Mitsubishi Electric MELSERVO-J3 Series Handbook page 126

Part 3: Review on Replacement of MR-J3-_B_ with MR-J4-_B_
No. Name and function
PB23 Low-pass filter selection
Select the low-pass filter.
0 0 x 0:
Low-pass filter selection
0: Automatic setting
1: Manual setting ([Pr. PB18] setting)
When automatic setting has been selected, select the
filter that has the band width close to the one calculated
VG2 10
with [rad/s]
1 + GD2
PB24 Slight vibration suppression control selection
Select the slight vibration suppression control and PI-PID
change.
When [Pr. PA08] (auto tuning mode) is set to "_ _ _ 3",
the slight vibration suppression control is made valid.
(Slight vibration suppression control cannot be used in
the speed control mode.)
0 0 _ x:
Slight vibration suppression control selection
0: Invalid
1: Valid
0 0 x _ :
PI-PID control switch over selection
0: PI control is valid. (Switching to PID control is possible
with instructions of controller.)
3: PID control is always valid.
MR-J3-_B_
Initial
No.
value
0000h PB23
Same setting as MR-J3
Low-pass filter selection
Select the shaft resonance suppression filter and low-
pass filter.
_ _ _ x:
Shaft resonance suppression filter selection
0: Automatic setting
1: Manual setting
2: Disabled
When you select "Enabled (_ _ _ 1)" of "Machine
resonance suppression filter 4 selection" in [Pr. PB49],
the shaft resonance suppression filter is not available.
_ _ x _ :
Low-pass filter selection
0: Automatic setting
1: Manual setting
2: Disabled
_ x _ _ :
For manufacturer setting
x _ _ _ :
For manufacturer setting
0000h PB24
Same as MR-J3
Slight vibration suppression control
Select the slight vibration suppression control and PI-PID
switching control.
_ _ _ x:
Slight vibration suppression control selection
0: Disabled
1: Enabled
To enable the slight vibration suppression control, select
"Manual mode (_ _ _ 3)" of "Gain adjustment mode
selection" in [Pr. PA08]. Slight vibration suppression
control cannot be used in the speed control mode.
_ _ x _ :
PI-PID switching control selection
0: PI control enabled
(Switching to PID control is possible with commands
of servo system controller.)
3: Continuous PID control enabled
If the servo motor at a stop is rotated even one pulse
due to any external factor, it generates torque to
compensate for a position shift. When the servo motor
shaft is to be locked mechanically after positioning
completion (stop), enabling PID control and
completing positioning simultaneously will suppress
the unnecessary torque generated to compensate for
a position shift.
_ x _ _ :
For manufacturer setting
x _ _ _ :
For manufacturer setting
3 - 29
MR-J4-_B_
Name and function
Initial
value
0h
0h
0h
0h
0h
0h
0h
0h