Central Controllers and Expansion Units Power Supply Units

Function Selection

Mains buffering

Jumper

Setting

Application/Note

(X)

 

 

 

 

 

 

 

 

FX-VA 6-22

FX-VA 6-22

FX-VA 6-22

closed closed

closed open

open irrelevant

A stored energy time of 5 to 10 ms is guaranteed in the event of a power failure.

The stored energy time is dependent on the input voltage and the load.

A stored energy time of 20 to 30 ms is guaranteed in the event of a power failure.

The stored energy time is not dependent on the input voltage and the load.

A stored energy time of w 20 ms is guaranteed in the event of a power failure.

The stored energy time is dependent on the input voltage and the load.

If your selection is the same as all the settings marked in bold print, you need not change the jumper settings.

Establishing the Wiring of the power supply unit must be planned within the scope of wiring

Wiringof the entire 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 Three relay outputs allow you to install additional external signaling circuits

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

The following table contains the information required on the relay states:

Relay

(Normal Operational State)

(Fault State/Idle State)

Warning

Alarm

BatteryWarn ing

All fans are in order.

Adequate air flow, at least two fans are running.

Lithium battery and rechargeable battery are in order (Ubatt ext not connected).

One or more fans have failed.

Inadequate air flow or at least two fans have failed.

Lithium battery or rechargeable battery has failed

(no Ubatt ext ).

4-26

System Manual

C79000-G8576-C199-06

Page 92
Image 92
Siemens S5-135U/155U appendix Jumper Setting Application/Note, Open irrelevant, Relay