Timing relays
155
1SVC 440 795 M0100
Figure 63: Signal diagram of timing relay, on-delayed
(with and without random switching)
• Range D: The stop coil is inoperative after the time has elapsed.
• Range E: The reset coil resets the relay and the contact.
• Range F: The reset coil resets the time during the timeout
sequence. After the reset coil drops out, the time elapses
normally.
Timing relay, off-delayed with and without random
switching
Random switching: The contact of the timing relay switches
randomly within the setpoint value range.
Figure 64: Signal diagram of timing relay, off-delayed
(with and without random switching)
t
F
D
E
t
s
1
2
4
3
t
s
F
t
s
A
B
t
1
+ t
2
= t
s
t
s
C
1
2
4
3
t
s
D
t
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