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Siemens Desigo Desigo Room automation - Engineering, mounting and installation CM111043en_13

Smart Infrastrructure Wiring of power lines 2020-04-30

1), 2) Not with PXC3.E16A-100A

3) Only with PXC3.E...A... types

· The next device has no AC 24 V power when a room automation station is

removed. The connection exists only on the board, but not on the terminal block.

· Without AC 24 V, the internal Ethernet switch of the room automation station is

inactive. The next devices, if in line topology, are disconnected from the network.

For secure operation of the system it is recommended to supply each

room automation station separately with AC 24 V.

· Island bus: If a TXS1.12F10 supply module is connected to output 24 V

(terminals 7 and 8), do not invert ~ and ^.

The devices are not damaged, but island bus communications will not work.

· USB: If USB communications do not work, this is an indicator that the AC 24 V

operating voltage is incorrectly wired (conductors ~ and ⏊, terminals 5 and 6

inverted).

24V~

920

T 10A

9 10 11 12

24V~24V/2AKNX 2)

PTC

KNX

Island bus

DALI

DALI 3)

1 2 3 4

Island

Bus 1)

Basic circuit diagram

(connections AC 24 V,

fusing)

Secure operation

Note!

Communications

STOP

Note!