Mitsubishi MELSEC-Q Series User Manual page 171

8
OPR CONTROL
Pr.13 OPR speed
Pr.13
Pr.14 Creep speed
After deceleration to the creep speed,
the axis returns to the near-point dog ON
area, and OPR is performed again.
Figure 8.4 Operation when the near-point dog is OFF and no near-point dog exists in the OPR direction at the start of OPR control
Pr.14 Creep speed
The axis returns to the
near-point dog ON area,
and OPR is performed.
Figure 8.5 Operation when OPR is performed from ON position of the limit switch in the OPR direction at the start of OPR control
Pr.14
Creep speed
Figure 8.6 Operation when OPR is performed from the near-point dog ON position
(c) The following chart describes the operation when the near-point dog is OFF and
no near-point dog exists in the OPR direction at the start of OPR control.
OP
Near-point
ON
dog
Zero signal
(d) The following chart describes the operation when OPR is performed from ON
position of the limit switch in the OPR direction at the start of OPR control.
OP
Near-point
ON
dog
Zero signal
(e) The following chart describes the operation when OPR is performed from the
near-point dog ON position.
Start point OP
Near-point
ON
dog
Zero signal
Start point
Upper limit
switch
Upper limit
switch
8.2 Machine OPR Control
8.2.3 OPR method (1): Near-point dog method
Deceleration starts when the upper
limit switch turns ON.
ON
Start point
ON
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