I'm hoping someone can help me out with a newbie question. I have a Stepcraft MM-1000 DI milling motor (which is basically a rebranded Mafell FM 1000 PV). This is equipped with a 4-pin "PV interface." Is it possible to connect this directly to the BlackBox X32? If so, could someone help me figure out which wire goes where? I've attached the wiring diagram from the user manual as a PDF. I've also found several sources for connecting to a Duet, but I don't have a firm enough grasp on this part yet to get beyond following exact instructions. Those sources linked below, along with the basic gist of the wiring setup. Thanks for your help! Nigel Wiring a PV Cable from a Mafell Router into the Duet? Connect a AMB Kress or Mafell spindle with digital control The cable for the 4-pin connector uses this setup: Pin 1 : Upv : Brown = power supply (PV Interface) Pin 2: Us : White = control voltage speed (PV Interface) Pin 3 : Uo: Black = display remaining runtime in overload mode (PV Interface) Pin 4: GND: Blue = reference potential for voltages of the PV Interface
Seems to me it is as simple as connecting the "GNG and 0-10v output" on the BlackBox to the "GND and Us" connections on the Mafell Then set the $30 and $31 values in the GRBL settings to the correct values as well. Dont forget to calibrate the 0-10v output before connecting. once connected and configured a command like M3 S14000 will turn it on at about that speed and M5 will turn it off.
Thanks, David! That makes sense. Now that I'm looking ahead at the GRBL settings and G-code it's starting to click a bit better. It's that power supply wire that is still throwing me. It seems to suggest that the onboard controller needs DC power to operate, separate from the AC power to the motor. Anything from 8-56 volts, otherwise it sticks to manual operation. I guess we'll see if I'm able to control it with that cable capped off and go from there. I'll report back when I get around to this! Thanks again.
Hi, This seems the only tread on the matter of connecting the Mafell 1000 PV or similar to the black box. Currently in the process of connecting mine to my X4 blackbox. Did not find any other info on the matter yet. But I would expect it to be exactly the same for the X32: What I did find that offers a little additional info to the posts before: Connections Mafell side explained: Upv, 8-24V. Required to put the Mafell into actually listening to the 0-10V signal. Connect to 24 voltage going to Blackbox Us, 0-10V. The actual control voltage connection Connect to Toolhead 0-10V U0, not required for operation. Gnd, Connect to toolhead GND Connecting the spindle like this will control the speed, but not switch the spindle on or off. That needs to be done manually. Or via a relay, for which I'm currently looking for the best way of doing it: Either by using the Coolant connection, outputting 24V to a relay, or using the Relay connection, but I don't think that can handle 230V/ 1000W.. So that would need to switch a 24V power to control another relay. Open question for me now is whether the on board relay can be used together with the 0-10 volt. that would than both respond to the M3 S.... / M5 command Is that just a matter of setting the jumper to the M3/M5 option for it to work?
Coolant would be the better option yes, you are correct the relay is not meant for a) use with PWM (Same output, relay will chatter) and b) mains voltage - its meant more as a plasma trigger When using PWM the relay onboard chatters - with a plasma M3S1000/M5 is either on/off no variable speed involved
All clear! Thanks for confirmation. When finished and working i’ll create a bit of a diagram how I connected it. Don’t think it’s a much used option. But might help others looking for similar spindle options.
