Mitsubishi Electric MELSERVO-JN Series, Инструкция по эксплуатации

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13. POSITIONING MODE
3) Program example 3
Use of an S-pattern acceleration/deceleration time constant allows sudden operation to be eased at
the time of acceleration/deceleration. When the "STD" command is used, parameter No. PC03 (S-
pattern acceleration/deceleration time constant) is ignored.
Program Description
SPN(1000)
STC(100)
STD(10)
MOV(2000)
STOP Speed (Motor speed)
Acceleration/deceleration time constant
S-pattern acceleration/deceleration time constant
Absolute move command
Program end 1000[r/min]
1000[ms]
10[ms]
2000[×10
STM μm]
a)
b)
c)
d)
0r/min
c) S-pattern acceleration/
deceleration time constant
c)
d) Absolute move
command
(2000 10
STM
m)
b) Acceleration/deceleration
time constant
(1000ms)
Servo motor
speed
Forward
rotation
b) Acceleration/deceleration
time constant
(1000ms)
a) Servo motor speed
(1000r/min)
c) c)
(b) Continuous move command (MOVA, MOVIA)
POINT
"MOV" cannot be used with "MOVIA", and "MOVI" cannot be used with
"MOVA".
The "MOVA" command is a continuous move command for the "MOV" command. After execution of the
movement by the "MOV" command, the movement of the "MOVA" command can be executed
continuously without a stop.
The speed changing point of the "MOVA" command is the deceleration starting position of the operation
performed by the preceding "MOV" and "MOVA" commands.
The acceleration/deceleration time constant of the "MOVA" command is the value at execution of the
preceding "MOV" command.
The "MOVIA" command is a continuous move command for the "MOVI" command. After execution of
the movement by the "MOVI" command, the movement of the "MOVIA" command can be executed
continuously without a stop.
The speed changing point of the "MOVIA" command is the deceleration starting position of the
operation performed by the preceding "MOVI" and "MOVIA" commands.
The acceleration/deceleration time constant of the "MOVIA" command is the value at execution of the
preceding "MOVI" command.
Command Name Setting Unit Description
MOV Absolute move command MOV (Setting value) ×10 STM μm Absolute move command
MOVA Absolute continuous move command MOVA (Setting value) ×10
STM
μm Absolute continuous move command
MOVI Incremental move command MOVI (Setting value) ×10
STM
μm Incremental move command
MOVIA
Incremental continuous move
command
MOVIA (Setting value) ×10 STM μm
Incremental continuous move
command