Color Code for Treadmill Motor Wires?

Topics include, Machine Tools & Tooling, Precision Measuring, Materials and their Properties, Electrical discussions related to machine tools, setups, fixtures and jigs and other general discussion related to amateur machining.

Moderators: GlennW, Harold_V

User avatar
SteveHGraham
Posts: 7788
Joined: Sat Jan 17, 2009 7:55 pm
Location: Florida

Color Code for Treadmill Motor Wires?

Post by SteveHGraham »

My DC treadmill motor arrived. Far as I know, "DC" means positive and ground, but this thing has 4 wires. Is there a convention that will tell me which ones make it go?

Wondering if I can test it by hooking it up to a battery charger. I just want to see if it moves or not so I can give my Ebay feedback and get on with life.
Every hard-fried egg began life sunny-side up.
User avatar
SteveHGraham
Posts: 7788
Joined: Sat Jan 17, 2009 7:55 pm
Location: Florida

Re: Color Code for Treadmill Motor Wires?

Post by SteveHGraham »

Well, now that I can see it better, red is + and black is -.

Now if I just knew what the two blue wires do. It's surprisingly hard to come up with a schematic on Google.
Every hard-fried egg began life sunny-side up.
User avatar
SteveHGraham
Posts: 7788
Joined: Sat Jan 17, 2009 7:55 pm
Location: Florida

Re: Color Code for Treadmill Motor Wires?

Post by SteveHGraham »

Sensors! Right? What else could they be? I'm thinking tachometer.

It turns fine with 12V applied. Smooth and silent.
Every hard-fried egg began life sunny-side up.
User avatar
SteveHGraham
Posts: 7788
Joined: Sat Jan 17, 2009 7:55 pm
Location: Florida

Re: Color Code for Treadmill Motor Wires?

Post by SteveHGraham »

It reverses just fine. I read that if the brushes are perpendicular to the shaft, a DC motor will be reversible. Don't know if it's always true, but it sounds logical.
Every hard-fried egg began life sunny-side up.
mixdenny
Posts: 68
Joined: Wed Feb 05, 2003 1:20 pm
Location: North Olmsted, Ohio

Re: Color Code for Treadmill Motor Wires?

Post by mixdenny »

I believe the blue wires are the overheat sensor. The tach on all the treadmills I have seen is a slotted or striped disc that rotates between the legs of an optical sensor. It is on the end of the treadmill drive roller. Dennis
chucketn
Posts: 159
Joined: Sat Jun 21, 2008 8:15 am
Location: Jonesborough,TN

Re: Color Code for Treadmill Motor Wires?

Post by chucketn »

Dennis is correct. The blue wires are to a overtemp switch.
What type of controller did you get? I'm partial to the MC-60 series treadmill controllers. I have 3. One powers my X2 mill with a 2.5 hp motor, one is on my sand muller, and one is waiting on installation in my 7x lathe.

Chuck
WJH
Posts: 1417
Joined: Sat Jan 16, 2010 9:29 pm
Location: Florida

Re: Color Code for Treadmill Motor Wires?

Post by WJH »

Sounds like my Lathemaster 8x14 lathe needs a donor treadmill! Tired of belt changes, variable speed would be very nice.
User avatar
tornitore45
Posts: 2077
Joined: Tue Apr 18, 2006 12:24 am
Location: USA Texas, Austin

Re: Color Code for Treadmill Motor Wires?

Post by tornitore45 »

Not to be pedantic, but all brushes are perpendicular to the shaft.
To be reversible the plane of the brushes must be perpendicular to the plane of the magnets, rendering the axial view symmetrical.
Mauro Gaetano
in Austin TX
User avatar
SteveHGraham
Posts: 7788
Joined: Sat Jan 17, 2009 7:55 pm
Location: Florida

Re: Color Code for Treadmill Motor Wires?

Post by SteveHGraham »

I ordered an MC-60. It's not here yet.
Every hard-fried egg began life sunny-side up.
chucketn
Posts: 159
Joined: Sat Jun 21, 2008 8:15 am
Location: Jonesborough,TN

Re: Color Code for Treadmill Motor Wires?

Post by chucketn »

Steve, you won't be sorry.

Chuck
User avatar
SteveHGraham
Posts: 7788
Joined: Sat Jan 17, 2009 7:55 pm
Location: Florida

Re: Color Code for Treadmill Motor Wires?

Post by SteveHGraham »

I took "perpendicular to the shaft" to mean perpendicular to a tangent to the side of the shaft and also perpendicular to the axis. Not sure if that's what you mean.
Every hard-fried egg began life sunny-side up.
WJH
Posts: 1417
Joined: Sat Jan 16, 2010 9:29 pm
Location: Florida

Re: Color Code for Treadmill Motor Wires?

Post by WJH »

SteveHGraham wrote:I took "perpendicular to the shaft" to mean perpendicular to a tangent to the side of the shaft and also perpendicular to the axis. Not sure if that's what you mean.
Sometimes the brushes are offset and create "timing" with the armature. Such motors are much more efficient in one direction than another...

The MC-60 controller is all thru-hole and analog! I LOVE it, that means you can fix it yourself, even make your own from scratch!! https://groups.google.com/forum/#!topic ... vu-ipLIUC0
Post Reply