IDEC SmartRelay FL1A-H12RCE, Manual

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IDEC SmartRelay Functions
4-18
IDEC SmartRelay User’s Manual
4.4.1 On Delay
Brief description
If the on delay is selected, the output is not switched over
until a definable time period has elapsed.
Symbol in
IDEC
SmartRelay:
Connection Description
Input Trg Use Trg (trigger) input to
start the time for the on
delay.
Parameter T T is the time after which the
output is switched on (output
signal is switched from 0 to
1).
Output Q Q switches on after
expiration of the defined time
T if Trg is still set.
Parameter T
Please note the parameter values for the T parameter in
Section 4.3.2.
Timing diagram
Trg
T T
T
a
starts
Q
The bold part of the
timing diagram ap -
pears in the on-delay
symbol.
Description of function
When the state at the Trg input changes from 0 to 1, the
time T
a
begins to elapse (T
a
is the current time in IDEC
SmartRelay).