Growatt es5000 beeps

[thesummithaven]

Hi all,
Is it normalfor the growatt es5000 to beep when batteries are fully charged hen each time it starts charging again?
Cheers

 

[timselectric]

Hi all,
Is it normalfor the growatt es5000 to beep when batteries are fully charged hen each time it starts charging again?
Cheers

No
What error code is it showing?

 

[thesummithaven]

No error code

 

[timselectric]

Is it just a single beep, or several beeps in succession?

 

[thesummithaven]

I believe its about 3 then a space then repeats stops because some power has been used and when 100% charged starts again till the sun goes down.
I know you can silence it but its a concern even though it doesn't seem to cause any problems.
PS its done this from installation.

 

[timselectric]

It sounds like an error.
I'm guessing that the DC bus voltage is getting too high.
I don't know if you have a way to check it.
It's not viewable on the screen. I can see it on Solar Assistant.
When it exceeds 480v , it's not happy.

 

[thesummithaven]

thanks, I have panels each 33.5volts = 268 the growatt says over 400v the victron busbar is rated at 1000v now the inverter just started again as the batteries are full.
I disconnected the solar string and the beeping has stopped, I do have 550w of solar going through a separate MPPT direct into the bus bar after the growatt as they are different voltage and wattage to the main string.
Cheers

 

[timselectric]

thanks, I have panels each 33.5volts = 268 the growatt says over 400v the victron busbar is rated at 1000v now the inverter just started again as the batteries are full.
I disconnected the solar string and the beeping has stopped, I do have 550w of solar going through a separate MPPT direct into the bus bar after the growatt as they are different voltage and wattage to the main string.
Cheers

I have noticed that when battery is at around 56v or higher. And PV voltage climbs above 315v. And loads are below 1kw. It's like a perfect combination for the DC bus voltage to go above 480v. Which causes an error #08 , "DC bus voltage to high".
It's even more likely to happen if a BMS shuts off charging.
It usually only takes a few seconds for everything to calm down. But if it remains in error for very long, the inverter will shutdown.