question

Trung asked Sep 24, '23

Overriding ESS during Communication loss

Hi All

I hope everyone is good and well in this community.

I hope there is an expert out there that can help me (thank you in advance):

My setup - MPII - Lifepo4 / Cerbo GX / Solar arrays (small ~1kw).

I am using ESS to charge batteries when there isn't a lot sunshine and when electricity rates are low. I have had instances when there is "Communication" loss/errors and I have tried to reboot everything but, the communication loss/errors did not clear.

So when the loss/errors occur, I am unable to set ESS to charge at a cheap electric rate. I have tried to use the front rocker switch to get the MPII to Charge Batteries but, nothing happens.

Is there a way that I can override ESS and get the MPII to charge the batteries and also to act as Passthrough? (Until the Comms come back again - this could be hours)

Many thanks again...

Trung

ess settings

3

2 |3000

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Alexandra ♦ commented · Sep 24, 2023 at 12:41 PM

Communication loss with what? The energy meter the service provider meter?

You can in the GX in ESS just manually set keep batteries charged, or set a scheduled charge window in the cheap tariff times.

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Trung Alexandra ♦ commented · Sep 24, 2023 at 06:43 PM

Hi there

I have lost Comms and as such, I am unable to get onto VRM to set charging schedules.

Is there a way I can manually charge the batteries? As a manual override to ESS for example.

Many thanks

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Alexandra ♦ Trung commented · Sep 25, 2023 at 06:26 PM

Yes.

Menu - Settings- ESS- Mode (keep batteries charged)

Scheduled charge...

Menu - settings - ESS - scheduled charge levels - schedule X .... enable

Set what days

start time

Next one people get wrong - duration of charge or

Stop on soc

There are 5 different schedules that can be set there.

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