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brenner-d asked

ESS - MPPT gets disabled

Hello all,

I have a small solar system with buffer battery:



1 x solar cell 410 W

1x SmartSolar MPPT 100/20

1x SamartShunt 500A/50mV

1x Battery 12V 28Ah

1x MultiPlus 12/800/35

Everything is connected to a RaspberryPi with VictronOS via USB cable

2x Ve.Direct to the SmartSolar and SmartShunt

1x Ve.Bus to the MultiPlus



============================



ESS is selected as configuration on the MultiPlus and DC power supply.


Connected on the MultiPlus:
AC input - Grid supply
AC output - continuous load of approx. 200-400W

============================

The following problem has now come up:
When the SmartSolar is connected to the Raspberry, it switches to state: externally controlled and shuts down. If at all 5W - 20W come through. If I disconnect the VD.Direct and restart the SmartSolar, it delivers the full PV power.



Does anyone have an idea?

If desired, I can also provide RemoteDesktop (AnyDesk) if someone wants to look at it.

Many thanks in advance.

I am grateful for any idea! ;)

MPPT ControllersESSMPPT SmartSolarSmartShunt
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Alexandra avatar image Alexandra ♦ commented ·
@Brenner_D

How have you programmed float/absorption etc on the system?

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