ABB CL Series Applications Manual page 158

1SVC 440 795 M0100
1
2
3
4
t t
s s
D
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.
1
2
3
4
t t + t
s 1
B
A
Figure 64: Signal diagram of timing relay, off-delayed
(with and without random switching)
Timing relays
t t
F s
F
E
= t t
2 s s
C
t
D
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