3.8 I/O Signal Controls and Function
166
(Example) Repetition of ST1
ĺ
ST2
ĺ
ST1
ĺ
…
Insert timer
ǻ
t if necessary.
ǻ
t: Time required to certainly reach the target position after the position sensing output LS1 or 2 is turned ON.
[Example of stop position when the ST* signal is turned OFF by the LS* signal]
If the positioning width is set at a position before the original deceleration start position, the
actuator cannot reach the target position.
Caution: (1) If the ST* signal for the position is turned ON after the completion of
positioning, the LS* signal remains ON.
(2) Both the LS* and PEND signals are set to ON in the positioning width zone.
Accordingly, they may be turned ON under operation of the actuator if a large
positioning width is set.
(3) LS* signal would not be output if the positioning width is set less than the
minimum resolution.
Start signal
ST1
(PLC
ĺ
Controller)
Turned ON after
entering into
positioning width zone.
Target position
Position sensing output
LS1
(Controller
ĺ
PLC)
Start signal
ST2
(PLC
ĺ
Controller)
Position sensing output
LS2
(Controller
ĺ
PLC)
ǻ
t
ǻ
t
ǻ
t
Start signal
ST1
(PLC
ĺ
Controller)
Turned ON after
entering into
positioning width zone.
Target
position
Position sensing output
LS1
(Controller
ĺ
PLC)
Operation of actuator
Stop before target position
Orignal deceleration
start position
Positioning
width
Deceleration start
Speed
Move
distance
Содержание Msep
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