Yesterday (around 6pm) I made a firmware upgrade on my EP2000. Since then my backup power gets disabled every 3h and my house turns black. After that I can go to the EMS Controller and I can see that the “System Switch” is turned off. After turning it On again everything looks fine. No entries in the logbook.
This happened 3 times since then.
Hints:
Before doing the update I have seen that the ems controller shows a red home button once in a while and all values showing 0 when getting near the device and turning on the display. After one or two seconds everything started to work fine again. But there were no power interruptions.
I run on backup power only right now. Grid is turned off in the junction box. Also the external powermeter is off.
I read out the Battery percentage via bluetooth with home assistant every 5s or so.
some updates, I played around a bit on the weekend and found some more strange things.
The interruptions of the backup power seems to have an correlation to the demanded output power. In the night or when I’m not in the building, power gets turned of pretty often. When I’m in it runs normal. My idea: In the EP500Pro (I also own one) there is an option where you can automatically disable the AC output after some time when no load is detected. Could it be something like that? Normally the EP2000 does not have this function, I haven’t seen it in the manual.
“Custom Mode” is missing in the working modes menu. I only have the other 3. It’s missing in the app too.
Currently it looks like the system runs in the Backup mode all the time. It is set to self-consumption. When the grid gets connected I can see all the backup output power be drawn from the grid at the same time (I have one power meter for grid and one for the output) I tested this for about 15 minutes and it did not change this behavior. I also have seen that both power from grid and power from backup where not shown on the EMS Controller. It always showed 0W.
I recently received the external power meter to connect to the EMS controller. Communication seems to be fine. I connected the grid to the EP2000 and seemed that it started to test it with some currents on the grid. After some time I saw that the logbook showed me “B139” and some text. Today in the morning when I wanted to take a screenshot it was still in the history logbook for about 2 seconds and it disappeared. The manual does not have an entry for B139 but it was something about C1 is connected in the wrong direction. I checked the current flows on your power meter and my own and everything seems to be fine with the direction but I will check again in the power distribution soon.
When looking into the manual, the sensors show an arrow in the grid direction, is that correct? I connected them the other way around and thought it will detect the direction by itself. The manual of the ADL400N-CT shows the sensors to be connected in the direction of the load. I thought the load is the EP2000… The should be more obvious in the manual, maybe you want to add a hint to that? What should I do? In which direction should I install the sensors?
For the mean time, is it possible to revert the last software update somehow?
Thank you for your help. The EP2000 is still a great system and I’m aware that new products have some trouble in the first days.
@Barf
Hi Barfo,
I sincerely apologize for the inconvenience. I’ll send you a troubleshooting document via PM first—please check if it includes a solution for your issue.
Once the technical team returns on Monday, we’ll provide you with a detailed resolution.
Without an internet connection, the tech team can’t check the cause remotely. It’s best to check with us via cloud connection.
See if the firmware upgrade has turned on the parallel function?
Also, do you know which firmware was upgraded to cause the problem?
the device is hooked up to the cloud. As you won’t have access during a power loss I have to set the transfer switch to Grid and connected my Climate Unit and a light bulb to the backup power.
I also did a reset in Pro Mode and in the advanced settings. lets see…
I still wonder why I cannot setup the custom working mode. Is this going to be removed?
the system ran during the night without problems (it’s 6.20am here right now).
I can see the custom mode in the app but not on the EMS-Controller. Will this be fixed?
I’ll test the behavior in the evening (it was running like Backup mode even when set to self consumption)
Historical log entry at 6:35 shows no backup power interruption occurred. Currently, parameters and status appear normal. Please provide details of the operations performed during the power outage, error codes, and other relevant information.
I’ll share Mike’s WhatsApp with you via PM—could you add him to provide more detailed information? This way, he can offer faster support in the future as well.
Yesterday around 17:30 I restarted the hole system because I had to check something. Power Loss was around 3:30am in the night. I found out because the radio where i was sleeping was off. so I turned the System Switch on again on the EMS-Controller.
Same for the 6:35am incident. Nothing was done at the system at this time, it just turned off the AC Output. When looking at the EMS Controller you can see the System Switch being turned off. To get power back I simply turn it On again.
Whenever this happens, the system switch on the EMS Controller is off and there are no entries in the logbook. “System Switch Recovery” is on. I don’t know why, but the system switch seems to be getting turned off.
The entries you showing is the video are the ones for the missing grid power. That is all correct, the grid is disconnected. Mostly because of the problem in my other post from EP2000 constant Grid Consumption - #3 by Barf
But I did not have time to look into this by now, first the power loss has to be fixed somehow.
I mentioned before in this thread that before I made the update of the system I sometimes saw that the EMS-Controller showed the home button being red, when coming near the EMS-Controller all shown values where “0” even the battery %. After one or two second all values were present again and the home button went green/yellow again. No entries in the logbook regarding this. Maybe this helps.
