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

[Katelknaap]

Interesting and applaud worthy initiative from Herholdts. Seems Sunsynk SA is dropping the ball on support iro inverter failures and repairs. Some horror stories online iro waiting times on repairs.

Facebook

www.facebook.com

"So here is some great news for all our customers. If you have bought a Sunsynk inverter from Herholdt's Group and it has been at the repair centre for longer than 2 weeks, you can email the rma booking form with date as well as serial nr of that particular inverter to [email protected] and we will replace that inverter with a brand new unit.

Please note that this will be done with incoming stock that is landing during March. We are consolidating the replacements from our Bloemfontein branch and will ship it from here free of charge. Please note that the claim could take up to a week to reach you and although we understand that a total of 3 weeks waiting was not good enough at least you will receive a new inverter and have your customer up and running asap

Only installers can send in the claims and the replacements will be sent to installers only. This is to make sure that DIY replacement does not happen.

If you are an end user please ask your installer to submit on your behalf so that we can provide the replacements as quick as possible.

Myself and Andre Lindenberg will monitor the email address to make sure nothing slips through the cracks

Replacement will have to be installed by a qualified person otherwise your new inverter warranty will be void. We would require post install photos from the installer

I know this is not ideal but it will bring relief to the repair centre and we would be able to keep all the sunsynk supporters happy

Once your inverter has been repaired it will come back to us to go into a rotational pool for loan units to all our clients when they need repairs done so that their clients don’t sit in the dark

We would like to thank you for your continuous support as we always strive to provide the best service possible

Kind regards

The Herholdt’s Team"

 

[thehuman]

More good news


Good news day 2

From the 1st of April 2023, and this is no april fools joke, as an installer you will be able to log an RMA for any sunsynk product with Herholdt's Group directly on behalf of your customer. We will arrange for collection of the product and take it to our first operational service center in our BFN branch where we will assess and “triage” the fault. We will then be able to help with “non failure” issues and support.

If the unit is determined to be faulty our team will send a loan unit to you for your client at no cost and send the faulty inverter to sunsynk for repair. We wil handle all and the follow up needed with the repair center and provide you with updates to make sure it happens as speedy as possible.

Once the inverter has had the faulty board replaced or entire inverter replacement was done by Sunsynk we will collect it and send it back to you. Our team will then arrange a date to collect the loan unit.

From 1 May 2023 this service will be available in 3 other branches and from 1 June 2023 in all 8 branches across SA. So as an installer you will be able to bring in a faulty inverter to any branch and have “triage” done within 24hrs maximum. Loan units will be available in all branches

For the end users that don’t have an installer, we will cover 1 hour labor if you use any of our trusted installers on our website to fit the replacement inverter. This way if your installation is up to code the replacement should not take longer than 1 hour and thus will not cost you a cent to be legal and compliant.

This will be the next step towards a better customer service experience for all sunsynk customers.

More details will follow

Kind regards

HG

 

[Katelknaap]

More good news


Good news day 2

From the 1st of April 2023, and this is no april fools joke, as an installer you will be able to log an RMA for any sunsynk product with Herholdt's Group directly on behalf of your customer. We will arrange for collection of the product and take it to our first operational service center in our BFN branch where we will assess and “triage” the fault. We will then be able to help with “non failure” issues and support.

If the unit is determined to be faulty our team will send a loan unit to you for your client at no cost and send the faulty inverter to sunsynk for repair. We wil handle all and the follow up needed with the repair center and provide you with updates to make sure it happens as speedy as possible.

Once the inverter has had the faulty board replaced or entire inverter replacement was done by Sunsynk we will collect it and send it back to you. Our team will then arrange a date to collect the loan unit.

From 1 May 2023 this service will be available in 3 other branches and from 1 June 2023 in all 8 branches across SA. So as an installer you will be able to bring in a faulty inverter to any branch and have “triage” done within 24hrs maximum. Loan units will be available in all branches

For the end users that don’t have an installer, we will cover 1 hour labor if you use any of our trusted installers on our website to fit the replacement inverter. This way if your installation is up to code the replacement should not take longer than 1 hour and thus will not cost you a cent to be legal and compliant.

This will be the next step towards a better customer service experience for all sunsynk customers.

More details will follow

Kind regards

HG

Good to see that some suppliers are starting to up their game.

 

[newby_investor]

I was poking around in the manual for the Deye inverters available on solar.co.za and they have 2 MPPT inputs.
With regards to the number of strings, the manual said that the 5 kVA inverter can have "1+1" (which is 2 last time I checked), makes sense, 1 string per input.

But the 8kVA unit apparently can accept 2+2. How does that work? Are two strings connected in parallel per MPPT input? I guess this would increase the current but not the voltage? And I'd imagine that the two strings would need to be as closely matched as possible.

 

[Speedster]

I was poking around in the manual for the Deye inverters available on solar.co.za and they have 2 MPPT inputs.
With regards to the number of strings, the manual said that the 5 kVA inverter can have "1+1" (which is 2 last time I checked), makes sense, 1 string per input.

But the 8kVA unit apparently can accept 2+2. How does that work? Are two strings connected in parallel per MPPT input? I guess this would increase the current but not the voltage? And I'd imagine that the two strings would need to be as closely matched as possible.

