Hello, I'm finishing up my first Servo based CNC conversion on a Mazak 14x40 lathe. My question is my Z axis servo has a humming coming from it, that almost sounds like a heart monitor. It hums, then, its almost like its beeping, but very quietly. Is this normal for servos?
Specs:
Smooth Stepper with C25 BOB
Gecko G320x Drives
Mach3Lathe
Keling 850oz motors
72v 20A PSU
Thanks, Scott