7-31
7-5 Manual Tuning
7
Adjustment Functions
Devices that have a resonance
point that changes due to
individual differences and age
deterioration
Devices that have a resonance
point with a frequency that does
not change
Instantaneous Suppression
Tracking the Resonance Point
Torque
command
Automatic frequency
tracking
Width
Adaptive filter
Notch filter
Toque filter
Cut-off frequency
Suppression of Large Resonance
Point with a Frequency that Does
not Change
Lowering All Resonance Peaks
in a High Frequency Range
Torque command
after filter
f
f
-
3dB
Notch Filter Characteristics
Gain
Gain
Notch Filter Characteristics
Gain
Gain
Gain
Machine characteristics at resonance
Machine characteristics at resonance
Anti-resonance
Resonance
Anti-resonance
Anti-resonance
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Fre-
quency
Adjust a bit lower (approx. 0.9 f).
Notch
Torque command filter characteristics
Torque Command Filter
No more
resonance
peak
Cut-off frequency
Resonance
peak falls.
Examples of applicable devices
Speed response
Devices that have a resonance
peak in a frequency range
separated from the speed
response
-
3dB
Summary of Contents for R88D-GT series
Page 20: ...18 Table of Contents ...
Page 234: ...3 133 3 8 Reactor Specifications 3 Specifications ...
Page 448: ...7 37 7 5 Manual Tuning 7 Adjustment Functions ...
Page 474: ...8 25 8 5 Periodic Maintenance 8 Troubleshooting ...
Page 475: ...Chapter 9 Appendix 9 1 Connection Examples 9 1 9 2 Parameter Tables 9 11 ...
Page 509: ......