Rievtech ELC-12AC-R-N, User Manual

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When input En is reset 0, a random time (off delay time) between 0 s and T
L
is set and triggered.
If the status at input En is 0 at least for the duration of the off delay time, the output Q is reset to 0 when
the off delay time has expired.
The time is reset if the status at input En returns to 1 before the on delay time has expired.
5.5.9 Stairway lighting switch
Fashion: Classic:
Short description
The edge of an input pulse triggers a configurable time. The output is reset when this time has expired.
An off warning can be output prior to the expiration of this time.
Parameter
The off-delay time T, the pre-warning time T! and the pre-warning period T!L can be provided by the
actual value of another already-programmed function:
Analog comparator: Ax – Ay
Analog trigger: Ax
Analog amplifier: Ax
Analog multiplexer: AQ
Analog ramp: AQ
Analog math: AQ
PI controller: AQ
Data latching relay: AQ
Up/Down counter: Cnt
The value of
＂Ｔ＂
can be set/modified in parameter mode. For information about how to modify, refer
Connection Description
Input Trg You trigger the time (off delay) for the stairway switch with
a signal at input Trg (Trigger).
Parameter T: The output is reset (1 to 0 transition when the time T
has expired.
T
!
Determines the triggering time for the pre-warning.
T
!L
determines the length of the pre-warning time.
Retentivity set (on) = the status is retentive in memory.
Output Q Q is reset after the time T has expired. A warning signal can
be output before this time has expired.