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5 MANUAL CONTROL
5.3 Inching Operation
Creating a start program for the inching operation
To perform the inching operation, create a program. When creating a program, consider Control data requiring settings, Start
condition, and Start time chart. The following shows an example when the inching operation is started for the axis 1. ([Cd.16]
Inching movement amount is set to 10.0
m.)
Control data requiring settings
The following control data must be set to execute the inching operation. The setting is executed with a program.
For details on the settings, refer to the following.
Page 474 [Cd.16] Inching movement amount
Start condition
Satisfy the following conditions to start a program. In addition, set the required conditions in the program to prevent an
operation from starting if the conditions are not satisfied.
*1 The interlock must be provided so that the buffer memory is accessed after Module access flag [X1] turns on. When no interlock is
provided, the buffer memory may be accessed while the module parameter and module extension parameter that are sent from the CPU
module are updated. If the buffer memory is accessed during the update, an unexpected value may be read or written.
Setting item
Setting
value
Setting detail
Buffer memory address
Axis 1
Axis 2
Axis 3
Axis 4
[Cd.16]
Inching movement amount
100
Set a setting value so that the command pulse is not larger
than the maximum output pulse.
Maximum output pulse
RD75D
: 5Mpulse/s
RD75P
: 200kpulse/s
1517
1617
1717
1817
Signal name
Signal status
Device
Axis 1
Axis 2
Axis 3
Axis 4
Interface signal
PLC READY signal
ON
The CPU module is ready.
Y0
RD75 READY signal
ON
RD75 READY signal
X0
Module access flag
ON
The RD75 buffer memory can be
accessed.
X1
Axis stop signal
OFF
Axis stop signal is off.
Y4
Y5
Y6
Y7
Start complete signal
OFF
Start complete signal is off.
X10
X11
X12
X13
BUSY signal
OFF
The RD75 is not in operation.
XC
XD
XE
XF
Positioning complete signal
OFF
Positioning complete signal is off.
X14
X15
X16
X17
Error detection signal
OFF
No error has been detected.
X8
X9
XA
XB
M code ON signal
OFF
M code ON signal is off.
X4
X5
X6
X7
External signal
Drive unit READY signal
ON
The drive unit is ready.
Stop signal
OFF
Stop signal is off.
Upper limit (FLS)
ON
The current position is within the limit.
Lower limit (RLS)
ON
The current position is within the limit.
Summary of Contents for MELSEC iQ-R RD75P4
Page 1: ...MELSEC iQ R Positioning Module User s Manual Application RD75P2 RD75P4 RD75D2 RD75D4 ...
Page 2: ......
Page 13: ...11 MEMO ...
Page 19: ...17 CONTENTS INDEX 588 REVISIONS 592 WARRANTY 593 TRADEMARKS 594 ...
Page 498: ...496 13 PROGRAMMING 13 2 List of Labels Used ...
Page 503: ...13 PROGRAMMING 13 4 Program Example 501 13 ...
Page 514: ...512 13 PROGRAMMING 13 4 Program Example Restart program Parameter data initialization program ...
Page 515: ...13 PROGRAMMING 13 4 Program Example 513 13 Flash ROM write program Error reset program ...
Page 516: ...514 13 PROGRAMMING 13 4 Program Example Stop program ...
Page 565: ...APPENDICES Appendix 4 Operation Examples of When the Remote Head Module Is Mounted 563 A ...
Page 597: ......