So I'm toying around with the idea of a "cheap" ATC for my "inexpensive" Chinese spindle. The option i'm considering is the "RapidChangeATC" system as it is significantly less expensive and less complicated than a traditional ATC spindle. I think I can make it work, but I am trying to figure out how exactly to wire up the blackbox x32 relays to the VFD. I'm running a Huanyang HY series VFD. HY02D223B to be specific I believe. The only information I've found on the forums are these two statements by peter: "Relay 2 = tool direction (M3 vs M4 switches between NC and NO to switch the Fwd/Rev on a VFD)" and "Correct, that was an intended config - pass through NO on relay 1 to COM on relay2" so to wire this to the VFD and blackbox.... I'm lost. I had an idea of how to do it but now I'm a bit confused. I have the FOR input on the VFD jumpered to DCM, which allows it to run forward no problem. Ehhhh, yeah any ideas on how that looks? My original idea was using relay 2 COM to DCM, NO to FOR, and NC to REV, so when M3 command is executed, the relay activates and sends signal to the VFD, or do I have that backwards?
Mainly depends on the VFD. The relays are modular in nature, wire up what the VFD needs. The VFD manual should tell you what to do for the specific VFD. If enable and For shares a terminal you might need to join the relays in series. Or there might be a simple parameter to move enable to its own terminal (like setting X1/X2 a fwd/rev and then X3 for an enable) best to read the VFD manual and see what it needs / what flexibility it allows
Ok, I think I figured it out. The only reference in the manual to FOR/REV function is the attached screenshot. So I originally thought connecting the NO output of the relay to the FOR input on the VFD would make the most sense and NC to REV, but it turns out the M3 command doesn't activate that relay, so putting the NO output to the REV input and the NC output to the FOR input worked (I think... the spindle and motors and limit switches are all disconnected as I'm in the process of building a new CNC table as well as other upgrades to my machine... now if I can figure out why my X axis isn't square with the frame...) But hitting M3 leaves the VFD in forward, and hitting M4 switches the VFD to reverse. Thanks for your help Peter! How, while we're on the subject of inputs and outputs, are there any additional spare inputs and outputs that can be reconfigured in the config file? I may still end up switching to an ATC spindle and would like to have a Z touch probe as well as the OB XYZ touch probe, and I'll need an output to control the solenoid for the tool changer. I can't find much information on the schematic of the blackbox. Thanks!
No schematics, but all pins broken out to terminals already. See https://github.com/grblHAL/ESP32/tree/master/main/boards for the BlackBox X32 Pinmaps and driver (which you'll modify for custom pinmaps)
