Hello. Recently installed an Orion XS DC to DC non isolated charger. Ran a 4AWG wire from the CCP of a Transit Van to the charger at the back hoping to set voltage as the parameter to start / stop charging. Now, althought a multimeter reads more than 13 volts at the wire, when connected to the Orion it says that it is receiving 0.3v so it shuts down. Please advise.
What voltage do you measure with the input connected to the Orion
Between orion input + and orion negative
Between orion negative and vehicle ground/body
I suspect that the Orions negative is connected to the secondary batteries negative, but not also to the vehicle ground/body.
Also question of my own, ive soon got to install an Orion XS in a Transit Custom myself, i looked trough the customization handbook or whatever its called, but i havent seen any location descriptions, just connect to CCP, but no explanation on where that is to be found. Do you mind sending me a picture of where that connection point is?
Thanks for your prompt response. That could be it. Full size Transit’s have a Customer Connection Point located on the rear left side of the driver’s seat. Since mine is a 2018 year model 350 it only has one connection point but I believe newer models have three. Mine produces 60 amps of continuous power with an integrated fuse. When it has the 3 connection points, one of them is ignition regulated (only works when the vehicle is on). There is a kit for older models to add the two more points it doesn’t have. Since mine is continuous, I was hoping I can set the Orion to start charging at a certain voltage since the voltage at this connection point changes if the vehicle is running or not. Hope it helps.
Thanks for the info 
Yes, in the Orion settings thats done trough the engine running detection settings.
I’m having the same issue, though the Orion, Alternator, Starter Battery and Leisure Battery sharing the same ground: the body.
I hope that Victron will - some day in the future - allow the Orion XS to read the input voltage from a Smart Battery Sense at the starter battery.
If there’s voltage drop between the sensor and orion, the orion won’t be able to work correctly. It needs to read actual voltage at the orion.
But the voltage at the Orion only drops due to the current load. The voltage coming from the starter battery and alternator is still totally fine.
Without a “neutral” voltage reading at the starter battery directly, there is only one workaround to keep the charging current up high: lowering the engine detection cut off voltage as far as possible. Which isn’t what it is designed for in the first place.
Ah I didn’t quite understand the problem at first.
You could use the enable pin to turn the charger on and off with key and disable the auto shutdown feature?
I think you haven’t got it yet.
The Orion decreases the charge current, the closer the input voltage gets to the cut off voltage defined in the engine running detection feature.
This is caused by the voltage drop the Orion reads at the input at higher currents, though the input voltage is actually stable, or at least higher.
That‘s why other B2B Chargers from other makes have an additional voltage sensing wire running parallel to the load wire.