10
NETYS PL - Ref.: IOMNETPLXX01-GB 02
6. MODES OF OPERATION
6.1. SWITCHING THE UPS ON
Switch the UPS on by pressing the ON/OFF button on the front panel.
The Normal Mode LED will light up; allow ten seconds for the self-configuration procedures to run.
6.2. SWITCHING THE UPS OFF
WARNING!
This UPS has been designed to control and maintain the battery charge; therefore it should only be switched off
completely in exceptional circumstances.
To shut down the UPS completely, press and hold down the ON/OFF button. The UPS switches off all LEDs and is then fully disa-
bled. If the mains cable is not disconnected, the batter charger remains active.
6.3. NORMAL MODE
When mains power is available and the voltage falls within the acceptable range, the Normal Mode LED on the front panel remains
on permanently. The loads are powered from the mains power supply either directly, the batteries are constantly recharged.
6.4. BATTERY MODE
The UPS automatically switches to this operating mode when mains power fails (spikes or lengthy power cuts) or if the mains is at a value
considered to be dangerous; users are powered using the energy stored in the batteries converted to an AC voltage through the inverter.
In this mode, a slow intermittent alarm sounds, and the Battery Mode LED indicator on the front panel flashes.
In the case of prolonged mains failure, the UPS powers users until it shuts down when the batteries are fully depleted (see the chapter
COMMUNICATION for ordered shutdown via software).
Just before shutdown, when the battery charge runs out fully, low battery charge is signalled via a rapid intermittent acoustic alarm.
The UPS automatically returns to normal operating mode about two seconds after the mains power is restored. The time taken to
transfer from normal to battery mode and vice-versa is imperceptible to the load.
6.5. OVERLOAD
The UPS can power loads up to the power rating declared on the machine’s data plate; once this limit is exceeded, the machine
goes into overload condition. Overloads are signalled by a rapid sounding acoustic alarm.
WARNING!
Significant overloads could cause permanent damage to the UPS!
Avoid connecting laser printers that generate absorption peaks liable to cause overloads on the UPS.
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