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Chapter 11 Manual Control
11.4.4 Creating a program to enable/disable the manual pulse generator operation
A sequence 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 sequence program.
Setting item
Setting
value
Setting details Buffer memory address
[Cd.20]
Manual pulse
generator 1 pulse
input magnification
1
Set the manual pulse generator 1 pulse input
magnification.
(1 to 10000 times)
4322+100n
4323+100n
[Cd.21]
Manual pulse
generator enable
flag
1 (0)
Set "1: Enable manual pulse generator
operation". (Set "0: Disable manual pulse
generator operation" when finished with the
manual pulse generator operation.)
4324+100n
n: Axis No.-1
: Refer to Section 5.7 "List of control data" for details on the 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.
Signal name Signal state Device
Interface
signal
PLC READY signal ON PLC CPU preparation completed Y0
READY signal ON QD77GF preparation completed X0
All axis servo ON ON All axis servo ON Y1
Synchronization flag ON
QD77GF buffer memory
The access is possible.
X1
Axis stop signal OFF Axis stop signal is OFF [Cd.180] Axis stop
Start complete signal OFF Start complete signal is OFF [Md.31] Status: b14
BUSY signal OFF QD77GF is not operating X10 to X1F
Error detection signal OFF There is no error [Md.31] Status: b13
M code ON signal OFF M code ON signal is OFF [Md.31] Status: b12
External
signal
Forced stop input signal ON There is no forced stop input –
Stop signal OFF Stop signal is OFF –
Upper limit (FLS) ON Within limit range –
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.
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