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ahaz-alex avatar image
ahaz-alex asked

Multi RS Solar 48/6000 Error 27

Hey,

I've just received my new Multi RS Solar 48/6000.

Connected only to a 48v / 300ah lead acid battery system, it shows error 27.

I can reach it via Bluetooth, but the inverter part won't start. Also when I connect PV, it doesn't show the voltages.

Any ideas besides returning the unit?


Kind regards

Alex


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Matthias Lange - DE avatar image
Matthias Lange - DE answered ·
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ahaz-alex avatar image ahaz-alex commented ·

Yes, tried that multiple times, as well with different sources (batteries, PV, public grid at AC In, and all combinations).

Always with 10 minutes break. Didn't help :-(


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Matthias Lange - DE avatar image Matthias Lange - DE ♦ ahaz-alex commented ·
Ok, in that case I guess you have to take it back to your seller to get a replacement.
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Alexandra avatar image
Alexandra answered ·

@Ahaz_Alex

Reset the settings. Update the firmware.

Remove everything from the system. Wait 10 minutes. Make sure all is discharged internally.

Connect the battery using a precharge resistor or circuit.

Then try again with setting up the paramters, connect ac wiring, solar etc.

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ahaz-alex avatar image ahaz-alex commented ·

@Alexandra Thanks for this genius idea. Shame on me for not trying that before.


Disconnected everything, waited half an hour, used a 50v 10a laboratory psu with a 1A inrush limit. Connected, booting, error 27....

Damn, nice try, so thank you.


Current is at 30mA after the inrush moment. Seems legit for me.

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Alexandra avatar image Alexandra ♦ ahaz-alex commented ·
@Ahaz_Alex

Sucks that it didnt work though...

You have definitely made a good go at it though.

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