IDEC FL1E-H12RCA User Manual page 195

Reducing the input response of the analog comparator
You can selectively delay the output of an analog
comparator by means of the "On-delay" and "Off-delay"
special functions. With on-delay, output Q is only set if the
pulse width of the triggering signal at input Trg (=analog
comparator output) is longer than the on-delay time.
Using this method, you will obtain a virtual hysteresis and
reduce the input response to short signals.
Function block diagram
AI1
AI
AI2
AI
IDEC SmartRelay Manual
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Analog comparator
B1
On-delay
A
B2
IDEC SmartRelay functions
Off-delay
B3
Q1
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