only when the Start push button was pressed and a workpiece was detected. When the given conditions is satisfied, one relay which is R1 was energized and through a normally open contact, and the on-latch path was made. In second condition another relay R1 which is also normally opened was in series with another relay R2 which is normally closed, both connected to the 5/2- way solenoid impulse valve with spring return which will make the cycle either open or close. The condition requires a slow and variable speed of thrusting and must be initiated with a push button. The condition for the cylinder to retract is to have 4 bars of pressure indication to indicate the stamping. A green light is used to indicate an ongoing operation and redlight if otherwise. The combination of a normally open and normally closed condition differentiates the green and red light. The input conditions along with the pressure sensor and the succeeding rungs are the relaying logic operation . VI. C ONCLUSION
UST: EE524L-T1AY1920-5EEA-G4 4 VII. R EFERENCES Boisset, F. (2018). What’s a PLC (Programmable Logic Controller)? Retrieved from Motor Control Online: - Programmable-Logic-Controller/content_id/2681 Motor Control Tips. (2011, October 7). What are Programmable Logic Controllers (PLCs)? Summary . Retrieved from Motor Control Tips: VIII. A PPENDIX
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- Spring '18
- Kenneth Sinson