9 - 47
MELSEC-A
9 MAIN POSITIONING CONTROL
9.2.8 Speed control
In "speed control"(" Da.2 Control method" = Forward run: speed control, Reverse
run: speed control), control is carried out in the axis direction in which the positioning
data has been set by continuously outputting the speed set in " Da.7 Command
speed" until the input of a stop command.
The two types of speed control are "Forward run: speed control" in which the control
starts in the forward run direction, and "Reverse run: speed control" in which control
starts in the reverse run direction.
Operation chart
The following chart shows the operation timing for speed control. The "in speed
control flag" ( Md.40 Status: b0) is turned ON during speed control.
t
V
BUSY signal
OFF
ON
Positioning start signal
OFF
ON
Positioning complete signal
OFF
Stop command
OFF
ON
Does not turn ON even
when control is stopped
by stop command
OFF
ON
Md.40 Status:b0
In speed control flag
Da. 7 Command speed
[Y10,Y11,Y12]
[X4,X5,X6]
[X7,X8,X9]
Fig. 9.9 Speed control operation timing
Summary of Contents for A1SD75M1
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Page 27: ...1 5 MELSEC A 1 PRODUCT OUTLINE MEMO...
Page 42: ...1 20 MELSEC A 1 PRODUCT OUTLINE MEMO...
Page 52: ...2 10 MELSEC A 2 SYSTEM CONFIGURATION MEMO...
Page 111: ...5 21 MELSEC A 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 115: ...5 25 MELSEC A 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 123: ...5 33 MELSEC A 5 DATA USED FOR POSITIONING CONTROL MEMO...
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Page 193: ...5 103 MELSEC A 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 276: ...5 186 MELSEC A 5 DATA USED FOR POSITIONING CONTROL MEMO...
Page 332: ...7 18 MELSEC A 7 MEMORY CONFIGURATION AND DATA PROCESS MEMO...
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Page 422: ...9 64 MELSEC A 9 MAIN POSITIONING CONTROL MEMO...
Page 446: ...10 24 MELSEC A 10 ADVANCED POSITIONING CONTROL MEMO...
Page 472: ...11 26 MELSEC A 11 MANUAL CONTROL MEMO...
Page 576: ...12 104 MELSEC A 12 CONTROL AUXILIARY FUNCTIONS MEMO...
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