Mitsubishi GX Configurator-PT, Руководство пользователя

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MELSEC-Q
8 OPR CONTROL
8.2.7 OPR method (5): Count 1
The following shows an operation outline of the "count 1" OPR method.
Operation chart
1)
Machine OPR control is started.
(Acceleration starts in the direction set in " OPR. 2 OPR direction" at the time set in "OPR. 6 ACC/DEC time at OPR",
and the axis moves at "OPR. 4 OPR speed".)
2) Near-point dog ON is detected and deceleration starts at the time set in " OPR. 6 ACC/DEC time at OPR".
3)
The machine decelerates to the " OPR. 5 Creep speed", and subsequently moves at that speed.
4)
On detection of the first zero signal after the axis has traveled the movement amount set in "OPR. 8 Setting for the
movement amount after near-point dog ON" after near-point dog ON, the pulse output from the QD70 stops immediately
and the "deviation counter clear output" is output to the drive unit.
(The "deviation counter clear signal output time" is set in Pr. 8 .)
5)
After a "deviation counter clear output" is output to the drive unit, the OPR complete flag (Md. 7 Status: b1) turns from
OFF to ON, and the OPR request flag (Md. 7Status: b0) turns from ON to OFF.
t
OPR control start
(Positioning start signal: Y8 to YF)
ON
OFF
OPR speed
ON
OFF
OFF
ON
Standby During OPR Standby
Axis operation status
Unfixed 0
Movement amount after
near-point dog ON
Unfixed
Traveled value is stored
OP address
Current feed value
V
Zero signal
Value marked
Deviation counter clear output
Movement amount after near-point dog ON
Near-point dog
ON
OFF
Setting for the movement amount
after near-point dog ON
Creep speed
Leave sufficient distance from the OP
position to the near-point dog OFF
OPR request flag
OPR complete flag
Status: b0 Md.7
Md.4
Deviation counter clear signal output time Pr.8
Md.2
Md.1
OPR.4
OPR.5
OPR.8
Md.2
One motor rotation
Adjust the setting for the movement amount after
near-point dog ON to be as near as possible to
the center of the zero signal HIGH.
If the setting for the movement amount after
near-point dog ON falls within the zero signal,
there may be produced an error of one motor
rotation in the OPR control stop position.
Bias speed at start
Pr.6
Deceleration at the near-point dog ON
1) 2) 3) 4) 5)
Status: b1 Md.7
1
1
First zero signal after movement by the value
set to " OPR. 8 Setting for the movement
amount after near-point dog ON"
Fig. 8.10 Count 1 machine OPR control