9 - 61
MELSEC-Q
9 MAJOR POSITIONING CONTROL
Circular interpolation error compensation
In circular interpolation control with center point designation, the arc path
calculated from the start point address and arc address may deviate from the
position of the end point address set in " Da.6 Positioning address/movement
amount".
(Refer to "
Pr.41
Allowable circular interpolation error width".)
(1) Calculated error < "
Pr.41
Allowable circular interpolation error width"
Circular interpolation control to the set end point address is carried out while
the error compensation is carried out. (This is called "spiral interpolation".)
Path using spiral interpolation
Center point address
Start point address
Error
Calculated end point
address
End point address
In circular interpolation control with center point designation, an angular
velocity is calculated on the assumption that operation is carried out at a
command speed on the arc using the radius calculated from the start point
address and center point address, and the radius is compensated in proportion
to the angular velocity deviated from that at the start point.
Thus, when there is a difference (error) between a radius calculated from the
start point address and center point address (start point radius) and a radius
calculated from the end point address and center point address (end point
radius), the composite speed differs from the command speed as follows.
Start point radius > End point radius: As compared with the speed without
error, the speed becomes slower as
end point address is reached.
Start point radius < End point radius: As compared with the speed without
error, the speed becomes faster as
end point address is reached.
(2) Calculated error > "
Pr.41
Allowable circular interpolation error width"
At the positioning start, an error "Outside circular interpolation error allowable
limit" (error code: 506) will occur and the control will not start. The machine will
immediately stop if the error is detected during positioning control.
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 ...
Страница 138: ...5 47 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Страница 182: ...5 91 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Страница 188: ...5 97 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
Страница 194: ...5 103 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO ...
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 ...
Страница 275: ...6 22 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Страница 276: ...6 23 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
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Страница 292: ...6 39 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Страница 293: ...6 40 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Страница 294: ...6 41 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Страница 295: ...6 42 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Страница 296: ...6 43 MELSEC Q 6 PLC PROGRAM USED FOR POSITIONING CONTROL ...
Страница 297: ...6 44 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 ...