IAI America ACON-CY - Manual (Page 83)

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5. Operation Using I/O Signals
Operation timings
PLC processing 1: The rear end move command signal (ST0) and intermediate point move command
signal (ST2) turn OFF, and the front end move command signal (ST1) turns ON.
Operation: [1] The actuator starts moving and upon reaching the front end (160 mm), the actuator
decelerates to the push speed and continues moving at the new speed.
When the actuator contacts the load and the “push-motion completion” condition is
satisfied, the front end positioning complete output (PE1) turns ON.
If the stopped position is between 180 and 185 mm, the zone output signal turns
ON.
PLC processing 2: When the zone output signal turns ON to indicate that the load has been successfully
contacted, the sequence processing is performed in a “condition where the load is
being pushed.”
Once the sequence processing is completed, the front end move command signal
(ST1) turns OFF and the rear rend move command signal (ST0) turns ON.
[2] When the actuator starts moving toward the rear end, the front end positioning
complete output (PE1) turns OFF and the zone output signal also turns OFF
temporarily. Once the actuator returns to the position corresponding to 100 mm,
the zone output signal turns ON again. When the actuator reaches the rear end
thereafter, the rear end positioning complete output (PE0) turns ON.
PLC processing 3: To issue a command to peripheral equipment while the actuator is returning to the rear
end, in order to reduce the tact time, you can use the zone output signal as a trigger
signal (the signal turns ON once the actuator has returned to the position corresponding
to 100 mm).
* If the zone output signal dose not turn ON when the front end positioning complete output (PE1) is ON, the
condition should be interpreted as “missed load” or “abnormal load installation position.”
Front end move
command input (ST1)
Rear end move
command input (ST0)
Front end positioning
complete output (PE1)
Rear end positioning
complete output (PE0)
Zone output
Speed
Time
Sequence
processing
Work
+ direction – direction
Front end
command posit
ion
Rear end Rear end
Positioning band
Stop positi
on u
pon
contact