Справочник Пользователя для Mitsubishi Electronics QD75D2N
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MELSEC-Q
5 DATA USED FOR POSITIONING CONTROL
5.2.5 OPR basic parameters
Item
Setting value, setting range
Default
value
Setting value buffer memory
address
Value set with peripheral device
Value set with sequence
program
Axis 1 Axis 2 Axis 3 Axis 4
Pr.43
OPR method
0 : Near-point dog method
0
0 70
220
370
520
1 : Stopper method 1)
1
2 : Stopper method 2)
2
3 : Stopper method 3)
3
4 : Count method 1)
4
5 : Count method 2)
5
Pr.43 OPR method
Set the "OPR method" for carrying out machine OPR.
0 : Near-point dog method ........ After decelerating at the near-point dog ON, stop
0 : Near-point dog method ........ After decelerating at the near-point dog ON, stop
at the zero signal and complete the machine OPR.
1 : Stopper method 1) ............... After decelerating at the near-point dog ON, stop
with the stopper, and complete the machine OPR
after the dwell time has passed.
after the dwell time has passed.
2 : Stopper method 2) ............... After decelerating at the near-point dog ON, stop
with the stopper, and complete the machine OPR
with the zero signal.
with the zero signal.
3 : Stopper method 3) ............... After starting with the creep speed, stop with the
stopper, and complete the machine OPR with the
zero signal.
zero signal.
4 : Count method 1) .................. After decelerating at the near-point dog ON, move
the designated distance, and complete the
machine OPR with the zero signal.
machine OPR with the zero signal.
5 : Count method 2) .................. After decelerating at the near-point dog ON, move
the designated distance, and complete the
machine OPR.
machine OPR.
Note) Refer to Section 8.2.2 "Machine OPR method" for details on the OPR
methods.
OPR method
0 : Near-point dog method
(1) Start machine OPR.
(Start movement at the " Pr.46 OPR speed" in the
" Pr.44 OPR direction".)
" Pr.44 OPR direction".)
(2) Detect the near-point dog ON, and start deceleration.
(3) Decelerate to " Pr.47 Creep speed", and move with the
(3) Decelerate to " Pr.47 Creep speed", and move with the
creep speed.
(At this time, the near-point dog must be ON. If the near-
point dog is OFF, the axis will decelerate to a stop.)
(At this time, the near-point dog must be ON. If the near-
point dog is OFF, the axis will decelerate to a stop.)
(4) At the first zero signal (one pulse output at one motor
revolution) after the near-point dog OFF, the pulse output
from the QD75 stops, and the machine OPR is completed.
from the QD75 stops, and the machine OPR is completed.
t
V
ON
(1)
(2)
(3)
(4)
Near-point dog OFF
Zero signal
OPR speed
Pr.46
Pr.47
Creep speed