No, the MOSFET on the RAMPS board directly controls the SSR.
The + and - leads from RAMPS connect directly to the SSR. Polarity must be maintained.
Wire the neutral lead to the heated bed and the hot lead to one side of the SSR. A jumper then comes off of the other SSR terminal and goes to the heated bed.
Very simple.
Auber Instruments carries SSR's and the appropriate heatsinks.
[www.auberins.com]
[www.auberins.com]
[www.auberins.com]
It's a good starting point. The 25A SSR should be more than enough.
The + and - leads from RAMPS connect directly to the SSR. Polarity must be maintained.
Wire the neutral lead to the heated bed and the hot lead to one side of the SSR. A jumper then comes off of the other SSR terminal and goes to the heated bed.
Very simple.
Auber Instruments carries SSR's and the appropriate heatsinks.
[www.auberins.com]
[www.auberins.com]
[www.auberins.com]
It's a good starting point. The 25A SSR should be more than enough.