Yes, changing the $30 parameter is on my to do list. That’s part of the thought process that has me here.
I went ahead and did some deep diving into the very poorly written manual and some other forums found via Google that put me on the right track. Fwiw, I have the HY02D223B and I can’t find this specific manual online, so I took a picture of the page I’m referencing. I think I have this problem sorted out (I won’t know for sure until I get to test it), but I made this diagram for anyone else in my situation and also for me in a week or so when I start wiring this up.
But before I begin, the IoT relay has no adjustments, but can accept a trigger input of 12-120VAC or 3.3-48VDC. I certainly did not realize this before.
As an explanation to the poorly written manual, FA/FB/FC is a pass through relay. You provide the power, it provides the switch. This incorrectly translates as a switched 3A/250V output depending on which page of the manual you’re on.
So I’ve decided to redirect 24VDC to the input (FB) and then tap my IoT between the Normally Open Output (FC) and Ground (DCM). When parameter PD052 is set to “01” this relay (FA/FB/FC) is activated when the spindle is in a “Run” state; sending trigger voltage to the IoT, therefore I should have dust collection anytime the spindle is running.
And as a side note, I’ve ordered another IoT that I will wire in parallel (not pictured) using the 24VDC before it goes into the FA/FB/FC relay. This one will operate my CW-3000 chiller so that anytime the VFD is powered on, so will the CW-3000. I’ll leave the VFD on for a few minutes or longer as needed after long cuts so that the CW-3000 has time to slowly cool the spindle closer to ambient.