9 - 18
MELSEC-Q
9 MAJOR POSITIONING CONTROL
Restrictions
A 0.9ms (QD75P N /QD75D N) or 1.8ms (QD75P /QD75D ) error will occur in
the current value update timing when the stored "current feed value" is used in the
control.
A 0.9ms (QD75P N /QD75D N) or 56.8ms (QD75P /QD75D ) error will occur
in the current value update timing when the stored "machine feed value" is used in
the control.
Monitoring the current value
The "current feed value" and "machine feed value" are stored in the following
buffer memory addresses, and can be read using a "DFRO (P) instruction" or
"DMOV (P) instruction" from the CPU module.
Buffer memory addresses
Axis 1
Axis 2
Axis 3
Axis 4
Md.20 Current feed value
800, 801
900, 901
1000, 1001
1100, 1101
Md.21 Machine feed value
802, 803
902, 903
1002, 1003
1102, 1103
(1) The following shows the examples of programs to read out the current feed
value of the axis 1 to D104 and D105 when X40 is turned ON.
(a) For the DFRO(P) instruction
(b) For the DMOV(P) instruction
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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