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MELSEC-Q
9 MAJOR POSITIONING CONTROL
9.2.9 4-axis fixed-feed control (interpolation)
In "4-axis fixed-feed control" (" Da.2 Control system" = fixed-feed 4), four motors are
used to carry out fixed-feed control in a linear path while carrying out interpolation for
the axis directions set in each axis.
In fixed-feed control, any remainder of the movement amount designated in the
positioning data is rounded down if less than that required for control accuracy to
output the same amount of pulses.
(Refer to Section 9.1.6 "Interpolation control" for details on interpolation control.)
Operation chart
In incremental system 4-axis fixed-feed control, the addresses ( Md.20 Current
feed value) of the current stop position (start addresses) of every axes are set to
"0". Linear interpolation positioning is then carried out from that position to a
position at the end of the movement amount set in " Da.6 Positioning
address/movement amount". The movement direction is determined by the sign of
the movement amount.
Restrictions
(1) An axis error "Continuous path control not possible" (error code: 516) will
occur and the operation cannot start if "continuous path control" is set in
" Da.1 Operation pattern". ("Continuous path control" cannot be set in fixed-
feed control.)
(2) For 4-axis fixed-feed control, set "1: Reference axis speed" in
" Pr.20 Interpolation speed designation method". An error "Interpolation
mode error" (error code: 523) will occur and the operation cannot start If "0:
Composite speed" is set.
(3) "Fixed-feed" cannot be set in " Da.2 Control system" in the positioning data
when "continuous path control" has been set in " Da.1 Operation pattern" of
the immediately prior positioning data. (For example, if the operation pattern of
positioning data No. 1 is "continuous path control", fixed-feed control cannot
be set in positioning data No. 2.) An axis error "Continuous path control not
possible" (error code: 516) will occur and the machine will carry out a
deceleration stop if this type of setting is carried out.
Summary of Contents for D75D4
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 58: ...2 10 MELSEC Q 2 SYSTEM CONFIGURATION MEMO ...
Page 65: ...3 7 MELSEC Q 3 SPECIFICATIONS AND FUNCTIONS ...
Page 139: ...5 35 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 238: ...5 134 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Page 251: ...6 13 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 254: ...6 16 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 255: ...6 17 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 256: ...6 18 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 259: ...6 21 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 260: ...6 22 MELSEC Q 6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL ...
Page 292: ...7 8 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS ...
Page 294: ...7 10 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS ...
Page 298: ...MEMO ...
Page 462: ...9 140 MELSEC Q 9 MAJOR POSITIONING CONTROL MEMO ...
Page 490: ...10 28 MELSEC Q 10 HIGH LEVEL POSITIONING CONTROL MEMO ...
Page 524: ...11 34 MELSEC Q 11 MANUAL CONTROL Creating the program ...
Page 666: ...14 24 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO ...
Page 675: ...15 9 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Page 716: ...15 50 MELSEC Q 15 TROUBLESHOOTING MEMO ...
Page 725: ...Appendix 9 MELSEC Q APPENDICES MEMO ...
Page 878: ...Appendix 162 MELSEC Q APPENDICES 6 QD75D4N 90 23 27 4 12 98 4 46 Unit mm ...
Page 879: ...Appendix 163 MELSEC Q APPENDICES 7 QD75P1 QD75P2 QD75P4 27 4 23 98 90 4 46 unit mm ...
Page 880: ...Appendix 164 MELSEC Q APPENDICES 8 QD75D1 QD75D2 QD75D4 27 4 23 90 12 98 4 46 unit mm ...
Page 893: ...WARRANTY ...
Page 895: ......