FIRST POST!
I am building a custom controller box for my eBay 3040 CNC frame using a G540 controller. I got four VEXTA PV267-02BA-C1 stepper motors. They are 6-wire unipolar , 2-phase, 2A/phase motors:
According to the Gecko Motor Wiring guide (Figure 10), this is how to connect a unipolar motor as a bipolar motor:
It says "just remember to set the drive current to exactly half the motor’s rated unipolar current rating".
So I just want to confirm with the experts so I dont blowup my G540. I need to set the current limit resisters for these motors to 1 Amp (1/2 the unipolar current (2 Amps)), correct?
The G540 document states "The resistor is calculated by taking the current in amps and multiplying by 1000. If your motor is rated at 2.8A per phase you will have to use a 2.8K 5% 1/4W resistor." So, in my case, for a full-winding configuration, I want to use a 1K Ohm resister to set the output current to 1 Amp ((2A/phase) /2 * 1000 = 1000 Ohm)?
IF I wired the motors up in half-winding mode, I would use the 2A/phase rating and a 2K Ohm set resister?
Also:
Full-Winding Mode = Slower with more torque?
Half-Winding Mode = Faster with less torque?
Thanks for helping me solidify my understanding here!