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PSBEN2012B
BLACK POWER
26
6.4 Standby time.
Battery-assisted operating depends on battery capacity, charging level and load current. To maintain an
appropriate standby time, current drawn from the PSU in battery mode should be limited. Characteristics for a
7Ah/12V SLA:
Grade 1, 2 - standby time 12h
Output current 0,58A + 1,5A battery charge
Grade 3 - standby time 30h if the faults of the main power source are reported to the Alarm Receiving
Centre - ARC (in accordance with 9.2
– EN 50131-1).
Output current 0,23A + 1,5A battery charge
- standby time 60h if the faults of the main power source are reported to the Alarm Receiving
Centre - ARC (in accordance with 9.2
– EN 50131-1).
Output current 0,116A + 1,5A battery charge
6.5 Battery charging time.
The PSU has a battery circuit charged with direct current. The current selection is done with use of the
I
BAT
jumpers. The table below shows how long does it take to charge a (fully discharged) battery up to min. 80% of its
nominal capacity.
Table 12. Battery charging time.
7Ah
battery charging time
up to the capacity of 0,8*C
Charging
current [A]
Configuration of
I
BAT
jumper
4h12m
1,5
J1=
, J2=
, J3=
6h18m
1
J1=
, J2=
J3=
10h30m
0,6
J1=
, J2=
J3=
31h30m
0,2
J1=
, J2=
J3=
6.6 Operation without a battery.
In case of an expected PSU operation without an attached battery, make a necessary configuration of the
jumpers:
In this mode,
the automation system allows adjustments of PSU’s output voltage without indicating a failure
connected with battery operation.
CAUTION. During operation without battery assistance the PSU does not perform any parameter
control that monitors its proper operation. Therefore, this mode ought to be chosen thoughtfully.
