IDEC SmartRelay FL1A-B10RCA, Manual

Page: 91 / 209

IDEC SmartRelay Functions
4-23
IDEC SmartRelay User’s Manual
Timing diagram
Description of function
When the state at the input Trg changes from 0 to 1, the
timed period T
H
elapses.
If the state at the input Trg remains 1 at least for the
duration of the parameterized time T
H
, the output is set to 1
after the time T
H
has elapsed (there is a delay between the
input being switched on and the output coming on).
If the state at the input Trg switches back to 0 before the
time T
H
has elapsed, the time is reset.
When the state at the input changes to 0 again, the timed
period T
L
elapses.
If the state at the input Trg remains at 0 at least for the
duration of the parameterized time T
L
, the output is set to 0
after the time T
L
has elapsed (there is a delay between the
input being switched off and the output going off).
If the state at the input Trg switches back to 1 before the
time T
L
has elapsed, the time is reset.
In the event of a power failure, the elapsed time is reset.
Trg
T T
T
H
starts
Q
T
T
L
starts
The bold part of the
timing diagram appears
in the on/off delay
symbol.