Homer boxes are cheap as hell and much easier to work on than aluminum so I figured I would use one for an initial test control panel (box) build.
Contents:
3x Watlow 96 PIDs
3x 40A contactors
1x 25A SSR (will upgrade to 40A soon)
1x 12V transformer (for arduino mini pro & rpi not shown)
1x Key main switch
2x Illuminated pump switches
2x Element LEDs
1x 3way element selector
1x Estop (not shown)
All of the PIDs, in addition to primary sensor input and SSR output, they have an additional output which can be set to report process value or percent power. They also have an extra input which can be use for remote set points. Thats where the arduino and rpi come in. The aduino will handle all of the A/D conversion and the rpi will run some remote monitoring and control software I write.
For those who are interested, I mounted all the components to 1/4" MDF. A piece with the dimensions 7"x16" fits perfectly.
Contents:
3x Watlow 96 PIDs
3x 40A contactors
1x 25A SSR (will upgrade to 40A soon)
1x 12V transformer (for arduino mini pro & rpi not shown)
1x Key main switch
2x Illuminated pump switches
2x Element LEDs
1x 3way element selector
1x Estop (not shown)
All of the PIDs, in addition to primary sensor input and SSR output, they have an additional output which can be set to report process value or percent power. They also have an extra input which can be use for remote set points. Thats where the arduino and rpi come in. The aduino will handle all of the A/D conversion and the rpi will run some remote monitoring and control software I write.
For those who are interested, I mounted all the components to 1/4" MDF. A piece with the dimensions 7"x16" fits perfectly.