Drive Tuning D2 Series Servo Drive User Manual
6-28 HIWIN MIKROSYSTEM CORP.
Velocity loop gain (vpg)
The velocity loop gain (vpg) is an internal control parameter of D2 drive. Normally, the initial value is
calculated by parameters set in the configuration center. This value is not to be modified under the
normal case. However, it can be re-adjusted by using “Freq analyzer”.
Step 1: Click the “Freq analyzer” button to appear the window of figure 6.6.3.2.
Figure6.6.3.2
Step 2: Click the “Enable” button.
Step 3: Click the “Run” button to start the frequency analyzer. The motor will be in the
low-frequency vibration and then gradually issue a high-frequency sound. After it is
completed, a frequency response will be drawn on the window, as shown in figure 6.6.3.3.
Figure6.6.3.3
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