POLISI3D CNC Digital Microstep driver DM542 Stepper Motor Controller 2-phase Digital Stepper Motor Driver 20-50V DC Max 4.2A for Nema 17, Nema 23 and Nema 34 series stepper motor, Replace M542 M542H

Excellent value for money CNC is working well

ik heb twee van "DM542 Stepper Motor Driver Controller" betaald. ik heb alleen 1x ontvangen.

MIt Estlcam betrieben funktioniert einwandfrei

Though listed as a CNC microstep controller, I bought this to use on my personal electronics project. I cannot attest to its effective on CNC machines but for my application it works perfectly. I recommend looking up the online manual for this controller as the printing on the case does not list all settings - including the holding torque which can be modified via one of the dip switches. The input controls are pulse, enable and direction. There are specific timing requirements for this controller, especially where changing direction is concerned. Again, consult the manual if you are using this controller for your own project - the timing is important! One point to note. The Enable input can usually be left open circuit (the inputs are isolating optocouplers). I expected that you enable the controller by powering the Enable input (turning on the optocoupler). However this is incorrect. Activating the Enable has the effect of disabling the controller and causes the 'error' led to turn on solid. In my application I am driving a 3 Amp stepper motor, at 24V, from my raspberry pi. I use a common positive to the 3 inputs and buffer the pi (which outputs 3.3V) with a pull-low transistor (and base resistor) on each individual input. Works like a charm. Hope this helps! Overall a very nice, easy to use, controller.

Fa quello che deve senza problemi