Somebody please help me on this for/reverse 110 motor

Thread Starter

DandyDan

Joined Mar 9, 2025
1
I have a 110 motor with no wiring diagram. It has a centrifugal switch (2 brown wires) and 4 other wires. Red and black in ,white and yellow out. It also has a run compositor and a start compositor. I want it to reverse which I can get it to do by swapping the red and black wires. My problem is that I want it to switch forward/ reverse with push button switches. I have tried many configurations but still can’t get to work . Since I can wire it to go forward or reverse I think I’m somewhere in the ball park. But from what I have been reading it may take relays or contractors. Can someone please explain how to put in an on/off switch and push button f/r momentary switches. Then how to wire all theses components together to work. I can put in the on/off switch but if you actually draw a schematic I would like it to be included. I have invested a lot of time but I surrender and admit that I need help. Anybody please
 

sghioto

Joined Dec 31, 2017
8,633
Using two individual SPDT momentary switches for direction control.
Something like This if it will handle the current.
Alternately momentary switches to control relays for higher current requirements.
1741579892350.png
 
Last edited:

MaxHeadRoom

Joined Jul 18, 2013
30,558
I have a 110 motor with no wiring diagram. It has a centrifugal switch (2 brown wires) and 4 other wires. Red and black in ,white and yellow out. It also has a run compositor and a start compositor. I want it to reverse which I can get it to do by swapping the red and black wires. My problem is that I want it to switch forward/ reverse with push button switches. I have tried many configurations but still can’t get to work . Since I can wire it to go forward or reverse I think I’m somewhere in the ball park. But from what I have been reading it may take relays or contractors. Can someone please explain how to put in an on/off switch and push button f/r momentary switches. Then how to wire all theses components together to work. I can put in the on/off switch but if you actually draw a schematic I would like it to be included. I have invested a lot of time but I surrender and admit that I need help. Anybody please
If in N.A. it is 120v now !
' compositor' = Capacitor?
'contractors' = Contactors?
The centrifugal SW will be the start winding.
The easiest way probably to reverse the Run winding WRT the start/run winding.
The run winding normally comes out as a pair across the mains power.
A little more detail on motor & Cap connections would help!
 

MisterBill2

Joined Jan 23, 2018
27,172
OK, first some verification: This is a 120 volts AC motor, NOT a DC motor. RIGHT?? Next, I want to verify that you will actually have three push-buttons, Forward, Reveres, and STOP.
IF that is the case, then the circuit in post #2 will not work!!
Are the capacitors marked "start" and "Run", or is that an assumption?? Reasonable, though.
Does the motor have a tag with specifications on it, such as VOLTS, AMPERES, and Horsepower, and RPM???
What lead to your wire assignment of: " 4 other wires. Red and black in ,white and yellow out."??? What sort of equipment was this motor removed from??
And , what do you have as resources?? A multimeter able to read resistance will be quite useful.
 

sghioto

Joined Dec 31, 2017
8,633
I don't know exactly what kind of motor that is but the TS stated in post #1:
"I want it to reverse which I can get it to do by swapping the red and black wires."
If that's true then the circuit in post #2 will work.
 

sghioto

Joined Dec 31, 2017
8,633
It can not be done with simple SPDT push buttons. It will require DPDT push buttons.
Two SPDT switches required, one for Forward and one for Reverse operation.
Post #2 redrawn.
"R" represents where the RED wire was originally connected.
"B" represents where the BLK wire was originally connected.
1741908674167.png
 
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