I have a 3 axis Millpwr minus the controller. I'm converting it to use a DSPMC. Each motor assembly has a power supply card (combined with a small PIC controller) and Servo Dynamics amplifier.
The power supply takes AC in, and converts to DC. I'd like to know if the AC coming into the motor assembly is straight 120VAC from the wall or if it is stepped down.
I'd appreciate if a Millpwr owner can measure this for me. Each motor assembly has the AC daisy chained from the control console to the motors. The last motor unit has an extra connector with a cap on it with 3 pins. This is a convenient point to measure it.
The reason I question that it is straight AC is that 120 VAC converted to DC would be 170VDC. The motors are only rated for 140VDC max. The amplifier is rated for 170VDC..