Growatt spf5000 es - please advise on settings

[TheChamp]

not because it was still doing BULK?

Oh sorry it's actually the inverter recommended setting for the flooded, yes I think it is still on bulk.

 

[wingnut771]

Oh sorry it's actually the inverter recommended setting for the flooded, yes I think it is still on bulk.

Shouldn't the arrow be pointing the other way then?

 

[TheChamp]

Shouldn't the arrow be pointing the other way then?

That's exactly what I am now thinking, because it looks like bulk is over 56V, maybe something is not quite okay, could be the communication issue of misreading that is common on most Axpert inverters, I see even the Growatt has Voltronic vibes about it.

 

[TheChamp]

Can you check what the battery voltage is reading now @Hiedie?

 

[wingnut771]

That's exactly what I am now thinking, because it looks like bulk is over 56V, maybe something is not quite okay, could be the communication issue of misreading that is common on most Axpert inverters, I see even the Growatt has Voltronic vibes about it.

View attachment 1335580

I see the green charge light though?

 

[wingnut771]

That's exactly what I am now thinking, because it looks like bulk is over 56V, maybe something is not quite okay, could be the communication issue of misreading that is common on most Axpert inverters, I see even the Growatt has Voltronic vibes about it.

View attachment 1335580

I would make that 57.6V and FLOAT 55.2V

 

[TheChamp]

I see the green charge light though?

When it's stable charging is done, it flashes when charging, iirc.

 

[wingnut771]

When it's stable charging is done, it flashes when charging, iirc.

Maybe make FLOAT 54.4V.

 

[wingnut771]

I'm curious to know if by mixing up the order of the batteries if the performance changes. Move them all down one in negative direction and last battery goes at the back.

Use safety glasses and insulated tools.

 

[Hiedie]

Can you check what the battery voltage is reading now @Hiedie?

reading currently between 55-57v

 

[wingnut771]

reading currently between 55-57v

Multimeter should read a steady number. Also, what are the 12V readings of bat 1, 2, 3 and 4?

 

[Hiedie]

Multimeter should read a steady number. Also, what are the 12V readings of bat 1, 2, 3 and 4?

54.6 with multimeter

 

[wingnut771]

54.6 with multimeter

, and each battery?

 

[Hiedie]

, and each battery

, and each battery?

, and each battery?

14.3
13.4
14.0
14.0

 

[Hiedie]

, and each battery?

I see that arrow is continually moving between charging battery & suppling load

 

[wingnut771]

14.3
13.4
14.0
14.0

This is a problem, your batteries are out of balance, all voltages should be equal. You need to parallel them together for 24 hours to make one big 12V battery and charge with 12V charger.

 

[wingnut771]

I see that arrow is continually moving between charging battery & suppling load

@TheChamp ?

 

[TheChamp]

@TheChamp ?

That is a problem, battery shouldn't be supplying load at all, unless there's no AC. Some setting is not right, will have to go through the settings again and see which one it is.

The display just confuses me slightly because it says it is in bypass mode so I am not sure what the battery arrow towards the inverter signifies.

 

[TheChamp]

I have attached the manual, I don't see the screen that has the arrow facing towards the inverter. Display icons are from pg23.

 

[Hiedie]

This is a problem, your batteries are out of balance, all voltages should be equal. You need to parallel them together for 24 hours to make one big 12V battery and charge with 12V charger.

I will do this and revert afterwards