Eaton easySafety, Manual

Page: 151 / 695

Working with contacts and
relays
147
02/16 MN05013001Z EN
Set
S
and Reset
R
coil function
The Set
S
and Reset
R
coil functions are normally used in
pairs.
The relay picks up when the coil is set (A) and remains in this
state until it is reset (B) by the coil function.
The supply voltage is switched off (C), the coil does not have
a retentive effect.
Figure 60: Set and Reset signal diagram
If both coils are triggered at the same time, priority is given
to the coil in the circuit diagram with the higher circuit
connection number. This is shown in the above signal
diagram in section B.
Figure 61: Simultaneous triggering of
QS01
In the example above, the reset coil has priority with
simultaneous triggering of the set and reset coils.
on
on
S
R
on
A B C
IS05---------------------------S QS01
IS10---------------------------R QS01