IAI America ACON-CG - Manual (Page 110)

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7. Operation <Practical Steps>
Speed
Return action
Returned position
250.34 mm
Target position
280 mm
Position where the push &
hold operation completed
290.34 mm
7.4.1 Return Action after Push & Hold by Relative Coordinate Specification
z Positioning mode
The reference position is the target position for the position number used in the applicable push & hold operation.
In the aforementioned example, the actuator moves to the 240-mm position if position No. 2 is set to -40 mm
in the incremental mode (280 – 40 = 240 mm).
z Push & hold mode
The reference position is the position where the push & hold operation completed.
In the aforementioned example, the actuator moves to the 250.34-mm position if position No. 2 is set to -40
mm in the incremental mode and the push & hold operation completed at 290. 34 mm (290.34 – 40 = 250.34
mm).
(Note) In this case, the controller determines that the actuator has missed the work part and thus does not turn
ON the position complete signal.
It is therefore recommended that the zone output signal be used to determine completion of push & hold
operation on the PLC side.
Caution: When the start signal turns ON, the position complete output will turn OFF and the moving
output will turn ON.
Always turn OFF the start signal after confirming that the start signal is currently ON and the
position complete output has turned OFF.
If the actuator has missed the work part, the position complete output will not turn ON as
shown below. The completed position will be output and the moving output will turn OFF.
Command position
Start
Position complete
Moving
Completed position
Actuator movement
Position 1 Position 2 Position 1
Position 1 Position 2 Position 1
If the actuator has missed the load, the
position complete output will not turn ON.
Speed
Speed
Return action
Returned position
240 mm
Position where the push &
hold operation completed
Target position
280 mm