Sunsynk help

Heisenborg

Heisenborg

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Hi all

Noticed today that there was no voltage from mppt2 on my 8kw sunsynk.

Would a system reboot help and what are the steps?

20230824_172422.jpg
 
Enzo Matrix said:
Hi all

Noticed today that there was no voltage from mppt2 on my 8kw sunsynk.

Would a system reboot help and what are the steps?

View attachment 1576558
Click to expand...
That screen does not show that there is no voltage on MPPT2. What is does show is that MPPT2 is producing no power and MPPT1 is producing very little power. The likely cause is that there is no current on MPPT2 while the voltage will be close to the VOC of the string.

There is to little information to determine if something is wrong, but my guess is that what you are seeing is caused by low irrandiance (no direct sunlight on the panels very early in the day or late afternoon).

Are you worried that the two string are producing different power? This is pretty normal
 
Koosvanwyk said:
That screen does not show that there is no voltage on MPPT2. What is does show is that MPPT2 is producing no power and MPPT1 is producing very little power. The likely cause is that there is no current on MPPT2 while the voltage will be close to the VOC of the string.

There is to little information to determine if something is wrong, but my guess is that what you are seeing is caused by low irrandiance (no direct sunlight on the panels very early in the day or late afternoon).

Are you worried that the two string are producing different power? This is pretty normal
Click to expand...
Hi. Pic was taken at 5pm or so.

I can see on the solar assistant graph that we had half the usual production. Just snapped a pic showing zero wattage from mppt2 as reference
 
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