I have a small setup here with 9 solar panels ni 3S3P with a BlueSolar MPPT and a Multiplus II GX all of this gets connected to my house direct power and is configured with ESS as the assistant.
I have everything connected properly with the Grid feeding power to my house, my solar panels feeding my battery (one Pylontech US3000) but I still have a problem since my battery does not feed my AC inputs. It seems that the ESS Relay test remains in a pending state which seems to be the problem but I cannot find anywhere what would trigger this test to complete.
Is it related to the charge settings or to the inverter settings ?
I have configured those according the Pylontech/Victron settings.
I also have a small problem with the carge of the battery which remains slightly under the absorption setting for my multiplus as I have it set to 52.4 V while it stays at 51.15 V.
Does the ESS relay rely on that figure and remains in a pending state since this figure does not reach the charging limit for absorption ?
Sorry about my multiple questions I am slightly dumbfounded…
How is your system connected … Is it an old house? Tell us a bit about your electrical system … The Multi may not want to connect because a measurement cannot be carried out.
Is your network (in France) that bad?
You can send a view of VE-Configure …
Here it shows the Grid a little bit
Otherwise, install the ESS Assistant again and restart … sometimes the system chokes
Yep, this is in the South of France and the house is rather old. The electricity was redone quite a few years ago though (like quite a few years…). I’ve just spent 20 years in New Zealand hence my english and returning now.
Everything from the multiplus and from the electricity box (Linky) has been redone a few days ago though so I’m not too convinced about the old electricity network though. Also from the solar panels to the multiplus is quite new too.
Everything works fine even the scheduled charge levels works fine. the only thing that is missing is feeding from the battery.
It is just like an IT system, one step at a time untill you reach the goal. and this is my last item until my goal.
What is the ‘condition’ of your protective conductor?
Do you have a TN-C network with PEN coming from outside?
So N and PE brought together into your house … and then an N and PE is made from PEN or an earthing directly at the house?
I’ve just had a look at the grid code for France. A cut-off frequency of 50.1 Hz is entered here. However, your measured frequency is already at 50.1 Hz.
It may well be that no connection is being established for this reason …
For Tests you could switch to the “German” Grodcode … but you need a Gridcode Password
the protectictive conductors are pretty much normal since they have been installed only just a few weeks ago.
From outside I have the earth coming directly from the solar panels and it is connected to the earth inside the house (this is conected to a pole stuck in the ground as well too, I’ve seen it).
It is cabled to an outdoor pole directly into the ground and is connected to many different earth across the house incuding the multiplus.
For the frequency, yes it is 50.1 Hz but regularly is shifts to 50 Hz and at times to 49.9 Hz.
Look at the this:
Now it’s getting ‘technical’ and probably not for the forum but for a specialist who is familiar with the mains form and the connections on site.
The Multiplus checks the values for the protective conductor and the N before closing the relays to the mains. If the ‘earthing resistance’ is too high because there is no ‘real’ connection to earth, but only via earthing rods or old water pipes, the ESS test may well be cancelled.
If the password is known, simply use the German code with internal NA protection to rule out the cause of the error with the frequency …
