Wiring with the logic relay
182
1SVC 440 795 M0100
Alternatively the latching circuit can also be set up with the
wire break function using the “Set” and “Reset” coil
functions.
Coil Q1 latches if I1 is activated. I2 inverts the n/c contact
signal of S2 and only switches if S2 is activated in order to
disconnect the machine or in the event of a wire break.
Make sure that both coils are wired up in the correct order in
the CL circuit diagram: first wire the S coil and then the R
coil. This will ensure that the machine will be switched off
when I2 is actuated, even if I1 is switched on.
Impulse relay
An impulse relay is often used for controlling lighting, such
as stairwell lighting.
Table 23: Impulse relay
Cycle pulse on rising edge
You can create a cycle pulse on a rising edge if you use the
appropriate coil function.
This is very useful for count pulses, jump pulses.
I1-------SQ1
i2-------RQ1
S1 n/o contact at I1
S2 n/c contact at I2
I1-------äQ1
S1 n/o contact at I1
I1 Status of
Q1
Q1
00 0
01 1
10 1
11 0
I1-------ÈQ1
S1 n/o contact at I1
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