I have posted a couple of times before with this project. Attached is a very simple circuit of how I plan to control my 2.2kw dust extractors with just turning on the machine. There is a whole lot more I am going to add into the system.
I found the cheapest way was to buy US$1.70 230vac to 12vdc power supplies and install them into each machine. This will give me a 12vdc output once a machine is switched on.
What I have done though is use a single solid state relay to switch on the extractors whereas the KJD series of switches are double pole with built-in under current/voltage protection. I will be adding in those along with a couple of other sensors.
If anyone was interested, I would really be interested in feedback as to whether this will be fine to go or I need to have double pole relays to switch the extractors on and off or can I just do it with the phase hooked up to the relay on a single wire to on/off?
Also I am looking at a way to cheaply put in a 30 second delay before the extractor switches off along with the current/voltage protection. I have found these to put in the low voltage side:
https://www.aliexpress.com/item/1pc.../1100514896.html?spm=2114.13010608.0.0.sw6L0g
Now I just need to find current/voltage protection.
But I am VERY keen to hear from anyone more qualified than I if I have missed something?
Regards Boyd
I found the cheapest way was to buy US$1.70 230vac to 12vdc power supplies and install them into each machine. This will give me a 12vdc output once a machine is switched on.
What I have done though is use a single solid state relay to switch on the extractors whereas the KJD series of switches are double pole with built-in under current/voltage protection. I will be adding in those along with a couple of other sensors.
If anyone was interested, I would really be interested in feedback as to whether this will be fine to go or I need to have double pole relays to switch the extractors on and off or can I just do it with the phase hooked up to the relay on a single wire to on/off?
Also I am looking at a way to cheaply put in a 30 second delay before the extractor switches off along with the current/voltage protection. I have found these to put in the low voltage side:
https://www.aliexpress.com/item/1pc.../1100514896.html?spm=2114.13010608.0.0.sw6L0g
Now I just need to find current/voltage protection.
But I am VERY keen to hear from anyone more qualified than I if I have missed something?
Regards Boyd