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timohei.net / My Courses / TL110103 PLC Control 3 cu / Excercise: Valve Control /
PLC I/O: Outputs

Paikallisohjauspaneeli
Venttiilin ohjauskotelo = Valve Local Control Panel
K = Closed
A = Opened
OHJAUS = CONTROL
LIIKKUU = MOVING
VALVONTA-AIKA = DISCREPANCY
  1. "MOVING"
    • An Indicator Lamp on the local panel
    • When the valve is moving the lamp blinks with a frequency of 1 Hz (i.e. when "CLOSE CONTROL" or "OPEN CONTROL" is activated
  2. "CLOSE CONTROL"
    • A control switch output connected to the Electric Center
    • The switch is closed during the whole time that valve is driven to closed position
  3. "OPEN CONTROL"
    • A control switch output connected to the Electric Center
    • The switch is closed during the whole time that valve is driven to opened position
  4. "DISCREPANCY ALARM"
    • An Indicator Lamp on the local panel
    • The lamp blinks when there is a discrepancy alarm

Updated 14.3.2007

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