11 - 10
Chapter 11 Manual Control
11.2.4 Creating start programs for JOG operation
A sequence program must be created to execute a JOG operation. Consider the
"required control data setting", "start conditions" and "start time chart" when creating
the program.
The following shows an example when a JOG operation is started for axis 1. ("[Cd.17]
JOG speed" is set to "100.00mm/min" in the example shown.)
Required control data setting
The control data shown below must be set to execute a JOG operation. The
setting is carried out with the sequence program.
Setting item
Setting
value
Setting details Buffer memory address
[Cd.16]
Inching movement
amount
0 Set "0". 4317+100n
[Cd.17] JOG speed 10000
Set a value equal to or below the "[Pr.31]
JOG speed limit value".
4318+100n
4319+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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