Special Adjustment Functions; Function Block Diagram; Machine Resonance Suppression Filter - Mitsubishi Electric MR-J2S-A Instruction Manual

8. SPECIAL ADJUSTMENT FUNCTIONS

8. SPECIAL ADJUSTMENT FUNCTIONS
If a mechanical system has a natural resonance point, increasing the servo system response level 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.

8.1 Function block diagram

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

8.2 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 7.
Parameter
No.60
No.58
0
Machine resonance
suppression filter 2
00
1 or 2
Mechanical
system
response
level
Notch
depth
Notch frequency
WWW.NNC.IR
Parameter
No.59
00 Low-pass
filter
except
00
Machine resonance point
Frequency
Frequency
8 - 1
Current
Parameter
command
No.60
0
Servo
motor
Encoder
1