All things Sunsynk (Deye, Inge, etc...)

[KalMaverick]

As per the latest manual
View attachment 1579854

I wish the Deye 8kw has this option. It is an extremely irritating sound.

 

[RonSwanson]

I wish the Deye 8kw has this option. It is an extremely irritating sound.

It does, just upgrade your firmware.

 

[KalMaverick]

I've never done a firmware upgrade before, is it done through the Deye support people?

 

[RonSwanson]

I've never done a firmware upgrade before, is it done through the Deye support people?

I am not sure about the Deye procedures, rather get your installer to order it.

 

[Supercarfan]

I've never done a firmware upgrade before, is it done through the Deye support people?

I think you can request it by mailing Deye’s support mail with your logger’s serial number, but as Ron said, easiest is to ask your installer to request it.

Just a heads up, when it happens (without much warning, in my case about 7 hours after speaking to the installer) you’ll have some surprise load shedding while the update installs.

Also, on the latest firmware the setting is on the “Advanced Settings” page, not under Battery settings as per some versions of the Deye manual. And when you enable it your AC will go off momentarily again.

 

[RonSwanson]

I think you can request it by mailing Deye’s support mail with your logger’s serial number, but as Ron said, easiest is to ask your installer to request it.

The installer should be able to request it, but timing is key and Deye support needs to ensure that loads are minimal during this time, otherwise it's possible to have a W@P experience, resulting in a broken inverter for 6 weeks. If you let him do it, then any breakages are for him to explain and fix.

And when you enable it your AC will go off momentarily again.

And the alarm will sound for at least one minute while you sit in the darkness.

 

[F1 Fan]

Out of interest, my solar board has 2 x40amp surge arrestors and 4 x20amp DC fuses. Do you have similiar?
12 x 545w

 

[lkpat]

I have 2x 5.5kw sunsynk inverters in parallel and 2x FW Lite 10/8 batteries (200ah each) in parallel.

The batteries are connected on CAN bus and comms seems good.

What's not obvious to me is how to configure the Sunsynk inverter with 2x 200ah batteries connected. Right now if I go to the battery setup screen I have:

Batt type: Lithium
Activate: off
Batt capacity: 200ah
Charge amps: 50
Discharge amps: 115
CAN bus
Protocol: 0
BMS Err stop: on

My understanding is that with CAN connected it will configure these settings itself, but the battery capacity is confusing as 200ah is 1 battery when I have 2. Max discharge and charge amps relates to the inverter I imagine since I have two, master and slave can both supply and consume those numbers so I'm not fiddling there I assume. What about the battery capacity though?

It's been working fine like this since install a couple of months ago but I like to understand things....

 

[Mzezman]

I have 2x 5.5kw sunsynk inverters in parallel and 2x FW Lite 10/8 batteries (200ah each) in parallel.

The batteries are connected on CAN bus and comms seems good.

What's not obvious to me is how to configure the Sunsynk inverter with 2x 200ah batteries connected. Right now if I go to the battery setup screen I have:

Batt type: Lithium
Activate: off
Batt capacity: 200ah
Charge amps: 50
Discharge amps: 115
CAN bus
Protocol: 0
BMS Err stop: on

My understanding is that with CAN connected it will configure these settings itself, but the battery capacity is confusing as 200ah is 1 battery when I have 2. Max discharge and charge amps relates to the inverter I imagine since I have two, master and slave can both supply and consume those numbers so I'm not fiddling there I assume. What about the battery capacity though?

It's been working fine like this since install a couple of months ago but I like to understand things....

Your total capacity is 400ah so that’s what you should set. I am assuming the batteries are connected to the inverters via a common bus bar or such device, I.e. it’s not 1 inverter connected to 1 battery but rather both inverters connected to both batteries

 

[lkpat]

Your total capacity is 400ah so that’s what you should set. I am assuming the batteries are connected to the inverters via a common bus bar or such device, I.e. it’s not 1 inverter connected to 1 battery but rather both inverters connected to both batteries

Correct on the busbar. Curious as to what it is used for.

Another thing I'm curious about... I see a few articles showing a lot of battery info on one or other screen. I can't seem to find it on mine. My LiBMS screen has scant info by comparison:



Some others I've seen:

 

[KalMaverick]

Correct on the busbar. Curious as to what it is used for.

Another thing I'm curious about... I see a few articles showing a lot of battery info on one or other screen. I can't seem to find it on mine. My LiBMS screen has scant info by comparison:

View attachment 1581448

Some others I've seen:

View attachment 1581454

Shouldn't charge/discharge current limit be set to 240A? Or does it not matter if the battery exceeds the inverter limits?

 

[DrJohnZoidberg]

On the subject of batteries and charging, I have heard a few people mention you have to balance the solar charge current and the grid (or generator) charge current to make sure the sum doesn't exceed the maximum charge current of the battery.... so if my battery has a max charge rate of 100A, solar and grid/Gen charge can't combined be more than 100A. Makes sense to me but I wasn't aware that you had to balance it yourself. I assumed a max charge rate set at battery level would apply to all inputs.

How do these settings relate to each other?
View attachment 1581458

View attachment 1581460

p.s. not my system, just pics from the web.

I don't know but I would assume the max amps under the battery settings would be the maximum regardless of whether it's from grid or PV.

 

[Grubscrew]

Correct on the busbar. Curious as to what it is used for.

Another thing I'm curious about... I see a few articles showing a lot of battery info on one or other screen. I can't seem to find it on mine. My LiBMS screen has scant info by comparison:

View attachment 1581448

Some others I've seen:

View attachment 1581454

hmmm mine looks like yours, but I don't have SOH?

