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MELSEC-Q
9 MAJOR POSITIONING CONTROL
9.1.3 Designating the positioning address
The following shows the two methods for commanding the position in control using
positioning data.
Absolute system
Positioning is carried out to a designated position (absolute address) having the
OP as a reference. This address is regarded as the positioning address. (The
start point can be anywhere.)
Address
100
Address
150
Address
300
100
A point
150
B point
300
C point
Within the stroke limit range
Address 150
Address
100
Address 100
Address 150
OP
(Reference point)
Start point
End point
Fig. 9.6 Absolute system positioning
Incremental system
The position where the machine is currently stopped is regarded as the start point,
and positioning is carried out for a designated movement amount in a designated
movement direction.
Movement amount
+100
Movement
amount -150
Movement amount
-100
Movement 50
100
150
300
Movement amount-100
A point
B point
Within the stroke limit range
C point
Movement amount
+100
Movement 100
Start point
End point
Fig. 9.7 Incremental system positioning
Содержание MELSEC-Q QD75M
Страница 1: ...MELSEC Q QD75M Positioning Module User s Manual Details QD75M1 QD75M2 QD75M4 ...
Страница 17: ...MEMO ...
Страница 64: ...3 11 MELSEC Q 3 SPECIFICATIONS AND FUNCTIONS MEMO ...
Страница 91: ...4 16 MELSEC Q 4 INSTALLATION WIRING AND MAINTENANCE OF THE PRODUCT MEMO ...
Страница 108: ...5 17 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Страница 112: ...5 21 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Страница 116: ...5 25 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
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Страница 253: ...5 162 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Страница 274: ...6 21 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
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Страница 305: ...6 52 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Страница 332: ...7 7 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO ...
Страница 336: ...7 11 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO ...
Страница 347: ...MEMO ...
Страница 477: ...9 116 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Страница 539: ...11 36 MELSEC Q 11 MANUAL CONTROL MEMO ...
Страница 663: ...14 18 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Страница 771: ...Appendix 2 MELSEC Q APPENDICES MEMO ...
Страница 845: ...Appendix 76 MELSEC Q APPENDICES MEMO ...
Страница 855: ...Index 10 X X0 QD75 READY 3 15 X1 Synchronization flag 3 15 Z Zero speed Pr 130 5 74 ...