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31

General Mach Discussion / Re: Spindle requires two inputs for control

« on: October 15, 2014, 10:06:41 AM »

I was hoping there was a no-hardware way, perhaps some sort of macro or something that could be configured as an output and in turn trigger other outputs. However, all this turns out not to be necessary. The inverter manual, written in Chinglish, was ambiguous to say the least. It turns out that the FWD only runs the spindle "forward" (CW), in spite of what the manual says. There is another input that can be configured to serve as the REV input. In each case, pulling the input low powers on the inverter, but in the appropriate direction.

In any event, thanks for your advice Thomas.

32

General Mach Discussion / Spindle requires two inputs for control

« on: October 14, 2014, 06:09:39 PM »

The inverter controlling my spindle requires two inputs - one switches the spindle (actually the inverter) on/off. The other controls direction. The vendor configured the machine so that CW and CCW both trigger Output#1, which is wired to the on/off inverter input, so at least the spindle turns, but it's always CW (better than the alternative). How do I get the spindle commands (M3, M4, M5) to trigger TWO outputs? One output must respond to spindle direction -these is easily accomplished form the spindle config screen. It's the other one I can't figure out. I need an output to respond to any command turning the spindle on or off. How do I do this?
Thanks.