Vladimir reports of missing steps on samx.
It is quite noticeable because we have a high resolution camera looking
at his sample.
He mentions 1.5 um lost after a scan.
It is currently driven by a SPD32M running in X8 ministepping mode with 1 A.
The stage is a Huber 5102.1
https://7id.xray.aps.anl.gov/~dufresne/8ID/8ID-E/8ID-E-pictures/8-ID-E-4circle-040315/20150403_130057.jpg
https://7id.xray.aps.anl.gov/~dufresne/8ID/8ID-E/8ID-E-pictures/8-ID-E-4circle-040315/20150403_125938.jpg
https://www.xhuber.com/fileadmin/user_upload/downloads/usermanuals/series_5102_en.pdf
It quotes a Reversal error of 5 µm
7/11/2022
It lost 60 um in the past week.
Stepping motor is in this picture https://anl.box.com/s/4iv2aw7vggx12s98f74rqgq5h2coqa7e
https://www.orientalmotor.com.sg/products/st/list/detail/?product_name=PK244-01B&brand_tbl_code=ST&series_code=G000&type_code=Unipolar+6+lead+wires&type=Standard+Type
Vexta PK244-01B
1.2A, 3.3 Ohm
question about drivers setting for Vexta PK244-01B
Dufresne, Eric <[email protected]>
Mon 7/11/2022 5:39 PM
To: [email protected] <[email protected]>
Hello,
I using one of your SPD32M to drive a Vexta PK244-01B in X8 ministepping. I am loosing steps when running in 1A mode.
I am wondering whether I should push the current to 1.5A.
https://www.orientalmotor.com.sg/products/st/list/detail/?product_name=PK244-01B&brand_tbl_code=ST&series_code=G000&type_code=Unipolar+6+lead+wires&type=Standard+Type#download
I am hoping you can provide advice here.
Regards,
Eric Dufresne
PK244-01B inquiry
Augusto Burgos <[email protected]>
Tue 7/12/2022 10:15 AM
To: Dufresne, Eric <[email protected]>
Hi Eric,
Morning. Thank you for contacting Oriental motor tech support. Regarding your inquiry,
the maximum current for the motor PK244-01B is 0.85A/phase [Bipolar series]
Let me know if you have any questions.
Augusto Burgos
Technical Support Engineering Supervisor
TSE | Oriental Motor USA Corp
Re: question about drivers setting for Vexta PK244-01B
Dufresne, Eric <[email protected]>
Tue 7/12/2022 12:11 PM
To: C Marshall
Mr Marshall,
thank you for your response. In light of the message below from Oriental motor, I think I'll reduce the ministepping to
increase the torque and see if this improves.
Cheers,
Eric
July 12, 2022
Changed settings of samx to 1000 steps/revolution and on SPD32M to 5 mini steps per step.
It thus means 1000 steps/revolution for this 200 step/rev motor.
Attachment 2 shows the new set up screen. Could not increase motor current so hopefully,
this will work to increase the torque. |