I'm installing a generator auto start near the remote panel for my xm1800 inverter and instead of running new wires to the battery bank for voltage testing i'd like to tap into the remote for the inverter. Out of the 4 wires that run up to the remote panel (The rj-11 extension cable has yellow, red, green, and black) which are the pos and neg feeds that pass through the inverter? It's got to have them as the remote panel displays the voltage level as well....
I have asked the same question at Xantrex support however they still have not gotten back to me.
I don't really expect anyone to know this answer but thought I'd ask it anyways...Tx for reading the question.
I'm kind of leary on using my multimeter as I'm not sure what will happen if I complete the wrong circuit, but as a last resort I'll start testing wires on Saturday (I'll start with the red and black just in case Xantrex followed standards for DC wiring)
I dont think that will fly. The remote panel is likely just a display. The actual brains are most likely in the inverter. The voltage you see at the display will always be the same. Remember it reads the current draw too. That requires a shunt and the current in the little rj wires is way too small to be accurate.
Just a guess.
Xantrex is pretty good about getting back to you. They told me no go when I wanted to add a second display to my XM1000...
I agree, I have the same unit and I wouldn't tie into the display wiring for fear of killing something expensive inside. I'll bet none of the 4 wires would be 12v, but only a low voltage to light up the display. You don't have to go all the way back to the battery bank if you can find any 12v source nearby, like a light circuit or similar.
I have the same unit. Having looked at the circuit board on the LCD display, I believe those to be "data lines", not simply a set of power wires. Lot more involved than simply tapping into those wires. Two of the wires might be data lines, and two might be 5V power for the TTL circuitry. Dunno, not stabbed it with my DVM.
Offline
