Siemens S5-135U/155U appendix Setting and Connecting the Fan Submodule, Step Action

Central Controllers and Expansion Units Power Supply Units

4.5.2Setting and Connecting the Fan Submodule

Before starting up your fan submodule, you must perform certain steps according to your requirements with respect to fan submodule behavior in the event of a fault.

The fan submodule is delivered in the following state:

SFitted in the CC or EU frame you ordered

SAC line voltage set to 230 V

If you wish to retain this setting, you can skip Steps 2 to 5.

Step

1

2

3

4

5

6

Action
Check the setting and cabling
Remove the fan submodule	If required
Fit the fan submodule	If required
Wire the fan submodule to the installation (including fitting
an isolating device to disconnect the AC line voltage)
On the -3LA11 set the voltage selector switch (factory	If required
setting 230 V)
Switch on the fan submodule for the first time

Establishing the Wiring of the fan submodule must be planned within the scope of wiring the

Wiringentire control system. The information required for the purpose and decision-making aids (for example, for local or central grounding) can be found in Chapter 3, Installation Guidelines.

Establishing the Two relay outputs allow you to install additional external signaling circuits

Signaling Circuits for fault states, for example, to connect a cabinet lamp or horn.

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