Wednesday 24 October 2012

PLC Motor Control


BASIC OPERATION:
the control of a machine which is required to direct 10 apples
along the conveyor for packaging in the box. The operations are as follows:
• When pressing the start button, the conveyor takes the box up to limit switch
(S1) and the motor stops. Then the motor for apple conveyor start moving.
• When counter has counted 10 apples, the motor for box conveyor will
activated and limit switch (S2) reset the counter and the operation is repeated
until the stop button is pressed.

LADDER DIAGRAM

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