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Power supply, Concept, Special functions – Siemens FC700A User Manual

Page 52: Application, Power supply for the control unit, Auxiliary power supply, 22 power supply, 1 concept, 2 special functions, 3 application

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Power supply

52

Siemens Building Technologies

007836_a_en_--.doc

Fire & Security Products

03.2004


22 Power

supply

22.1 Concept

The power supply for the FC700A fire detection system consists of:

Converter

(mains voltage -> system voltage 29,6V)

Battery charging unit (by means of E3C011)

Batteries (lead)

(capacity as required)

22.2 Special

functions

Automatic battery load test

Battery charging characteristic can be programmed according to make

22.3 Application

Determine required battery capacity individually -> see chapter 23

Max. 27Ah per battery charging unit (> 27Ah = auxiliary power supply)

Parallel operation of several battery charging units possible

Battery lead without EMI-protection (battery cannot be mounted separately)

22.4 Power supply for the control unit

Battery charging module E3C011 required

I-Bus

Mains

E3C011

Batteries

AX12..

B3Q700

29,6V

FC

TF*

B2F020

40...220VA

22.5 Auxiliary

power

supply

* TF = Temperature sensor for battery temperature monitoring

Mains

Basic emergency

power supply

Extension

FT

B2F020

TF*

TF*

C-Bus

Batteries

AX12..

Batteries

AX12..

Monitoring via HW monitoring path

FC

Mains

B2F020

E3C011

E3C011

24V

Battery charging

unit