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Remote Install OpenEVSE
1 Comment
OpenEVSE Support
said
3 months ago
A larger gauge shielded pilot wire is what you would need to minimize loss.
Twisted pairs are for differential voltages, one wire contains the signal in a positive voltage the other in negative. Interference affects both the same so the data can be figured out. The pilot is a single analog voltage signal, not a differential pair.
theunknown
I'm installing my OpenEVSE soon and hopeing to have the box installed some distance away from the vehicle with my inverter/distribution board/batteries etc. I'll simply put an isolator (for safety) & type 2 socket on the wall of my carport to minimize clutter. After reading the specs my only concern relates to the CP PWM signal & it's capacity to be reliable over a total distance of up to 50 meters. Ultimately that would depend on the +-12v 250mA source in the OpenEVSE from my understanding, in theory it shouldn't be an issue depending on the current draw of that pin. My plan was to use 1.5mm SDI cable to minimize voltage drop... But perhaps CAT6 twisted pair would be a better choice for the shielding. Any advise/experience relevant to my situation?