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  #21  
Old 05-30-2019, 06:15 AM
Bigfillly Bigfillly is offline
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Hmm I tried to upload a video but at the end of uploading it it said error uploading, it canít be too big as as itís only 30 seconds and done on an Iphone, Iíll keep trying, Iíll probably get a few pics on here once itís back together,
Thanks again for the info functional artist, whatís your name anyway, I canít keep saying functional artist
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  #22  
Old 05-30-2019, 06:43 AM
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landuse landuse is offline
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Originally Posted by Bigfillly View Post
Hmm I tried to upload a video but at the end of uploading it it said error uploading, it canít be too big as as itís only 30 seconds and done on an Iphone, Iíll keep trying, Iíll probably get a few pics on here once itís back together,
Thanks again for the info functional artist, whatís your name anyway, I canít keep saying functional artist
His name is Kevin
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  #23  
Old 05-30-2019, 11:40 AM
Bigfillly Bigfillly is offline
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  #24  
Old 06-01-2019, 11:39 AM
Bigfillly Bigfillly is offline
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Well it’s bad news I afraid, I swapped out the rectifier but the controller is still stuck with just the red light on, I’ll remove all the white stuff on the circuit and inspect the other components :-(
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  #25  
Old 06-02-2019, 06:55 AM
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Functional Artist Functional Artist is offline
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Hi all,
Iím building an electric go kart and got all the components, they are:-
Montenergy 2000w-4000w 48v 98a motor
Kelly kdz48300 300a controller
Contactor
Foot pedal accelerator
The only thing Iím missing is the resistor that goes across the contactor,
Can anyone give me a clue how to work out which I need,
Thanks very much,
Phil.
Hey Phil,
Yup, my name is Kevin.

Well that SUCKS!

Hmmmmmmmmmmmmm
...missing the (precharge) resistor that goes across the contactor?

From what I understand, this resistor precharges the capacitators in the controller. This let's them fill up slowly so they don't get SLAMMED with the full pack voltage when the system is first turned on.

If the previous owner (set up for a boat) used that controller without a precharge resistor, that could be (at least part of) the problem.

Can you tell where the "white stuff" came from?
...or what it is?
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  #26  
Old 06-03-2019, 09:41 AM
Bigfillly Bigfillly is offline
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Hi Kev,
I have the precharge resistor in place, I think it was a metal key start I used, i tested it and it sends 5v though the metal case when switched on, this goes through the metal it’s mounted on, then through the frame, then to the controller case which is mounted to the frame,
The white stuff is in all Kelly controllers, it’s something they put over the components so you can’t work on them yourself,
I’ll remove it one day,
Thanks,
Phil.
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  #27  
Old 06-03-2019, 12:58 PM
Bmr4Karts Bmr4Karts is offline
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I'm getting closer to starting the actual building stage of my kart. I have a question related to this thread. What is the purpose of the contactor? Is it just a high amp relay that is controlled by low current switch?
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  #28  
Old 06-03-2019, 04:30 PM
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I'm getting closer to starting the actual building stage of my kart. I have a question related to this thread. What is the purpose of the contactor? Is it just a high amp relay that is controlled by low current switch?
Yup
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