most of what I can find is focused on the VFD drives
 

machinedude

machinedude
pin 20 on the DMM drive has me curious. I was looking in the DMM PFD for the drive and it seems you have some logic voltage on that pin possible pin 8 and 21 as well
 

clover

clover
Tomorrow, (it's Sunday evening here - after a heavy weekend) I will have a look at your information above and see what we can work out.
 

machinedude

machinedude
@clover no problem maybe this could end up being a in depth information topic for DMM users. I appreciate you input regardless. when ever you get to it is fine by me I'm just glad your willing to help :)
 

masso-support

MASSO Support
Staff member
Quote from machinedude on December 16, 2018, 10:07 am

one question I had was the settings in the control software? you have two choices a VFD setting or a PWM setting. I would like to explore all my options as far as connecting to masso. the ac servo drives basically put out a PWM signal and it seem like you might be able to go that route with the DMM drives but how it would tie into masso is not so clear since most of what I can find is focused on the VFD drives

VFD control using 0~10v signals is preferred for spindle control.
 
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