Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 145)

Publication 1760-UM002B-EN-P - March 2005
Wiring with Pico GFX-70 4-35
A coil is automatically switched off if the power fails and if STOP mode is
active. Exception: Retentive coils retain signal 1 (see Retention on page 7-22).
“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 4.20 Signal diagram of “Set” and “Reset”
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 4.21 Simultaneous triggering of Q 01
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
I 05---------------------------S Q 01
I 10---------------------------R Q 01