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Operation – MITSUBISHI ELECTRIC MR-J2S- CL User Manual

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4. OPERATION

(i) Position latch (LPOS)

POINT

When Current position latch input (LPS) is used to store the current
position, the value differs depending on the servo motor speed provided

when LPS has turned ON.

The current position where Current position latch input (LPS) is turned ON is stored. The stored
position data can be read by the communication function. (Refer to Section 15.12.12)
The current position latch function set in a program is canceled at the end of that program. It is
also canceled when the operation mode is changed, a forced stop is made, an alarm occurs, or the
servo switches off. It is not canceled when a temporary stop is merely made.

Program

Description

SPN (500)
STA (200)
STB (300)
MOV (1000)
LPOS
STOP

Speed (Motor speed)

500 [r/min]

Acceleration time constant

200 [ms]

Deceleration time constant

300 [ms]

Absolute move command

1000 [ 10

STM

m]

Current position latch is set.

a)

Program end

0r/min

ON

OFF

1000

Servo motor
speed

Forward
rotation

Current position
latch input (LPS)

Current position 300 [ 10

STM

m]

is stored.

Latched when LPS
is turned ON edge by
LPOS. (a))