IDEC SmartRelay functions
IDEC SmartRelay Manual 147
Timing diagram
Functional description
A 0 to 1 signal transition at input Trg sets output Q. The next
1 to 0 transitio
n at Trg retriggers the current time T
a
, and
output Q remains set.
Output Q is reset when T
a
= T. You can output a warning
signal before the off-delay time (T - T
!
) has expired to reset
Q for the time of the pre-warning period T
!L
.
A further one-shot at input Trg during T
a
retriggers the time
T
a
.
If retentivity is not set, output Q and the expired time are
reset af
ter a power failure.
Setting the Par parameter
Note the defaults specified in Chapter 4.3.2.
Note
All times must have the same timebase.
View in programming mode (example):
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