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wiring motor for 220V

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Forum topic by mzimmers posted 04-11-2015 05:13 PM 689 views 0 times favorited 13 replies Add to Favorites Watch
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mzimmers

168 posts in 3380 days


04-11-2015 05:13 PM

Topic tags/keywords: motor 220v wiring

Hi, all -

I know this subject has been covered here before, but I’m a little puzzled by what I’m seeing.

Yesterday I took possession of a Laguna Tools jointer. Before I assemble it, I want to rewire it for 220V. The instructions say to refer to the diagram on the motor wiring panel. This diagram is nearly useless (or I don’t know how to interpret it). Here’s a pic:

I don’t know how to interpret it, but there are 4 wires coming out of the motor, and 2 are yellow (along with 1 black and 1 red). I have absolutely no idea how to make sense of this diagram in a way that is consistent with the current 120V wiring.

Can anyone tell me what colors go to what here? Thanks a bunch…I could wait until Monday and call Laguna, but I’d like to get this going this weekend if possible.

-- M. Zimmers


13 replies so far

View TheFridge's profile

TheFridge

5765 posts in 950 days


#1 posted 04-11-2015 05:33 PM

if it was my machine: disconnect the hot from the 2 motor leads, reconnect to either one of the 2 motor leads. Doesn’t matter which. Disconnect the neutral and reconnect to the other motor lead that WAS tied in with the hot. The 2 motor leads that were tied to the neutral will be left alone but tied together.

You’re pretty much just taking the two winding out of parallel and putting them in series.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View canadianchips's profile

canadianchips

2354 posts in 2461 days


#2 posted 04-11-2015 05:39 PM

You want it running on 120 volt. Take your cord, it will have 1 black, one white and one green wire. Connect the green wire to ground terminal in motor.(Green screw) Then connect your black wire to #1&3 in motor. Connect white wire to #2 &4.

IF you want it to run on 240 volt.
Your cord will be thicker and have 3 wires. 1 black, one white and one green.
This time connect the black wire with #1 & 4 in motor and white white to #2 & 3 in motor. Green is grounded to green screw again.

-- "My mission in life - make everyone smile !"

View DKV's profile

DKV

3940 posts in 1968 days


#3 posted 04-11-2015 05:43 PM

You should have posted a pic of the current wiring.
☆☆

-- This is a Troll Free zone.

View mzimmers's profile

mzimmers

168 posts in 3380 days


#4 posted 04-11-2015 05:46 PM

Hey, Fridge…I had to read your post a few times before I got it. So, the current wiring is:

plug white – motor red – motor yellow
plug black – motor black – motor yellow

If I understand you, for 240V it will be:

plug black – motor black
plug white – motor yellow
motor yellow – motor red

-- M. Zimmers

View johnstoneb's profile

johnstoneb

2143 posts in 1637 days


#5 posted 04-11-2015 05:49 PM

there should be a plate on the motor take that off and the wires in the motor should be the colors on your diagram and just connect according to the diagram.

-- Bruce, Boise, ID

View CypressAndPine's profile

CypressAndPine

62 posts in 1271 days


#6 posted 04-11-2015 05:59 PM

Do the wires have numbers on them? If so, connect 2 & 3 together and connect 240V power to 1 & 4.

If there are no numbers then one of those yellows should be a white. Maybe one of them has a white stripe on it, or maybe it is just faded to look yellow.

If you can figure out which one is supposed to be white, then connect YELLOW and BLACK together, and then connect 240V power to RED and WHITE.

-- Cypress Jake, New Orleans

View MrUnix's profile (online now)

MrUnix

4226 posts in 1663 days


#7 posted 04-11-2015 05:59 PM

I’d be willing to bet that your ‘two yellow wires’ are actually one yellow and one white.

From the diagram, for 240v, you tie black and yellow wires together at the motor, and hook your two hots from the 240v outlet up to the other two (white and red).

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

View mzimmers's profile

mzimmers

168 posts in 3380 days


#8 posted 04-11-2015 06:06 PM

The two yellow wires aren’t identical in color, but neither looks white. It’s kind of hard taking a pic in there, but here’s one:

I suspect MrUnix’s comment is correct and the yellow that’s connected to plug white is really supposed to be white.

Sheesh…I hope the rest of assembling this tool isn’t so complicated…

-- M. Zimmers

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mzimmers

168 posts in 3380 days


#9 posted 04-11-2015 06:15 PM

Oh, NOW I understand the diagram. (Yes, I’m a bit slow sometimes.) So, the yellow(ish) wire on the right of my second picture is really supposed to be white, yes? I think maybe I’ll put a label on it that says “WHITE” for future purposes.

-- M. Zimmers

View bbasiaga's profile

bbasiaga

757 posts in 1459 days


#10 posted 04-11-2015 06:42 PM

In these diagrams for 110V, how can you tell whether the Red/Yellow pair should go with the neutral or the hot from the plug? What happens if you get that backwards?

-Brian

-- Part of engineering is to know when to put your calculator down and pick up your tools.

View MrUnix's profile (online now)

MrUnix

4226 posts in 1663 days


#11 posted 04-11-2015 06:46 PM

In these diagrams for 110V, how can you tell whether the Red/Yellow pair should go with the neutral or the hot from the plug? What happens if you get that backwards?

Doesn’t matter.

Cheers,
Brad

-- Brad in FL - To be old and wise, you must first be young and stupid

View mzimmers's profile

mzimmers

168 posts in 3380 days


#12 posted 04-11-2015 08:22 PM

Thanks for the help, everyone. It works now. Hopefully the quality of the motor is better than the wire coloring and diagram clarity are.

Now for the hard part…getting the thing together.

Thanks again…

-- M. Zimmers

View canadianchips's profile

canadianchips

2354 posts in 2461 days


#13 posted 04-12-2015 12:25 AM

I WAS WRONG IN MY 240 CONNECT !
Cord Black to motor 1 or red
Cord White to motor 4 or white
Motor 2 & 3 tied together.
MY applogy

-- "My mission in life - make everyone smile !"

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