Operating instructions

Protect 5.31/xxx-480-220-120 10 kVA - 120 kVA
Page 18 of 56 8000020680 BAL, en
4.6 Storage
UPS units may only be stored for a maximum period of six months in
the original packaging in dry, ventilated rooms with a permanent roof.
The permissible ambient temperature range is between -35 °C and
+70 °C with a relative humidity of ≤ 85%.
If the unit is stored for longer than six months, conventional
desiccants must be added and the UPS units must be sealed in
airtight plastic film.
Please refer to the respective manufacturer's instructions for storage
instructions for the batteries.
5 Function
5.1 Operating Modes
Four different operating modes are possible:
• Operation with mains power supply
• Operation with faulty mains supply
• Operation with defective inverter, and
• operation with manual bypass.
5.1.1 Operation with Mains Power Supply
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Q29
Mains
Secured
busbar
Loads
SBS
circuit
Q29
Q29 option
Figure 8 Power circuit with mains supply
The rectifier is powered from the mains and converts the AC voltage
statically into a stabilised DC voltage. This DC voltage serves for
charging and automatic trickle charging of the connected battery,
which is always charged as a result.
The inverter converts this secured DC voltage into a stabilised
sinusoidal AC voltage and powers the connected loads.