question

ngillam avatar image
ngillam asked

VEBus SOC since recent Venus Update???

Hello, we have several stand alone systems that recently seem to have a problem with incorrect SOC readings. some of these have been working well for more than 12 months and since Nov / Dec we have noticed the issue.

Details:

Multiplus is used as the battery monitor.

Have set SOC to 100% whien bulk finished in VE config.
Have lowerer the absorbtion voltage in VE config to below the VEbus DC voltage level as displayed in VRM.

(Have also lowered the Float voltage to below the VEbus DC voltage level on vrm)

Each day the SOC is not syncing to 100% resulting in a gradual reduction in min and max SOC each day leading to a significant faulse reading.

Any ideas???


I have also noticed the "improve VEBus SOC with Solar Charger" is no longer visable in the system settings menu. Is this related?


NOTE. The solar charger on these systems is going to float each day.


SOC
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1 Answer
JohnC avatar image
JohnC answered ·

Hi @ngillam

Just to try to narrow it down, can you confirm that the Multi is calculating SOC as it should? That's available in the GX screen's Multi section.

If that's ok, then the issue is in the source selection.


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