Справочник Пользователя для Mitsubishi Electronics QD75D
5 - 48
MELSEC-Q
5 DATA USED FOR POSITIONING CONTROL
4 : Count method 1)
(1) Start machine OPR.
(Start movement at the " Pr.46 OPR speed" in the
" 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
creep speed.
(4) After the near-point dog turns ON and the movement
amount set in " Pr.50 Setting for the movement amount
after near-point dog ON" has passed, the pulse output from
the QD75 stops with the first zero signal (one pulse output
at one motor revolution), and the machine OPR is
completed.
the QD75 stops with the first zero signal (one pulse output
at one motor revolution), and the machine OPR is
completed.
t
V
ON
(4)
(3)
(2)
(1)
Near-point dog OFF
Zero signal
OPR speed
Pr.46
Pr.47 Creep speed
Pr.50
Setting for the movement
amount after near-poing dog ON
amount after near-poing dog ON
First zero signal after moving the
movement amount after near-
point dog ON
movement amount after near-
point dog ON
Movement amount after
near-point dog ON
near-point dog ON
Md.34
The near-point dog must turn OFF
at a sufficient distance away from
the OP position.
at a sufficient distance away from
the OP position.
5 : Count method 2)
(1) Start machine OPR.
(Start movement at the " Pr.46 OPR speed" in the
" 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
creep speed.
(4) After the near-point dog turns ON and the movement
amount set in " Pr.50 Setting for the movement amount
after near-point dog ON" has passed, the pulse output from
the QD75 stops with the first zero signal, and the machine
OPR is completed.
the QD75 stops with the first zero signal, and the machine
OPR is completed.
t
V
ON
(1)
(2)
(3)
(4)
Near-point dog OFF
Movement amount after
near-point dog ON
near-point dog ON
Md.34
OPR speed
Pr.46
Pr.47 Creep speed
Pr.50
Setting for the movement
amount after near-poing dog ON
amount after near-poing dog ON
Setting value, setting range
Setting value buffer memory
address
Item
Value set with peripheral device
Value set with sequence
program
Default
value
Axis 1 Axis 2 Axis 3 Axis 4
0 : Positive direction (address
increment direction)
0
Pr.44
OPR direction
1 : Negative direction (address
decrement direction)
1
0
71
221
371
521
Pr.45
OP address
The setting value range differs depending on the " Pr.1 Unit
setting".
Here, the value within the [Table 1] range is set.
Here, the value within the [Table 1] range is set.
[Table 1] on right page
0
72
73
73
222
223
223
372
373
373
522
523
523
Pr.46
OPR speed
The setting value range differs depending on the " Pr.1 Unit
setting".
Here, the value within the [Table 2] range is set.
Here, the value within the [Table 2] range is set.
[Table 2] on right page
1
74
75
75
224
225
225
374
375
375
524
525
525