[Pr. Pc03_S-Pattern Acceleration/Deceleration Time Constants (Stc)]; [Pr. Pc04_Torque Command Time Constant (Tqc)] - Mitsubishi Electric MELSERVO-J5 Series User Manual

[Pr. PC03_S-pattern acceleration/deceleration time constants
(STC)]
Initial value
0 [ms]
Set the time of the arc part for S-pattern acceleration/deceleration.
By setting "0", linear acceleration/deceleration is performed.
Speed
command
Servo
motor
speed
0 r/min
(0 mm/s)
STC STC
STA
STA: Acceleration time constant ([Pr. PC01])
STB: Deceleration time constant ([Pr. PC02])
STC: S-pattern acceleration/deceleration time constant ([Pr. PC03])
If a large value is set to STA (acceleration time constant) or STB (deceleration time constant), the actual operation time for the
arc part may differ from the setting value of the S-pattern acceleration deceleration time constant.
The upper limit value of the actual time for the arc part is limited by
2000000
at acceleration and at deceleration
STA
Ex.
At the setting of STA = 20000, STB = 5000 and STC = 200, the actual time for the arc part is as follows:
During acceleration: 100 ms
2000000
= 100 [ms] < 200 [ms]
20000
Therefore, the time is limited to 100 [ms].
During deceleration: 200 ms
2000000
= 400 [ms] > 200 [ms]
5000
Therefore, it will be 200 [ms] as set.

[Pr. PC04_Torque command time constant (TQC)]

Initial value
0 [ms]
Set the time constant of a primary delay filter for the torque command (or thrust command).
Torque command (or thrust command)
Torque
(thrust)
TQC
TQC: Torque command time constant
Setting range
0 to 5000
Time
STC STC
STB
2000000
.
STB
Setting range
0 to 50000
After filtering
Time
TQC
Ver.
A0
Ver.
A0
1 SERVO PARAMETER DETAILS
1.4 Extension setting servo parameters group ([Pr. PC_ _ ])
1
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