Siemens S5-135U/155U Fitting the Filter Subdrawer Option, Where to Fit, How to Fit, Switch

Central Controllers and Expansion Units Power Supply Units

Fitting the Filter

Subdrawer

Option	The filter subdrawer with fixing grid, two plug-in guide rails and the
	corresponding filter mats are available as an option (see the ordering
	instructions for the order numbers).
Where to Fit the	To insert a filter, you must secure the filter subdrawer to the lower side of the
Filter Subdrawer	power supply unit housing.
How to Fit the	Proceed as follows:
Filter Subdrawer

Step

Action

1

2

3

Install the guide rails in such a way that the round tabs fit into the corresponding openings on the lower side of the PSU.

Insert a filter mat in the filter subdrawer and secure it with the enclosed fixing grid.

Position the filter subdrawer in the guide rails, push it back and swivel it up so that it locks in place.

Setting the Voltage

Selector Switch

How to Set the	On the AC power supply units, the voltage selector switch is situated on the
Voltage Selector	front plate and marked Voltage Selector. You can select a voltage of 120 V or
Switch	230 V. The factory setting is 230 V.
	Set the voltage according to your requirements

Step

1

2

3

4

Action

Disconnect the power supply unit from the line voltage.

Use a screwdriver to remove the transparent cover.

Set the voltage selector switch to your required voltage.

Refit the transparent cover.

4-34	System Manual
	C79000-G8576-C199-06