Mitsubishi Electric MR-J4, Instruction Manual

Page: 237 / 794

5. PARAMETERS
5 - 38
No./symbol/
name
Setting
digit
Function
Initial
value
[unit]
Control
mode
P S T
PC03
STC
S-pattern
acceleration/
deceleration
time constant Start/stop the servo motor or linear servo motor smoothly.
Set the time of the arc part for S-pattern acceleration/deceleration.
Speed command
Ser
vo motor speed
0 r/min
STA
STC
Time
STC
STB
STC STC
(L
inear
ser
vo
motor
speed)
(0 mm/s)
STA: Acceleration time constant ([Pr. PC01])
STB: Deceleration time constant ([Pr. PC02])
STC: S-pattern acceleration/deceleration time constant ([Pr. PC03])
Long setting of STA (acceleration time constant) or STB (deceleration time constant)
may produce an error in the time of the arc part for the setting of the S-pattern
acceleration/deceleration time constant.
The upper limit value of the actual arc part time is limited by
2000000
STA
for acceleration or by
2000000
STB
for deceleration.
(Example) At the setting of STA 20000, STB 5000 and STC 200, the actual arc part
times are as follows.
Acceleration: 100 ms
2000000
20000
= 100 [ms] < 200 [ms]
Therefore, it will be limited to 100 ms.
Deceleration: 200 ms
2000000
5000
= 400 [ms] > 200 [ms]
Therefore, it will be 200 ms as you set.
Setting range: 0 to 5000
0
[ms]
PC04
TQC
Torque/thrust
command
time constant Set the constant of a primary delay filter for the torque/thrust command.
TQC TQC
Time
Torque
Torque command (Thrust command)
After filtering
(Thrust)
TQC: Torque/thrust command time constant
Setting range: 0 to 50000
0
[ms]
PC05
SC1
Internal
speed
command 1
Internal
speed limit 1 Set the speed 1 of internal speed commands.
Setting range: 0 to permissible instantaneous speed 100
[r/min]/
[mm/s]
Set the speed 1 of internal speed limits.
Setting range: 0 to permissible instantaneous speed