TECO JSDG2S-75B-E - Page 318

6-7

󰇛
SpeedLoopIntegrationTimeConstant1
󰇜
5
1
2
󰇛
SpeedLoopGain1
󰇜









ST
1
1K
i
v
Setting Example:
If
Cn025
(Load Inertia Ratio) is set correctly, and expect the Speed Loop Bandwidth reaches
100Hz, then set

󰇛
SpeedLoopGain1
󰇜
 100󰇛Hz󰇜

󰇛
SpeedLoopIntegrationTimeConstant1
󰇜
5
1
2π100
8ms
 800󰇛0.01ms󰇜
Position Loop Gain Pn310 or Pn311
Position loop gain directly determines the response speed of position loop. As long as the
mechanical system does not generate vibration or noise, the addition of position loop gain value can
expedite response speed and shorten positioning time.
PositionLoopGain  2π
SpeedLoopGain
5
Position Loop Feed Forward Gain Pn312
The use of the Position Loop Feed Forward Gain can speed up the response speed; if the feed
forward gain is too large, it may cause speed overshoot and the Output Contact
INP
(Positioning
Completion Signal) turns on and off repeatedly. Therefore, the speed waveform and Output Contact
INP
(Positioning Completion Signal) must be observed during adjusting and slowly increase the Feed
Forward Gain Value. When the Position Loop Gain is too large, the effect of the Feed Forward
Function is not obvious.
p
K
pff
K