Hello everyone, I am working on a project regarding control over a servo motor. However I am noticing an error that I am not able to fix on my own.
I have provided the VI and a picture of what happens when I run the VI on a Dynamixel RX-64 (same result for an AX-18F/AX-12).
When I first start the VI, the servo responds well and moves through the correct positions. However, the issues arises when I press the stop, and wait for
the VI to start again to send signals to the Servo. This is what happens: the VI starts sending signals too quickly andtheservowillstartrushing (too fast)
throughafewdatapoints, andthenwill gotonormalspeedaftersometime.
In the Servo_Error.jpg, you see at the beginning the servo responds well, and after that, I pressed "Stop", then the VI re-initializes communication and
starts sending signals too quickly which the servo can't reach. After a few seconds, the signal speed is stabilized, and everything goes back to normal.
I have tried the following:
- instead of using Dynamixel LabVIEW VIs, I have tried using Robotis' own library. I had the same problems (for links look at the bottom of this message).
- adding "wait" upon initializing and closing, as well as inside the for loop. I had the same problems.
- tried using VISA Clear, and VISA Flush Buffer. I had the same problems.
- Tried to write an "end" position (ie set position to 0degrees), after for loop finished but before closing communication. I had the same problems.
-I have tried playing with the "Simulate Signal" timing options but nothing.
I also have more off topic question: why is the "Simulate Signal" default timing option set as: "run as fast as possible"?
Thank you for any help provided!
Alex
Dynamixel LabVIEW VIs can be found at: http://sine.ni.com/apps/utf8/niid_web_display.download_page?p_id_guid=86E2A39663C26077E04400144FB7D2...
Dynamixel Robotis Library can be found at: http://support.robotis.com/en/software/dynamixel_sdk/usb2dynamixel/usb2dxl_windows.htm
