well,
Yes. A servo drive will adjust the voltage to the motor to maintain the rpm it is comanded to go. If you increase the load the voltage will increase to maintain the speed. So lets say you want to go 30 ipm, and your axis hits some heavy cutting, the voltage will increase to maintain 30 ipm. If we keep increasing the load, the voltage and (current) will increase until you reach the point where the motor can no longer maintain the speed, at which time the motor will be running at it's rated voltage and current (or more) and the drive will fault.
So, just because the motor is running at less than it's rated speed, it does not mean it's running at less than it's rated voltage and current. Those two are load dependant, not speed dependant.
Eric
__________________
I wish it wouldn't crash. |