Rockwell-automation 1760-xxxx Pico GFX-70 Controllers User Manual Manuel d'utilisateur Page 254

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Publication 1760-UM002B-EN-P - March 2005
4-144 Wiring with Pico GFX-70
Figure 4.66 Signal diagram of timing relay, on-delayed
(with and without random switching)
1: trigger coil T..EN
2: stop coil T..ST
3: reset coil T..RE
4: switching contact (make contact) T..Q1
t
s
: setpoint time
Range A:
The set time elapses normally.
Range B:
The entered setpoint does not elapse normally because the trigger coil drops out prematurely.
Range C:
The Stop coil stops the time from elapsing.
t
1
+ t
2
= t
s
t
A
B
t
s
1
2
4
3
C
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