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timohei.net / My Courses / TL110103 PLC Control 3 cu / Exercise: Steam Soot Blower /
Notes

  • Steam flow is started automatically by the Electric Centre - the PLC application program does not have to initiate steam flow.
  • Whenever the soot blower leaves its normal position Steam Flow has to be on, otherwise an alarm is generated
  • All the buttons are equipped with indicator lamps
  • After PLC startup the soot blower is always retracted, if it is not already in its housing
  • The soot blower can be retracted at any time by pushin "IN" button
  • Discrepancy alarm always forces the sooth blower to retract

Updated 2.4.2007

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