12v DC motor controller Golf trolley/caddie

Discussion in 'General Electronics Chat' started by nyckuk, Jun 6, 2016.

  1. nyckuk

    Thread Starter New Member

    Jun 6, 2016
    2
    0
    Hello first time here
    My trolley died ,so i took the controller apart to look for anything obvious .When i eventually put it back together it sort of come back to life??
    I turn it on, rotate the switch/potentiometer and you can hear a slight buzzing from the controller ,i have to rotate it nearly all the way before the motor kicks in but then the trolley shoots off .Where before it was a sort of soft start and rotate the potentiometer to the desired speed ,now its nothing/buzzing or full power/speed
    Ive tried a new Potentiometer and still the same
    A new controller is £45-50 which isn't a option at the moment
    Is there anything obvious / easy i could try/replace ??

    The easiest would probably get a replacement DC Controller ,but i might need help getting the correct one
    I found these ,The potentiometer on mine has only 2 wires these have 3 or more
    http://www.ebay.co.uk/itm/Adjustabl...roller-V9S6-/191793650432?hash=item2ca7cadb00
    http://www.ebay.co.uk/itm/272210396523?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT

    Old Controller = Zonefollow
    cct Board = ZF0205 issue 3
    Relay = hke cma4-s-c

    Trolley motor = 12v 150w

    Thanks
     
  2. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,526
    2,369
    150w is not allot for a trolley, for $5.00 it is worth a try.
    Max.
     
  3. nyckuk

    Thread Starter New Member

    Jun 6, 2016
    2
    0
    Ok ,ill just buy a replacement
    The 2 i've short listed above seem powerful enough but my only concern is the potentiometer wiring .
    Mine only has 2 wires where the replacements has either 3 wires or 5 wires.
    I only need it to run forward and soft start not essential but not full speed straight away

    thanks
     
  4. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,526
    2,369
    Most PWM controlled in analogue fashion with a pot use 3 terminals (potentiometer) rather than 2 wires, (variable resistor).
    Max.
     
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