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shajazzi
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« on: January 10, 2012, 08:39:12 PM » |
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Hi Guys,
I am just a little confused here at the Solar Charging and Load Control diagram. I take it that image 1 means you may set up in like either image 2 or image 3.
shajazzi
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« Last Edit: January 10, 2012, 10:49:02 PM by shajazzi »
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shajazzi
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« Reply #1 on: January 10, 2012, 09:21:14 PM » |
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Giving it a little more thought I think that there is also another option according to image 1 and that is image 4, if that is the case where would you connect your pv, wind turbine etc. The original image (image 1) clearly states load or solar array.  shajazzi |
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« Last Edit: January 10, 2012, 09:32:17 PM by shajazzi »
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shajazzi
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« Reply #2 on: January 10, 2012, 10:50:09 PM » |
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Has anyone got any ideas on this one please?
shajazzi
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billi
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« Reply #3 on: January 10, 2012, 11:35:25 PM » |
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First you have to tell what you intent to do  Cause that charge-controller can work in several set-ups I only know it from reading  Billi |
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Guinness no Grid comes near
1.6 kw and 2.4 kw PV array , Outback MX 60 and FM80 charge controller ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw windturbine
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shajazzi
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« Reply #4 on: January 11, 2012, 12:32:14 AM » |
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Hi Billui,
I want to run four downlighters and an invertor for a cumputor and charge some batteries.
Shajazzi
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billi
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« Reply #5 on: January 11, 2012, 12:37:54 AM » |
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charge the batteries with what ? PV , Wind, Hydro, car alternator, ....  |
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Guinness no Grid comes near
1.6 kw and 2.4 kw PV array , Outback MX 60 and FM80 charge controller ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw windturbine
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shajazzi
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« Reply #6 on: January 11, 2012, 12:49:14 AM » |
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2 x 135W YINGLI PV MODULE
1 x MORNING STAR 45A LOAD CONTROLLER
1 x 12V 500W INVERTER
shajazzi
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billi
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« Reply #7 on: January 11, 2012, 12:52:12 AM » |
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then its picture 3 in your posts  and the inverter plus and minus to the Battery terminals (fuse ? , Battery monitor ?) Billi |
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« Last Edit: January 11, 2012, 12:55:43 AM by billi »
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Guinness no Grid comes near
1.6 kw and 2.4 kw PV array , Outback MX 60 and FM80 charge controller ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw windturbine
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shajazzi
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« Reply #8 on: January 11, 2012, 12:55:59 AM » |
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And the load goes where?
shajazzi
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shajazzi
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« Reply #9 on: January 11, 2012, 01:05:51 AM » |
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Hi Billi,
sorry, I just scrolled to the bottom of your post.
I must have been out of the room when we got to this bit.
I thought that a charge controller would not only stop the batteries from being over chargered but also from being run flat.
If I was to to clip 2 crocodile leads to + and - on the battery and run some stuff for a day or so (with very little sun) then this would flatten the batteries and there is nothing that the charge controller is going to do to stop it. Am I right?
shajazzi
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« Last Edit: January 11, 2012, 01:14:34 AM by shajazzi »
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billi
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« Reply #10 on: January 11, 2012, 01:31:11 AM » |
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Nowhere , stays in the PV Panels , like in every common chargecontroller PV setup or Grid tied system (if grid shuts off ) , different to wind and hydro , cause they need a load to be regulated / slowed That was the answer to the post And the load goes where?
Now the answer to your next question .....  hope I am right , cause i only know charge controllers and off grid ideas , but not the Morningstar in particular , but as far as i know we (most) connect the Inverter (from DC to AC ) to the Battery directly and this Inverter switches off when battery is discharged , but most inverters unfortunately switch of too late  , when voltage of Battery is to low I expect the drawings you supplied , showed a DC load that can be controlled by the controller not an AC Inverter Hope others are more familiar Billi |
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Guinness no Grid comes near
1.6 kw and 2.4 kw PV array , Outback MX 60 and FM80 charge controller ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw windturbine
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shajazzi
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« Reply #11 on: January 11, 2012, 07:31:50 AM » |
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So I could have saved a bundle of money and just purchased a split charger relay or made my own for a couple of quid and dumped the excess into another battery/inverter or setup to maybe heat some water.
That's where is was going wrong by thinking the charge controller was more complex than it is.
shajazzi
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eabadger
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« Reply #12 on: January 11, 2012, 07:59:08 AM » |
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You can add relay boards to these controllers, which could disconnect load, or just use a voltage sensing relay to do the same at a preset voltage.
The cheaper "Juta" type solar controllers do have load output, and do remove load at preset voltage.
Does seem a bit overkill having one of these tristars for a small setup.
steve
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1440w PV main array at 24v, excide 2v 1000a forklift cells, 320w PV secondary array at 12v. Enfield 1944 ex RAF 5.6kw diesel genset, Lister AC1 28v diesel charging set at 2.8kw. soon to be 1kw wind turbine.
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stephendv
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« Reply #13 on: January 11, 2012, 08:13:01 AM » |
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Check the inverter manual, but most of them have a low voltage disconnect setting which will shut the inverter down if the batteries get to below a certain voltage.
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billi
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« Reply #14 on: January 11, 2012, 08:26:13 AM » |
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You can heat water with this controller with a DC immersion element
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Guinness no Grid comes near
1.6 kw and 2.4 kw PV array , Outback MX 60 and FM80 charge controller ,24 volt 1600 AH Battery ,6 Kw Victron inverter charger, 1.1 kw high head hydro turbine as a back up generator , 5 kw woodburner, 36 solar tubes with 360 l water tank, 1.6 kw windturbine
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