IDEC SmartRelay functions
4.4 Special functions list - SF
IDEC SmartRelay Manual
150
4.4.9 Stairwell light switch
Short description
An input edge triggers a configurable and retriggerable time. IDEC SmartRelay resets the
output after this time expires. IDEC SmartRelay can optionally output a warning signal to
warn of the impending time expiration.
Parameter T, T
and T
L
Note the defaults of the T parameters listed in topic Time response (Page 124).
The actual value of another already-programmed function can provide the off-delay time T,
the pre-warning time T
and the pre-warning period T
L
. ou can use the actual values of the
following functions:
Analog comparator (Page 183)(actual value Ax Ay)
Analog trigger (Page 178) (actual value Ax)
Analog amplifier (Page 191)(actual value Ax)
Analog multiplexer (Page 209)(actual value A)
Analog ramp control (Page 212)(actual value A)
Analog Math (Page 224)(actual value A)
PI controller (Page 216) (actual value A)
Up/down counter (Page 168) (actual value Cnt)
Analog filter (Page 229) (actual value A)
Average value (Page 235) (actual value A)
Max/Min (Page 231) (actual value A)
On-delay (Page 132) (current time Ta)
Off-delay (Page 136) (current time Ta)
On-/off-delay (Page 138) (current time Ta)
Retentive on-delay (Page 140) (current time Ta)
Interval time-delay relay/Pulse output (Page 142) (current time Ta)
Symbol in
IDEC SmartRelay
iring Description
Input Trg A signal at input Trg (Trigger) triggers the off-delay
time for the stairwell light switch.
Parameter T represents the off-delay time of the output (output
signal transition 1 to 0).
T
determines the triggering time for the pre-warning.
T
L
determines the length of the pre-warning signal.
Retentivity:
/ No retentivity
R The status is retentive.
Output IDEC SmartRelay resets after the time T expires.
IDEC SmartRelay outputs a warning signal before this
time expires.
4
7UJ
3DU
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