IAI America ACON-SE - Manual (Page 74)

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4. Description of Operating Functions
(2) Work is not contacted (missed)
If work is not contacted even though the actuator has moved the distance by the set positioning band (when
the motor current does not reach the current-limiting value during push & hold operation), the positioning
complete signal will not be output. However, the completed position number will be output.
At this time, the PSFL bit of the devic
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(3) Work moves during push & hold operation
(1) Work moves in the pushed direction
If work moves in the pushed direction after push & hold operation has once been completed, the actuator will
push the work within the positioning band.
If the current during movement drops below the current-limiting value during push & hold, the position
complete signal will turn OFF. The signal will turn ON again when the current rises to or above the limiting
value.
(2) Work moves in the opposite direction
(Actuator is pushed back by the reactive force of the work)
If the actuator is pushed back after push & hold operation has once been completed because the actuator
thrust is smaller than the reactive force of the work, the actuator will be pushed back all the way until its
thrust balances out with the reactive force of the work. At this time, the position complete signal will remain
ON.
(Note) If the actuator is pushed back to the target position, an alarm will be generated.
Moving distance
Target position
Positioning band (maximum push amount)
If work is not contacted, the position
complete signal will not be output.
Speed
Moving distance
Target position
Positioning band (maximum push amount)
Speed
If work is moved backward, the actuator will
push it within the positioning band.
Position at which push & hold operation
is initially judged as completed
Target position
Positioning band (maximum push amount)
Speed
Position at which push & hold operation
is initially judged as completed
Moving distance