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11 MANUAL CONTROL
11.4.2 Manual pulse generator operation execution procedure
The manual pulse generator operation is carried out by the following procedure.
Preparation
Manual pulse
generator operation
start
Monitoring of the
manual pulse
generator operation
Manual pulse
generator operation
stop
STEP 1
Set the parameters
Pr.1
Refer to Chapter 5
and Section 11.4.3.
STEP 2
Set " Cd. 20 Manual pulse generator 1 pulse input
magnification". (control data setting)
Refer to Section
11.4.4.
Create a sequence program in which the enable/disable is
set for the manual pulse generator operation.
(" Cd. 21 Manual pulse generator enable flag" setting.)
STEP 3
Write the sequence program to the PLC CPU.
STEP 4
Issue a command to enable the manual pulse generator
operation, and input the signals from the manual pulse
generator.
STEP 5
Monitor the manual pulse generator operation.
STEP 6
End the input from the manual pulse generator,
and issue a command to disable the manual pulse
End of control
REMARK
•
Mechanical elements such as limit switches are considered as already installed.
•
Parameter settings work in common for all control using the QD75.
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One of the following two methods can be used.
<Method 1>
to
)
Pr.24
Directly set (write) the parameters in the QD75 using
GX Configurator-QP.
<Method 2>
Set (write) the parameters from the PLC CPU to the QD75
using the sequence program (TO command).
Using GX Developer, set the control data and create a
sequence program to enable/disable the manual pulse
generator operation. (Set the control data in the QD75
buffer memory using the TO command.)
Write the sequence program created in STEP 1 and
STEP 2 to the PLC CPU using GX Developer.
Write "1" in " Cd.21 Manual pulse generator enable
flag", and operate the manual pulse generator.
One of the following two methods can be used.
<Method 1>
Monitor using GX Configurator-QP.
<Method 2>
Monitor using GX Developer.
Stop operating the manual pulse generator, and write "0"
in " Cd. 21 Manual pulse generator enable flag".
11 - 31
MELSEC-Q
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