Output 1,2 on the g540 are open grounds, i think so when its active it closes the ground to make a connection.
Output 1,2 on the g540 are open grounds, i think so when its active it closes the ground to make a connection.
Many(most) solid state relays contain an SCR or thyristor to switch the load - these are ONLY good for switching an AC source voltage into a load. (think AC outlet and light bulb here!) I wouldn't even attempt to make this work for this purpose. While some SSRs use MOSFETs and can switch a DC load I'd avoid those also. What you really need is a honest-to-goodness switch closure here - and a mechanical relay is the only way to get that reliably!
If you are fortunate enough to have the detailed schematic for your cutter - I could recommend an optoisolated circuit that would work if you really want to go the solid state route. As for me - I have a friend's Harbor Freight 95136 and those details are completely missing from the manual, web, etc.
In general, forget the SSR!
Charlie
I was trying to use an SSR to turn on a Router. The G540 did not like it.
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