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moodlyd avatar image

Multiplus II on ESS with Pylontec batteries low solar usage

Hi

I have the Multiplus II with a CCGX, smart solar charger and connected with the Pylontech Lithium batteries.

All devices have latest software.

All settings are as per instructions.

Feed extra power to grid option selected.


However, solar used only to sustain battery and none to the Gris even though batteries are charged.

Multiplus-IIESSsmart solar set-up help
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please send screen shots of your ESS setup and a diagram of the wiring setup as well


please advise on all devices F/W versions


I suspect that the below is not turned on please check

1558001304413.png (44.9 KiB)

Hi Paul B

Multiplus Inverter Firmware 430

CCGX Firmware 2.23

Solar Charger 1.39

See screen shots attached

3 Answers
Murray van Graan avatar image
Murray van Graan answered ·

Did you disable sustain mode in Veconfig? Also, if you are feeding back rather set ESS mode to keep batteries charged and see what happens

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Hi Murraynated, perfect thank you, it was the sustain mode.....i decreased the sustain voltage on the inverter to 47.5V and it solved the problem.

thanks

Awesome! Glad that fixed it

moodlyd avatar image
moodlyd answered ·

One more thing for other users, just remember that PYLONTEC supplies then incorrect network cable. Making a new cable, if you have the crimper, is quick and easy.

The important connections is what is stated below, the others can be 1-1, and criss crossed for these connections:

Function Victron VE.Can side to Battery side:

GND Pin 3 to Pin 2

CAN-L Pin 8 to Pin 5

CAN-H Pin 7 to Pin 4

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Guy Stewart (Victron Community Manager) avatar image
Guy Stewart (Victron Community Manager) answered ·

It is common to have the grid set point to 0, or 50. Yours is set to 4100, why is this? I suspect this is your cause.

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Hi, no, it was set at 50, I increased it for a short while to see the impact, but that is not the reason!