7. SPECIAL ADJUSTMENT FUNCTIONS 
7 -  1 
 
7. SPECIAL ADJUSTMENT FUNCTIONS 
POINT 
 
The functions given in this chapter need not be used normally. Use them if you 
are not satisfied with the machine status after making adjustment in the methods 
in chapter 6. 
When you use a linear servo motor, replace the following left words to the right 
words. 
Load to motor inertia ratio  → Load to motor mass ratio 
Torque  → Thrust 
(Servo motor) speed  → (Linear servo motor) speed 
 
 
7.1 Filter setting 
The following filters are available with MR-J4 servo amplifiers. 
Command
pulse train
Command
filter
Low-pass
filter
setting
Encoder
Servo motor
PWM
M
Load
[Pr. PB18]
+
-
Machine
resonance
suppression
filter 1
[Pr. PB13] [Pr. PB15] [Pr. PB46]
Machine
resonance
suppression
filter 2
Machine
resonance
suppression
filter 3
Machine
resonance
suppression
filter 4
Machine
resonance
suppression
filter 5
Shaft
resonance
suppression
filter
Robust filter
[Pr. PB48]
[Pr. PB50]
[Pr. PB17]
Speed
control
[Pr. PB49] [Pr. PE41]