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parateam asked

ERROR: Max Charge Voltage (52.4V, Pylontech) ignored, when limit Grid feed-in in ESS settings

Hello, there is a bug in the system. My Setup:

3xMP-II 3000, 3xPylontech 5000, 1xMPPT RS 450/100

Victron stops charching above 52,4V with Pylontech batteries. This works perfect until i limit the Grid feed-in in the ESS settings. AC and DC feed-in is activated.

AC inverters (Kostal an Hoymiles) are connected to the AC out1 of the MP-II and are not regulated with the GX-system.

I've got an Overvoltage error from the Pylontechs: 56,7V !!!

Is there a solution for this?

overvoltage.png

overvoltagefeed-in limit
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2 Answers
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parateam answered ·

Can anyone help me? Again an overvoltage alarm!

overvoltage-alarm.png

dvcc.png

splash-539v.png


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dvcc.png (52.2 KiB)
splash-539v.png (59.3 KiB)
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parateam answered ·

A poor solution, but no more alarms. The voltage kepps below 52,4V.


My Workaround with NodeRed:

1. calculate a summary of Input-Power of L1 to L3.

2. if value is below -1500 (W) switch PV-Charger off, otherwise switch on (1min interval)

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