My house is totally off-grid. My setup looks like this (from Schneider's Insight):
The Inverter charges from an SMA Sunny Boy and uses frequency shifting to tell it when to charge and when to stop. It has been working fine for the last 3 years, and now all the sudden I'm getting hit with these over-voltage errors which will cause the Schneider inverter to trip the whole system:
The company that installed the batteries and Schneider equipment is blaming the SMA (naturally it couldn't be any of their stuff). I'm a total idiot when it comes to this stuff, and all of my understanding is based off of conversations with the battery company, so perhaps I'm not explaining everything correctly.
Their explanation does make sense, and they did walk me through going through upgrading the firmware on all the Schneider devices (MPPT, Gateway, and Inverter). I was able to figure out how to update the firmware on the Sunny Boy as well, but it didn't fix the issue either.
Does anyone have a similar setup that can help me figure out why the SMA doesn't stop charging the battery when it's all the way topped off?
I can see that throughout the day it does turn off the SMA at certain voltages though:
The Inverter charges from an SMA Sunny Boy and uses frequency shifting to tell it when to charge and when to stop. It has been working fine for the last 3 years, and now all the sudden I'm getting hit with these over-voltage errors which will cause the Schneider inverter to trip the whole system:
The company that installed the batteries and Schneider equipment is blaming the SMA (naturally it couldn't be any of their stuff). I'm a total idiot when it comes to this stuff, and all of my understanding is based off of conversations with the battery company, so perhaps I'm not explaining everything correctly.
Their explanation does make sense, and they did walk me through going through upgrading the firmware on all the Schneider devices (MPPT, Gateway, and Inverter). I was able to figure out how to update the firmware on the Sunny Boy as well, but it didn't fix the issue either.
Does anyone have a similar setup that can help me figure out why the SMA doesn't stop charging the battery when it's all the way topped off?
I can see that throughout the day it does turn off the SMA at certain voltages though: