Mitsubishi Electric MELSERVO MR-J4-A-RJ Series, Instruction Manual

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5. HOW TO USE THE PROGRAM
5 - 14
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 Description
SPN (500) Servo motor speed 500 [r/min] a)
Disabled
Disabled
STA (200) Acceleration time constant 200 [ms] b)
STB (300) Deceleration time constant 300 [ms] c)
MOV (500) Absolute value travel command 500 [×10
STM
μ m] d)
SPN (1000) Servo motor speed 1000 [r/min] e)
STC (500) Acceleration/deceleration time
constant 500 [ms] f)
MOVA (1000) Absolute value continuous travel
command 1000 [×10
STM
μ m] g)
SPN (1500) Servo motor speed 1500 [r/min] h)
STC (100) Acceleration/deceleration time
constant 100 [ms] i)
MOVA (0) Absolute value continuous travel
command 0 [×10
STM
μ m] j)
STOP Program stop
0 r/min Servo motor speed
Forward
rotation
Reverse
rotation
b) Acceleration time constant
(200 ms)
a) Servo motor speed
(500 r/min)
e) Servo motor
speed
(1000 r/min)
c) Deceleration time constant
(300 ms)
h) Servo motor
speed
(1500 r/min)
j) Absolute value continuous
travel command
g) Absolute value
continuous travel
command
(1000 × 10
STM μ
m)
d) Absolute value
travel command
(500 × 10
STM μ
m)
b) Acceleration time constant
(200 ms)