MPPT controller timer settings

Discussion in 'Solar Power' started by Xan, Aug 21, 2013.

  1. Xan

    Xan Read Only Funster

    Joined:
    Sep 25, 2012
    Messages:
    160
    Likes Received:
    104
    Location:
    Bristol
    New solar kit now freshly installed.

    MPPT controller is one of these

    Currently have left everything on factory settings, should I change anything?
     
  2. StitchUp

    StitchUp Read Only Funster

    Joined:
    Mar 12, 2012
    Messages:
    872
    Likes Received:
    946
    Location:
    Bridgend, South Wales
    As far as I'm aware, you set the timers both to n = not used or something like that.

    I believe they refer to the terminals labelled 9. These are not used in my installation and I believe they can be used for attaching timed lights or similar.

    John
     
    Last edited: Aug 21, 2013
  3. Wildman

    Wildman Read Only Funster

    Joined:
    May 30, 2008
    Messages:
    15,458
    Likes Received:
    8,598
    Location:
    Ilfracombe, Devon
    It depends if you have a load connected or not. The battery discharge level set to 10.5V I think is too low for comfort 11.9 is a discharged battery 10.5v and if you do not charge fairly soon you could kill the battery. The load is on a timer unless you select manual and have it on permanently. If no load is connected then you lose the over discharge protection.
     
  4. pappajohn

    pappajohn Funster Life Member

    Joined:
    Aug 26, 2007
    Messages:
    29,443
    Likes Received:
    16,872
    Location:
    YO11 2BD
    wot roger sed !

    set battery type to your particular battery type..gel, lead acic etc then leave alone.

    the timer mode is for night lighting etc and will turn on and off a porch light etc if connected.
    it does nothing when the panel is providing charge current...only works at night or if the panel is covered etc...and will only provide maybe a couple of amps max.
     
  5. Xan

    Xan Read Only Funster

    Joined:
    Sep 25, 2012
    Messages:
    160
    Likes Received:
    104
    Location:
    Bristol
    Cheers all.
     
  6. Techno

    Techno Funster Life Member

    Joined:
    Jul 28, 2010
    Messages:
    13,847
    Likes Received:
    14,495
    Location:
    Leeds the one up North
    The battery cut off voltage will be UNDER LOAD and does not reflect the state of charge.
     
    • Like Like x 1
Loading...

Share This Page