Eaton PROFIBUS-DP EZ204-DP User Manual Page 94

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Wiring with EZ
MN05013003E90
Rules for wiring relay coils
To ensure a clear overview of all relay states only assign the
same coil function once to a relay (
ä, S, R). However,
retentive coil functions such as
ä, S, R can be used several
times if required by the circuit diagram logic.
Exception: When using jumps to structure a circuit diagram,
this coil function can also be used effectively several times.
Relay with contactor function
Ä
The output signal follows immediately after the input signal
and the relay acts as a contactor.
Figure 40: Signal diagram of contactor function
Representation in EZ:
Output relays Q:
ÄQ1 to ÄQ8 (depending on type)
•Markers M, N:
ÄM1 to ÄM16, ÄN1 to ÄN16
Function relays (Text) D: ÄD1 to ÄD16
Output relays S: ÄS1 to ÄS8
Jumps: Ä:1 to Ä:8
J
The coil functions Ä, Å, è, È, (contactor, contactor negated,
cycle pulse negative, rising edge) must only be used once
for each relay coil. The last coil in the circuit diagram
determines the status of the relay.
When controlling a contactor or relay, the control coil is only
present once. If you are creating parallel circuits, use Set,
Reset as a coil function.
on
on
EZ500_700.book Page 90 Tuesday, May 3, 2005 5:15 PM
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