Hey Branden, hey Andy, hey all,
Of course you can switch workpiece coolant/mist on as part of your G Code program. M7 and M8 commands are made for this. This is something with a clear relation to the workpiece material and tool selection you designed your G Code program for.
But as for turning on spindle cooling and dust collection, this is something different. Especially spindle cooling must run whenever spindle runs and I would say it’s the VFDs job to ensure that. And VFDs are built to do exactly that.
The danger of controlling spindle cooling by a G Code program is that if you run a program where you forgot to insert M7/M8 commands the spindle will run without cooling and die.
Tags: load-1, load-2, 25-pin I/O port, M7, M8, M9 Workpiece coolant control