User manual

Working with contacts and relays
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Impulse relay ä
The relay coil switches whenever the input signal changes
from 0 to 1. The relay behaves like an impulse relay.
Figure 44: Signal diagram of impulse relay
Representation in EZ:
• Output relays Q:
äQ1 to äQ8 (depending on type)
•Markers M:
äM1 to äM16
• Function relays (Text) D: äD1 to äD8
• Relays S: äS1 to äS8
on
on
J
A coil is automatically switched off if the power fails and if
STOP mode is active. Exception: Retentive coils retain
signal 1 (
J section “Retention (non-volatile data storage)”
from page 226).
EZ500_700.book Page 93 Tuesday, May 3, 2005 5:15 PM