Delta servo drive from LabVIEW serial port

[Kimwoo35]

Hi. 

I want to send position command to detla motor drive asd-B3 series. and want to read feedback for logging at 20ms interval. drive has mini usb port which can be connected directly to pc without any card. 

Regards

[santo_13]

With my 5-minute read through their 1000+ page user manual, they have not exposed the commands to control the servo drive using the USB-port. You may have to use the PROFINET or MODBUS to control it.

[RIObotics]

Hi Kimwoo,

For Delta ASD-B3 drives, it's possible to use RS-485 or Modbus to communicate with the drive from LabVIEW, but you'll have to do some software development.  You can search the forum for some examples.  

However, some users may find modbus too slow or difficult to use.   Our company has a simple "one-cable solution" for LabVIEW users to control popular servo drives (such as Delta, Yaskawa, Mitsubishi, etc.)  Here's a demo video: https://youtu.be/vVT29MvLhtE.  This would give you full control over your Delta ASD-B3 drives without any problems.

BR

John

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[Kimwoo35]

Advantage of servo motors includes its feedback encoder. So how we can save fole at high sample rate for logging. 

[summerseducation701]

I am working on same problem but my task is 10ms using mini usb port if you have any update on delta's servo drive project kindly let me know

[summerseducation701]

Are you sure as i am also working on same project i have to build a GUI which can take data from servo motors there speed torque and position using mini USB port. I am currently at  starting phase kindly let me know is it possible to take encoders data from mini usb port.

[rolfk]

The Modbus through RS-485 (or CAN-Bus) communication (aside of CANOpen, EtherCAT, and Profinet, but I'm sure that violates your aim to not have to use any additional hardware besides an USB cable even more) is the only way Delta documents how to communicate with their drives from a third party application. The USB mini port is reserved for use with their own software. If you need higher sampling rate than what the serial port through Modbus allows, you will either have to look into using CAN, which should go a little higher, or use the analog IO on the CN1 connector.

Of course you can also try to contact technical support at Delta and try to get their protocol documentation for the USB mini port, but it is unlikely you even will get an answer, and if you do it will be negative unless you can guarantee them to sell a few thousand or more of those drives to you if they tell you, and also are willing to forsake your first born and house if you should violate the non-disclosure agreement that they make you sign before.

[summerseducation701]

Thank you Sir i have shifted to modbus RS485 for communication i have Delta ASD-B3-0721-L model which supports only modbus RS485