Special Adjustment Functions; Function Block Diagram; Machine Resonance Suppression Filter - Mitsubishi Electric MELSERVO-J2-Super Series Instruction Manual

10. SPECIAL ADJUSTMENT

10. SPECIAL ADJUSTMENT FUNCTIONS

If a mechanical system has a natural resonance point, increasing the servo system response may cause
the mechanical system to produce resonance (vibration or unusual noise) at that resonance frequency.
Using the machine resonance suppression filter and adaptive vibration suppression control functions can
suppress the resonance of the mechanical system.

10.1 Function block diagram

Speed
control
00
Machine resonance
suppression filter 1
Adaptive vibration
suppression control

10.2 Machine resonance suppression filter

(1) Function
The machine resonance suppression filter is a filter function (notch filter) which decreases the gain of
the specific frequency to suppress the resonance of the mechanical system. You can set the gain
decreasing frequency (notch frequency) and gain decreasing depth.
POINT
The functions given in this chapter need not be used generally. Use them
if you are not satisfied with the machine status after making adjustment
in the methods in Chapter 9.
Parameter Parameter
No.61 No.63
0
00
except
1 or 2
Mechanical
system
response
Notch
depth
Parameter
No.62
00
Machine resonance
suppression filter 2
except
Machine resonance point
Frequency
Frequency
Notch frequency
10 - 1
Parameter
No.63
0
Low-pass
filter
1
00
Current
command
Servo
motor
Encoder