Victron Ground Neutral bonding with parallel units

[JeffG]

Hey all,

My understanding is Victron has a dynamic GN bonding relay in their MP2's. By dynamic, I mean when connected to shore power the relay is open and the bonding takes place in the shore power panel and when inverting the MP2 closes the relay which bonds the GN inside of the MP2.

If the above is true, wouldn't you have a double bond while inverting if you had 2 MP2's connected in parallel?

Jeff

 

[sunshine_eggo]

Hey all,

My understanding is Victron has a dynamic GN bonding relay in their MP2's. By dynamic, I mean when connected to shore power the relay is open and the bonding takes place in the shore power panel and when inverting the MP2 closes the relay which bonds the GN inside of the MP2.

If the above is true, wouldn't you have a double bond while inverting if you had 2 MP2's connected in parallel?

Jeff

Yes. That's why you disable the N-G bond in all but the first unit, i.e., only unit #1 toggles the bond as you describe. The others never engage the bond.

 

[JeffG]

Yes. That's why you disable the N-G bond in all but the first unit.

is that part of the logic when they are paralleled or would I have to do this manually?

 

[sunshine_eggo]

is that part of the logic when they are paralleled or would I have to do this manually?

You must do this manually.

 

[JeffG]

You must do this manually.

Good to know, thank you!

 

[sunshine_eggo]

Victron Connect:




VEConfigure3 (windows PC only)

 

[JeffG]

Victron Connect:


View attachment 212075

VEConfigure3 (windows PC only)

View attachment 212076

Ok, it’s a software configuration not a physical/mechanical change……even better to know, thanks again!