Velocity control issue with Ultra3000 and MPL-A4540F-S

[motortest 0]

Hello! I have an issue on commissioning my ultra3000 drive purchased through eBay.

My drive is 2098-DSD-150 and a motor is MPL-A4540F-S. My problem is that the motor does not rotate after enabled and commanded velocity. The motor is tested with another drive (2098-DSD-30) and it works fine. Therefore, the drive may be an issue. I tried several velocity gains including gain used in 2098-DSD-30 and other several configurations. The motor only oscillates/vibrate without rotation or rotates like stepping motor with vibration and noise. Do you have any comment or advice on this issue?

[kaiser_will 65]

Have you tuned this servo drive to this servo motor?  With the motor oscillating, it sure sounds like the servo tuning is not holding position very well.  Refer to page 59+.

http://literature.rockwellautomation.com/idc/groups/literature/documents/in/2098-in005_-en-p.pdf

 

[motortest 0]

3 hours ago, kaiser_will said:

Have you tuned this servo drive to this servo motor?  With the motor oscillating, it sure sounds like the servo tuning is not holding position very well.  Refer to page 59+.

http://literature.rockwellautomation.com/idc/groups/literature/documents/in/2098-in005_-en-p.pdf

 

Thanks kaiser_will, I will follow the procedure you advised and update the result. Have a nice day!

Edited 10 Nov 2016 by motortest

[motortest 0]

4 hours ago, kaiser_will said:

Have you tuned this servo drive to this servo motor?  With the motor oscillating, it sure sounds like the servo tuning is not holding position very well.  Refer to page 59+.

http://literature.rockwellautomation.com/idc/groups/literature/documents/in/2098-in005_-en-p.pdf

 

The manual uses RSLogix 5000 which I do not have. I chatted with AB customer service and was informed that the software should be purchased separately. 

Meanwhile, I tried velocity command reducing the current limit to 24 A (previously 53A). Now the motor does not oscillate, and only rotates few degrees (~ 10 ~ 5 degrees) without any noise once enabled with velocity command.

[kaiser_will 65]

Rockwell also has Ultraware software for the Ultra3000 servo controller family; purchased software.

http://literature.rockwellautomation.com/idc/groups/literature/documents/um/2098-um001_-en-p.pdf

Of note, this servo, Ultra3000 #2098-DSD-150, is to be discontinued in a few weeks, 12/31/2016.

http://www.rockwellautomation.com/global/solutions-services/capabilities/migration-solutions/product-search/results.page

[motortest 0]

Just now, kaiser_will said:

Rockwell also has Ultraware software for the Ultra3000 servo controller family; purchased software.

http://literature.rockwellautomation.com/idc/groups/literature/documents/um/2098-um001_-en-p.pdf

Of note, this servo, Ultra3000 #2098-DSD-150, is to be discontinued in a few weeks, 12/31/2016.

http://www.rockwellautomation.com/global/solutions-services/capabilities/migration-solutions/product-search/results.page

Thank you for the info. I already have the Ultraware for the Ultra3000 drive. But, I do not have the  RSLogix5000. 

[kaiser_will 65]

I believe you can commission/program the Ultra3000 servo controller with Ultraware or RSLogix5000/Studio5000.  Ultraware is also used to program Ultra1500, Ultra5000 and Kinetix 3 servo controllers.  

If you have Ultra3000, and a serial cable, plug the servo controller into your PC.  Startup Ultra3000, select CANCEL to having a previous UDB file (unless you have one), Ultraware will scan the PC serial port for connected drives, select YES to running the setup wizard.

[motortest 0]

16 minutes ago, kaiser_will said:

I believe you can commission/program the Ultra3000 servo controller with Ultraware or RSLogix5000/Studio5000.  Ultraware is also used to program Ultra1500, Ultra5000 and Kinetix 3 servo controllers.  

If you have Ultra3000, and a serial cable, plug the servo controller into your PC.  Startup Ultra3000, select CANCEL to having a previous UDB file (unless you have one), Ultraware will scan the PC serial port for connected drives, select YES to running the setup wizard.

Thanks kaiser_will for your continuing advice. I used the Ultraware to commission the Ultra3000. With the Ultraware, I gave velocity command to rotate the motor MPL-A4540F-S. But the motor does not rotate with various tuning gains in the Tuning tab of the Ultraware. According to manual you referred, I may need RSLogix5000 which should be separately purchased. I am curious if 2098-DSD-150 and 2098-DSD-30 have different control gains and require different settings to rotate the same MPL motor. 

BTW, I also try the Autotuning which embedded in the Ultraware but the motor does not rotate the tuning failed.

[kaiser_will 65]

Ultra-series servo controllers can be a huge pain to tune.  I have only done a couple of times, but experienced similar non-robust performance.  

To tune an Ultra-series, make sure your servo motor is uncoupled from the load.  In some mechanical designs, this is not possible.

Follow this instruction.  Hopefully it is of good use.

I do not believe Studio5000 will provide different control ability than Ultraware.

https://www.machsupport.com/forum/index.php?action=dlattach;topic=21036.0;attach=30916

[motortest 0]

3 hours ago, kaiser_will said:

Ultra-series servo controllers can be a huge pain to tune.  I have only done a couple of times, but experienced similar non-robust performance.  

To tune an Ultra-series, make sure your servo motor is uncoupled from the load.  In some mechanical designs, this is not possible.

Follow this instruction.  Hopefully it is of good use.

I do not believe Studio5000 will provide different control ability than Ultraware.

https://www.machsupport.com/forum/index.php?action=dlattach;topic=21036.0;attach=30916

Thank you for the great comment!! Hope I can solve the issue.