Name
Functional requirements
Transportation trolley
The PLC control and adjustment of a transport trolley: it is controlled by the "forward" button SB1 (X1) and the "back" button SB2 (X2), and the control of the button SB3 (X3) stops in situ. "Forward output" Y9, "Reverse output" Y10. Specific requirements:
When the car is in its initial position and the car has no material, it is required to start by pressing SB1 and the car will advance to A by itself. After the arrival, the A position switch SQ1 (X4) stops and starts loading, indicated by the lamp L1 (Y11). After the end of 7S, the L1 light is turned off; the car automatically retreats to B. After the limit of SQ5 (X5) arrives, the vehicle starts to discharge, L2 (Y12) is indicated, L2 is turned off after 5S, and the car automatically moves forward. , to A to enter the next cycle. The start button on the move should be invalid.
Schematic diagram:
IREXMAP ladder: