Phoenix Contact IB IL AO 4/U/0-10-ECO Handleiding (190 Pagina's)

Handleiding

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Electrical potential and data routing (Inline)

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8.1.2 Logic circuit

The logic circuit with the communications power U

L

starts at the bus coupler or at a power

terminal (IB IL 24 PWR IN/R-PAC; IB IL 24 PWR IN/PS-PAC) and is led through all the

terminals of an Inline station.

Function The logic circuit (e.g., protocol chip, microcontroller) of the devices in a station is supplied

with voltage from the logic circuit.

Voltage The voltage in this circuit is 7.5 V DC ±5%.

Provision of U

L

The communications power U

L

is provided by the bus coupler or a corresponding power

terminal from the connected supply voltage.

Current carrying capacity The maximum current carrying capacity is 2 A. If this value is reached, the voltage must

be boosted via a power terminal or a new station must be created using a bus coupler.

The current consumption from the logic circuit of each device is specified in the relevant

terminal-specific data sheet.

The communications power is not electrically isolated from the 24 V DC input voltage for

the bus coupler.

This maximum current carrying capacity can be limited by certain bus couplers or

corresponding power terminals. Please refer to the information in the terminal-spe-

cific data sheets.

8.1.3 Analog circuit

The analog circuit with the supply for the analog terminals (also referred to as analog

voltage) U

ANA

starts at the bus coupler or at a power terminal (IB IL 24 PWR IN/R-PAC;

IB IL 24 PWR IN/PS-PAC) and is led through all the terminals of an Inline station.

Function The I/O for analog signal terminals is supplied from the analog circuit.

Voltage The voltage in this circuit is 24 V DC (+20%, -15%).

Provision of U

ANA

The analog voltage U

ANA

is provided by the bus coupler or a corresponding power termi-

nal from the connected supply voltage.

Current carrying capacity The maximum current carrying capacity is 0.5 A. If this value is reached, the voltage

must be boosted via a power terminal or a new station must be created using a bus cou-

pler.

The analog voltage is not electrically isolated from the 24 V DC input voltage for the bus

coupler.

The current consumption from the analog circuit of each device that is supplied from

U

ANA

is specified in the the relevant terminal-specific data sheet.

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