12 - 45
MELSEC-Q
12 CONTROL SUB FUNCTIONS
[4] Setting the speed change function using an external command
signal
The speed can also be changed using an "external command signal".
The following shows the data settings and sequence program example for
changing the control speed of axis 1 using an "external command signal". (In this
example, the control speed is changed to "10000.00mm/min".)
(1) Set the following data to change the speed using an external command
signal.
(Use the start time chart shown in section (2) below as a reference, and set
using the sequence program shown in section (3).)
Buffer memory address
Setting item
Setting
value
Setting details
Axis
1
Axis
2
Axis
3
Axis
4
Pr.42 External command
function selection
1
Set "1: External speed change request".
62 212 362 512
Cd.8 External command
valid
1
Set "1: Validate the external command".
1505 1605 1705 1805
Cd.14 New speed value 1000000 Set the new speed.
1514
1515
1614
1615
1714
1715
1814
1815
Refer to Section 5.7 "List of control data" for details on the setting details.
(2) The following shows the speed change time chart.
Pr. 42 External command function selection
V
t
0
1
0
1
Md.40 In speed change processing flag
Cd. 14 New speed value
1000000
0
1
0
Cd. 8 External command valid
Dwell time
BUSY signal
Error detection signal
PLC READY signal
Positioning start signal
Positioning complete signal
QD75 READY signal
Start complete signal
[Y10]
[XC]
[X0]
[Y0]
[X10]
[X8]
[X14]
External command signal
Fig. 12.29 Time chart for changing the speed using an external command signal
Summary of Contents for Melsec-Q QD75D1
Page 1: ......
Page 2: ......
Page 22: ...A 20 MEMO ...
Page 24: ...MEMO ...
Page 41: ...1 17 MELSEC Q 1 PRODUCT OUTLINE MEMO ...
Page 48: ...1 24 MELSEC Q 1 PRODUCT OUTLINE MEMO ...
Page 60: ...2 12 MELSEC Q 2 SYSTEM CONFIGURATION MEMO ...
Page 137: ...5 33 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 232: ...5 128 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 252: ...6 20 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 253: ...6 21 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 278: ...6 46 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL MEMO ...
Page 292: ...MEMO ...
Page 436: ...9 120 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Page 464: ...10 28 MELSEC Q 10 HIGH LEVEL POSITIONING CONTROL MEMO ...
Page 638: ...14 24 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Page 647: ...15 9 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Page 686: ...15 48 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Page 839: ...Appendix 153 MELSEC Q APPENDICES 6 QD75D4N 90 23 27 4 12 98 4 46 Unit mm ...
Page 840: ...Appendix 154 MELSEC Q APPENDICES 7 QD75P1 QD75P2 QD75P4 27 4 23 98 90 4 46 unit mm ...
Page 841: ...Appendix 155 MELSEC Q APPENDICES 8 QD75D1 QD75D2 QD75D4 27 4 23 90 12 98 4 46 unit mm ...
Page 842: ...Appendix 156 MELSEC Q APPENDICES MEMO ...
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