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Remark
● Parameter settings work in common for all control using the LD75. When carrying out other controls ("major positioning
control", "high-level positioning control", and "OPR positioning control"), the respective setting items must also be set.
● Parameters are set for each axis.
● Refer to Page 93, CHAPTER 5 for the information on detail settings.
11.2.4
Creating start programs for JOG operation
A 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.)
(1) Required control data setting
The control data shown below must be set to execute a JOG operation. The setting is carried out with the
program.
Setting item
Inching movement
[Cd.16]
amount
[Cd.17]
JOG speed
Refer to Page 211, Section 5.7 for the information on detail settings.
(2) Start conditions
The following conditions must be fulfilled when starting. The required conditions must also be assembled in the
program, and the program must be configured so the operation will not start if the conditions are not fulfilled.
Signal name
PLC READY signal
LD75 READY signal
Synchronization flag
Axis stop signal
Interface signal
Start complete signal
BUSY signal
Error detection signal
M code ON signal
Drive unit READY signal
Stop signal
External signal
Upper limit (FLS)
Lower limit (RLS)
*1
If the CPU module 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 CPU module executes calculation.
486
Setting
value
0
Set "0".
Set a value equal to or above the "[Pr.7] Bias speed at
10000
start" and equal to or below the "[Pr.31] JOG speed limit
value".
ON
ON
*1
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON
ON
Setting details
Signal state
CPU module preparation
completed
LD75 preparation completed
LD75 buffer memory accessible
Axis stop signal is OFF.
Start complete signal is OFF.
LD75 is not operating
There is no error
M code ON signal is OFF.
Drive unit preparation completed
Stop signal is OFF.
Within limit range
Within limit range
Buffer memory address
Axis 1
Axis 2
Axis 3
1517
1617
1717
1518
1618
1718
1519
1619
1719
Device
Axis 1
Axis 2
Axis 3
Y0
X0
X1
Y4
Y5
Y6
X10
X11
X12
XC
XD
XE
X8
X9
XA
X4
X5
X6
Axis 4
1817
1818
1819
Axis 4
Y7
X13
XF
XB
X7
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Troubleshooting
