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4 Electrical installation

Wiring

EDKMF2113 DE/EN/FR 5.1



H1_E_INST−Merker_subdbuchsleiste

Wiring

Wiring to a host

 Note!

Additional electrical isolation is required, if

ƒ an 820X or 821X controller is connected to an INTERBUS master and

ƒ a safe electrical isolation (reinforced insulation to EN61800−5−1) is

necessary.

Use e.g. a bus terminal or an interface module for the INTERBUS master with

an additional electrical isolation (see the corresponding information of the

manufacturer).

The incoming bus (IN) is isolated from the supply voltage and the outgoing bus

(OUT).

The supply voltage has the same potential as the outgoing data bus (OUT).

ƒ The bus system must be designed as a ring.

ƒ Go− and return lines are both contained in the same bus cable.

ƒ The ring connects the INTERBUS master with all devices connected to the bus.

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