Mitsubishi Electric MELSERVO-J4 Series Transition Handbook page 337

Part 6: Review on Replacement of MR-J3-_T_(DIO command/ Serial communication operation) with MR-J4-_A_-RJ
MR-J3-_T_
No. Name and function
PB17 Automatic setting parameter
The value of this parameter is set according to a set
value of [Pr. PB06] (Ratio of load inertia moment to servo
motor inertia moment).
PB18 Low-pass filter setting
Set the low-pass filter.
Setting [Pr. PB23] (low-pass filter selection) to "_ _ 0 _"
automatically changes this parameter.
When [Pr. PB23] is set to "_ _ 1 _", this parameter can
be set manually.
Initial
No.
value
PB17 Shaft resonance suppression filter
Set the shaft resonance suppression filter.
This is used to suppress a low-frequency machine vibration.
When "Shaft resonance suppression filter selection" is set to
"Automatic setting (_ _ _ 0)" in [Pr. PB23], the value will be
calculated automatically from the servo motor you use and load to
motor inertia ratio. Set manually for "Manual setting (_ _ _ 1)".
When "Shaft resonance suppression filter selection" is set to
"Disabled (_ _ _ 2)" in [Pr. PB23], the setting value of this
parameter will be disabled.
When "Machine resonance suppression filter 4 selection" is set to
"Enabled (_ _ _ 1)" in [Pr. PB49], the shaft resonance
suppression filter is not available.
_ _ x x:
Shaft resonance suppression filter setting frequency
selection
Refer to table 6.5 for settings.
Set the value closest to the frequency you need.
_ x _ _:
Notch depth selection
0: -40 dB
1: -14 dB
2: -8 dB
3: -4 dB
x _ _ _:
For manufacturer setting
Table 7.5 Shaft resonance suppression filter setting
Setting
value
_ _ 0 0
_ _ 0 1
_ _ 0 2
_ _ 0 3
_ _ 0 4
_ _ 0 5
_ _ 0 6
_ _ 0 7
_ _ 0 8
_ _ 0 9
_ _ 0 A
_ _ 0 B
_ _ 0 C
_ _ 0 D
_ _ 0 E
_ _ 0 F
3141 PB18 Low-pass filter setting
Set the low-pass filter.
The following shows a relation of a required parameter
to this parameter.
Setting range: 100 to 18000
[Pr. PB23]
_ _ 0 _ (Initial value)
6 - 58
MR-J4-_A_-RJ
Name and function
frequency selection
Frequency Frequency
Setting
value
[Hz]
Disabled _ _ 1 0
Disabled _ _ 1 1
4500 _ _ 1 2
3000 _ _ 1 3
2250 _ _ 1 4
1800 _ _ 1 5
1500 _ _ 1 6
1285 _ _ 1 7
1125 _ _ 1 8
1000 _ _ 1 9
900 _ _ 1 A
818 _ _ 1 B
750 _ _ 1 C
692 _ _ 1 D
642 _ _ 1 E
600 _ _ 1 F
[Pr. PB18]
Automatic setting
_ _ 1 _ Setting value enabled
_ _ 2 _ Setting value disabled
Initial
value
00h
0h
0h
[Hz]
562
529
500
473
450
428
409
391
375
360
346
333
321
310
300
290
3141