motor unknown

[ferny28]

Hi, I have to control a gearmotor which doesn't have any tag or spec.I know it's a run capacitor 220 volts.it has five wires coming out of its terminal box. two yellows, two blacks, one red.I have to control it on -off -forward and reverse for a conveyor belt. Can you guys give some guidance about this wiring and define this motor?

thanks

 

[ScottyUK]

Get a multimeter, measure the resistances between terminals, and post the results. We're engineers, not magicians.


----------------------------------

If we learn from our mistakes I'm getting a great education!

 

[Skogsgurra]

Serious? If this application is of any importance, how are you planning to maintain it without knowing anything about the motor? Spare motor will be a problem, for obvious reasons.

Get a new motor that suits the application. A single phase motor has a rather low starting torque and conveyors are known to have a high torque demand at start. Chances are that it will not start. Use a VFD and a three-phase induction motor. Dirt cheap it is also.

Gunnar Englund

http://www.gke.org

--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...

 

[ferny28]

This motor is from an existent used dough sheeter, which uses two conveyors tables that run forward and reverse.This machine came with this motor disconected to its control, besides that, it didn't have any spec tagged on it.


----------I
I---RED----------------7 ohms readings
I 1-4= 16 ohms
I---YELL---------------2 1-7= 2.7ohms
MOTOR I 4-7= 5.5 ohms
TERMINAL I no reading on yell
BOX I---BLK----------------4 and 1-4-7
I
I---BLK----------------1
I
I----YELL--------------5
--------- I


I connected 1-5 and 4-2 to 220 volts and worked cw.then
I switched 1-2 and 4-5 then work ccw.
The amps reading at 4 and 1 was 2.5 amps.
Note:the motor was unloaded.
also I had some reading on 7 and
ground,about 45 volts. while the motor was running.

 

[Skogsgurra]

Sorry ferny. If you can't even bother to turn your diagram right (instead of upside down) - how can you expect that anyone is interested in helping you?

Gunnar Englund

http://www.gke.org

--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...

 

[waross]

Hi Gunnar I wrote something similar but then didn't bother to post it.

Bill
--------------------
"Why not the best?"
Jimmy Carter

 

[Skogsgurra]

Yes, we are both too grumpy these days

Gunnar Englund

http://www.gke.org

--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...