Справочник Пользователя для Mitsubishi Electronics QD75D
11 - 22
MELSEC-Q
11 MANUAL CONTROL
11.3.4 Creating a program to enable/disable the inching operation
A sequence program must be created to execute an inching operation. Consider the
"required control data setting", "start conditions", and "start time chart" when creating
the program.
The following shows an example when an inching operation is started for axis 1. (The
"required control data setting", "start conditions", and "start time chart" when creating
the program.
The following shows an example when an inching operation is started for axis 1. (The
example shows the inching operation when a "10.0 µm" is set in "
Cd.16
Inching
movement amount".)
Required control data setting
The control data shown below must be set to execute an inching operation. The
setting is carried out with the sequence program.
setting is carried out with the sequence program.
Buffer memory address
Setting item
Setting
value
Setting details
Axis
1
Axis
2
Axis
3
Axis
4
Cd.16
Inching movement
amount
amount
100
Set the setting value so that the command
pulse is not increased larger than the maximum
output pulse. (The maximum output pulse is 1
Mpps for QD75D
pulse is not increased larger than the maximum
output pulse. (The maximum output pulse is 1
Mpps for QD75D
: differential drive output
system), or 200 kpps for QD75P
: open
collector output system.)
1517 1617 1717 1817
Refer to Section 5.7 "List of control data" for information on setting details.
Start conditions
The following conditions must be fulfilled when starting. The required conditions
must also be assembled in the sequence program, and the sequence program
must be configured so the operation will not start if the conditions are not fulfilled.
must also be assembled in the sequence program, and the sequence program
must be configured so the operation will not start if the conditions are not fulfilled.
Device
Signal name
Signal state
Axis
1
Axis
2
Axis
3
Axis
4
PLC READY signal
ON PLC CPU preparation completed
Y0
QD75 READY signal
ON QD75 preparation completed
X0
Synchronization flag
ON
Accessible to QD75 buffer
memory
memory
X1
Axis stop signal
OFF Axis stop signal is OFF
Y4
Y5
Y6
Y7
Start complete signal
OFF Start complete signal is OFF
X10 X11 X12 X13
BUSY signal
OFF QD75 is not operating
XC
XD
XE
XF
Positioning complete
signal
signal
OFF
Positioning complete signal is
OFF
OFF
X14 X15 X16 X17
Error detection signal
OFF There is no error
X8
X9
XA
XB
Interface
signal
signal
M code ON signal
OFF M code ON signal is OFF
X4
X5
X6
X7
Drive unit READY signal
ON Drive unit preparation completed
–
Stop signal
OFF Stop signal is OFF
–
Upper limit (FLS)
ON Within limit range
–
External
signal
signal
Lower limit (RLS)
ON Within limit range
–
If the PLC CPU is set to the asynchronous mode in the synchronization setting, this must be
inserted in the program for interlocking. If it is set to the synchronous mode, it must not be
inserted in the program for interlocking because it is turned ON when the PLC CPU executes
calculation.
inserted in the program for interlocking because it is turned ON when the PLC CPU executes
calculation.