Indications - Siemens FS720 Quick Reference For Components / Pin Assignment

Fire detection system
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5.3

Indications

LED
Color
Function
H1
Green
Mains voltage
surveillance
H2
Yellow
Battery surveillance
H3
Yellow
Temperature sensor
surveillance
Building Technologies
Fire Safety & Security Products
1
Cable tree to periphery board or fire terminal board
2
Existing cable tree (connection for master power supply)
3
Additional cable tree for the second power supply source (slave 1)
4
Additional fused terminal (F2) on the top hat rail
5
Additional cable tree for the third power supply source (slave 2)
Notes
The connection lines marked in bold of the additional cable tree (3 and 5) and
the existing cable tree (2) must be wired again when installing the second
power supply source (slave).
In order to avoid ambient temperature differences, the three power supply units
must be mounted next to each other in the same housing.
The batteries and the system supply must only be connected to the master
power supply unit.
Only one temperature sensor must be connected to the master power supply
unit.
The temperature sensor must be fitted close to the batteries. (Precise details
can be found in document A6V10210390, installation).
Condition
On
Off
On
Off
On
Off
Power supply (150W) SV 24V-150W
Meaning
Normal operation (mains voltage available)
Fault (no mains voltage)
Battery fault (open line, short circuit or voltage too low)
Normal operation (no fault)
Temperature sensor fault (open line, short-circuit or excess
temperature)
Normal operation (no fault)
27
A6V10210410_a_en_--
18.05.2009

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