It depends. If the drive can be programmed to limit the current output, then maybe. I have done this with VFDs by limiting the output voltage. But I have only done this for testing, never have actually tried to run a motor in an application this way. It is common to oversize a VFD and cut the max output current back to the motor nameplate current. There is not a lot of difference between a modern VFD and a AC servo drive.
That is a good question. All servo drives and VFDs that have an AC input convert the AC to DC internally then output either a PWM square wave in the case of a brushed DC motor, or in the case of brushless DC motors a 3 phase PWM sine wave. Brushless DC motors are 3 phase motors. Some brushless drives (Galil and maybe others) will run both brushed and brushless DC motors.And the doozie: brushed D.C., brushless D.C, and AC servos. DYNs low voltage drives are powered by a D.C. Supply. But their AC motors? How do you know what motor can connect to your particular drive.
The motor specs need to be pretty much matched to the drive. Normally you need to match the voltage and the minimum inductance.
The bottom line is that trapezoidal commutation requires that the motor have Hall sensors installed. Hall sensors are not field installable, they are inside the motor housing, buried in the windings I think. Most BLDC motors that I have seen have Hall sensors.Finally, Galils internal drives are either trapezoid communication type or sinosuidal. Can you again here explain how one would know what motor type you can hook up?
the following excerpt is from Trapezoidal vs Sinusoidal Brushless Servo Amplifiers | Galil
Trapezoidal vs. Sinusoidal Commutation
Trapezoidal commutation is the most cost effective way of controlling a brushless servo motor. It is perfect for higher speed applications and applications where the motor and mechanics will eliminate the torque ripple that occurs during switching current from one phase to the next. Hall sensors are required for Trapezoidal commutation.
Sinusoidal commutation is great for lower speed, direct drive or linear motor applications where the torque ripple of the motor phases needs to be minimized. Since the current to the motor phases are weighted as sine waves, the torque going through the motor is smooth and has minimal ripple. It also allows the mechanics to be simplified because Hall sensors can be eliminated.