IDEC SmartRelay functions
IDEC SmartRelay Manual
181
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.
Q1
AI
A
AI
AI1
AI2
B1
B2
B3
Analog comparator
On-delay
Off-delay
Function block diagram
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