LumberJocks

4 Lead Motor Wiring Problem

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by ChunkyC posted 06-06-2010 05:05 AM 3348 views 0 times favorited 7 replies Add to Favorites Watch
View ChunkyC's profile

ChunkyC

856 posts in 1951 days


06-06-2010 05:05 AM

Topic tags/keywords: electrical motor

I’ve got a 4 lead, 1 phase, 115V, single speed, Capacitor start motor that I want to use. It’s a Chinese made motor that doesn’t seem to conform to any standard, at least none that I know of or can find on the WWW. It doesn’t even have a HP rating on the motor let alone a wiring diagram!

It has Black, White, Red and Blue wires in the pecker head. On a typical 1 phase capacitor start motor you would tie L1-T8-T1 and L2-T4-T5 together. I took the cover off of the capacitor and it has Black and White wires coming off of the two terminals.

My best guess for wiring this gem would be to tie L1-Black-Red together and L2-White-Blue together.

Anyone have any thoughts? Any way of determining the start and run windings, maybe using a multimeter? Think it might be reversible by swapping the Red and Blue???

Thanks,

Chunk

-- Chunk's Workshop pictures: http://spadfest.rcspads.com/thumbnails.php?album=135


7 replies so far

View MarkwithaK's profile

MarkwithaK

370 posts in 1874 days


#1 posted 06-06-2010 07:12 AM

Are you dead certain that this motor is meant for your application? The colors you described seem more like a blower motor for a furnace/air handler….Black being high, blue-medium , red-low and white neutral.

-- If at first you don't succeed then maybe skydiving isn't for you.

View TopamaxSurvivor's profile

TopamaxSurvivor

14906 posts in 2372 days


#2 posted 06-06-2010 07:21 AM

I think I would try that first.

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View ChunkyC's profile

ChunkyC

856 posts in 1951 days


#3 posted 06-06-2010 01:10 PM

MarkwithaK: Dead certain. The motor came off an old Chinese made Drill Press.

-- Chunk's Workshop pictures: http://spadfest.rcspads.com/thumbnails.php?album=135

View TopamaxSurvivor's profile

TopamaxSurvivor

14906 posts in 2372 days


#4 posted 06-06-2010 09:19 PM

Use a VOM to check to see if the Blk and Wht are the cap leads in the pecker head. Put it on for a couple minutes, reverse the leads and see if you get a voltage blip on the meter as it drains off. Do this on the volts scale. An analog meter will be best to check.

-- "some old things are lovely, warm still with life ... of the forgotten men who made them." - D.H. Lawrence

View ChunkyC's profile

ChunkyC

856 posts in 1951 days


#5 posted 06-06-2010 09:44 PM

Thanks for the tips! Looks like my guess was correct.

HOT-Black-Red and COMMON-White-Blue and the motor turns CW. I didn’t try swapping the cap leads to see if it would run CCW since CW is the direction that I want.

Thanks again.

cc

-- Chunk's Workshop pictures: http://spadfest.rcspads.com/thumbnails.php?album=135

View Dave Price's profile

Dave Price

90 posts in 1671 days


#6 posted 06-06-2010 09:46 PM

i agree with Mark sounds like a 3 speed motor, did the drill press have a speed selector switch on it? ive never seen one like that but that don’t mean that’s there’s not. that motor might not be OEM either, i souped up a small drill press once with a larger motor “worked great”

-- Dave Price , Roswell New Mexico

View Dave Price's profile

Dave Price

90 posts in 1671 days


#7 posted 06-06-2010 09:47 PM

sorry didn’t see your post while i was posting. glad you figured it out

-- Dave Price , Roswell New Mexico

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics

HomeRefurbers.com

Latest Projects | Latest Blog Entries | Latest Forum Topics

GardenTenders.com :: gardening showcase