Mitsubishi Electric MELSEC Q Series User Manual page 136

7 OPR CONTROL
(3) The start position is on a proximity dog
1) It moves in the opposite direction against of direction set in "
direction" at the speed set in "
2) If the zero point is passed with the proximity dog OFF, a deceleration stop is
made. (If the zero point is not passed, it continues to move until the zero
point is passed, and then a deceleration stop is made.)
3) After deceleration stop, it moves in the direction of OPR at the OPR speed.
4) The proximity dog ON is detected, and it starts to decelerate at the speed
set in "
Pr.56
5) It decelerates to the creep speed, and subsequently moves at the creep
speed.
6) It stops with the proximity dog OFF. Thereafter, it restarts and the OPR
completes at the first zero point.
Pr.51
V
OPR speed
Pr.54
Zero point
(4) A limit switch is detected at the start up position
If a limit switch in the direction of OPR is ON, the OPR is executed in operation
of this section (2). If the limit switch in the opposite direction against of OPR is
ON, the OPR is executed in operation of this section (1).
Pr.54
Creep speed".
OPR direction
4)
5)
3)
OPR start
2)
Proximity dog
7 - 5
OPR speed".
OPR speed
Pr.54
1) 6)
OP
MELSEC-Q
OPR
Pr.51
Creep speed
Pr.56