51
General Mach Discussion / Re: Haas VF1 Conversion
« on: June 01, 2016, 01:56:14 PM »
Struggling a bit with finding hardware to play with each other. I have DC brushed motors and 160vdc power supply. Had settled on the CSMIO in the step direction model. This was because I'm not having much luck finding analog drives that will handle the 160VDC and accept diffential encoder input. So I want to use the DG4S-16035 drives. Mainly because they handle my existing power supply which is a really nice rectified 3 phase setup. Also, these are the drives I used on my knee mill conversion and I have been quite happy with them. Thirdly, cost and availability can't be beat.
But, after carefully reading the CS Labs manual, I come accross the fact that their step and direction signal is differential. The drives only accept single ended. This is becoming a silly little circle. Can't really fault their choice as it is the best. BUT, Mach is based on single ended signals from parrallel port so it would have been nice to offer it both ways or atleast match the market that Mach created. Of course I could buy their AC Drive and Motor package for nearly 2K which I would almost consider except, its a reduction in wattage and I would have to deal with the mounting and shaft issues.
Hood, I saw in another post where you have used the DG4S drives with success. Did you have to deal with the Differential vs Single ended issue on the step and direction? A Single to Differential converter is easy to find and readily available. Going the other way, not so much.
But, after carefully reading the CS Labs manual, I come accross the fact that their step and direction signal is differential. The drives only accept single ended. This is becoming a silly little circle. Can't really fault their choice as it is the best. BUT, Mach is based on single ended signals from parrallel port so it would have been nice to offer it both ways or atleast match the market that Mach created. Of course I could buy their AC Drive and Motor package for nearly 2K which I would almost consider except, its a reduction in wattage and I would have to deal with the mounting and shaft issues.
Hood, I saw in another post where you have used the DG4S drives with success. Did you have to deal with the Differential vs Single ended issue on the step and direction? A Single to Differential converter is easy to find and readily available. Going the other way, not so much.