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urs4-2008 asked

Error 38 PV input shutdown after generator has run

I get this fault every time after running generator. Was not like this before. Anyone else getting this?

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MPPT Controllers
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Alexandra avatar image
Alexandra answered ·

@urs4_2008

I have seen that happen on a system where the MP was charging higher than it should have been because DC ripple from a loose connection was causing incorrect voltage readings.

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urs4-2008 avatar image urs4-2008 commented ·

Nothing is loose in this setup. There are other solar chargers and a lot of logging devices. No one reports anything wrong or suspicious voltage, only the 250/60 MPPT. I see the latest firmware (1.61, which also this device has) has some changes regarding voltage detection. I suspect there might be a new bug regarding this function with the new firmware, as the error reports:

Possible reasons for this error to occur:


The Battery voltage (12/24/36/48V) is set incorrectly. Use VictronConnect to set the right Battery Voltage.

But voltage is since installed locked to 48. Other Victron MPPTs in the same setup does not trigger an alarm.

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