Operating instructions

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3.2. Operation from the battery.
Starting the operation from the battery.
The time of operation with supplies from battery depends on the battery capacity, the extent of charging and the
load current. For example, for the typical, fully charged battery with capacity of 17 Ah and load current 2A, the
maximum operation time safe for the battery is approximately five hours.
The battery should be connected in accordance with the designations [3].
Disconnection of the discharged battery.
The power pack is equipped with the disconnection system of discharged battery. During the operation from the
battery (in the absence of the 230 V power grid voltage), the lowering of the voltage on the terminals of the battery
below ~ 10V (±5%) will automatically cause its disconnection. The work from the battery is possible again only
after delivering the voltage 230 V and charging the battery.
The limitation of the battery charging current.
The power pack is equipped with the battery charging current limitation to the value:
- Iacc =~ 1.6 A with unloaded power pack Iout = 0A
- Iacc (aver.) = 0.7 A with power pack load with current Iout = 2.3 A
3.3. Procedures in the case of power pack overloading.
The power pack is equipped with the protection of the output stage with the application of the PTC polymer fuse.
When the power pack is loaded with current exceeding 3A (110% ÷150% P) , the automatic disconnection of the
output voltage takes place, which is signalled by the green diode going off. In such a case, the load should be
disconnected from the output of the power pack for the period of about 1 minute.
4. Maintenance.
All the maintenance duties may be performed following disconnection of the power pack from the power grid. The
power pack does not require any specific maintenance procedures, however, in the case of significant level of
dust, its interior should be cleaned with the compressed air.
When replacing the fuse, use only substitutes in conformity to originals.