Solar Panels on a Stanton

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Solar Panels on a Stanton

Post by Grandad Alan on Tue Sep 27, 2016 9:22 pm

Can anyone tell me if the solar panels continue to charge the batteries when the control panel is switched off?

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Re: Solar Panels on a Stanton

Post by -mojo- on Wed Sep 28, 2016 11:50 pm

The Owner's Manual tells you this, in section 3.6 "Solar Charge Management". If you don't have a copy to hand, you can view it here:

http://www.auto-sleepers.com/media/2014/12/Stanton-2013-handbook.pdf
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Re: Solar Panels on a Stanton

Post by Pete Taylor on Fri Sep 30, 2016 8:30 pm

7-19
CONNECTION OF SERVICES
3.6 Solar Charge Management
The EC500 PSU incorporates a built-in solar charge management feature, which will control the
input from a solar panel (when fitted, maximum rating 120W). Depending on the charge state of
the batteries, the solar power will be directed to the required battery, and continuously monitored
to ensure optimum operation. For this system to operate intelligently, the shutdown button should
be left switched on. If the shutdown button is turned off then the solar panel will charge the
leisure battery only.

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Re: Solar Panels on a Stanton

Post by Grandad Alan on Tue Oct 11, 2016 4:38 pm

Thanks Mojo and Pete for replying.  I had seen that in the handbook but I was rather puzzled.
I have never seen the amps coming from the solar panel to be greater than the amps discharging from either of the batteries.
Today the sun is shining but low in the sky, and the solar panel is delivering 0.2 amps.
The leisure battery is discharging at 1.0 amps.
The vehicle battery is discharging at 1.1 amps.

I presume the EC500 and the EC480 together are taking the 1.0 amps from the leisure battery in  order to function, but I wondered how much of this is the EC480 display, and how much is the  EC500. 
So if the display were switched off, but the EC500 left on, could the solar panel maintain the charge in the leisure and vehicle batteries?

These readings are taken with fully charged batteries.

I assume the 1.1 amps coming from the vehicle battery is powering the alarm.

Anyway, thanks again.
Alan

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Re: Solar Panels on a Stanton

Post by -mojo- on Tue Oct 11, 2016 6:10 pm

Grandad Alan wrote:

I assume the 1.1 amps coming from the vehicle battery is powering the alarm.


It's very unlikely to be taking that much. It's more likely that the Sargent current monitor needs recalibrating, as they are very prone to drifting (or at least they are on the functionally similar EC325 and EC328 models). Offhand I don't know the exact procedure on your model, but it will either be in the manual or will turn up with a quick internet search.
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Re: Solar Panels on a Stanton

Post by Grandad Alan on Tue Oct 11, 2016 6:28 pm

Thanks, Mojo, I will get on to it!

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Re: Solar Panels on a Stanton

Post by PLOUGHLIN on Tue Oct 11, 2016 8:25 pm

For the EC 325, EC328 similar.

"Re-calibrate the current sensor as follows:
With the charger switch turned off, and the power turned off at the
control panel (no LED’s on)
Scroll down ▼ the display until battery current is shown
Hold down the select button ◄ (left arrow) until 'calibrating….'
appears; keep the button pressed until the battery current reading reappears.
Release the button.
Now repeat the process to store the new setting.
Hold down the select button ◄ (left arrow) until 'calibrating….'
appears; keep the button pressed until the battery current reading reappears.
The current reading should now be correct"

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Re: Solar Panels on a Stanton

Post by Grandad Alan on Wed Oct 12, 2016 3:52 pm

Thanks mojo, Pete, and Ploughlin, re-calibration done and now the readings all make perfect sense, both when the leisure battery is selected and when the vehicle battery is selected.
Thanks all.
Alan

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