Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 256)

Publication 1760-UM002B-EN-P - March 2005
4-146 Wiring with Pico GFX-70
Figure 4.68 Signal diagram of timing relay, off-delayed
(with/without random switching with/without retriggering)
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 time elapses after the trigger coil is deactivated.
• Range B:
The Stop coil stops the time from elapsing.
• Range C:
The Reset coil resets the relay and the contact. After the Reset coil drops out, the relay
continues to work normally.
• Range D:
The Reset coil resets the relay and the contact when the function block is timing out.
A B
t
1
+ t
2
= t
s
t
s
C
1
2
4
3
t
s
D
t