Speed Detection Method Selection; Speed Feedback Filter - YASKAWA SGD7C-***AMAA*** Product Manual

8.12 Additional Adjustment Function

8.12.6 Speed Detection Method Selection

8.12.6 Speed Detection Method Selection

You can use the speed detection method selection to ensure smooth Servomotor speed
changes during operation. To ensure smooth motor speed changes during operation, set
Pn009 to n.
With a Linear Servomotor, you can reduce the noise level of the running motor when the linear
encoder scale pitch is large.
Pn009
Important

8.12.7 Speed Feedback Filter

You can set a first order lag filter for the speed feedback in the speed loop. This ensures
smooth changes in the feedback speed to reduce vibration. If a large value is set, it will
increase the delay and make response slower.
Pn308
8-72
 
1 (Use speed detection 2).
Parameter
 
n. 0
Use speed detection 1.
(default setting)
 
n. 1 Use speed detection 2.
If the speed detection method is changed, the response characteristic of the speed loop will also
change. Servo tuning must therefore be performed again.
Speed Feedback Filter Time Constant
Setting Range Setting Unit
0 to 65,535 (0.00
ms to 655.35 ms)
Meaning
Default Setting
0
0.01 ms
(0.00 ms)
When Enabled Classification
After restart Tuning
peed Po ition
When Enabled Classification
Immediately Setup