11.07.2015 Views

Programmable Controllers: Theory and Implementation

Programmable Controllers: Theory and Implementation

Programmable Controllers: Theory and Implementation

SHOW MORE
SHOW LESS
  • No tags were found...

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

ntroduction to PLC Programming <strong>and</strong> <strong>Implementation</strong>—from relay logic to PLC logic271L1StopStartTR1L2OL23TR1TR1TR1S1M14M1TR1S156S1S2S228 The field input devices are the start push button, stop push button, jog/run selector switch,<strong>and</strong> forward/reverse selector switch. The speed potentiometer will be replaced by an analogoutput in the PLC implementation.29 (a)CoolantPump MotorHydraulicPump MotorSpindleMotorM3M2M1OLsOLsOLsDisconnectSwichFuses1M2M3ML1L2F1StopStartPLC FaultContact 1M2OLsM2 M3M3OLsSCRPL1PLC FaultContact 2PLC Fail AlarmPLCSCRIndustrial Text & Video Company www.industrialtext.com 1-800-752-839870

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!