ABB CL Series Applications Manual page 90

1SVC 440 795 M0100
Contactor function with negated result
(inverse contactor function)
The output signal is simply an inversion of the input signal;
the relay operates like a contactor with contacts that have
been negated. If the coil is triggered with the 1 state, the coil
switches its n/o contacts to the 0 state.
on
on
Figure 40: Signal diagram of inverse contactor function
Display in the logic relay:
ÅQ1
• Output relays Q:
ÅM1
• Markers M, N:
• Function relays (Text) D:
ÅS1
• Output relays S:
Å:1 Å:8
• Jumps: to
Falling edge evaluation (cycle pulse)
This function is used if the coil is only meant to switch on a
falling edge. With a change in the coil state from 1 to 0, the
coil switches its n/o contacts to the 1 state for one cycle.
on
on
Figure 41: Signal diagram of cycle pulse with falling edge
Working with contacts and
relays
Å
ÅQ8
to (depending on type)
ÅM16 ÅN1 ÅN16
to , to
ÅD1 ÅD16
to
ÅS8
to
è
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