question

Fabien Angonin avatar image
Fabien Angonin asked

40A AC current sensor for PV not working well

Hi,

After buy and install a 40A current sensor to mesure my PV production in the Multiplus II 48/3000/35-32 with Cerbo S GX

My victron device detected the sensor after plug it and programm it on the assistant.

AUX2, ALL DIP AT 0...)

But the mesured values stay fixed and are not be actualised ( 135W for exemple ).

Same problem with Temp sense / aux1 and aux2 input.

the current sensor correctly works.

So I test it with a pro amp injector case :

0 to 8A injection result good 0 to 4,5VDC variation at the current sensor output.

So I think the problem is not the sensor but the Aux port data who is not refresh.

If I unplug the current sensor the inverter not detect the unpluggin.

The only way to refresh values is to use the program import configuration page.

I dont know if it is a problem with VRM or the inverter firmware

I need your help, so if it not works i will install the ET112 power mesurement

Regards.

My installation :

https://vrm.victronenergy.com/installation/396957/share/76250287

Screenshots :

https://we.tl/t-GyDHnKF5Mn


Multiplus-IIVRMsensorcerbo s
2 |3000
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1 Answer
Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

Let the system running for a few days the sensor needs a while to calibrate.

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Fabien Angonin avatar image Fabien Angonin commented ·

Yes thank you it is mentionned in the assistant.


I stop touching the Multiplus configuration.


I tell you in few day if the current sensor work or not.


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Fabien Angonin avatar image Fabien Angonin Fabien Angonin commented ·
Hi,


We are 3 days later.

Same problem.

And sensor as count 0KWH.

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