User manual

Timing relays
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Timing relay, single pulse
Figure 70: Signal diagram of timing relay, single pulse 1
1: trigger coil TTx
2: Stop coil HTx
3: Reset coil RTx
4: switch contact (make contact) Tx
• Range A: The trigger signal is short and is lengthened
• Range B: The Trigger signal is longer than the set time.
• Range C: The Stop coil interrupts the timing out of the set time.
Figure 71: Signal diagram of timing relay, single pulse 2
• Range D: The Reset coil resets the timing relay.
• Range E: The Reset coil resets the timing relay. The Trigger coil
is still activated after the Reset coil has been deactivated and the
time is still running.
A B
t
1
+ t
2
= t
s
t
s
t
s
C
1
2
4
3
t
D
E
t t
s
1
2
4
3
EZ500_700.book Page 161 Tuesday, May 3, 2005 5:15 PM