12 - 69
MELSEC-Q
12 CONTROL SUB FUNCTIONS
[Calculation of positioning address and concept of absolute position
detection system]
Use the following expression to calculate the positioning address.
(Positioning address) = (movement amount per pulse) (number of output pulses)
+ (OP address).............................................. Expression 1
1. Concept for the unit of mm, inch or pulse
The range which satisfies Conditions 1 and 2 can be used as the positioning
address of the absolute position detection system.
The range which does not satisfy Conditions 1 and 2 cannot be used as the
positioning address of the absolute position detection system.
The concepts of the positioning addresses in mm, inch and pulse are identical,
the following examples provide those of the mm unit.
Example 1.
(1) There are the following conditions to calculate the positioning address:
•
Movement amount per pulse: 0.1 (
μ
m)
•
OP address: 0.0 (
μ
m)
•
Feedback pulses = 8192 (pulse)
(2) Calculate the upper/lower limit values of the positioning address which can be
specified from the output pulse count using range in Condition 1 and the
positioning address calculation expression (Expression 1).
•
Lower limit value of positioning address (the number of negative pulses in
Condition 1 is used for calculation)
(Positioning address) = (Movement amount per pulse)
(number of output pulses) + (OP address)
=0.1 (-268435456) + 0.0
=-26843545.6(
μ
m)
•
Upper limit value of positioning address (the number of positive pulses in
Condition 1 is used for calculation)
(Positioning address) = (Movement amount per pulse)
(number of output pulses) + (OP address)
=0.1 (268435456) + 0.0
=26843545.5 (
μ
m)
(3) The upper/lower limit values of the positioning address calculated are within
the range of Condition 2.
Hence, the positioning range [-26843545.6 (
μ
m) to 26843545.5 (
μ
m)]
calculated in Condition 1 can be used in the absolute position detection system.
Positioning outside of the range -26843545.6 (
μ
m) to 26843545.5 (
μ
m)
cannot be used in the absolute position detection system.
Unit:
μ
m
OP
0
-214748364.8
214748364.7
-26843545.6
26843545.5
Unusable range in
absolute position
detection system
Unusable range in
absolute position
detection system
Usable range in absolute
position detection system
Содержание Melsec-Q QD75D1
Страница 1: ......
Страница 2: ......
Страница 22: ...A 20 MEMO ...
Страница 24: ...MEMO ...
Страница 41: ...1 17 MELSEC Q 1 PRODUCT OUTLINE MEMO ...
Страница 48: ...1 24 MELSEC Q 1 PRODUCT OUTLINE MEMO ...
Страница 60: ...2 12 MELSEC Q 2 SYSTEM CONFIGURATION MEMO ...
Страница 137: ...5 33 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Страница 232: ...5 128 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Страница 252: ...6 20 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Страница 253: ...6 21 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Страница 278: ...6 46 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL MEMO ...
Страница 292: ...MEMO ...
Страница 436: ...9 120 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Страница 464: ...10 28 MELSEC Q 10 HIGH LEVEL POSITIONING CONTROL MEMO ...
Страница 638: ...14 24 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Страница 647: ...15 9 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Страница 686: ...15 48 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Страница 693: ...Appendix 7 MELSEC Q APPENDICES Axis address mm inch degree pulse Axis address mm inch degree pulse ...
Страница 699: ...Appendix 13 MELSEC Q APPENDICES Initial value Axis 1 Axis 2 Axis 3 Axis 4 Remarks 0 0 0 1 1 0 0 0 0 0 0 300 11 0 0 ...
Страница 836: ...Appendix 150 MELSEC Q APPENDICES Appendix 14 External dimension drawing 1 QD75P1N Unit mm 23 4 27 4 98 90 46 ...
Страница 837: ...Appendix 151 MELSEC Q APPENDICES 2 QD75P2N Unit mm 23 27 4 90 4 98 46 3 QD75P4N 23 27 4 90 4 98 46 Unit mm ...
Страница 838: ...Appendix 152 MELSEC Q APPENDICES 4 QD75D1N 12 90 23 27 4 Unit mm 98 4 46 5 QD75D2N 90 23 27 4 12 98 4 46 Unit mm ...
Страница 839: ...Appendix 153 MELSEC Q APPENDICES 6 QD75D4N 90 23 27 4 12 98 4 46 Unit mm ...
Страница 840: ...Appendix 154 MELSEC Q APPENDICES 7 QD75P1 QD75P2 QD75P4 27 4 23 98 90 4 46 unit mm ...
Страница 841: ...Appendix 155 MELSEC Q APPENDICES 8 QD75D1 QD75D2 QD75D4 27 4 23 90 12 98 4 46 unit mm ...
Страница 842: ...Appendix 156 MELSEC Q APPENDICES MEMO ...
Страница 857: ......
Страница 858: ......