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Chapter 11 Manual Control
11.4 Manual pulse generator operation
11.4.1 Outline of manual pulse generator operation
Manual pulse generator operation
In manual pulse generator operations, pulses are input to the QD77MS from the
manual pulse generator. This causes the same number of input command to be
output from the QD77MS to the servo amplifier, and the workpiece is moved in the
designated direction.
The following shows and example of manual pulse generator operation.
1)
When the "
Cd.21
Manual pulse generator enable flag" is set to "1", the BUSY signal
turns ON and the manual pulse generator operation is enabled.
2)
The workpiece is moved corresponding to the number of pulses input from the manual
pulse generator.
3)
The workpiece movement stops when no more pulses are input from the manual pulse
generator.
4)
When the "
Cd.21
Manual pulse generator enable flag" is set to "0", the BUSY signal
turns OFF and the manual pulse generator operation is disabled.
[QD77MS4 operation example]
Manual pulse
generator
operation stops
t
BUSY signal [XC, XD, YE, XF]
Manual pulse
generator input
Start complete signal
[X10, X11, X12, X13]
Manual pulse generator operation enabled
0
OFF
ON
OFF
1) 2)
3)
4)
1
0
Cd. 21 Manual pulse
generator enable flag
1
2
(Note): Refer to Section 3.3 for input/output signal of QD77MS16.
[Precautions]
1: If the input from the manual pulse generator stops, the machine will decelerate to a stop within 25 ms.
2: The start complete signal does not turn ON in manual pulse generator operation.
Fig. 11.16 Manual pulse generator operation
Important
Create the sequence program so that "
Cd.21
Manual pulse generator enable flag"
is always set to "0" (disabled) when a manual pulse generator operation is not
carried out.
Mistakenly touching the manual pulse generator when the manual pulse generator
enable flag is set to "1" (enable) can cause accidents or incorrect positioning.
Summary of Contents for MELSEC-Q QD77MS
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Page 27: ...A 26 MEMO...
Page 29: ...MEMO...
Page 101: ...3 34 Chapter 3 Specifications and Functions MEMO...
Page 232: ...5 111 Chapter 5 Data Used for Positioning Control MEMO...
Page 315: ...5 194 Chapter 5 Data Used for Positioning Control MEMO...
Page 337: ...6 22 Chapter 6 Sequence Program Used for Positioning Control...
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Page 413: ...MEMO...
Page 433: ...8 20 Chapter 8 OPR Control MEMO...
Page 458: ...9 25 Chapter 9 Major Positioning Control MEMO...
Page 593: ...10 30 Chapter 10 High Level Positioning Control MEMO...
Page 625: ...11 32 Chapter 11 Manual Control MEMO...
Page 659: ...12 34 Chapter 12 Expansion Control MEMO...
Page 767: ...13 108 Chapter 13 Control Sub Functions MEMO...
Page 813: ...14 46 Chapter 14 Common Functions MEMO...
Page 831: ...15 18 Chapter 15 Dedicated Instructions MEMO...
Page 846: ...16 15 Chapter 16 Troubleshooting MEMO...
Page 892: ...16 61 Chapter 16 Troubleshooting MEMO...
Page 971: ...Appendix 62 Appendices MEMO...
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