This is a continuation/update of a now two year old post.
Thanks to the Raspberry Pi 3b, I have detailed logs per minute of information. Now I have a lengthy menu of graphs to review. This menu of graphs replaces the functionality of a remote meter. I iswireless as well.
Lets review this morning.
The first thing in the morning, I want to see how things went overnight. Here is the graph for this morning.
My conclusion is that the system is working well and therefor there were no problems that need to be addressed. This took about 3 minutes for me to view on my mobile device. I am done for today.
Why?
1. The blue line(V_Batt) shows the bank began the night in excess of 13V. As you can see, the blue line starts off the top of the graph. This is systems normal and the bank ended well charged yesterday.
2. The blue line stayed above the green line(2 Hrs). This means the charging time for Absorption is set to one(1) hour. The downward spikes are the ICECO 12V fridge cycling. If the fridge were not running, the ending Volts likely would have been above 12.8V. This is the seen as Volts at the top of the blue line between fridge cycles. There is a static 3A draw for misc electronics.
3. If the bank volts had dipped below the green line, the ABS time would have been set to 2 hours.
4. If the bank Volts had dipped below the yellow line(~ ABS, the float would have been cancelled and the ABS would run until sunset.
The green and yellow line's Voltage settings are the main triggers that allow catch-up if the bank had been used heavily enough beforehand to pull the low Volts down. These values were determined through extensive testing and analysis of finishing Amps between APR 2017 and JAN 2018.
HTH;
John
Thanks to the Raspberry Pi 3b, I have detailed logs per minute of information. Now I have a lengthy menu of graphs to review. This menu of graphs replaces the functionality of a remote meter. I iswireless as well.
Lets review this morning.
The first thing in the morning, I want to see how things went overnight. Here is the graph for this morning.
My conclusion is that the system is working well and therefor there were no problems that need to be addressed. This took about 3 minutes for me to view on my mobile device. I am done for today.
Why?
1. The blue line(V_Batt) shows the bank began the night in excess of 13V. As you can see, the blue line starts off the top of the graph. This is systems normal and the bank ended well charged yesterday.
2. The blue line stayed above the green line(2 Hrs). This means the charging time for Absorption is set to one(1) hour. The downward spikes are the ICECO 12V fridge cycling. If the fridge were not running, the ending Volts likely would have been above 12.8V. This is the seen as Volts at the top of the blue line between fridge cycles. There is a static 3A draw for misc electronics.
3. If the bank volts had dipped below the green line, the ABS time would have been set to 2 hours.
4. If the bank Volts had dipped below the yellow line(~ ABS, the float would have been cancelled and the ABS would run until sunset.
The green and yellow line's Voltage settings are the main triggers that allow catch-up if the bank had been used heavily enough beforehand to pull the low Volts down. These values were determined through extensive testing and analysis of finishing Amps between APR 2017 and JAN 2018.
HTH;
John
Good Morning!
A very different story this morning.
I ran a driveway test yesterday by running the A/C in the TT. I plugged the TT into the inverter in the van. It was a nice warm sunny day. I wanted to see what I could get from solar.
Here is what solar produced yesterday.
It looks like my base load is around 48Ahs, or 2A average. I will give solar the next two days to restore the bank.
HTH;
John
A very different story this morning.
I ran a driveway test yesterday by running the A/C in the TT. I plugged the TT into the inverter in the van. It was a nice warm sunny day. I wanted to see what I could get from solar.
Here is what solar produced yesterday.
It looks like my base load is around 48Ahs, or 2A average. I will give solar the next two days to restore the bank.
HTH;
John
Good Morning;
Here is another key graph. This graph shows the 10 day trend for battery Voltage. The Voltage is measured via the Remote Temperature Sensor(RTS) connected to the solar controller. The Raspberry Pi 3B collects this information at one minute intervals. There are 1440 daily recordings.
The story today is that I have not checked anything since 4/13 and I want to know if anything unusual happened.
Red line(Min) - The first nine days are history, the last date is the condition as-of today's date-time in the title of the graph. I see the Red line stayed around 12.6V. That is good and normal.
Lt Blue line(Max) - It looks like there is a trend downward. My analysis is that the battery temperature has been rising and the controller is responding to the RTS and lowering the ABS set-point. Maybe good.
Green line - This also shows a decline but then there is a day above 14V. This tells me that the RTS Volts were above 14V for 360 minutes, or 25% of the time(1440/4). It appears that the controller is playing catch up as it should do. I look outside and see we are at full sun so we will have a splendid solar day. All is good and normal. ๐
HTH
John
Here is another key graph. This graph shows the 10 day trend for battery Voltage. The Voltage is measured via the Remote Temperature Sensor(RTS) connected to the solar controller. The Raspberry Pi 3B collects this information at one minute intervals. There are 1440 daily recordings.
The story today is that I have not checked anything since 4/13 and I want to know if anything unusual happened.
Red line(Min) - The first nine days are history, the last date is the condition as-of today's date-time in the title of the graph. I see the Red line stayed around 12.6V. That is good and normal.
Lt Blue line(Max) - It looks like there is a trend downward. My analysis is that the battery temperature has been rising and the controller is responding to the RTS and lowering the ABS set-point. Maybe good.
Green line - This also shows a decline but then there is a day above 14V. This tells me that the RTS Volts were above 14V for 360 minutes, or 25% of the time(1440/4). It appears that the controller is playing catch up as it should do. I look outside and see we are at full sun so we will have a splendid solar day. All is good and normal. ๐
HTH
John
Good morning Everyone!
Here is an example where the temperature was too cold for the ICECO 12V fridge to cycle. The downward spikes are not in the blue line as we saw in yesterday's graph. The downward slope is due to:
1. The battery temperature decreasing.
2. Static/parasitic draw of around 3A.
The low Volt reading was 12.854 and appears to be the low point at the end of the blue line. This graph ends when the controller switches to Bulk state.
The bank is doing well. I am done for today.
HTH;
John
Here is an example where the temperature was too cold for the ICECO 12V fridge to cycle. The downward spikes are not in the blue line as we saw in yesterday's graph. The downward slope is due to:
1. The battery temperature decreasing.
2. Static/parasitic draw of around 3A.
The low Volt reading was 12.854 and appears to be the low point at the end of the blue line. This graph ends when the controller switches to Bulk state.
The bank is doing well. I am done for today.
HTH;
John
