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  1. F

    motor cuts out , controller gets hot .

    UPDATE ON THE CONTROLLER ,, I sent an email off to the company in china last night about the different controller I received along with a photo . I ve since heard back from them saying that a new 350w 22A has been is being posted FOC along with an apology for sending the wrong one , this makes...
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    motor cuts out , controller gets hot .

    Thanks , I have this download . Does the P1 find the correct setting itself when adjusting it , and how do I know when its right ? Are there any indications im supposed to get from the LCD 3 display to tell me the settings im searching for are set ? Something to let me know its found it like...
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    motor cuts out , controller gets hot .

    Thank you for all replies to this problem . I noticed a difference between the controller i ordered online to the one i received . The one i ordered was this (KT36/48SVPRD-SLS02D) 350W DC SINE WAVE CONTROLLER /rated current 7A. The one i received ,,and this just only became obvious to me today...
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    KT Controller settings LCD 3

    Skoleskibe , I also have the KT LCD 3 controller and cannot get my head around it despite watching videos on how to configure it , especially how to keep the motor and controller cool . I will be watching your thread for answers as well . rick :?:
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    pre stressing spokes

    There really is a lot involved ,,, its an art form . :idea:
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    motor cuts out , controller gets hot .

    John ,, yes the slower 3 are probably the right combination ( 20 mph is about right ) , but it still gets very hot ! rick
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    motor cuts out , controller gets hot .

    Im very sure that the controller is the problem . I connected the motor up to my other ebike ,,, they have the same plug & pin connectors , the controller is 36v 48v compatible . "Its running beautifully" and no signs of either overheating the motor or controller . It is slower but feels smooth...
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    motor cuts out , controller gets hot .

    http://www.aliexpress.com/snapshot/6817942393.html?orderId=68497036168508 This is the controller I have , thanks and ill have another look at those troubleshooting liks rick
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    motor cuts out , controller gets hot .

    hI Y,KICK , Ive tried all 36 combinations using the graph in your link , but its not getting cool , heres what ive found with the front wheel raised off the ground floor in the garage . HALL WIRES ; CONTROLLER SIDE B,G,Y - MOTOR SIDE B,Y,G TO PHASE CONTROLLER SIDE B,G,Y - MOTOR SIDE B,Y,G...
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    motor cuts out , controller gets hot .

    I bought the motor , controller , LCD and throttle separately from the same company "sunwaycycle" aliexpress . The battery a 48v , I already had . Ill just go through all wire colour combinations writing each down as I go first , then if no solution (p1) is next . I may even ask sunway if they...
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    pre stressing spokes

    I ended up getting it real close ,,,within a MM so im happy with that . I also let the tyre down , soaped the beading so it was slippery and pumped air into it making it sit better (and its made a huge difference) Ykick ,,good advice , the more you do it the better you get at it , Thanks...
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    motor cuts out , controller gets hot .

    I played with the phase wires & halls . I did manage to get the throttle to stay on with the motor and with the front wheel off the ground , and it seems to be running smoothly , but the controller got very hot after only 2 minutes of it going at high speed . to fix this overheating is more...
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    motor cuts out , controller gets hot .

    Thanks dan ,,,, no way was I gonna do that .
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    motor cuts out , controller gets hot .

    D8veh , yes I joined the hall & phase wires colour to colour , I hear what your saying about that . The motor IS vibrating , running badly and 1 of the bars on the battery LCD display went off the screen showing quick battery drainage .Of all the 6 coloured wires only 5 of them have connectors...
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    pre stressing spokes

    Thanks everyone , good tips ,,,,,,, , i have disc brakes so so ill bear in mind amberwolf,s suggestion . rick
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    motor cuts out , controller gets hot .

    Im having a problem with my new build and need some advice to get things right . The motor is a 36v 450w 261rpm / the controller is 24/36/48 compatable as is the LCD display . The battery is a 48v lifepo4 . Ive just taken it for its first test run and it keeps on cutting out . I only went around...
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    pre stressing spokes

    Makes good sense voicecoils ,,,,,ill try it ! thanks
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    pre stressing spokes

    Why do I get the feeling ill be adjusting the radial only to find ive put the lateral out , then the lateral to find the radial will be out ,,,could be never ending , unless I fluke it ! When I was building this wheel I initially finger tensioned it prior to counting flats when tightening , but...
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    pre stressing spokes

    Ive just respoked a fat tyre wheel for my new motor , it all went very smoothly / no hickups as the calculations of spoke length for the rim and motor at the time were correct when I ordered online :D Im still putting this project together , last night I raised the front wheel to test power to...
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    throttle voltage with controller and wattage compatability

    d8veh , thanks , these are what im likely to get .http://www.aliexpress.com/item/ebike-24V-36V-48V-72V-Throttle-Speed-Throttle-Twist-Speed-Throttle-Electric-Scooter-ebike-Throttle-Grip/32368229312.html rick :D
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    throttle voltage with controller and wattage compatability

    Motomech hi , There are 3 types of throttles im considering . Yes the one I like has the built on power meter (looks really neat) . If I buy this , should it be a 48v ? and if no power meter anyone will do ? gr8 ! thank you ! Regards the controller ; Would the 36v motor & 48v battery give me...
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    throttle voltage with controller and wattage compatability

    Hi , I need a throttle , and my new build will have ; * A 36v motor which , with the right controller (which I havent bought yet) to match , my 48v battery . Is it important that a throttle matches the voltage of the motor ,,,or ,,,the battery ? OR I can use any voltage...
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    a 240rpm vs a 260rpm Question with a 350watt motor

    Cool ,,,,thanks ! :D
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    a 240rpm vs a 260rpm Question with a 350watt motor

    d8veh ,,,sheesh ,,the LEDs ARE 36v , bummer , so the 36v LEDs wont work "at all" with a 48v battery ? not even if the 48v goes flat ? I do know ive travelled 30MLS on my cruiser (26" 2.125tyres) as I got home on 1 charge . Maybe I just made it !!! thanks for letting me know about the LEDs ,,,I...
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    a 240rpm vs a 260rpm Question with a 350watt motor

    You will need a huge battery for that. With the fat tires, running in the low 20's mph, figure 1 to 1 1/2 miles per Ah Does that mean eg; my battery has 13ah so I would only get approx 20mls (32kms) ? Good news about the controller ,,, first thing will be to check it for 63v caps , or the buy...
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