11 - 10
MELSEC-A
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", "start time chart", and "device
settings" when creating the program.
The following shows an example when a JOG operation is started for axis 1. ("
Cd.19
JOG speed" is set to "200.00mm/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.
Buffer memory address
Setting item
Setting
value
Setting details
Axis 1 Axis 2 Axis 3
Cd.19
JOG speed 20000
Set a value equal to or above the "
Pr.10
Bias
speed at start" and equal to or below the
"
Pr.32
JOG speed limit value".
1160
1161
1210
1211
1260
1261
* 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.
Device
Signal name Signal state
Axis 1 Axis 2 Axis 3
All axes servo ON signal ON Servo operation possible Y15
PLC READY signal ON PLC CPU preparation completed Y1D
AD75 READY signal OFF AD75 preparation completed X0
Axis stop signal OFF Axis stop signal is OFF Y13 Y14 Y1C
Start complete signal OFF Start complete signal is OFF X1 X2 X3
BUSY signal OFF BUSY signal is OFF X4 X5 X6
Error detection signal OFF There is no error XA XB XC
Interface
signal
M code ON signal OFF M code ON signal is OFF XD XE XF
Stop signal OFF Stop signal is OFF –
Upper limit (FLS) ON Within limit range –
External
signal
Lower limit (RLS) ON Within limit range –
Monitor
data
Servo ON ON Servo ON is ON
Md.116
Servo
status:b1
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