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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
QD77MS2 
QD77MS4 
QD77MS16
[Cd.16] 
Inching movement 
amount 
0 Set 
"0". 
1517+100n 
4317+100n
[Cd.17] JOG speed 
10000 
Set a value equal to or below the "[Pr.31]   
JOG speed limit value". 
1518+100n 
1519+100n 
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 
QD77MS2 
QD77MS4 
QD77MS16 
Interface 
signal 
PLC READY signal 
ON PLC CPU preparation completed
Y0 
READY signal 
ON QD77MS preparation completed
X0 
All axis servo ON 
ON All axis servo ON 
Y1 
Synchronization flag   ON
QD77MS buffer memory 
The access is possible. 
X1 
Axis stop signal 
OFF Axis stop signal is OFF 
Y4 to Y7  [Cd.180] Axis stop
Start complete signal 
OFF Start complete signal is OFF 
X10 to X13  [Md.31] Status: b14
BUSY signal 
OFF QD77MS is not operating 
XC to XF 
X10 to X1F 
Error detection signal 
OFF There is no error 
X8 to XB  [Md.31] Status: b13
M code ON signal 
OFF M code ON signal is OFF 
X4 to X7 
[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.