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Automating Manufacturing Systems - Process Control and ...

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plc wiring - 3.28<br />

button inputs. b) Redraw the outputs so that it uses a relay output card.<br />

I:0/0<br />

I:0/1<br />

I:0/2<br />

I:0/3<br />

I:0/4<br />

I:0/5<br />

V<br />

O:0/0<br />

O:0/1<br />

O:0/2<br />

O:0/3<br />

O:0/4<br />

12VDC<br />

+<br />

+<br />

VDC<br />

I:0/6<br />

I:0/7<br />

com<br />

O:0/5<br />

O:0/6<br />

O:0/7<br />

4. Draw an electrical wiring (ladder) diagram for PLC outputs that are listed below.<br />

- a solenoid controlled hydraulic valve<br />

- a 24Vdc lamp<br />

- a 120 Vac high current lamp<br />

- a low current 12Vdc motor<br />

5. Draw an electrical ladder diagram for a PLC that has a PNP <strong>and</strong> an NPN sensor for inputs. The<br />

outputs are two small indicator lights. You should use proper symbols for all components. You<br />

must also include all safety devices including fuses, disconnects, MCRs, etc...<br />

6. Draw an electrical wiring diagram for a PLC controlling a system with an NPN <strong>and</strong> PNP input<br />

sensor. The outputs include an indicator light <strong>and</strong> a relay to control a 20A motor load. Include<br />

ALL safety circuitry.

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