Logan, I did PLC automated dust collection several years ago. There's a thread about it on SMC and it's in my shop thread about page 23. PLC's can be had for next to nothing now days. The current sensors are inputs to the PLC and the air solenoid is the out put. My dust collection only has a power on switch to enable the system, and I repurposed the remote control to be cyclone power off. Cyclone powers on as one would expect and only turns off my the remote or turning off the control power. It has been 100% reliable. I use it daily. You're on the right track. Happy to share what I've learned if you can use it.
Thanks for dropping in Steven! Ironic...as this is what's been up on one of my monitors for the last couple days:

The more I play with this, the more PLC control on this will happen. I've done ladder logic before, just on AB stuff and this looks easier then that. I've already got the inputs and outputs as you pointed out, and making it PLC driven allows me to trigger the dust collector to start as well then I only need the remote pendant to turn it off. That could even be tied in with a sensor on the lighting circuit so that it shuts off after a specified delay of lights being turned off
I'd actually bookmarked your thread on SMC without realizing it was yours, I hadn't made it very far thru it but thank you for dropping that link! I'm leaning towards current sensors installed in the main panel which is easy with the main tools right now all being 240v and on dedicated circuits. Router table, jointer and eventually CNC are all 120v and not on dedicated circuits so would have to do something slightly different there....probably just making them dedicated circuits. Doing this all with PLC will just make it easier to adjust and scale, as well as make it very easy and "transparent" as you called it to just use the tool naturally and the dust collection just works without any additional thought by the user.


























