Phoenix Contact IB IL AO 4/U/0-10-ECO handleiding

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IL SYS INST UM E

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Main circuit M1/

segment S1.1

The supply voltage for the bus coupler U

is supplied at the bus coupler (BK). In addition,

the main voltage U

is supplied at the bus coupler or a subsequent power terminal.

The communications power U

and the supply voltage for the analog terminals U

ANA

are

generated from the bus coupler supply and led through the entire station.

Electrical isolation between logic and I/O is created through the separate supply of the

bus coupler supply U

and the main voltage U

If these voltages are not supplied separately (e.g., only the voltage U

, from which

and U

ANA

are also generated), there is no electrical isolation between logic and

I/O.

No terminals are used in segment S1.1.

Segment S1.2 In a segment terminal with fuse, the segment voltage U

for segment S1.2 is automati-

cally tapped from the main voltage U

. This segment circuit is protected by the internal

fuse.

This segment terminal has been specifically used to create a protected segment cir-

cuit without the need for an additional external fuse. If this is not necessary, the ter-

minal does not have to be used. In this case, the connection between U

and U

the bus coupler must be established using a jumper (as shown on the

IB IL 24 PWR/IN-PAC terminal) or a switch (as shown on the IB IL 24 SEG-PAC ter-

minal).

Main circuit M2/

segment S2.1

The supply voltage for the power-level terminals and the subsequent terminals should be

supplied separately. For this, a new power terminal (e.g., IB IL 24 PWR/IN-PAC) is used,

which supplies the supply voltage U

Using a jumper, the segment voltage U

for segment S2.1 is tapped from the main voltage

at this terminal.

Segment S2.2 The segment voltage U

is provided at the IB IL 24 SEG-PAC segment terminal via a

switch. Output terminals installed here can therefore be switched externally.

Examples of errors and their effects:

1 In this example structure, a short circuit in segment S1.2 would not affect the termi-

nals in other segments. The fuse in the IB IL 24 SEG/F-PAC segment terminal means

that only segment S1.2 is switched off.

2 If an error occurred in the system, the terminals in segment S2.2, for example, could

be switched on or off without affecting the terminals in other segments.

Noiseless ground (functional ground, FE)

Protective ground

I Indicates the interruption of a potential jumper

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