Victron B2B and Vanbitz Battery Master query

[Hoovie]

Thanks so much for taking time to do this very much appreciated and now I understand Victron don’t do that very good. I always need to know the correct way that works or I won’t try lol

No Probs,
TBH I never noticed before how it talks about "Engine" shutdown as opposed to just Voltage thresholds, which is what it is in truth.

if someone has one of these and has not run a D+ line to the Remote Input, not a problem. If you connect a mains charger to the Starter Battery, you can simply go into Victron VE.Connect and turn off the charger, or pull the little green plug out (make sure you don't drop it though! No Plug = No Charging.

 

[seanwinder22]

No Probs,
TBH I never noticed before how it talks about "Engine" shutdown as opposed to just Voltage thresholds, which is what it is in truth.

if someone has one of these and has not run a D+ line to the Remote Input, not a problem. If you connect a mains charger to the Starter Battery, you can simply go into Victron VE.Connect and turn off the charger, or pull the little green plug out (make sure you don't drop it though! No Plug = No Charging.

Brilliant looking forward to setting up now as this was the only issue I was getting. I have just set up a 300ah lithium also a hybrid 230ah acid to a vsdr device which powers from 480w solar 50 mppt now this b2b it’s all running brilliantly with the multiplus and x2 bmv-712 this was the only issue
The vanbitz was setting high volts from the mppt or charger on the multiplus turning the b2b on
So I will set this D+ signal up and get this under control

 

[AgeingAndrew]

Not sure why you connected the L to +12V? It would have no effect on anything.
I also don't know why you need to disable the Engine Shutdown detection. By doing that, the charger will stay on regardless of the voltage out the alternator and is totally reliant on the D+, which is not that desirable an action IMO.

Section 4.5 of the Victron Orion-TR smart manual is quite clear about the L and H connectors. Here it is quoted

4.5. Engine shutdown detection override​

In charger mode the “engine shutdown detection sequence” determines if conditions are met to enable charging, see chapter 5. The “engine shutdown detection override” forces the charger to allow charging independently of the engine shutdown detection. Engine shutdown detection override is activated by applying >7V to the remote L-pin. This allows external control (e.g. ignition switch, CAN bus engine on detector) to enable charging.

Notice​

This function does not override the remote on-off function. Remote connection a), b) or d), as shown in Figure 3 must be configured in combination with engine shutdown detection override

In my van I do not want the B2B to charge the LB when the engine is not running; I do not want the B2B to charge the LB when the SB is being charged by its own charger, hence I needed the L pin held high and the H pin connected to D+.
I could have disabled the B2B in VictronConnect, but as the features to achieve what I needed are provided by configuration, and are hence automatically applied, that's what I used.

 

[Hoovie]

Section 4.5 of the Victron Orion-TR smart manual is quite clear about the L and H connectors. Here it is quoted

4.5. Engine shutdown detection override​

In charger mode the “engine shutdown detection sequence” determines if conditions are met to enable charging, see chapter 5. The “engine shutdown detection override” forces the charger to allow charging independently of the engine shutdown detection. Engine shutdown detection override is activated by applying >7V to the remote L-pin. This allows external control (e.g. ignition switch, CAN bus engine on detector) to enable charging.

Notice​

This function does not override the remote on-off function. Remote connection a), b) or d), as shown in Figure 3 must be configured in combination with engine shutdown detection override

In my van I do not want the B2B to charge the LB when the engine is not running; I do not want the B2B to charge the LB when the SB is being charged by its own charger, hence I needed the L pin held high and the H pin connected to D+.
I could have disabled the B2B in VictronConnect, but as the features to achieve what I needed are provided by configuration, and are hence automatically applied, that's what I used.

Fair enough Using the VE.Connect seems a much cleaner way to do it and keeping the engine detection enabled even better, but each to their own.

 

[seanwinder22]

Just to let everyone know I got it set up thanks for the help guys it’s running brilliantly now with the vanbitz

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[Guzziando]

Thank you, this is a really useful thread. I have now connected D+ wire to H pin of green plug. My battery does not yet meet the parameters to charge, so need to take it for a test drive.