Any Electricians out there?

[SilentUnicorn]

I am trying to wire a 220v motor with a reversing switch (dayton 2x441) and could use some advice.



mark

 

[RobT]

Sorry - but you may not be able to. If its a single phase (brushless) induction motor (which is most likely) then it will only run in one direction. The motor will likely have a starting coil and a capacitor built in that starts the motor by creating an out of phase field in the direction its supposed to turn. These are hard wired into the motor design and its impossible to reverse. There are single phase reversable motors, but these eithier have brushes and commutators (like on a DC motor, often seen on variable speed reversable hand drills etc) or they are induction motors with two starting coils, one for each direction. So unless your electric motor is designed to be reversable - and most are not - you could be out of luck. But if it is a reversable motor, post more details and we can see what we can do.

Rob.

 

[martx-5]

There are single phase reversable motors, but these eithier have brushes and commutators (like on a DC motor, often seen on variable speed reversable hand drills etc) or they are induction motors with two starting coils, one for each direction. So unless your electric motor is designed to be reversable - and most are not - you could be out of luck. But if it is a reversable motor, post more details and we can see what we can do.

Rob.

Most single phase motors I've run into are reversible, and they don't have brushes or commutators. If the motor is reversible, it should tell you on the label of the motor. It also will tell you what wires have to be swapped to change direction. There should be an electrical access plate where the power goes into the motor. Take that off, and there should be several terminals with the wires that need to be swapped. If you have directions that came with the switch, it should be clear how to wire it up. Most motors I've seen have one wire inside that access plate that will go onto one of two terminals to determine direction. That switch is also a Grainger number (2X441), so maybe there's some more info on their site.

 

[SilentUnicorn]

Excellent- the motor is reversible rotation. It is capacitor start. the below link is how i have the motor and switch wired now.

I would like to reference this diagram

https://farm4.static.flickr.com/3067/3006925290_7a4f741822_b.jpg

my motor is a dual voltage Westinghouse. I am wiring it 220

I have wired my motor using this diagram. When plugged in the motor hums. If i engage the switch the motor runs. When i turn off the switch the motor continues to run, until i unplug it.

I believe i have sorted the run and start windings correctly. Due to the fact i can make the motor reverse by changing the switch position after the motor is stopped (by unplugging it)

Looking at the diagram (lower diagram for 220) the terminal where L1 is hooked also has T4 on it. This combined with L2 running to the motor completes the circuit thu the run windings making the motor hum. maybe...

Should the run windings be hot all the time? doesn't seem right to me..


T1 = L1

T2 and T3 = The internal connection between the two run windings- in series for 220v

T4 = L2

T5 = one side of the run winding

T8 = other side of the run winding


Is there a way to use this switch?

Looks to me like i need to break the Leg that runs to the motor...

 

[leecreek]

Set up the switch so it swaps t5 and t8.

 

[SilentUnicorn]

Set up the switch so it swaps t5 and t8.

Done.

Here is a view of the switch and motor wiring.

5 and 8 are labeled S1 S2
dashed lines show one position of switch, mirrored for the opposite position.

in shown position S1 is hooked to S2

in opposite position L1 would hook to S1


m

 

[SilentUnicorn]

Check this out!

https://www.allexperts.com/user.cgi?m=13&sm=1&catID=2405&qID=4901730&expID=62714

makes me feel not so dumb after all..


m