Deye 16K and SunSynk, Neutral/Earth(Ground) Bonding in "Signal Island Mode" HOWTO

[misterbubbacat]

This HOWTO was originally posted in this forum.

******* Deye 16K & SunSynk ~ Neutral/Earth(Ground) Bonding in "Signal Island Mode" HOWTO *********

The documentation from Deye and SunSynk has done a pretty bad job in describing how to perform a Neutral to Earth/Ground bonding when the 16K Hybrid Inverter is operating in "Island Mode" (When GRID is disconnected) and needs N/G bonding.

Keith from SunSyn has posted a YouTube video that describe on how to wire up a N/G bonding, without a schematic and is difficult to implement.

It's said Picture means a thousand words. So here we are, below is a picture of how to wire up a Neutral/Ground bond using a standard "Normally Open" contactor.

1. The example uses a 16 bucks din-rail "Normally Open" type Contactor available on Amazon.
2. Connector 7,8 a dry contact for Generator signal control line, will be used as the control signal for "Island Mode"
3. In the "Advanced Function" menu, CHECK the "Signal Island Mode".
4. When the #3 is enabled, the port 7,8 will be enabled to ON state when the GRID is UP. It will be OFF when GRID is DOWN.
5. You can use a multi-meter set to TONE TEST to confirm a continuality tone when GRID is up. NO tone when GRID is down.
6. In the diagram below, I will be using the EU standard wire color code. L=Brown N=Blue G=Green
7. A "Normally Open" type Contactor is used in this example.
8. Wire 7 to A2 (Neutral return)
9. Wire 8 to Neutral on the LOAD L,N input.
10. Wire N to R2 of the contactor
11. Wire G to R1 of the contactor
12. Wire L to A1 of the contactor.

Here's how this schematic works. When the GRID is connected and the "Signal Island Mode" is enabled in the Advanced Function menu. The port 7,8 signal will power the Contactor via A1 (Live) and A2 (Neutral return), which in turn will keep the R1 and R2 of the contactor "OPEN" and disabled N/G bonding. When GRID power is lost, power to the A1 & A2 will be lost and become "OPEN". The coil of the contactor will be CLOSED and R1 & R2 will be energized and bond the Neutral and Ground wire. When GRID Power is restored, which will take a minute. A1 & A2 will be ON once again and will disable R1 & R2; the N/G bond will be disconnected.

Hopefully, this will help the DIYer in the 230V world. In the US, the Neutral to Ground bonding is always enable per NEC code at the main entrance panel and don't have to worry about this. ?

 

[eethon]

This was invaluable to me setting up mine when we were discussing it on your thread. Deye don’t mention the lack of 230v signal outputs on the board on my model (the sun-16k) so I had to do it this way.

Awesome of you to take the time to do this guide for others!

 

[misterbubbacat]

Glad to hear this helps you in your setup. That's what this forum is for the DIYer sharing experiences and helping each other. ?

 

[Lactophobe]

Can you verify if this is correct?
Grid connects to Grid (obviously) and loads which not essential - if the grid is on, they get grid power - if the grid is off, they get nothing
Load is used to power essential loads (fridges, freezers, lights etc) - if the grid is on, they get grid power - if the grid is off they get inverter power

How do you set up the services panel to make this happen?

 

[eethon]

Can you verify if this is correct?
Grid connects to Grid (obviously) and loads which not essential - if the grid is on, they get grid power - if the grid is off, they get nothing
Load is used to power essential loads (fridges, freezers, lights etc) - if the grid is on, they get grid power - if the grid is off they get inverter power

How do you set up the services panel to make this happen?

could you expand a bit on what your asking, I'm struggling to make sense of what exactly your trying to do?

 

[houseofancients]

This HOWTO was originally posted in this forum.

******* Deye 16K & SunSynk ~ Neutral/Earth(Ground) Bonding in "Signal Island Mode" HOWTO *********

The documentation from Deye and SunSynk has done a pretty bad job in describing how to perform a Neutral to Earth/Ground bonding when the 16K Hybrid Inverter is operating in "Island Mode" (When GRID is disconnected) and needs N/G bonding.

Keith from SunSyn has posted a YouTube video that describe on how to wire up a N/G bonding, without a schematic and is difficult to implement.

It's said Picture means a thousand words. So here we are, below is a picture of how to wire up a Neutral/Ground bond using a standard "Normally Open" contactor.

1. The example uses a 16 bucks din-rail "Normally Open" type Contactor available on Amazon.
2. Connector 7,8 a dry contact for Generator signal control line, will be used as the control signal for "Island Mode"
3. In the "Advanced Function" menu, CHECK the "Signal Island Mode".
4. When the #3 is enabled, the port 7,8 will be enabled to ON state when the GRID is UP. It will be OFF when GRID is DOWN.
5. You can use a multi-meter set to TONE TEST to confirm a continuality tone when GRID is up. NO tone when GRID is down.
6. In the diagram below, I will be using the EU standard wire color code. L=Brown N=Blue G=Green
7. A "Normally Open" type Contactor is used in this example.
8. Wire 7 to A2 (Neutral return)
9. Wire 8 to Neutral on the LOAD L,N input.
10. Wire N to R2 of the contactor
11. Wire G to R1 of the contactor
12. Wire L to A1 of the contactor.

Here's how this schematic works. When the GRID is connected and the "Signal Island Mode" is enabled in the Advanced Function menu. The port 7,8 signal will power the Contactor via A1 (Live) and A2 (Neutral return), which in turn will keep the R1 and R2 of the contactor "OPEN" and disabled N/G bonding. When GRID power is lost, power to the A1 & A2 will be lost and become "OPEN". The coil of the contactor will be CLOSED and R1 & R2 will be energized and bond the Neutral and Ground wire. When GRID Power is restored, which will take a minute. A1 & A2 will be ON once again and will disable R1 & R2; the N/G bond will be disconnected.

Hopefully, this will help the DIYer in the 230V world. In the US, the Neutral to Ground bonding is always enable per NEC code at the main entrance panel and don't have to worry about this. ?

just as a warning , Dutch code also states that there needs to be a permanent bond at point of power entrance to a dwelling/building

 

[eethon]

just as a warning , Dutch code also states that there needs to be a permanent bond at point of power entrance to a dwelling/building

That would be the grid bond? This guide is only for when the grid is down, the inverter ATS disconnects the grid and in so doing the neutral bond. So you have to make a new one. That's as I understand it anyway. This is only for when the Grid Neutral bond has been severed.

 

[houseofancients]

That would be the grid bond? This guide is only for when the grid is down, the inverter ATS disconnects the grid and in so doing the neutral bond. So you have to make a new one. That's as I understand it anyway. This is only for when the Grid Neutral bond has been severed.

contacters are prohibited in dutch code, so a permanent bond is required for offgrid functioning

 

[eethon]

contacters are prohibited in dutch code, so a permanent bond is required for offgrid functioning

Is your electrical system like the USA where the bonding is done in your main entrance panel?

 

[houseofancients]

Is your electrical system like the USA where the bonding is done in your main entrance panel?

yes, same goes for South Africa btw

 

[eethon]

yes, same goes for South Africa btw

then you don't have to worry about earth neutral bonding like we do. Ours (UK) is bonded the electricity suppliers side so when we go into islanding mode we have to E/N bond and we have to make one using this method.

 

[eethon]

yes, same goes for South Africa btw

sorry I always feel the need to qualify my statement with eh fact I am very much a DIYer and very much not an expert so everything is as best as I understand it.