question

terafirma avatar image
terafirma asked

BMV excessive current measured

We have a site that was working perfectly fine then one day I woe up to this:

1706835039928.png

This site is off-grid and only has 1200w of solar capacity and definatly not capable of supporting nearly 1000A (shunt is a 500A model). Site actual power draw is actually around 100w and is so low the graph can't even show it due to the fault scaling the numbers so high:

1706835520621.png

We have swapped the BMV and shunt but still get the same readings. And I can confirm we have only connected cables to the shunt bolt terminals not the PCB screws.

Any idea why this would happen randomly is it the GX given a shunt/BMV swap didn't fix it and if so any idea where I can check settings/calibration?

BMV Battery MonitorVenus OS
1706835039928.png (61.9 KiB)
1706835520621.png (15.4 KiB)
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klim8skeptic avatar image klim8skeptic ♦ commented ·
@Terafirma Did you change the cable between the shunt and display?

A damaged cable or plug can cause problems.

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1 Answer
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terafirma answered ·

Yes tried that and the VE-Direct cable as well neither corrected the issue. Didn't try a different VE.Direct port on the GX (and now its a 5 hour drive away).

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