Siemens FS20 - Operation Without Battery Backup; Operation of the Fire Terminal with Redundant Supply; Operation of the Fire Terminal with External DC Supply

Determining the compact stations
Supply concept
11
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Building Technologies
008843_v_en_
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Fire
Safety
2015
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12
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11.2.2 Operation without battery backup
The stations can be operated without batteries. This operation mode is used when
the stations are operated via a network with external buffering, or when battery
backup is omitted.
The battery monitoring function can be deactivated by means of the hardware or
SintesoWorks.
11.2.3 Operation of the fire terminal with redundant supply
The fire terminal can be supplied with a 24 V voltage through a fire control panel. In
accordance with EN 54, a redundant supply source is required in this case. To
protect against failure, the two feed lines must be guided separately and must not
be placed in the same cable duct. The fire terminal board is provided with two
independent DC supply inputs.
Figure 63: Block diagram, fire terminal with redundant supply
11.2.4 Operation of the fire terminal with external DC supply
When operated with an external DC power supply unit, the power supply is
provided via a 24 V feed line. A power supply unit and batteries can be built in
optionally.
Figure 64: Block diagram, fire terminal with external DC supply
Fire terminal board
FT2040
U
Sys 1
U
Sys 2
X7
X6
Fire terminal board
FT2040
U
Sys
X1