S-Pattern Acceleration/Deceleration Time Constant [A] - Mitsubishi Electric MR-J5 Series User Manual

S-pattern acceleration/deceleration time constant [A]

Setting S-pattern acceleration/deceleration time constant enables smooth start/stop of the servo motor.
This function is enabled when [Pr. PC03 S-pattern acceleration/deceleration time constants] is set.
Servo motor speed
Speed
command
0 r/min
(0 mm/s)
Speed
acceleration
time constant
S-pattern acceleration/
deceleration time constant
• This can be used in the speed control mode and the torque control mode.
• This function is disabled when [Pr. PC03 S-pattern acceleration/deceleration time constants] is set to "0".
Precautions
• If the setting of acceleration/deceleration time constant is long, the timing error may occur on the arc part against the setting
of the S-pattern acceleration deceleration time constant.
• If the S-pattern acceleration/deceleration time constant is set longer than the constant speed time, the speed may not reach
the command speed.
• The upper time limit on the arc part of the S-pattern acceleration/deceleration is limited by the setting value of the speed
acceleration/deceleration time constants. For details, refer to [Pr. PC03 S-pattern acceleration/deceleration time constants].
Setting method
Servo Symbol
parameter
PC03 STC
Time
Speed
deceleration
time constant
S-pattern acceleration/
deceleration time constant
Name
S-pattern acceleration/deceleration time constant
Outline
Set the S-pattern acceleration/deceleration time constant.
Initial value: 0 [ms]
3 BASIC FUNCTION
3.16 Acceleration/deceleration function
3
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