Stepper Motor with Driver combination clarification

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essenceindia
Posts: 33
Joined: Thu Nov 16, 2017 7:46 am

Stepper Motor with Driver combination clarification

Postby essenceindia » Tue Nov 21, 2017 8:15 pm

Hi Good Day !!

As we would like to suggest one of our customer application Motor: PKP264U20A-SG36-L with Driver CVD223-K combination, so please let us know whether this combination is right models ??

Since this motor is uni-polar winding type (6 leads) and driver is bipolar type, please let us know your valued suggestion to proceed further with our customer in this regard.

if it is suggestable, what are the 4 leads to be connect to the driver ?? out of 2 wires what to be do ??

Please clarify to proceed further with our customer.

Thanking you & Regards,

om_tech_support_JS
Posts: 192
Joined: Tue May 10, 2016 4:48 pm

Re: Stepper Motor with Driver combination clarification

Postby om_tech_support_JS » Wed Nov 22, 2017 8:51 am

Hi essenceindia,

Good Questions! Starting with the motor and driver combination, I would actually recommend going with either the CVD228-K or CVD228BR-K driver due to the size of the motor. The first being the board type driver and the second has a mounting bracket. I have linked the comparison below.
https://catalog.orientalmotor.com/compa ... 613+108617

When connecting these two together, you have to consider which wiring configuration you want to use with this motor. The standard wiring would be for a Bipolar (series) connection which would utilize a 4 wire motor. However, since you have selected the unipolar motor, another option is to wire the motor in a Bipolar Half Coil wiring. I have linked a page that references the different wiring and performance of 4, 6, and 8 lead wire motors:
http://www.orientalmotor.com/stepper-mo ... tions.html


As referenced from the page above, you would need to either (Option 1.) Tape off the black and red leads OR (Option 2.) Tape off the green and blue leads so that you end up with only 4 wires instead of 6. The driver will then have the following leads to connect to:

Option 1: Tape off the black and red leads
(DRIVER >> Motor)

BLUE >> Blue
RED >> White
GREEN >> Green
BLACK >> Yellow

Option 2: Tape off the green and blue
(DRIVER >> Motor)

BLUE >> White
RED >> Red
GREEN >> Yellow
BLACK >> Black


Lastly, since the CVD228(BR)-K driver will output 2.8 amps of current, you will need to adjust the current before connecting the motor. In order to do this, change the RUN dial to position 9 as shown in the link below:
http://www.orientalmotor.com/products/p ... etting.pdf

essenceindia
Posts: 33
Joined: Thu Nov 16, 2017 7:46 am

Re: Stepper Motor with Driver combination clarification

Postby essenceindia » Wed Nov 22, 2017 9:28 am

Thankou verymuc for your detailed information.

However the customer has purchased Motor: PKP264U20A-SG36-L with Driver: CVD223-K combination models, now it would be difficult to change the driver model, since their project is under peak situation now.

So you are requested to let us know how to go ahead in this regard, whether the above combination is recommendable to install at this peak situation ??

If it is recommendable, please send us wiring details to proceed further in this matter.

Please help us to resolve this issue to proceed further with our customer.

om_tech_support_JS
Posts: 192
Joined: Tue May 10, 2016 4:48 pm

Re: Stepper Motor with Driver combination clarification

Postby om_tech_support_JS » Wed Nov 22, 2017 1:14 pm

Hi essenceindia,

In regards to your post, the CVD228(BR)-K driver would have the most optimized performance as it was originally tested with the PKP264 frame size motors. However, since your motor only requires 2.0 A/phase, then the CVD223-K driver could also be used with this motor as the maximum output current from this driver is 2.3 Amps.

When using the CVD223-K driver with the PKP264U20A-SG36-L motor, the wiring will stay the same as before. However, the RUN dial will now need to be set to position C as referenced in the table below:
http://www.orientalmotor.com/products/p ... etting.pdf

essenceindia
Posts: 33
Joined: Thu Nov 16, 2017 7:46 am

Re: Stepper Motor with Driver combination clarification

Postby essenceindia » Fri Dec 01, 2017 1:20 am

We would like to know the driver capacity, whether we can run the motor @150 deg/sec speed ??
Actually We have achieved 70 deg/sec @ 1.5khz in full step mode, current(1.8A), open collector method and motor wiring type full coil.

When we provide 100deg/sec, motor was not able to rotate, could you please advise us on the same.

om_tech_support_JS
Posts: 192
Joined: Tue May 10, 2016 4:48 pm

Re: Stepper Motor with Driver combination clarification

Postby om_tech_support_JS » Fri Dec 01, 2017 3:12 pm

Hi essenceindia,

In regards to your post, is the speed in degrees/second or revolutions / minute? When sending the information, is it in one of these settings, or are you sending the frequency value?

Below is the speed-torque curve of the motor:
https://catalog.orientalmotor.com/Asset ... sg36-l.jpg


The maximum speed of this motor is around 83 RPM (500 degrees/sec) [10kHz] at full step.

If the setting is in RPM instead of Deg/sec, then running at 100 RPM is over the speed.


HOWEVER, I believe your issue is with the starting frequency as you have also referenced the 1.5kHz value. The last part of the speed torque curve to notice is the fs mark. This mark is for the maximum starting frequency of the motor. From the graph, it looks like the maximum starting frequency is about 1.5 kHz. Therefore, I would recommend having your starting frequency at or below this value and then accelerating up to the 3kHz value for the 150 deg/sec speed.


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