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Chapter 6 Sequence Program Used for Positioning Control
[1] Starting by inputting positioning start signal
Operation when starting
(1) When the positioning start signal turns ON, the start complete signal and
BUSY signal turn ON, and the positioning operation starts.
It can be seen that the axis is operating when the BUSY signal is ON.
(2) When the positioning start signal turns OFF, the start complete signal also
turns OFF.
If the positioning start signal is ON even after positioning is completed, the
start complete signal will remain ON.
(3) If the positioning start signal turns ON again while the BUSY signal is ON, the
warning "Operating start" (warning code: 100) will occur.
(4) The process taken when positioning is completed will differ according to case
(a) and (b) below.
(a) When next positioning is not to be carried out
If a dwell time is set, the system will wait for the set time to pass, and then
positioning will be completed.
When positioning is completed, the BUSY signal will turn OFF and the
positioning complete signal will turn ON. However, when using speed
control or when the positioning complete signal ON time is "0", the signal
will not turn ON.
When the positioning complete signal ON time is passed, the positioning
complete signal will turn OFF.
(b) When next positioning is to be carried out
If a dwell time is set, the system will wait for the set time to pass.
When the set dwell time is passed, the next positioning will start.
[LD77MS4 operation example]
OFF
ON
OFF
ON
OFF
ON
OFF
ON
V
t
OFF
ON
Positioning start signal
[Y10, Y11, Y12, Y13]
Start complete signal
[X10, X11, X12, X13]
BUSY signal
[XC, XD, XE, XF]
Positioning complete signal
[X14, X15, X16, X17]
Positioning
All axis servo ON
[Y1]
Dwell time
(Note): Refer to Section 3.3 for input/output signal of LD77MS16.
Fig. 6.3 ON/OFF timing of each signal at start of positioning
Содержание MELSEC-L Series
Страница 1: ...MELSEC L LD77MS Simple Motion Module User s Manual Positioning Control LD77MS2 LD77MS4 LD77MS16 ...
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Страница 30: ...MEMO ...
Страница 70: ...2 10 Chapter 2 System Configuration MEMO ...
Страница 83: ...3 13 Chapter 3 Specifications and Functions MEMO ...
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Страница 115: ...3 45 Chapter 3 Specifications and Functions MEMO ...
Страница 140: ...4 22 Chapter 4 Installation Wiring and Maintenance of the Product MEMO ...
Страница 253: ...5 113 Chapter 5 Data Used for Positioning Control MEMO ...
Страница 342: ...5 202 Chapter 5 Data Used for Positioning Control MEMO ...
Страница 438: ...7 20 Chapter 7 Memory Configuration and Data Process MEMO ...
Страница 440: ...MEMO ...
Страница 485: ...9 25 Chapter 9 Major Positioning Control MEMO ...
Страница 594: ...9 134 Chapter 9 Major Positioning Control MEMO ...
Страница 624: ...10 30 Chapter 10 High Level Positioning Control MEMO ...
Страница 656: ...11 32 Chapter 11 Manual Control MEMO ...
Страница 690: ...12 34 Chapter 12 Expansion Control MEMO ...
Страница 798: ...13 108 Chapter 13 Control Sub Functions MEMO ...
Страница 866: ...14 68 Chapter 14 Common Functions MEMO ...
Страница 884: ...15 18 Chapter 15 Dedicated Instructions MEMO ...
Страница 899: ...16 15 Chapter 16 Troubleshooting MEMO ...
Страница 1036: ...Appendix 88 Appendices MEMO ...
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