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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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brenner-d avatar image brenner-d Alexandra ♦ commented ·
Via the ESS Assistant of the Multiplus, but the settings there are not like the Battery Settings in the MPPT if you configure it there
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Alexandra avatar image Alexandra ♦ brenner-d commented ·
I am assuming you are running a load, so are expecting the mppt to wake up for that. Does your battery need to be charged at this point?


So confirmed that the battery settings are the same on all the devices for charged voltages (multiplus and mppt)?



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