Mitsubishi Electric MELSERVO-J4 MR-J4 TM Instruction Manual page 187

5. PARAMETERS
No./ Setting
symbol/name digit
PT49 Set an acceleration time from 0 r/min or 0 mm/s to the rated speed for the command.
STA
Acceleration
time constant
For example for the servo motor of 3000 r/min rated speed, set 3000 (3 s) to
increase speed from 0 r/min to 1000 r/min in 1 s.
This parameter corresponds to "Profile acceleration (6083h)". When mapped using
PDO, it may not be written with MR Configurator2.
Setting range: 0 to 50000
PT50 Set a deceleration time from the rated speed to 0 r/min or 0 mm/s for the command.
STB
Deceleration
time constant
This parameter corresponds to "Profile deceleration (6084h)". When mapped using
PDO, it may not be written with MR Configurator2.
Setting range: 0 to 50000
Profile mode
Set an acceleration time constant for the position mode and velocity mode. Setting
a value exceeding 20000 ms in the position mode will trigger [AL. F4].
Servo motor speed
Rated
speed
0 r/min
(0 mm/s)
[Pr. PT49] setting
Profile mode
Set a deceleration time constant for the position mode and velocity mode. Setting
a value exceeding 20000 ms in the position mode will trigger [AL. F4].
Function
If the preset speed command is lower
than the rated speed, acceleration/
deceleration time will be shorter.
Time
[Pr. PT50] setting
5 - 66
Initial
value
[unit]
0
[ms]
0
[ms]