 

[KalMaverick]

On the subject of batteries and charging, I have heard a few people mention you have to balance the solar charge current and the grid (or generator) charge current to make sure the sum doesn't exceed the maximum charge current of the battery.... so if my battery has a max charge rate of 100A, solar and grid/Gen charge can't combined be more than 100A. Makes sense to me but I wasn't aware that you had to balance it yourself. I assumed a max charge rate set at battery level would apply to all inputs.

How do these settings relate to each other?
View attachment 1581458

View attachment 1581460

p.s. not my system, just pics from the web.

On Solar Assistant the 1st field is called Max charge current the 2nd is Max grid charge current

I've tested it now and it looks to do exactly that. 20A max charge and 90A max grid limited the charge to my batteries to 20A from Solar, nothing came from Grid.

 

[Mike Hoxbig]

On the subject of batteries and charging, I have heard a few people mention you have to balance the solar charge current and the grid (or generator) charge current to make sure the sum doesn't exceed the maximum charge current of the battery.... so if my battery has a max charge rate of 100A, solar and grid/Gen charge can't combined be more than 100A. Makes sense to me but I wasn't aware that you had to balance it yourself. I assumed a max charge rate set at battery level would apply to all inputs.

How do these settings relate to each other?
View attachment 1581458

View attachment 1581460

p.s. not my system, just pics from the web.

First screen is from all sources, but will prioritise panels over grid. Second screen is from grid. The documentation isn't really clear on this. But the first screen basically deals with the maximum amount of current you can push or draw from your entire bank.

If your bank is 200Ah and your batteries are 0.5C then you can take the charge up to 100A on the first screen.

It should never really exceed 100A across both sources because that's what you have it set to on the first screen. It prioritises DC sources first, grid would be used to power the load if you have grid charge ticked and you don't have enough PV to charge the battery and power the load. If there's not enough PV then grid supplements up to the charge A on the first screen...

 

[Fcon_Vpro]

I have 2x 5.5kw sunsynk inverters in parallel and 2x FW Lite 10/8 batteries (200ah each) in parallel.

The batteries are connected on CAN bus and comms seems good.

What's not obvious to me is how to configure the Sunsynk inverter with 2x 200ah batteries connected. Right now if I go to the battery setup screen I have:

Batt type: Lithium
Activate: off
Batt capacity: 200ah
Charge amps: 50
Discharge amps: 115
CAN bus
Protocol: 0
BMS Err stop: on

My understanding is that with CAN connected it will configure these settings itself, but the battery capacity is confusing as 200ah is 1 battery when I have 2. Max discharge and charge amps relates to the inverter I imagine since I have two, master and slave can both supply and consume those numbers so I'm not fiddling there I assume. What about the battery capacity though?

It's been working fine like this since install a couple of months ago but I like to understand things....

CAN doesn't automatically set everything.
With some BMS you still need to manually set some settings.
The bms should tell your inverter what is the max it can charge, draw and what the soc is at any given time.
The max charge and draw can overridden if you tell the inverter to use lower settings than what the bms says the max are. Especially if you potentially used thinner cables, because you intentionally wanted to use less current, you wouldn't want your bms and inverter doing whatever they want whenever they want if they don't know every single variable of the install. It's a hyperbolic example, but it's not just plug and play.

Correct on the busbar. Curious as to what it is used for.

Another thing I'm curious about... I see a few articles showing a lot of battery info on one or other screen. I can't seem to find it on mine. My LiBMS screen has scant info by comparison:

View attachment 1581448

Some others I've seen:

View attachment 1581454

Not all bms share all that info.
Not all bms are the same.

 

[Fcon_Vpro]

On the subject of batteries and charging, I have heard a few people mention you have to balance the solar charge current and the grid (or generator) charge current to make sure the sum doesn't exceed the maximum charge current of the battery.... so if my battery has a max charge rate of 100A, solar and grid/Gen charge can't combined be more than 100A. Makes sense to me but I wasn't aware that you had to balance it yourself. I assumed a max charge rate set at battery level would apply to all inputs.

How do these settings relate to each other?
View attachment 1581458

View attachment 1581460

p.s. not my system, just pics from the web.

Weird question considering in the past you and I argued about what had more control, battery or inverter.
You argued that your freedomwon was smarter and controlled the inverter, so why would you think you need to balance out those amounts if the battery will tell the inverter what to do.

Sorry if I'm coming off aggressive, just trying to make sense of your previous statements and current questions.

 

[F1 Fan]

First screen is from all sources, but will prioritise panels over grid. Second screen is from grid. The documentation isn't really clear on this. But the first screen basically deals with the maximum amount of current you can push or draw from your entire bank.

If your bank is 200Ah and your batteries are 0.5C then you can take the charge up to 100A on the first screen.

It should never really exceed 100A across both sources because that's what you have it set to on the first screen. It prioritises DC sources first, grid would be used to power the load if you have grid charge ticked and you don't have enough PV to charge the battery and power the load. If there's not enough PV then grid supplements up to the charge A on the first screen...

Is there any logic around using lower charge and discharge amp rates to prolong the battery? Or should it not matter given that the battery is for example 1c and is rated to handle that specific load?

 

[Speedster]

Is there any logic around using lower charge and discharge amp rates to prolong the battery? Or should it not matter given that the battery is for example 1c and is rated to handle that specific load?

Lower will always lead to greater longevity, but you need to decide what you want from your batteries. If you're not charging from grid, chances are you'll very rarely be at 1C.

 

[Pho3nix]

Deye app shows when load shedding ends/starts via notifications now. Not sure if that was there before?