Controlling dc motor using plc

sramaraju · Jun 21, 2017

Hi,
I need to be able to control the DC motor with below details;
I need a power supply with variable output = 8VDC to 18 VDC and be able to vary the output in 0.1VDC increments
Power Supply would be 24VDC
And also measure the Current & Distance travelled by the motor?

Please suggest any ideas?

Thanks in advance

AutoMax · Jun 22, 2017

You don't want a power supply, you want a DC drive or DC motor driver circuit board. What's the motor FLA? Do you need to excite a field or is it a PM motor? Require field weakening? Have a resolver or encoder?

sramaraju · Jun 22, 2017

What kind of DC drive (Any Particular Model)?
Motor FLA- 3A
It is a PM Motor.
Doesn't need field awakening
It doesn't have a resolver or an encoder. Its a little Dc Motor mounted on a part.
Thanks for your reply.

GaryS · Jun 22, 2017

I think this is what you are looking for

http://www.dartcontrols.com/

AutoMax · Jun 22, 2017

https://www.minarikdrives.com/p-17366-m1.aspx

I've used the above before, but if you want to know distance traveled you'll need a feedback device of some sort.

mendonsy · Jun 22, 2017

http://catalog.orientalmotor.com/item/all-categories/speed-controllers/blhd50k?cid=1002&prodid=3001066&itemid=18926&backtoname=Item+%23+BLHM450KC-A&pane=sb&bc=100%7C3001067x
These work well for small DC motors.

sramaraju · Jun 22, 2017

To measure the current continuously on what would be the best option? Current measuring transducer to Analog Input Card on PLC and to measure the distance Can I use a Position LVDT?

mendonsy · Jun 22, 2017

http://www.crmagnetics.com/dc-current-transducers
These would probably work for current measurement. Distance is going to depend on what kind of accuracy you need.

sramaraju · Jun 22, 2017

I need the distance accuracy to be minute around 0-10mm in 1mm increments.

Controlling dc motor using plc

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