IDEC SmartRelay FL1A-H12RCE, Manual

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IDEC SmartRelay Functions
4-28
IDEC SmartRelay User’s Manual
4.4.6 Current Impulse Relay
Brief description
The output is set and reset by a short pulse at the input.
Symbol in
IDEC
SmartRelay
Connection Description
Input Trg Use the Trg input (trigger) to
switch the output Q on and
off.
Input R The input R resets the
current impulse relay and
sets the output to 0.
Parameter Par This parameter is used to
switch retentivity on or off.
Rem:
off = no retentive feature
on = the state can be stored
retentively
Output Q Q switches on when Trg is
sent and remains switched
on until T expires.
Timing diagram
Description of function
Every time the state at the input Trg changes from 0 to 1,
the output Q changes its state, i.e. the output switches on
or off.
Use the R input to reset the current impulse relay to its
initial state (i.e. the output is set to 0).
After power failure the current impulse relay is reset. The Q
output changes to 0 if the retentive feature is not on.
Trg
Q
R
The bold part of the timing
diagram appears in the current
impulse relay symbol.