8 - 10
MELSEC-Q
8 OPR CONTROL
8.2.5 OPR method (3): Count method 2)
The following shows an operation outline of the "method 2)" OPR method.
The "count method 2)" method is effective when a "zero signal" cannot be received.
(Note that compared to the "count method 1)" method, using this method will result in
more deviation in the stop position during machine OPR.)
Operation chart
1)
The machine OPR is started.
(The machine begins the acceleration designated in "
Pr.51
OPR acceleration time selection", in the
direction designated in "
Pr.44
OPR direction". It then moves at the "
Pr.46
OPR speed" when the
acceleration is completed.)
2)
The machine begins decelerating when the near-point dog ON is detected.
3)
The machine decelerates to the "
Pr.47
Creep speed", and subsequently moves at that speed.
4)
The command from the QD75 will stop and the OPR will be completed when the machine moves the
movement amount set in "
Pr.50
Setting for the movement amount after near-point dog ON " from the
near-point dog ON position.
Md.21 Machine feed value
t
V
ON
OFF
ON(1)
OFF(0)
ON(1)
ON
OFF
0
OFF(0)
Pr. 46 OPR speed
Pr. 47 Creep speed
Pr.50 Setting for the movement amount
after near-point dog ON
Md.34 Movement amount after near-point dog ON
Leave sufficient distance from the OP
position to the near-point dog OFF
OPR start
In OPR
Inconsistent
Value the machine moved is stored
Inconsistent
Md.34 Movement amount
after near-point dog ON
Md.20 Current feed value
OPR request flag
[ Md.31 Status : b3]
OPR complete flag
[ Md.31 Status : b4]
Md.26 Axis operation status Standing by
Standing by
Value of .
OP address
1
1
Near-point dog
Fig. 8.14 Count method 2) machine OPR
Содержание QD75M1
Страница 17: ...MEMO...
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Страница 98: ...5 11 MELSEC Q 5 DATA USED FOR POSITIONING CONTROL MEMO...
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Страница 328: ...7 7 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO...
Страница 332: ...7 11 MELSEC Q 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO...
Страница 339: ...MEMO...
Страница 529: ...11 36 MELSEC Q 11 MANUAL CONTROL MEMO...
Страница 621: ...12 92 MELSEC Q 12 CONTROL SUB FUNCTIONS MEMO...
Страница 647: ...14 18 MELSEC Q 14 DEDICATED INSTRUCTIONS MEMO...
Страница 755: ...Appendix 2 MELSEC Q APPENDICES MEMO...
Страница 758: ...Appendix 5 MELSEC Q APPENDICES Axis address mm inch degree PLS Axis address mm inch degree PLS...
Страница 764: ...Appendix 11 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 0 0...
Страница 766: ...Appendix 13 MELSEC Q APPENDICES Initial value Axis 1 Axis 2 Axis 3 Axis 4 Remarks 3 0 0H 0H 80H 0000H 1 255 0 1 5H...
Страница 879: ...Index 14 MEMO...