Section 20.2 - Graphic depiction of latch function window
Hysteresis
Setpoint high
ON delay
OFF delay
Relay latched
Relay latched
Closed
Open
Relay contact (N.O.)
Release not possible (still inside window)
Release not possible (inside hysteresis)
Release not possible (OFF delay still active)
Release possible
Time
Window
ON delay
OFF- delay
Hysteresis
Setpoint low
Graphic Depication of Latch
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