IAI America ACON-SE - Manual (Page 66)

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4. Description of Operating Functions
4.4.2 Home Return Operation
Since this controller adopts the incremental position detector (encoder), mechanical coordinates will be lost if the
power is cut off.
Because of this, it is required to establish the mechanical coordinates by performing home return operation
immediately after power-on.
To perform home return operation, input the home return command (HOME).
Operation timing
PLC processing 1: When the start button is pressed, the home return command signal (HOME) turns
ON.
Operation: [1] The actuator starts to move to the mechanical end near the home.
[2] After hitting the mechanical end the actuator turns back, and stops temporarily at the
home position.
o The home return completion signal (HEND) turns ON.
PLC processing 2: The home return command signal (HOME) turns OFF.
PLC processing 3: Continuous operation starts.
Caution: When performing home return operation, pay attention to the following:
[1] Confirm that there is no obstacle located in the direction of home return.
[2] Should there be an obstacle in the direction of home return, temporarily move the
actuator in the home direction and remove the obstacle.
>@ :KHQWKH+20(VLJQDOLV³´WKH3(1'VLJQDOEHFRPHV³´DQGWKH029(RXWSXW
VLJQDOEHFRPHV³´
5HWXUQWKH+20(VLJQDOWR³´DIWHUFRQILUPLQJWKDWWKH+(1'KDVEHFRPH³´ZKLOHWKH
+20(LV³´
Home return command (HOME)
Home return completion (HEND)
Position complete (PEND)
0RYLQJ 029(
Actuator movement
1 msec or less
Start of movement Mechanical
end Home
position