Rockwell Automation 1760-xxxx Pico GFX-70 Controllers User Manual - Manual (Page 257)

Publication 1760-UM002B-EN-P - March 2005
Wiring with Pico GFX-70 4-147
Figure 4.69 Signal diagram of timing relay, off-delayed
(with/without random switching with/without retriggering)
• Range E:
The Trigger coil drops out twice. The set time t
s
consists of t
1
plus t
2
(switch function not
retriggerable).
• Range F:
The Trigger coil drops out twice. The actual time t
1
is cleared and the set time t
s
elapses
completely (retriggerable switch function).
Timing relay, on-delayed and off-delayed with and without random switching
Time value >I1: On-delayed time
Time value >I2: Off-delayed time
Random switching:
The contact of the timing relay switches randomly within the setpoint value
range.
E
t
1
+ t
2
= t
s
1
2
4
3
t
s
F
t
1