13 - 46
Chapter 13 Control Sub Functions
(2) The following shows the speed change time chart.
[QD77MS4 operation example]
Cd. 15 Speed change request
Cd. 14 New speed value
In speed change
processing flag
BUSY signal
QD77 READY signal
Error detection signal
V
t
1
0
0
1
0
2000
0
Start complete signal
Dwell time
PLC READY signal
Positioning start signal
Positioning complete signal
[Y10]
[Y0]
[X0]
[X10]
[XC]
[X14]
[X8]
Md. 40
All axis servo ON
[Y1]
(Note): Refer to Section 3.3 for input/output signal of QD77MS16.
Fig. 13.26 Time chart for changing the speed from the PLC CPU
(3) Add the following sequence program to the control program, and write it to
the PLC CPU.
No.14 Speed change program
<Pulsate speed change command>
<Hold speed change command>
<Set speed change value
(20.00mm/min)>
<Set speed change request>
<Write speed change>
<Turn OFF speed change request
memory>
M11
PLS
M12
SET
M11
PLS
K2000
DMOVP
D11
M11
PLS
K1
MOVP
D13
TOP
H0
K1514
D11
K3
M12
RST
U0\
G1516
=
K0
483
490
494
X32
M11
X0C
M12
[QD77MS4 program example]
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 359: ...6 44 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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