Mitsubishi Electric MELSEC Q Series User Manual page 135

7 OPR CONTROL
V
Zero point
(2) There is a proximity dog in the opposite direction against of OPR
1) Start the OPR.
(It starts to accelerate at the time set in"
direction set in "
" OPR speed".)
Pr.54
2) It stops at the time set in "
limit switch detection of "OPR direction".
3) After stop, it moves in the opposite direction against of OPR at the OPR
speed.
4) 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.)
5) After deceleration stop, it moves in the direction of OPR at the OPR speed.
6) The proximity dog ON is detected, and it starts to decelerate at the speed
set in "
Pr.56
7) It decelerates to the creep speed, and subsequently moves at the creep
speed.
8) It stops with the proximity dog OFF. Thereafter, it restarts and the OPR
completes at the first zero point.
OPR direction
Pr.51
6)
5)
4)
Proximity dog
POINT
When the limit switch of OPR direction is detected again without the proximity dog
ON after operation in (5) the above, the retry (continuation from operation in (2)) is
executed again.
OPR direction", and it moves at the speed set in
Pr.51
Sudden stop deceleration time" with the
Pr.17
Creep speed".
Creep speed
Pr.56
7)
8)
OP
7 - 4
OPR acceleration time" to the
Pr.58
2)
1)
3)
OPR start
Limit switch
MELSEC-Q
OPR speed
Pr.54