motor controller from treadmill

[bubblehead1]

I found this motor control on Amazon and it looks like it would work with my motor but would like your thoughts on it. It has a voltage on the field of 100v at a current of 1A and the armature 0-90 at 8A.

 

[MaxHeadRoom78]

But you should confirm whether your motor is a series field (Universal) that is what the IC in the board was made for, not shunt field DC only.
Where is the link to the Amazon type?
Besides, I cannot see any connection on the TM board for a field terminal

 

[bubblehead1]

MaxHeadRoom78 I just read your post so that control in my last post probably would not work? And, if I follow the wires I will find that the armature and field will be wired in series and if I were to hook up those two wires to me 24v supply it should run?

 

[MaxHeadRoom78]

If in fact it is a typical Universal AC/DC series field motor, typically with that application, it would be mains voltage compatible.
But also if you wire the motor to a 24vdc or AC supply it should run OK
Did you check the other pair to see if they might be tach wires?

 

[bubblehead1]

Just went and looked at the board again and there is a blue and a brown wire that go to terminals labeled TA1 and TA2. Didn't understand the labeling before but that must be the tack.

 

[MaxHeadRoom78]

I agree, If you spin the motor you may see a open/closing signal on the two leads, i.e. reed switch etc.

 

[bubblehead1]

Amazon for this other control is
HQ-SXPWM-X Output 0-90V/110V/180V/220V ... - Amazon.com

 

[MaxHeadRoom78]

Can you post a clear pic of the motor?

 

[bubblehead1]

That opening and closing signal would come from contacting the brushes?

 

[MaxHeadRoom78]

Amazon for this other control is
HQ-SXPWM-X Output 0-90V/110V/180V/220V ... - Amazon.com

It might run it OK, but it is more suited to P.M. field motors.
The type to run yours, if it is in fact Universal, is a triac controller, such as the T.M. board you show

 

[MaxHeadRoom78]

That opening and closing signal would come from contacting the brushes?

No, normally there is a sensor, separate to the motor.
The other pair would be the series armature and field

 

[bubblehead1]

 

[MaxHeadRoom78]

In spite of it saying DC motor, it appears to have a laminated core for the field, which tends to point to the Universal version.
As indicated, the TDA IC normally controls a Triac which would be in the AC line, then that would be followed by the bridge rectifier in your case.
Have you tried it on LV DC?

 

[bubblehead1]

I will go out and hook up the two black wires to my 24v DC supply or I could just use my 12v battery charger but then you say a universal motor would run on AC as well? I can probably find a low voltage AC source also.

 

[MaxHeadRoom78]

It will be interesting to see if it runs on AC OK, at low voltage it should not hurt anything to test.

 

[bubblehead1]

I will try it on DC because that is how I intend on using it. To bad I do not have the entire treadmill. The motor and control board are all that I have.

 

[MaxHeadRoom78]

Did you actually hook the motor up to the board and connect a 10k pot to the three control terminals to test?

 

[bubblehead1]

Yes and nothing happened. It did run when I first got it but then it sat for a few years and won't run now. Thought it might have been a problem with the terminals but I pulled the wires off one by one and that did not help. I don't understand why that would be. The pot wires are soldered to the board. The motor, tach and AC supply wires have lugs on them.

 

[MaxHeadRoom78]

Did you check to see if there is resistance across the motor leads?

 

[bubblehead1]

I assumed there was because it ran fine hooked up to my 24v supply but I will check the resistance across the wires and let you know what it is. I think I have probably taken up enough of your time today and you probably have other things you need to do so I will do some more on the motor and run a couple of errands and get back to you later. Thanks for all your help.