Mitsubishi Electric MELSERVO-J4 Series Transition Handbook page 84

Part 2: Review on Replacement of MR-J3-_A_ with MR-J4-_A_
MR-J3-_A_
No.
Name and function
Function selection C-2
PC23
Select the servo lock at speed control mode stop,
the VC-VLA voltage averaging, and the speed limit
in torque control mode.
0 0 0 x:
Selection of servo lock at stop In the speed control
mode, the servo motor shaft can be locked to
prevent the shaft from being moved by the external
force.
0: Valid (Servo-locked)
The operation to maintain the stop position is
performed.
1: Invalid (Not servo-locked)
The stop position is not maintained.
The control to make the speed 0 r/min is
performed.
0 x 0 0:
VC/VLA voltage averaging
Used to set the filtering time when the analog speed
command (VC) voltage or analog speed limit (VLA)
is imported.
Set 0 to vary the speed to voltage fluctuation in real
time. Increase the set value to vary the speed
slower to voltage fluctuation.
Set value
0
1
2
3
4
5
x 0 0 0:
Selection of speed limit for torque control
0: Valid
1: Invalid
Do not use this function except when configuring a
speed loop externally.
If the speed limit is invalid, the following parameters
can be used.
[Pr. PB01] (Adaptive tuning mode (Adaptive filter ))
[Pr. PB13] (machine resonance suppression filter 1)
[Pr. PB14] (notch shape selection 1)
[Pr. PB15] (machine resonance suppression filter 2)
[Pr. PB16] (notch shape selection 2)
Function selection C-3
PC24
Select the unit of the in-position range
0 0 0 x:
In-position range unit selection
0: Command input pulse unit
1: Servo motor encoder pulse unit
0000h
Filtering time [ms]
0
0.444
0.888
1.777
3.555
7.111
0000h
Initial
No.
value
PC23
Same as MR-J3
Function selection C-2
_ _ _ x:
Servo-lock selection at speed control stop
Select the servo-lock selection at speed control
stop.
In the speed control mode, the servo motor shaft
can be locked to prevent the shaft from being moved
by an external force.
0: Enabled (servo-lock)
The operation to maintain the stop position is
performed.
1: Disabled (no servo-lock)
The stop position is not maintained.
The control to make the speed 0 r/min is
performed.
_ _ x _ :
For manufacturer setting
_ x _ _:
VC/VLA voltage averaging selection
Select the VC/VLA voltage average.
Set the filtering time when VC (Analog speed
command) or VLA (Analog speed limit) is imported.
Set 0 to vary the speed to voltage fluctuation in real
time. Increase the set value to vary the speed
slower to voltage fluctuation.
Setting value
0
1
2
3
4
5
x _ _ _:
Speed limit selection at torque control
Select the speed limit selection at torque control.
0: Enabled
1: Disabled
Do not use this function except when configuring an
external speed loop.
Function selection C-3
PC24
In-position range unit selection
_ _ _ x:
Select a unit of in-position range.
0: Command input pulse unit
1: Servo motor encoder pulse unit
_ _ x _:
For manufacturer setting
_ x _ _:
For manufacturer setting
x _ _ _:
Error excessive alarm/error excessive warning level
unit selection
Select units for error excessive alarm level setting
with [Pr. PC43] and for error excessive warning level
setting with [Pr. PC73].
0: Per 1 rev
1: Per 0.1 rev
2: Per 0.01 rev
3: Per 0.001 rev
2 - 49
MR-J4-_A_
Name and function
Filtering time [ms]
0
0.444
0.888
1.777
3.555
7.111
Control
Initial
mode
value
S
0h
0h
S
0h
T
T
0h
0h P
0h
0h
P
0h