Mitsubishi MR-JE-100A, Instruction Manual

Page: 171 / 396

5. HOW TO USE THE PROGRAM
5 - 26
(i) Current position latch (LPOS)
POINT
When the current position is stored using LPS (Current position latch input), the
value varies depending on the servo motor speed at switch-on of LPS.
The program does not proceed to the next step until LPS (Current position latch
input) is switched on.
The stored data will not be cleared unless the servo amplifier is switched off.
After the input of LPS (Current position latch input) becomes enabled by the
"LPOS" command, the input is cleared in the following conditions.
When the rising edge of LPS (Current position latch input) is detected
When the program ends
When the operation mode is changed
When the servo motor forcibly stopped
When an alarm occurs
When the servo motor enters the servo-off status
The current position upon switch-on of LPS (Current position latch input) is stored. The stored
position data can be read with the communication function.
The current position latch function, which is set during the execution of the program, will be canceled
when the program ends. The function is also canceled with an operation mode change, forced stop,
alarm occurrence, or servo-off. The function will not be canceled by only a temporary stop.
Command Description
SPN (500) Servo motor speed 500 [r/min]
STA (200) Acceleration time constant 200 [ms]
STB (300) Deceleration time constant 300 [ms]
MOV (1000) Absolute value travel command 1000 [×10 STM μ m]
LPOS Set a current position latch. a)
STOP Program stop
Latches LPS on edge
by LPOS. (a))
1000
Servo motor
speed
ON
OFF
Current position
LPS (Latch input)
Current position 300 [×10
STM
μ
m]
is memorized.
Reverse rotation
0 r/min
Forward rotation