The Open Lamp will be illuminated if the door is in the Fully Open position. The Ajar Lamp will be illuminated if the door is NOT in either the fully closed or fully opened position.
Under no circumstance will both motor windings be energized at the same time. If the Door is already fully closed, pressing the Close Switch will not energize the motor. If the Door is already fully opened, pressing the Open Switch will not energize the motor. The closing operation will continue to completion even if the Switch is released. Pressing the Close Switch will cause the door to Close if not already fully shut. The opening operation will continue to completion even if the switch is released. Pressing the Open Switch will cause the door to Open if not already fully open. Click Help-Student Exercises-'Door Simulation.applying Relay Logic' Program the PLC with the following control specifications: Door movement will halt immediately when the Stop Switch is initially pressed, and will remain halted if the switch is released. Read and follow the Door Simulation student programming exercise #2 found under the Help menu of LogixPro. Commercial Garage Door Control - PLC Lab Instructions The objective of this PLC lab activity is to implement a commercial garage door control on the LogixPro simulator using ladder logic for the Allen-Bradley SLC/500 series PLC.
