Changing +/- for my engine.

[ros246]

Hi,


I want to change the direction of this engine of mine

My supplyer tells me i Just have to switch about the +\-, but my investigation tells me otherwhise.

There is a condensator ontop of the engine. one i think 220uf or 2200uf.

Am i right is these about to blow if the current is wrong.


THanks, Ray.

 

[nandhu015]

First give us the details about your engine

 

[dick_freebird]

You need to reverse the starter-circuit power connections
without reversing the main winding connections.

 

[Prototyp_V1.0]

The simplest way to change a motor direction, regardless of motor type is to physically turn it around another axe then the rotation axe:

 

[ros246]

First of thanks for answering my thread.

yes you say starter and winding circuit,

my idea for a start is to first solder the condensator of the circuit and then try to apply reverse current.


Im not familar working with condensators and think they wont work as expected if their applied wrong. Am i right?

 

[Prototyp_V1.0]

You take a picture of your motor, so can somebody tell you wich type it is.

Have you actually considered turning the motor different way as I depicted for you?

 

[dick_freebird]

If it has a capacitor on the side, it's a capacitor-start
induction motor.

Go look this up on Wiki or something, and see if that's
right. Until you know what type of motor it really is,
everything's just speculation.

But if it a capacitor-start motor then you want to
do what I said. Not solder things at random, unless
you have a supply of spares and a fire extinguisher.

 

[ros246]

Yes, thanks.

capacitor-start induction motor.

Please give me an example of how to reverse the starter-circuit power connections.

 

[dick_freebird]

Pull the rear housing off the motor, you should see a
centrifugal switch assembly and some sort of wiring
posts where you connect main power and the windings.

One wire pair will go straight into the field winding.
One pair will have one side going through the switch
to the capacitor to a start winding and back to the
terminal block. This latter is your start circuit. You
may need to disconnect the obvious side of the
start winding, and beep out the other end if two
same-color wires emerge from the winding nest.
But pull both ends of the start winding, swap them
end for end, and check it out - rotation should
start and run reversed from before.

If you're lucky you'll see a legend on the terminal
block indicating start & run, or something. If it's
all soldered or wire-nuts, you'll have to dope it out
electrically. Make yourself a drawing maybe.

 

[ros246]

Ok, this is what i discovered. from my expertice ive got 4 points to solve this.

+\- capasitor, and +\- in the starter circuit.

If i have to make a resolder of the winding part it is just one possibility, did not test if this is + or -.