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Leo Blok avatar image
Leo Blok asked

Multiplus 2 Overload

Hello,

I've got an Multiplus-II, MPPT 35-150 and a Venus Gx.

I configured for ESS. During teh day it's loading my Lion battery. 48v 20A

After day time I set max DC output 350W but it pulls more then 2400 Watt direct to the grid and then got's an error. The left middle lights of the Multiplus are flashing red.

What could be the problem?


Kind regards,

Leo

Multiplus-II
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2 Answers
boekel avatar image
boekel answered ·

where do you set 'max DC output 350W'?

what have you set as AC-in limit?

The problem I think is you're trying to use / test the system with a very small battery, and tried to limit 'inverter power' in ESS? you'll have to limit both 'inverter power' and 'limit charge power', but if the loads exceed the AC-in current limit I think it will pull more from the battery then the 'inverter power limit' allows (not 100% sure)

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Leo Blok avatar image
Leo Blok answered ·

Hello,

I use a battery 48Volt/40Amp.

What I don't untherstand is why he put 2340W to the grid when my house only ask 300W.

I added my Ess setup.


ess-1.png (41.1 KiB)
ess-2.png (53.3 KiB)
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boekel avatar image boekel ♦ commented ·

I see a load of 4800W, of wich 2400W comes from the grid, and 2700W comes from the batteries (the rest are losses / measuring errors)

You didn't tell us what settings are in the Multiplus so we cannot say what is happening. please share the VEConfigure settings. also the multi's setting in the Venus.

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