Replacing G201 with G203v

[aaronkeit]

I was thinking of using some G203v drivers in place of some 201's, since I've already fried a couple in the past(overheating and reversed DC polarity) and want to have some spares around. I am using a Galil 2080 controller and running the +5v as the common to the step/dir signals. If I switch to the 203v which wants to use the ground as the common... do I need to install some kind of inverter or is there another way to wire up the controller/driver? I'm not really an electronics guy so I'm hoping I could buy something to make this work as opposed to having to build a circuit of some kind.

Thanks much,

Aaron Keit

[eman5oh]

In place of the +5 volts run the ground for the 5 volts to the drives and connect it to the common terminal. No need for any thing fancy. If I recall you will need to set these drives to active as opposed to active low as with the 201s.

[eman5oh]

In place of the +5 volts run the ground for the 5 volts to the drives and connect it to the common terminal. No need for any thing fancy. If I recall you will need to set these drives to active as opposed to active low as with the 201s.

I should also add that the 203s will not fix your overheating problem,they may not die from it but the will shut off until they cool down. You will need to add a proper heatsink to the drives to remedy this. Hope that helps you out.

[aaronkeit]

Hmmm.. so its that simple? Just run the ground out to the common instead of the +5v? Also, as far as the overheating goes, I understand that the 203v will keep the motors cooler when they are in Idle... is this correct? This is important because this machine will run constantly but the motor use is fairly intermittant and I've noticed they get pretty hot just sitting there with the 201.

Aaron

[eman5oh]

Yes it is that simple, run the ground from your controller to the common terminal on the drive ant that is it. The 203's will result in cooler motors at idle than the 201's or 202's. Check your controls active low vs active high setting as I have heard this will cause 1 lot step per direction change on some systems, but all else will seem fine.