Basic circuits
179
1SVC 440 795 M0100
Parallel circuit operating like a series connection of
n/o contacts
A series circuit with more than three contacts (n/o contacts)
can be implemented with a parallel circuit of n/c contacts on
a negated coil.
In the CL circuit diagram you can switch as many rungs in
parallel as you have rungs available.
Table 19: Parallel connection of n/c contacts on a negated coil
i1u------ÅQ1
i2s
i3s
I2s
I3k
I1 I2 I3 I4 I5 Q1
000000
000010
000100
000110
001000
001010
001100
001110
01000
0
010010
010100
010110
011000
……………0
……………0
111111