Need help with EG4 18kpv - Not discharging batteries

[Zapper77]

I am having the same issue. It will only discharge if i force discharge or charge if I set a time 00:00 - 23:59 for AC charge. Why are you the only one to see that setting? Why we don't have admin access to our own devices?

Can you share your settings .

 

[dalemeyer22]

Are your CTs installed?

yes

 

[Markus_EG4]

yes

PM me your station name so i can help you out

 

[dalemeyer22]

Are your CTs installed?

Yes CTs are installed on the "Lines" in the 18kpv cabinet? Even though i have the arrows pointing to the inverter, i still had to set reverse to get any data to show.

Setup:
main panel with 60 amp feeding the EG4 18kpv inverter. Main panel is 200A and 200A buss bar (cannot backfeed, unless you know a way without overloading the buss). Inverter has 3650W of solar, 1 EG4 PowerPro battery (additional on the way) and grid. Output goes to 125A "critical load" panel.

Offgrid output - On
CT direction reversed - On
Seamless switch - On
Charge Last - Off
RSD disable - On
PV Arc - On
Zero export - On

Backup EPS enabled
Off-grid mode disabled

AC Charge:
AC charge enable
stop AC charge SOC 100%

last charge disable
battery priority disable

Discharge:
on-grid cut-off SOC 10%
off-grid cut-off SOC 0%

Forced discharge enable
stop discharge SOC 10%

I have to disable Forced Discharge and enable AC Charge and set a time of 00:00 - 23:59 and it will start changing
I then have to disable AC Charge and enable Forced Charge and set a time to 00:00 - 23:59 and it will start discharging.

If I leave it on AC charge, it will never discharge and use solar or grid instead. Same for discharge. if i leave that on, it will stop at 10% and AC charge will never start charging from solar or grid.

Do I have the CTs in the right place? Manual shows them on the feed from the main panel. Do i need to have them on the main lugs of the main panel? Why would the flow have to be reversed?

 

[Zapper77]

Yes CTs are installed on the "Lines" in the 18kpv cabinet? Even though i have the arrows pointing to the inverter, i still had to set reverse to get any data to show.

Setup:
main panel with 60 amp feeding the EG4 18kpv inverter. Main panel is 200A and 200A buss bar (cannot backfeed, unless you know a way without overloading the buss). Inverter has 3650W of solar, 1 EG4 PowerPro battery (additional on the way) and grid. Output goes to 125A "critical load" panel.

Offgrid output - On
CT direction reversed - On
Seamless switch - On
Charge Last - Off
RSD disable - On
PV Arc - On
Zero export - On

Backup EPS enabled
Off-grid mode disabled

AC Charge:
AC charge enable
stop AC charge SOC 100%

last charge disable
battery priority disable

Discharge:
on-grid cut-off SOC 10%
off-grid cut-off SOC 0%

Forced discharge enable
stop discharge SOC 10%

I have to disable Forced Discharge and enable AC Charge and set a time of 00:00 - 23:59 and it will start changing
I then have to disable AC Charge and enable Forced Charge and set a time to 00:00 - 23:59 and it will start discharging.

If I leave it on AC charge, it will never discharge and use solar or grid instead. Same for discharge. if i leave that on, it will stop at 10% and AC charge will never start charging from solar or grid.

Do I have the CTs in the right place? Manual shows them on the feed from the main panel. Do i need to have them on the main lugs of the main panel? Why would the flow have to be reversed?

Reverse maybe your issue.
After you connect a grid connection it has a 5 minute delay before the inverter switches back to battery.

 

[dalemeyer22]

Reverse maybe your issue.
After you connect a grid connection it has a 5 minute delay before the inverter switches back to battery.

So just turn that setting off and see?

 

[Zapper77]

So just turn that setting off and see?

Yes

 

[dalemeyer22]

Yes

I'll give it a shot and let you know. Thanks!

 

[dalemeyer22]

Changed that is it immediately clicked a relay and shows the flow going to the grid. That is what I got the first time. That right? Or will that change? Doesn't seem right.

 

[Zapper77]

Changed that is it immediately clicked a relay and shows the flow going to the grid. That is what I got the first time. That right? Or will that change? Doesn't seem right.

That's not correct. Can you double check your L1 and L2

 

[Zapper77]

Forced discharge enable
stop discharge SOC 10%

Disable this

You are telling the inverter to force battery discharge until SOC reaches 10%.

 

[dalemeyer22]

Meaning what? L1 and L2 are run from the main panel to the inverter. Do the CTs need to be on the main panel lugs instead of the inverter cabinet?

 

[dalemeyer22]

Forced discharge enable
stop discharge SOC 10%

Disable this

You are telling the inverter to force battery discharge until SOC reaches 10%.

When i do that, it never discharges. I have it set like that as you asked.

 

[Zapper77]

Meaning what? L1 and L2 are run from the main panel to the inverter. Do the CTs need to be on the main panel lugs instead of the inverter cabinet?

Depends. Are you running a critical load panel?

Are you powering your main panel through the grid connection? (Upstream)

 

[dalemeyer22]

Depends. Are you running a critical load panel?

Are you powering you main panel through the grid connection? (Upstream)

Yes. if you look at the the PDF is shows the setup. Grid to main panel to inverter - inverter to critical load. Main panel is powered from grid but not from inverter.

 

[Zapper77]

PDF doesn't show where your CTs are installed. (I assume in the 18Kpv on the right side grid connection, like delow?)

 

[dalemeyer22]

PDF doesn't show where your CTs are installed. (I assume in the 18Kpv on the right side grid connection, like delow?)

View attachment 179629

Aaaah, that was it. I didn't realize each CT had a different grid line they needed to be on. I swapped them and "click" the flow reversed. Thanks!!

Still powering off grid but I think you said it takes about 5 minutes to switch to battery?

 

[Zapper77]

Aaaah, that was it. I didn't realize each CT had a different grid line they needed to be on. I swapped them and "click" the flow reversed. Thanks!!

Still powering off grid but I think you said it takes about 5 minutes to switch to battery?

Correct 5 minutes

 

[dalemeyer22]

Correct 5 minutes

Yup! Discharging now. Nice, thanks!

And it should automatically start charging when it reaches 10% SOC?

 

[Zapper77]

Yup! Discharging now. Nice, thanks!

And it should automatically start charging when it reaches 10% SOC?

What percentage do you have Start AC set at?