G203v + Interface What to Use

[Brenck]

Hi,

I have 3 G203v to control my cnc router and I still dont have the parallel interface board. My question is that since the step and dir and enable signals from G203v are optoisolated, can I use a simple interface board that is not opto Isolated?

[dmauch]

Yes, as a mater of fact you don't want an optically isolated breakout board because the G203 are already optically isolated. I have built at least 50 G203 systesm for various customers and generally don't use any opto isolation and haven't had a single customer with problems with that. The only time I add a buffered breakout board is when I retrofit Techno esel systems and other customs jobs where the home/limit and other inputs require buffers or opto isolation. I love those G203? They are great I almost have no customer calls for tech assist and they never burn out.
Dan Mauch
www.camtronics-cnc.com
low cost cases for G203's and other fine gecko products.
Stepper and servo motors and kits

Originally Posted by Brenck Hi, I have 3 G203v to control my cnc router and I still dont have the parallel interface board. My question is that since the step and dir and enable signals from G203v are optoisolated, can I use a simple interface board that is not opto Isolated?

[Brenck]

Thanks Dan,

I know if I add relay control I might have to opto isolate does but I wont use relays.