Siemens FC121-ZA Technical Manual page 77

FC122-ZA 4 zone panel
Out 1 (e.g. Sounders)
Out 2 (e.g. Sounders)
Aux. output
Accessory cards
FCA1203-Z1 Output card 2M 2R
(1st)
Out A&B (e.g. Sounders)
FTO1203-H1 EVAC Module
Standby current [A]
Alarm current [A]
Choose the appropriate battery size depending on the calculated capacity.
[(Standby time × Standby current) + (Alarm time × sum alarm current)] × Aging factor = Capacity (max.12 Ah)
_ _ h × 0._ _ _ A
Standby time [h]:
Alarm time [h]:
Aging factor:
Standby current [A]:
Alarm current [A]:
Capacity [Ah]:
Smart Infrastructure
If the total current of the outputs (Sounders, etc.) is higher than 500mA, then an external
power supply is required.
In order to reduce the total current:
-
Power the output A&B from the external power supply (possible per card).
-
Move the Auxiliary output to the external power supply.
+ 0.5 h
24, 30 or 72
0.5 hour
1.25
Total current in standby mode
Total current in alarm mode
4.5 Ah; 7 Ah
[mA] [mA]
12 25
0.5 2.2
× _._ _ _ A × 1.25
Standby Alarm Standby
[mA] [mA] [mA]
54 123
=
A6V10393190_h_en_--
Alarm
[mA]
77
2019-09-01