Mitsubishi Electric MELSERVO-J2S Series Transition Handbook page 55

Part 2: Review on Replacement of MR-J2S-_A_ with MR-J4-_A_
MR-J2S-_A_
No. Name and function
13 S-pattern acceleration/deceleration time constant
This is used to smooth start/stop of the servo motor.
Set the time of the arc part for S-pattern
acceleration/deceleration.
Speed
command
0r/min
STC STC
STA
STA: Acceleration time constant ([Pr. 11])
STB: Deceleration time constant ([Pr. 12])
STC: S-pattern acceleration/deceleration time constant
([Pr. 13])
If STA (acceleration time constant) or STB (deceleration
time constant) is set to be longer, an error may occur in
the time of the arc part for the S-pattern
acceleration/deceleration time constant setting.
The upper limit value of the actual arc part time is limited
2000000
by for acceleration or by
STA
deceleration.
(Example) When STA, STB, and STC are set to 20000,
5000, and 200, respectively, the actual arc
part time is as follows.
Because of
At time of
100 [ms]
acceleration:
200 [ms],it is limited to 100 [ms].
Because of
At time of
200 [ms]
acceleration:
200 [ms], it becomes 200 [ms] as
designed.
14 Torque command time constant
This is used to set the constant of a primary delay to the
torque command.
Torque command
Torque
TQC
TQC: Torque command time constant
15 Station number setting
Specifies the station No. of serial communication.
Always set one station to one axis of the servo amplifier.
Setting one station number to two or more stations will
disable a normal communication.
Initial
value
0
time
STC STC
STB
2000000
for
STB
2000000
= 100 [ms] <
20000
2000000
= 400 [ms] >
5000
0
After filtering
TQC Time
0
MR-J4-_A_
No. Name and function
PC03 S-pattern acceleration/deceleration time constant
This is used to smooth start/stop of the servo motor.
Set the time of the arc part for S-pattern
acceleration/deceleration.
Set the same value as for MR-J2S-_A_.
PC04 Torque command time constant
This is used to set the constant of a primary delay to
the torque command.
Set the same value as for MR-J2S-_A_.
PC20 Station number setting
Used to set the station No. of the servo amplifier.
Setting range: 0 to 31
2 - 24
Control
Initial
mode
value
0 S
T
0 T
0 P
S
T