Instrumentation - Process Training Control System 09/28/09...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
09/28/09 Process Training Control System - TDO/TEC/INS - JC Michaud
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
TDO/TEC/INS JC Michaud- Stage Process Instrumentation- 28/09/09 2 PID Algorithm = Commande Control loop Philosophy Analog Sensors Measurement Valves Command ) ( t K ε P + dt t ) ( I dt t d ) ( + D Set Point Error ) ( t
Background image of page 2
TDO/TEC/INS JC Michaud- Stage Process Instrumentation- 28/09/09 3 Uninterruptible Electrical 24VDC Power Supply Input Mod Analog CPU: Data processing PLC or Controller Typical Instruments 1- Safety valve Normally Active :Return in safe position (Opened or closed) when de energised : loss of Hydraulic or Instrument air or on failure power supply and/or control system failure. 2- Safety valve Normally Not Active :Not operational when de energised : loss of Hydraulic or Instrument air or on failure power supply and/or control system failure Digital Sensor (Switches) PSL,LSL, … ZIO,ZIC,…. Analogical Sensor PT,FT,TT,ST…. F&GD, TT I/P Control Valve PCV,TCV,FCV…. EV Safety Valve ESDV,SDV,…. Hydraulic Power Unit or Instrument Air gas Compressor Unit Output Mod Analog Output Mod Digital Uninterruptible Electrical 220VAC Power Supply Input Mod Digital To be configured according to Project specifications: Control logic, Safety charts. .Etc.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
TDO/TEC/INS JC Michaud- Stage Process Instrumentation- 28/09/09 4 Single PLC or Controller Dual PLC or Controller Triplicate PLC or Controller Safety loop Philosophy for Normally Active System Hydraulic Power Unit or Instrument Air gas Compressor Unit EV Safety Valve Normally active Uninterruptible Electrical 24VDC Power Supply Analog Sensor Input Mod Analog CPU Output Mod Digital Watch Dog & Analog Sensor Input Mod Analog CPU Output Mod Digital Watch Dog & λ 10-4 Safety Integrity Level SIL 4 10 -4 Probability of a dangerous failure per year SIL3 10 -4 < 10 -3 SIL2 10 -3 < 10 -2 SIL1 10 -2 < 10 -1 Analog Sensor Input Mod Analog CPU Output Mod Digital Watch Dog &
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/28/2009 for the course X RAY MECH EMP5209 taught by Professor Hui-leo-chen during the Fall '09 term at University of Ottawa.

Page1 / 12

Instrumentation - Process Training Control System 09/28/09...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online