Fire Detection System Planning Guide

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