telectrix

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• Nov 12, 2015

• #2

as i see it, your battery power goes to the 2 terminals marked power on the left. the motor to the motor terminals on the right.

 

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Timmy Tucker

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• Nov 12, 2015

• #3

Thanks. Which cables in which connectors though? I dont want to blow it up!

 

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telectrix

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• Nov 12, 2015

• #4

what voltage are we talking about? 12V d.c.?

 

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Timmy Tucker

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• Nov 12, 2015

• #5

Yeh its 12v dc.

 

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telectrix

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• Nov 12, 2015

• #6

so wire 12V supply to the left ( + and - ) and the motor to the right ( + and - )

 

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Timmy Tucker

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• Nov 12, 2015

• #7

Just tried it and the speed regulator blew up. It just banged and something flew off it. Well thats progress. Now I am completely baffled. I dont understand any of this. I need to know which cables go in to which part. Well it doesnt really matter any more. Nevermind.

 

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Lagentium

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• Nov 12, 2015

• #8

Surely the connections cannot be any different to what the people above have said, was it rated correctly for the working voltage and current of the motor? Chin up mate!

 

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Darkwood

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• Nov 12, 2015

• #9

As above - your power in on the left positive and negative
your motor connections on the right positive and negative
you pot' is connected as shown above red +, black - and white (wiper) is in the v

I assume you checked the pot' connections with a multimeter before connecting as they can vary with brand but usually the outer ones on that style will be control supply and centre the wiper... if this pot differs or you connect wrong you can short out the control supply.
Did the pot' come with the kit?

If your sure this is definately a 12v dc kit and the connections made are as we discussed then welcome to the world of cheap chinese tat... designed to make the western world feel dumb when it won't work!

 

Last edited: Nov 12, 2015

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Leclanche

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• Nov 12, 2015

• #10

It all looks very straight forward as others have said. 12v positive & negative input to controller and 12v positive & negative out to motor. Did you wire this up like your drawing suggests? as this is not right and may have already damaged the controller. Your drawing shows a direct connection from the battery to the motor completely by passing the controller.

 

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Barry White

• Nov 12, 2015

• #11

It would have helped if you had kept this post and the other together as they are the same topic. http://www.electriciansforums.co.uk...some-help-circuit-connection.html#post1142927
I suspect you have the polarity wrong the battery -ve and +ve(after the switch) should have gone to the power side of your board the output on the board (motor) should have been conected to the motor.
The polarity is very important when using semiconductors



please ignore the wire colours shown you need to check which colour is +ve and -ve at the battery and then use diagram

 

Last edited by a moderator: Nov 12, 2015

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Darkwood

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• Nov 13, 2015

• #12

Good spot mykey, other thread closed and a link posted ... cheers.

 

Last edited: Nov 13, 2015

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UKMeterman

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• Nov 13, 2015

• #13

Hi,
How big is the motor?

 

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M-Ty

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• Nov 14, 2015

• #14

Just above the IN terminal block, I see a diode (commonly called an "idiot diode"), whose sole purpose in life was to conduct if the input had reversed polarity, and blow a fuse, the tracks to it, or even itself up or go short-circuit. It would do no further harm to physically cut it out and try the module again (connected correctly, of course) before writing it off completely.

 

Last edited: Nov 14, 2015

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grantr37

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• Nov 26, 2015

• #15

Post the board to me and I will fix it and post it back to you...a capacitor has blown off, no polarity protection...what was your little motor for, was it a project?

 

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grantr37

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• Nov 26, 2015

• #16

I'm sure we can fix you up with a better motor speed controller board than that......

 

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