question

tony-from-west-oz avatar image
tony-from-west-oz asked

VictronMultiPlus-II 48/5000/70 Adding Generator to Charge the Battery

I have a stand alone system with this Inverter and solar battery system using Outback MX89 MPPT Chargers and 32KVA LiFePO4 battery.
I had my electrician connect the my 7.5KVA generator to AC 1 in to allow it to be used in extended overcast conditions to recharge the battery and take most of the load in those conditions.
On starting the generator, it had an output of 260VAC and the inverter indicators Mains on and Bulk charging came on, then went off. I tried adding load to the generator output to help drop the output voltage (in case that was the cause of the lack of charging), but nothing helped . The generator will carry the load of 3 kettles at once, but the inverter does not like to connect to it.
Are there settings I can change to help it accept the generator power?
What do I need to connect my notebook PC to the Inverter?



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1 Answer
JohnC avatar image
JohnC answered ·

Hi @Tony from West Oz

Gensets are often problematic like this. They can gag at the instant power hit, go out of spec, then get rejected. Loads on their own can be ok, but that (up to) 70A of charge capacity will test it. There's a lot you can try.. https://www.victronenergy.com/live/multiplus_faq

Dynamic Current Limiter is like a 'soft-start', and almost always needed.

You'll need to acquire a MK3 to USB Adaptor for a PC.. https://www.victronenergy.com/accessories/interface-mk3-usb , and you may find it gets plenty of use also for other things like setting up the charge parameters for your batteries. Youtube help.. https://www.youtube.com/watch?v=V1Zceq02vMA There's more stuff there too, also the Victron website. VE.Configure the standard package to download.. https://www.victronenergy.com/support-and-downloads/software

Ask again if you struggle with any of this..

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