Mitsubishi GX Configurator-PT, User Manual

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8 - 7 8 - 7
MELSEC-Q
8 OPR CONTROL
Restrictions
(1) Always limit the motor torque after the "OPR. 5 Creep speed" is reached. If the
torque is not limited, the motor may fail when the machine presses against the
stopper. (Refer to section "12.4.2 Torque limit function".)
(For a torque limit, refer to the manual of the drive unit used.)
Precautions during operation
(1) Set a value in the "OPR. 9 OPR dwell time" that is equal to or higher than the
movement time from the near-point dog ON to the time the machine presses
against the stopper.
(2) The following is the operation performed if "OPR. 9 OPR dwell time" elapses
during deceleration from "OPR. 4 OPR speed".
V
ON
OFF
ON
OFF
OFF
ON
Pr.8
Bias speed at start Pr.6
OPR speed OPR.4
Deceleration started when near-point dog turns ON
t
Creep speed OPR.5
Stopper
Dwell time-out during deceleration
Torque limit
OPR dwell time-out
Near-point dog
ON
OFF
OPR dwell time counting
OPR control start
(Positioning start signal: Y8 to YF)
Axis operation status
Movement amount after
near-point dog ON
Current feed value
Deviation counter clear output
OPR request flag
OPR complete flag
Md.2
Md.1
Md.4
Md.7
Md.7 Status: b0
Status: b1
Standby During OPR Standby
Unfixed 0
Unfixed
Traveled value is stored
OP address
Deviation counter clear signal output time
Fig. 8.5 Operation when the dwell time elapses during deceleration from the OPR speed
(3) If the axis is started during near-point dog ON, it starts at "OPR. 5 Creep
speed".
(4) If the axis stop signal is turned ON during operation performed at "OPR. 4
OPR speed", the axis decelerates to a stop at the time set in "OPR. 7 DEC/
STOP time at OPR".