9 - 114
Chapter 9 Major Positioning Control
Operation chart
The following chart shows the operation timing for position-speed switching control.
The "in speed control" flag (
Md.31
Status
: b0) is turned ON during speed control of
position-speed switching control.
[LD77MS4 operation example]
• When using the external command signal [DI] as position-speed switching signal
Position-speed switching
enable flag
Cd.26
t
V
Positioning start signal
[Y10, Y11, Y12, Y13]
OFF
ON
Command speed
BUSY signal
[XC, XD, XE, XF]
OFF
ON
Positioning complete signal
[X14, X15, X16, X17]
OFF
OFF
ON
Position
control
Speed control
OFF
ON
OFF
ON
In speed control flag
( Md.31 )
Status: b0
Da. 8
OFF
ON
Axis stop signal (stop command)
[Y4, Y5, Y6, Y7]
Does not turn ON even
when control is stopped
by stop command.
Position-speed switching signal
(External command signal (DI))
Cd.45 Speed-position switching
device selection
Setting details are taken in at positioning start.
0
(Note): Refer to Section 3.3 for input/output signal of LD77MS16.
Fig. 9.18 Position-speed switching control operation timing
Содержание MELSEC-L Series
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Страница 253: ...5 113 Chapter 5 Data Used for Positioning Control MEMO ...
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