Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 258)

Publication 1760-UM002B-EN-P - March 2005
4-148 Wiring with Pico GFX-70
Figure 4.70 Signal diagram of timing relay, on and off-delayed 1
1: trigger coil T..EN
2: stop coil T..ST
3: reset coil T..RE
4: switching contact (make contact) T..Q1
t
s1
: pick-up time
t
s2
: drop-out time
• Range A:
The relay processes the two times without any interruption.
• Range B:
The trigger coil drops out before the on-delay is reached.
• Range C:
The Stop coil stops the timeout of the on-delay.
• Range D:
The stop coil has no effect in this range.
A B C
1
2
4
3
D
t t
s1
t
s2
t
s2
t
s1
t
s2
t
1
+ t
2
= t
s1