SSR with blackbox to power router

We recommend (liability reasons) something like docs:blackbox:connect-dewalt-iotrelay [OpenBuilds Documentation] (your country should have something similar)


NB Solid State relays does not handle Inductive loads very well, and leak current even when turned off. Avoid please

 

For my own knowledge, is this what you are discussing? If so I need to buy another IOT switch. I had one of these from when I first built my CNC several years ago and never got around to installing it. I thought I could use it for the dust collector, but I may have thought wrong.

 

Most common SSRs are unsuitable yes.
- leakage current on the common Omron ones are so much, the LEDs on the Dewalt stays on all the time
- the back EMF from an induction motor kills the triac inside in no time
- some cannot cope with the power-on surge current draw

Check industrial automation vendors. Some kind of mechanical relay or contactor that takes a 5v 20mA max signal. (cant drive a relay coil directly).

 

I havent tested it with a VFD, but i would say "why" as the VFD already does the switching for you

 

Thanks. It will be easier for me to stick with the IOT switch, both price wise and for the ease of availability. The fact I know it works helps as well since I already have one for my existing CNC.

Right now I went improvised for turning my vacuum on an off. I bought a two pack of Amazon Echo buttons last year. I used one in my bedroom so I could turn off every light at one time in the house at night because my kids would leave some on. The second I pun next to the computer that is hooked to my CNC. I just push the button to remotely turn on vacuum. It is not ideal, because you have to press the button "long enough" for it to come on and stay on. Too long or two short and it comes on and turns right back off. But it still beats walking over to the switch every time. To be honest, I could use the IOT for that too, but that would require me running another set of wires and I plan to do a significant modification to the CNC soon. Therefore, I would have to redo it all over again.

 

And easier to explain to your insurer if the house burns down (;

 

You have link for these?

 

These are what I purchased. https://www.amazon.com/gp/product/B072C4KCQH/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
@Rick 2.0 - I had to find them from my past orders. It makes me wonder if they quit making them, because when I searched "Echo Buttons" I could not find them. I made one control a smart outlet my shopvac is plugged into in my garage.

 

The output is 5v max 20mA. Never drive a relay directly with that, its a logic output and will get destroyed if you try powering a mechanical relay directly off the microcontroller pin.
It can be used to control a logic circuit in front of a relay

The amazon link relay is inadequate for powering a router (same ones we have inside the BlackBox that we have in there as a Plasma trigger). Get in a Sparky that understands these things. Their fee is a lot cheaper than buying a new house or burying a family member when something goes wrong