question

Neil Pavia avatar image
Neil Pavia asked

generator runs but doesn't connect

Hi All,

I've got a Quattro 15000/48 system running on solar.

at night in winter I need to top up with a generator for a few hours.

I have a 4000W generator but set the system to 6AMPS to keep it safe.

When I view AC 1, voltage is detected, Hz are 50, but the Inverter doesn't take load - I plug an appliance directly into the generator and it works fine, but the Inverter wont take it. Loads on inverter are very low at charging time to avoid voltage fluctuations - AC1 keeps showing disconnected.

I'm at my wits end. any ideas that may help it tie to the genny?

image attached.

MultiPlus Quattro Inverter ChargerGenerator
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6 Answers
harold avatar image
harold answered ·

Did you set the Quattro to accept a wide range?

And is the UPS function off?


There are some similar posts, were I got my advice from.

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Neil Pavia avatar image Neil Pavia commented ·
yes I did all this - no joy
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Odd avatar image
Odd answered ·

Had the same problem, Had to turn off ups function


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Neil Pavia avatar image Neil Pavia commented ·
unfortunately didn't change anything for me
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JohnC avatar image
JohnC answered ·

Hi @Neil Pavia

Look here, particularly the Dynamic Current Limiter.. https://www.victronenergy.com/live/multiplus_faq

It may be something else too, but we'd need more info. Like can you hear relays clicking in the Quattro? or any other observations..

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Neil Pavia avatar image
Neil Pavia answered ·

Hi John,

thank you for your reply.

The only clicking of relays I hear is when it does connect and got to "passthru"


I'm trying to get to the VE.BUS.monitor as this would give me an idea why its not connecting but my interface doesn't seem to have it.

would you know how to access this by any chance?

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Matthias Lange - DE avatar image Matthias Lange - DE ♦ commented ·
You only see the VE.Bus Monitor if you are connected directly to the Quattro with a MK3 interface.
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Neil Pavia avatar image
Neil Pavia answered ·

I've tried two generators now. both wont tie up.

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love2learn avatar image
love2learn answered ·

I had the same issue until I disconnected the ground wire from the cable going to the generator. How do you have your ground relay in the multiplus configured?


Obvious statement, but, but make sure the breakers on the generator are properly set and not tripped.

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Neil Pavia avatar image Neil Pavia commented ·
all of my ground wires are wired to a common bus which tie into the copper grounding wire - never thought about this
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love2learn avatar image love2learn Neil Pavia commented ·
You going to give it a try? See if it works by just disconnecting the ground from the terminal block that goes to your generator. If it works, you can troubleshoot further from there.
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