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MDS-D-SVJ3/SPJ3 Series Instruction Manual
3-2 Setting the initial parameters for the servo drive unit
【#2206】 SV006 VGN2 Speed loop gain 2
Set the speed loop gain at the motor limitation speed VLMT (maximum rotation speed x 1.15) with
"VCS(SV029: Speed at the change of speed loop gain)".
Use this to suppress noise at high speed rotation during rapid traverse, etc. Then, the speed loop
gain decreases at faster speed than the setting value of VCS.
When not using, set to "0".
---Setting range---
-1000 to 9999
【#2207】 SV007 VIL Speed loop delay compensation
Set this when the limit cycle occurs in the full-closed loop, or overshooting occurs in positioning.
The speed loop delay compensation method can be selected with SV027/bit1,0.
Normally, use "Changeover type 2". Changeover type 2 controls the occurrence of overshooting by
lowering the speed loop lead compensation after the position droop gets 0.
When setting this parameter, make sure to set the torque offset (SV032).
---Setting range---
0 to 32767
【#2208】 SV008 VIA Speed loop lead compensation
Set the gain of the speed loop integral control.
Standard setting: 1364
Standard setting in the SHG control: 1900
Adjust the value by increasing/decreasing this by about 100 at a time.
Raise this value to improve contour tracking accuracy in high-speed cutting.
Lower this value when the position droop does not stabilize (when the vibration of 10 to 20Hz
occurs).
---Setting range---
1 to 9999
【#2209】 SV009 IQA Current loop q axis lead compensation
Set the fixed value of each motor.
Set the standard value for each motor described in the standard parameter list.
---Setting range---
1 to 20480
【#2210】 SV010 IDA Current loop d axis lead compensation
Set the fixed value of each motor.
Set the standard value for each motor described in the standard parameter list.
---Setting range---
1 to 20480
VGN1
VGN2
VCS
VLMT
Gain
Speed
(Overspeed detection speed)