20
en | EN54-4 additional information
External power supply kit
2021.04 | 8.0 | F.01U.005.065
Installation manual
Bosch Sicherheitssysteme GmbH
FPP-5000-TI13
Input / output function
Tolerance of short circuit current configured
via RPS (I
configured
)
12.5 mA + I
configured
x 10%
5
EN54-4 additional information
I min
0 A
I max a
See standby current calculation beneath this
table
I max b
5.6 A
Fuse rating
T10A (slow)
Permitted battery capacity with 2
batteries
24 - 26 Ah
36 - 45 Ah
Max battery resistance (fault threshold)
430 mΩ
Standby current calculation according to EN 54-4
(1) I
max, Standby
=
C
Batt
- I
Alarm
x 0.5h
(3) I
nom
= min [I
max, Standby
, I
max a
]
t
Standby
(2) I
max a
= 6A -
C
Batt
18h
Formula (1) describes the maximum system current to guarantee a particular back-up time
(I
max,Standby
).
Formula (2) describes the maximum system current taking into account simultaneous battery
charging (I
max a
).
The system standby current (I
nom
) to be selected is calculated from the lower of the two
maximum system current values, as shown in the formula (3).
Parameters:
–
t
Standby
= back-up time in hours
–
C
Batt
= battery capacity in Ah
Possible capacities (C
Batt
):
24 - 26 Ah or 36 - 45 Ah with 2 batteries
