11 - 20
Chapter 11 Manual Control
11.3.4 Creating a program to enable/disable the inching operation
A sequence program must be created to execute an inching operation. Consider the
"required control data setting", "start conditions", and "start time chart" when creating
the program.
The following shows an example when an inching operation is started for axis 1. (The
example shows the inching operation when a "10.0 µm" is set in "
Cd.16
Inching
movement amount".)
Required control data setting
The control data shown below must be set to execute an inching operation. The
setting is carried out with the sequence program.
Setting item
Setting
value
Setting details
Buffer memory address
LD77MS2
LD77MS4
LD77MS16
Cd.16
Inching movement
amount
100
Set the setting value so that the JOG speed
limit value is not increased larger than the
maximum output pulse
1517+100n 4317+100n
n: Axis No.-1
: Refer to Section 5.7 "List of control data" for information on 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
LD77MS2
LD77MS4
LD77MS16
Interface
signal
PLC READY signal
ON PLC CPU preparation completed
Y0
READY signal
ON LD77MS preparation completed
X0
All axis servo ON
ON All axis servo ON
Y1
Synchronization flag ON
Accessible to LD77MS buffer
memory
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 LD77MS is not operating
XC to XF
X10 to X1F
Positioning complete
signal
OFF
Positioning complete signal is
OFF
X14 to X17
Md.31
Status: b15
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.
Summary of Contents for MELSEC-L Series
Page 2: ......
Page 30: ...MEMO ...
Page 70: ...2 10 Chapter 2 System Configuration MEMO ...
Page 83: ...3 13 Chapter 3 Specifications and Functions MEMO ...
Page 103: ...3 33 Chapter 3 Specifications and Functions MEMO ...
Page 107: ...3 37 Chapter 3 Specifications and Functions MEMO ...
Page 111: ...3 41 Chapter 3 Specifications and Functions MEMO ...
Page 115: ...3 45 Chapter 3 Specifications and Functions MEMO ...
Page 140: ...4 22 Chapter 4 Installation Wiring and Maintenance of the Product MEMO ...
Page 253: ...5 113 Chapter 5 Data Used for Positioning Control MEMO ...
Page 342: ...5 202 Chapter 5 Data Used for Positioning Control MEMO ...
Page 438: ...7 20 Chapter 7 Memory Configuration and Data Process MEMO ...
Page 440: ...MEMO ...
Page 485: ...9 25 Chapter 9 Major Positioning Control MEMO ...
Page 594: ...9 134 Chapter 9 Major Positioning Control MEMO ...
Page 624: ...10 30 Chapter 10 High Level Positioning Control MEMO ...
Page 656: ...11 32 Chapter 11 Manual Control MEMO ...
Page 690: ...12 34 Chapter 12 Expansion Control MEMO ...
Page 798: ...13 108 Chapter 13 Control Sub Functions MEMO ...
Page 866: ...14 68 Chapter 14 Common Functions MEMO ...
Page 884: ...15 18 Chapter 15 Dedicated Instructions MEMO ...
Page 899: ...16 15 Chapter 16 Troubleshooting MEMO ...
Page 1036: ...Appendix 88 Appendices MEMO ...
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