5. Programming on the device
5.3 Circuit diagram elements
"Set" S and "Reset" R coil functions
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 power supply is switched off (C), the coil is not retentive.
Figure 72: Set and Reset signal diagram
If both coils are triggered at the same time, priority is given to the coil further down in
the circuit diagram. This is shown in the above signal diagram in section B. Has a higher
rung number(The Reset coil in the example above.)
I 05---------------S Q 01
I 10---------------R Q 01
Figure 73: Simultaneous triggering of Q 01
The above example shows the Reset coil with priority when the Set and Reset coil are
triggered at the same time.
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easyE4 11/18 MN050009 EN www.eaton.com
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