ac to dc converter with speed control

[hoolko]

can anyone help me? ive attached a picture....this is an ac to dc converter with speed control for a dc motor...it came with no instructions and ive never seen one like this....do I wire my motor to the armature or excitation? thanks,Nick

 

[shrtrnd]

It might help if we knew what 'dc motor' you plan to use.

 

[hoolko]

thank you kindly....it is 17 pound high torque....90vdc....1/4 hp....2.9 amp....i can attach pic if needed...thank you for your time very much,Nick

 

[OLIVE2222]

Motors are not my cup of tea but you must connect both the excitation and the armature

see here under
http://www.aliexpress.com/item/DC-0...V-1A-DC-motor-speed-controller/978817771.html

regards,
Olivier

 

[brevor]

Since your motor has only 2 wires they should connect to the armature.

 

[jpanhalt]

How many wires to the motor? If only two, then they go to the armature terminals. If there is a separate ground wire, it goes to ground.

The two wires of a permanent magnet motor will go to the armature connections. A shunt-wound motor may have just 2 wires, which go to the armature. If the field of a shunt wound motor is accessible, then the field wires goes to the field/excitation. The two wires to an AC/DC motor goes to the armature.

Here is a manual from a motor controller for shunt, PM, and AC/DC series motors: http://www.kbelectronics.com/manuals/kbic_manual.pdf

John

 

[hoolko]

ok....im advised to connect my motor in 2 different ways.....any other input from members? thanks, Nick

thank you so much John and brevor....i really appreciate your time and effort....sincerely, Nick

 

[jpanhalt]

ok....im advised to connect my motor in 2 different ways.....any other input from members? thanks, Nick

What other advice? Both brevor and I gave the same advice, I think. I was a little more wordy. That's why it took me a minute longer.

John

 

[hoolko]

ok, i just connected to the armature only and the speed control does not work.. the motor is running full at the 1750 rpm rating.....any other suggestions? ive messaged the seller i wish to return this item as there seems no simple hookup thanks everyone, Nick

 

[duke37]

You had the same advice from brevor and jpanhalt.

I also gave the same information in your duplicate thread.

There is a minimum speed control, have you set this correctly?