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39
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No.JXC
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-OMU0030-A
8. Operations
8.1 Return to origin
Origin return is necessary after turning on the power supply in this controller.
By recognizing the stroke end by return to the origin, positioning operation of the electric actuator
becomes possible.
(1) Return to origin operation
When power is supplied to the controller, the first command to move toward the stroke end is
recognized as the return to origin command.
Controller speed and acceleration
setting switches are ignored. The slider of the electric
actuator moves toward the specified direction with the speed and acceleration of the electric actuator
itself.
After that, the electric actuator keeps pushing the stroke end.
When the electric actuator keeps pushing the stroke end for several seconds, the controller
recognizes the current position as the stroke end and the return to origin is completed.
The stop position in all position numbers doesn't change regardless of the direction of the return to
origin.
The speed of the return to origin depends on the electric actuator. Refer to
“10. Initial setting value
of electric actuator (LEM series)”
for the default setting of the return to origin.
Commands the return to origin
↓
Drives to commanded direction
↓
Keeps pushing the storke end
↓
Recognizes as the stroke end (Completed)
Recognizes
the stroke end
Electric actuator
Motor
Starting point
Table
Return to origin commanded to end side
End side
Table
Electric actuator
Motor
Starting point
Recognizes the
stroke end
Return to origin commanded to motor side
Motor side