The inverter has two connection ports per string, but the connections simply parallel the strings together.

 

[B-1]

I had no idea but the BMS firmware for the Freedom won gets configured for different Inverters as per the install manual. Does this happen with other batteries BMS? I.e. Different firmware config for Sunsynk vs Axpert King etc.

You usually have to configure the communication protocol if you are using CAN or R485 so they can understand each other. Usually thats on the battery dipswitch.

You can configure the inverter without comms cable to the battery but its usually better if you have the communication between the 2. It may also be stipulated in the battery warantee.

 

[Fcon_Vpro]

I had a chat with the Freedom Won sales guy yesterday. I have an appointment with their support team in the next day or so for a firmware check.

I had no idea but the BMS firmware for the Freedom won gets configured for different Inverters as per the install manual. Does this happen with other batteries BMS? I.e. Different firmware config for Sunsynk vs Axpert King etc.

Apparently the FW Lite has some fancy American BMS. Anyone know which one it is?

You usually have to configure the communication protocol if you are using CAN or R485 so they can understand each other. Usually thats on the battery dipswitch.

You can configure the inverter without comms cable to the battery but its usually better if you have the communication between the 2. It may also be stipulated in the battery warantee.

There is also the protocol setting on Deye/Sunsynk battery section settings that helps the inverter understand how to communicate with the battery. On less fancy inverters with less support, having a BMS that can be updated to support your inverter would help but not necessary on the Sunsynks. I dont see Freedom WON in the manual so maybe thats why they recommending the firmware upgrade even though it most likely works with one of the 20 odd available protocols. Heres just the first few listed in the manual as examples:

 

[B-1]

What I'm referring to is exclusively CAN. The BMS is programmed to behave differently for different inverters which is why a good BMS is very important and often a part of the equation that is left out when picking a battery because it's abstracted a layer.

I don't believe the BMS will behave different its more about the protocol used on the CAN bus and how the inverter and battery communicates.

The only reason I can think of for different firmware is that there are too many inverters and protocols for the dip switch so they group supported protocols into firmware releases.

 

[TheJman]

View attachment 1489345

Goodies arrived from Mantech.
One temp controller with 12v relay and some fans. Just waiting for the 3D printed brackets for two 5kw inverters so I can hook it all up. I'll connect the temperature sensor to the master inverter and figure out temperature ranges then set and let the fans run on thermostat.

Have you set this up yet?

 

[Fcon_Vpro]

Thing is... The BMS should be savvy to the cell requirements and it shouldn't be relying on the inverter to dictate parameters... I prefer knowing my BMS knows about my inverter than the other way around.

For FW batteries, the Sunsynk is just configured for lithium and CAN / BMS does the rest.

Its in the manual pageI posted. The BMS controls the inverter + charge controller and needs a profile to match the inverter make and model.

I think you are reading too much into the word control from the BMS perspective.
It's more that the BMS supplies acceptable parameters that the inverter must work within for charge and discharge, the temperature and soc is just informational for the inverter.

Inverters don't dictate cell parameters unless you are using voltages. Even then they just push current/voltage through based on parameters and expect the cells to balance themselves or the bms to do its job.
You might prefer your BMS to know about your inverter, but only your inverter knows what your loads are, pv availability, etc are, so your battery can only decide parameters and the inverter must work within that.

It's great that you are getting a firmware upgrade but I'm sure it's more around handling cell balancing better, rather than being something specific to working with sunsynk.
Maybe it might provide individual cell status under the bms screen if it isn't doing that already.

As I said, the individual firmwares are more focused on being able to communicate with inverters that have support for a limited range of protocols for communication.
The BMS profile you mention is the equivalent of the battery protocol I mentioned.

Not fighting with you, just lowering your expectations of what the upgraded firmware will do for you.

 

[FlashSA]

Update lag again on the App and web. Just me?

 

[DawieZA]

Update lag again on the App and web. Just me?

Same here. Cannot wait for my Orange PI to arrive. No need to deal with this then.

 

[DrJohnZoidberg]

Same here. Cannot wait for my Orange PI to arrive. No need to deal with this then.

Same. I've got my cable already just waiting for the Pi.

 

[Mike Hoxbig]

Is orange pi preferred over raspberry Pi?

Doesn't make a difference. It's what you can get at the moment...

 

[Speedster]

People buying all the pi iterations and not giving the good old NUC enough love.

 

[Speedster]

Celeron NUC is good value. Is love an i5 or i7 but those prices...

Yup. I'm pretty sure my Celeron NUC is more powerful, and was quite a bit cheaper, than a Pi4. Probably uses less power too.

 

[Speedster]

Would love to hack one of these for the price...

Search: 250 results found for "Huawei"

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Sweet device.

 

[newby_investor]

Would love to hack one of these for the price...

Search: 250 results found for "Huawei"

A First Technology Group company, trusted by South African's for over 40 years. First Shop is our online computer store for businesses and consumers. Buy laptops for sale, printers, tablets, antivirus, software and so much more. Every Day Low Price Match Guarantee. Online chat available or call...

www.firstshop.co.za

What's holding you back?

 

[Mzezman]

Sweet device.

That's not a bad price at all... Wonder how hack friendly it is

 

[newby_investor]

It's Huawei. I'm not convinced it's going to be well supported on the open source front.

This is a fair possibility.