Mitsubishi Electric MELSEC-L LD75D, User Manual

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5.2.5
OPR basic parameters
(1) [Pr.43] OPR method
Set the "OPR method" for carrying out machine OPR.
Refer to  Page 318, Section 8.2 for details on the OPR methods.
(2) OPR method
(a) 0: Near-point dog method
1.
Start machine OPR. (Start movement at the "[Pr.46] OPR speed" in the "[Pr.44] OPR direction".)
2.
The machine begins decelerating when the near-point dog ON is detected.
3.
The machine decelerates to the "[Pr.47] Creep speed", and subsequently moves at that speed. (At
this time, the near-point dog must be ON. If the near-point dog is OFF, the machine 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 LD75 stops, and the machine OPR is completed.
Item
Setting value, setting range
Default value
Setting value buffer memory
address
Value set with GX Works2 Value set with 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
Selection of [Pr.43] OPR
method
OPR operation
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.
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.
3: Stopper method 3)
After starting with the creep speed, stop with the stopper, and complete the machine OPR with the 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.
5: Count method 2) After decelerating at the near-point dog ON, move the designated distance, and complete the machine OPR.
t
1.
2.
3.
4.
ON
OFF
V
Near-point dog
Zero signal
OPR speed
Pr.46
Pr.47
Creep speed