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MELSEC-Q
7 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL
Restart program
This program is used to resume positioning control, at " Cd. 4 Restart request,
from where it stopped if the axis had been stopped by the axis stop signal during
operation under position control or speed-position switching control.
(Refer to "Section 11.6 Restart function" for details of the restart function.)
Data requiring setting
Set the following data.
Buffer memory address
Setting item
Setting value
Axis 1 Axis 2 Axis 3 Axis 4 Axis 5 Axis 6 Axis 7 Axis 8
Cd. 4 Restart request
1: With restart request
53
153
253
353
453
553
653
753
Refer to "Section 4.7 List of control data" for more information on the setting details.
Start conditions
When a restart is to be made, "Md. 4 Axis operation status" must be "1: Stopped"
and the following conditions satisfied. (Necessary conditions are included in the
sequence program as interlocks.)
Device
Signal name
Signal state
Axis 1 Axis 2 Axis 3 Axis 4 Axis 5 Axis 6 Axis 7 Axis 8
PLC READY signal
ON PLC CPU ready
Y0
Module READY signal
ON QD70 ready
X0
Axis error occurrence signal
OFF No error
X1
Axis stop signal
OFF Axis stop signal being OFF
Y10
Y11
Y12
Y13
Y14
Y15
Y16
Y17
Start complete signal
OFF Start complete signal being OFF
X10
X11
X12
X13
X14
X15
X16
X17
In
te
rf
ac
e s
ignal
BUSY signal
OFF QD70 not operating
X8
X9
XA
XB
XC
XD
XE
XF
Restarting timing chart
0
V
t
Axis error occurrence signal [X1]
1
Dwell time
4
1
4
0
0
0
PLC READY signal [Y0]
Module READY signal [X0]
Axis stop signal [Y10 to Y17]
Positioning start signal [Y8 to YF]
Start complete signal [X10 to X17]
BUSY signal [X8 to XF]
Positioning complete signal [X18 to X1F]
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
ON
ON
Axis operation status
Md.4
Restart request
Cd.4
Fig. 7.9 Restarting timing chart (for position control)
Содержание GX Configurator-PT
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