Originally posted by samualt
Hmm...I'm still a little confused.
The Gecko's say no more than 20A.
So, do I build one power supply for all three motors? If so, what Amps should it output (because its going to 3 motors)?
Do I build a single power supply at 60V @ 60A (for all three motors)?
Or, should each motor have its own 60V @ 20A power supply? |
Neither: one 30amp/60V supply should do.
Chances are slim that you are going to be pushing all three motors that hard at once, depending on whether you want jack-rabbit acceleration, or not.
FYI, I've run Knee mills for years with 12 amp servomotors, and never had a trip out because I was using all three axis at once. Most of the time, the motors have it pretty easy, and are barely warm to touch. The Z axis gets the most workout, if drilling a few hundred deep holes on a peck cycle. My entire controller package runs off a simple 15 amp, 110volt circuit, and I've never tripped a main breaker yet.