544
(2) Control precautions
(a) Control is carried out as follows at the speed change during continuous path
control.
• When no speed designation (current speed) is provided in the next positioning data [a], the next
positioning data is controlled at the "[Cd.14] New speed value".
• When a speed designation is provided in the next positioning data [b], the next positioning data is
controlled at its command speed ([Da.8]).
(b) When changing the speed during continuous path control, the speed change will be
ignored if there is not enough distance remaining to carry out the change.
(c) When the speed is changed by setting "[Cd.14] New speed value" to "0", the
operation is carried out as follows.
When "[Cd.15] Speed change request" is turned ON, the speed change 0 flag ([Md.31] Status: b10) turns
ON. (During interpolation control, the speed change 0 flag on the reference axis side turns ON.)
The axis stops, but "[Md.26] Axis operation status" does not change, and the BUSY signal remains ON. (If a
stop signal is input, the BUSY signal will turn OFF, and "[Md.26] Axis operation status" will change to
"Stopped".)
In this case, setting the "[Cd.14] New speed value" to a value besides "0" will turn OFF the speed change 0
flag (Md.31 Status: b10), and enable continued operation.
Positioning control
P1
Designated speed in P2
Cd. 14 New speed value
Next control
P2
Speed change
command
Designated speed in P1
[a] When no speed designation
(current speed) is provided.
[b] When a speed designation
is provided.
New speed value
Speed change
request
Positioning operation
1000
Speed change 0 flag
0
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Cd.14
Cd.15
Md.31
Positioning start
signal
[Y10,Y11,Y12,Y13]
BUSY signal
[XC,XD,XE,XF]
status: b10
Содержание MELSEC-L LD75D
Страница 1: ...MELSEC L LD75P LD75D Positioning Module User s Manual LD75P1 LD75P2 LD75P4 LD75D1 LD75D2 LD75D4 ...
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Страница 47: ...45 CHAPTER 2 SYSTEM CONFIGURATION 2 2 1 General Image of System 1 When connected to a CPU module ...
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Страница 267: ...265 CHAPTER 6 PROGRAM USED FOR POSITIONING CONTROL 6 6 4 Positioning Program Examples ...
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Страница 272: ...270 Z ABRST1 instruction execution ...
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Страница 685: ...683 APPENDICES A Appendix 1 Function Update Appendix 1 1 Function comparison Memo ...
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Страница 806: ...804 5 LD75D2 Unit mm 6 LD75D4 Unit mm 45 4 90 4 95 4 45 45 DIN rail center 45 4 90 4 95 4 45 45 DIN rail center ...
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