Creating Start Programs For Jog Operation - Mitsubishi MELSEC QD75P User Manual

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.
("
Setting item
Cd.16 Inching movement
amount
Cd.17 JOG speed
Refer to Section 5.7 "List of control data" for details on the setting details.
Interface
signal
External
signal
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.
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
value
0 Set "0".
Set a value equal to or above the " Pr.7 Bias
10000 speed at start" and equal to or below the
" Pr.31 JOG speed limit value".
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
PLC READY signal
QD75 READY signal
Synchronization flag
Axis stop signal
Start complete signal
BUSY signal
Error detection signal
M code ON signal
Drive unit READY signal ON Drive unit preparation completed
Stop signal
Upper limit (FLS)
Lower limit (RLS)
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Setting details
Signal state
ON PLC CPU preparation completed
ON QD75 preparation completed
QD75 buffer memory
ON
The access is possible.
OFF Axis stop signal is OFF
OFF Start complete signal is OFF
OFF QD75 is not operating
OFF There is no error
OFF M code ON signal is OFF
OFF Stop signal is OFF
ON Within limit range
ON Within limit range
11 - 10
MELSEC-Q
Buffer memory address
Axis Axis Axis Axis
1 2 3 4
1517 1617 1717 1817
1518 1618 1718 1818
1519 1619 1719 1819
Device
Axis Axis Axis Axis
1 2 3 4
Y0
X0
X1
Y4 Y5 Y6 Y7
X10 X11 X12 X13
XC XD XE XF
X8 X9 XA XB
X4 X5 X6 X7
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–
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