Mitsubishi Electric MELSEC Q Series User Manual page 144

7 OPR CONTROL
POINT
(1) When a limit switch is detected, an "error code 1500" will occur and the OPR is
terminated. (Retry is not executed.) When there is a proximity dog in the
opposite direction against of OPR, an "error code 1500" will surely occur.
Therefore, position the proximity dog in front of the limit switch signal, and as
shown in the diagram, position the proximity dog signal so that it overlaps the
limit switch signal.
(2) While it is moving in the opposite direction against of OPR, it cannot be
stopped until the home position search limit or the limit switch of opposite is
detected.
(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) After proximity dog ON, a home position signal (zero point) on a linear scale
is detected, and a deceleration stop is made.
3) After deceleration stop, it moves in direction of OPR at the speed set in
" Creep speed", and the OPR completes at the position of home
Pr.56
position signal (zero point).
OP signal (Zero point)
OPR speed".
Pr.54
V
OPR direction
Pr.51
3)
OP
2)
Proximity
dog
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MELSEC-Q
Pr.51
Creep speed
Pr.56
1)
OPR start
OPR speed
Pr.54
Limit switch
OPR