Mitsubishi Electric MELSERVO-J2S Series Transition Handbook page 136

Part 4: Review on Replacement of MR-J2S-_CP_/CL_ with MR-J4-_A_-RJ
MR-J2S-_CP_ or MR-J2S-_CL_
No. Name and function
19 Parameter writing inhibit
Used to select the reference range and writing range of
parameters.
20 Function selection 2
Used to select the slight vibration suppression control.
0 0 0
Slight vibration suppression control selection
0: Disabled
1: Enabled
22 Function selection 4
Used to select a stop method when LSP (Forward
rotation stroke end) and LSN (Reverse rotation stroke
end) are turned off.
0 0 0
Stop method when forward rotation stroke
end (LSP)/reverse rotation stroke end (LSN)
are turned off.
0: Sudden stop
1: Soft stop
23 Serial communication time-out selection
Used to select the time-out time of the communication
protocol.
Setting
value
0 Time-out check not carried out
Set the time-out check time
1 to 60
Check time = (setting value) [s]
24 Feed forward gain
Set the feed forward gain.
When the setting is 100%, the droop pulses during
operation at constant speed are nearly zero. However,
sudden acceleration/deceleration will increase the
overshoot. As a standard, when setting the feed forward
gain as 100%, set 1 s or more as the
acceleration/deceleration time constant up to the rated
speed.
25 Override offset
Used to set the offset voltage for the analog override.
Setting range: -999 to 999
26 Torque limit offset
Used to set the offset voltage of analog torque limit.
Setting range: -999 to 999
Description
Initial value
No.
CP CL
0000h 0000h PA19 Parameter writing inhibit
Used to select the reference range and writing
range of parameters.
In the positioning mode, set [Pr. PA19] to "0 0 A
B" in order to read or write the positioning control
parameter ([Pr. PT_ _ ]).
(It is possible to read or write "0 0 A B"：PA to
PF, PL, Po, PT.)
0000h 0000h PB24 Slight vibration suppression control
Used to select the slight vibration suppression
control.
0: Disabled
1: Enabled
To enable the slight vibration suppression control,
select "Manual mode (_ _ _ 3)" under "Gain
adjustment mode selection" in [Pr. PA08]. Slight
vibration suppression control cannot be used in
the speed control mode.
Set the same value as for MR-J2S-_CP_.
0000h 0000h PD30 Function selection D-1
0 0 0
Set the same value as for MR-J2S-_CP_.
0 0 PF04 RS-422 communication time-out selection
(Supported version: A3 version or later)
Used to select the time-out time of the
communication protocol.
Setting
value
0
1 to 60
0 0 PB04 Feed forward gain
Set the feed forward gain.
Set the same value as for MR-J2S-_CP_.
0 0 PC37 Analog override offset
Set the offset voltage of the VC (Override input).
Automatic setting is made by the VC automatic
offset.
Setting range: -9999 to 9999
0 0 PC38 Analog torque limit offset
Used to set the offset voltage of TLA (Analog
torque limit).
Setting range: -9999 to 9999
4 - 27
MR-J4-_A_-RJ
Name and function
Stop method when LSP(forward
rotation stroke end)/LSN(reverse
rotation stroke end) are turned off.
0: Sudden stop
1: Soft stop
Description
Time-out check not carried out
Set the time-out check time
Check time = (setting value) [s]
Initial
value
00AAh
0000h
0000h
0
[s]
0
0
0