Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 221

5. HOW TO USE THE PROGRAM
2) Program example 2 (Incorrect usage)
For continuous operations, the acceleration time constant and the deceleration time constant
cannot be changed at each change of the servo motor speed. Therefore, even if you insert an
"STA", "STB", or "STD" command at a speed change, the command is invalid.
Command
SPN (500)
STA (200)
STB (300)
MOV (500)
SPN (1000)
STC (500)
MOVA (1000)
SPN (1500)
STC (100)
MOVA (0)
STOP
Forward rotation
Servo motor
0 r/min
speed
Reverse rotation
Servo motor speed
Acceleration time constant
Deceleration time constant
Absolute value travel command
Servo motor speed
Acceleration/deceleration time
constant
Absolute value continuous travel
command
Servo motor speed
Acceleration/deceleration time
constant
Absolute value continuous travel
command
Program stop
b) Acceleration time constant
(200 ms)
a) Servo motor speed
(500 r/min)
d) Absolute value
travel command
STM μm)
(500 × 10
b) Acceleration time constant
(200 ms)
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Description
500 [r/min]
200 [ms]
300 [ms]
STM
μm]
500 [×10
1000 [r/min]
500 [ms]
STM
μm]
1000 [×10
1500 [r/min]
100 [ms]
STM
μm]
0 [×10
c) Deceleration time constant
(300 ms)
e) Servo motor
speed
(1000 r/min)
g) Absolute value
continuous travel
command
h) Servo motor
STM μm)
(1000 × 10 speed
(1500 r/min)
5 - 14
a)
b)
c)
d)
e)
f)
Disabled
g)
Disabled
h)
i)
j)
j) Absolute value continuous
travel command
STM μm)
(0 × 10