SMC Networks LECSB2-T Series - Page 652

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16. POSITIONING MODE
3) Program example 3
Using the S-pattern acceleration/deceleration time constants reduces abrupt movements at
acceleration or deceleration. When the "STD" command is used, [Pr. PC03 S-pattern
acceleration/deceleration time constant] does not function.
Command
Description
SPN (1000)
Servo motor speed
1000 [r/min]
a)
STC (100)
Acceleration/deceleration time
constant
1000 [ms]
b)
STD (10)
S-pattern acceleration/deceleration
time constant
10 [ms]
c)
MOV (2000)
Absolute value travel command
2000 [×10
STM
μm]
d)
STOP
Program stop
c) c)
c)
a) Servo motor speed
(1000 r/min)
b) Acceleration/deceleration
time constant (1000 ms)
b) Acceleration/deceleration
time constant (1000 ms)
d) Absolute value travel command
(2000 × 10
STM
μm)
c) S-pattern acceleration/
deceleration time constant
(10 ms)
Servo motor
speed
Forward rotation
0 r/min
Reverse rotation