Meta System MEGALINE 1250 RACK Instruction Manual page 32

The combination of these signals enables rapid and intuitive understanding of its operating status and
recognition of any problems in the power supply.
There are three main operating modes
- Mains operation
- Battery operation
- By-pass operation
Mains operation
This is considered the normal operating condition:
- mains voltage is converted by the power factor corrector (PFC) into continuous current
- the inverter reconstructs the sinusoidal voltage from the continuous current
- the output filter provides extra "cleaning" of the output voltage
- the batteries are recharged
Battery operation
When there is a mains power failure, the UPS automatically switches over to battery mode.
- the voltage of the batteries is increased by the "booster" circuit
- the inverter reconstructs the sinusoidal voltage from the continuous current
- the output filter ensures the voltage supplied to the load is clean
By-pass operation
The by-pass circuit excludes the UPS and connects the output directly to the input. The switchover takes
place in a synchronised manner in order to ensure the correct output voltage is always guaranteed,
preventing the risk of a break in power or excess voltage.
The intervention of the by-pass circuit can be customised by means of a dedicated menu (Config. UPS,
By-pass) which provides many options (automatic, disabled, by-pass in load waiting mode, etc.) in order to
meet the specific demands of the application.
Information provided by the display
The main messages provided by the alphanumeric display in the three different operating modes are
illustrated below.
UPS on mains
IN 212V
OUT 230V/812W ( 31%)
Batt
UPS On Mains
On Battery
On By-pass
IN xxxV
OUT
xxxV/x,xKW (xx%)
Batt.
xx,x'
32,2'
Indicates normal operating status, when mains voltage is present.
Indicates that there is no mains power and the UPS is using its batteries
to supply power.
Indicates that by-pass operation has been turned on: the output of the
UPS is connected directly to the mains.
Indicates the UPS input voltage and the RMS power absorbed by the
mains. This message is not displayed during battery operation.
The current power is also given as the percentage of the total power that
the UPS is able to supply.
Indicates the state of charge of the batteries in a chart format and the
autonomy available in a numeric format
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2 - Operation