Creating A Program To Enable/Disable The Manual Pulse Generator Operation - Mitsubishi Electric MELSEC-Q QD75M User Manual

11 MANUAL CONTROL

11.4.4 Creating a program to enable/disable the manual pulse generator operation

Setting item
Manual pulse
generator 1 pulse
Cd.20
input magnification
Manual pulse
generator enable
Cd.21
flag
Refer to Section 5.7 "List of control data" for details on the setting details.
Interface
signal
External
signal
A PLC program must be created to execute a manual pulse generator operation.
Consider the "required control data setting", "start conditions" and "start time chart"
when creating the program.
The following shows an example when a manual pulse generator operation is started
for axis 1.
Required control data setting
The control data shown below must be set to execute a manual pulse generator
operation. The setting is carried out with the PLC program.
Setting
value
Set the manual pulse generator 1 pulse input
1
magnification.
Set "1: Enable manual pulse generator
operation". (Set "0: Disable manual pulse
1 (0)
generator operation" when finished with the
manual pulse generator operation.)
Start conditions
The following conditions must be fulfilled when starting. The required conditions
must also be assembled in the PLC program, and the PLC program must be
configured so the operation will not start if the conditions are not fulfilled.
Signal name
PLC READY signal
QD75 READY signal
All axis servo ON
Synchronization flag
Axis stop signal
Start complete signal
BUSY signal
Error detection signal
M code ON signal
Stop signal
Upper limit (FLS)
Lower limit (RLS)
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.
Setting details
Signal state
ON PLC CPU preparation completed
ON QD75 preparation completed
ON All axis servo ON
QD75 buffer memory
ON
The access is possible.
OFF Axis stop signal is OFF
OFF Start complete signal is OFF
OFF QD75 is not operating
OFF There is no error
OFF M code ON signal is OFF
OFF Stop signal is OFF
ON Within limit range
ON Within limit range
11 - 33
MELSEC-Q
Buffer memory address
Axis Axis Axis Axis
1 2 3 4
1522 1622 1722 1822
1523 1623 1723 1823
1524 1624 1724 1824
Device
Axis Axis Axis Axis
1 2 3 4
Y0
X0
Y1
X1
Y4 Y5 Y6 Y7
X10 X11 X12 X13
XC XD XE XF
X8 X9 XA XB
X4 X5 X6 X7
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–
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