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Q2) This PLC is being used to start and stop an electric motor, and also to shut it down automatically if any of three "shutdown" conditions occur: • Excessive vibration • Overcurrent (overload heater contact) • High winding temperature Power supply Digital inputs Digital outputs Processo To motor contactor 120 VAC Start Stop. Øo xe Oo v L1 OL2N Com Gnd Com

Q2) This PLC is being used to start and stop an electric motor, and also to shut it down automatically if any of three "shutdown" conditions occur: • Excessive vibration • Overcurrent (overload heater contact) • High winding temperature Power supply Digital inputs Digital outputs Processo To motor contactor 120 VAC Start Stop. Øo xe Oo v L1 OL2N Com Gnd Com

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Q2) This PLC is being used to start and stop an electric motor, and also to shut it down automatically if any of three "shutdown" conditions occur: • Excessive vibration • Overcurrent (overload heater contact) • High winding temperature Power supply Digital inputs Digital outputs Processor To motor contactor o xoOo o xI 120 VAC Start Stop NH OL1 OL2/N X4 Com Gnd Com Vibration contact Temperature contact Overload contact The status of each shutdown contact is as follows: Vibration contact: closed when okay, opens when vibration becomes excessive Overload contact: closed when okay, opens when overloaded Temperature contact: open when okay, closes when hot Draw a PLC ladder-logic program to start and stop this motor.
Transcribed Image Text:Q2) This PLC is being used to start and stop an electric motor, and also to shut it down automatically if any of three "shutdown" conditions occur: • Excessive vibration • Overcurrent (overload heater contact) • High winding temperature Power supply Digital inputs Digital outputs Processor To motor contactor o xoOo o xI 120 VAC Start Stop NH OL1 OL2/N X4 Com Gnd Com Vibration contact Temperature contact Overload contact The status of each shutdown contact is as follows: Vibration contact: closed when okay, opens when vibration becomes excessive Overload contact: closed when okay, opens when overloaded Temperature contact: open when okay, closes when hot Draw a PLC ladder-logic program to start and stop this motor.
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