Newave_OPM_PV11_PV31 _GB_250805.doc Operation
Page 29
4.4 OPERATING
MODES
4.4.1 Mode "ON LINE" (INVERTER MODE)
The ON-LINE-Mode is the UPS-Operating Mode in which the load is supplied through the RECTIFIER
and INVERTER.
Using the control panel (see figure 4.1), the UPS can easily be transferred to the ON-LINE-Mode. The
ON-LINE-Mode provides the highest degree of protection, especially in the event of a mains
disturbance or failure.
This operating mode is always recommended if the critical loads (computer systems) will not tolerate
any interruption of the supply (not even the shortest).
In the unlikely event of an inverter fault or overload condition the UPS will transfer the load
automatically and without interruption to the static bypass-mains supply (transfer time = 0).
4.4.2 Mode "OFF-LINE" (ECO- or BYPASS MODE)
In the "OFF-Line Mode”, the load is supplied from the mains through the static bypass.
Using the control panel (see figure 4.1), the UPS may be easily transferred to "Bypass Mode”.
When the UPS is operating in "Bypass Mode”, the efficiency of the system is higher. In the event of a
mains failure the load will automatically be transferred from mains to inverter within 5 msec. The
battery charger remains active in the "Bypass-Mode”.
The "Bypass-Mode”, is recommended only if the loads can tolerate interruptions of 3-5 ms (transfer
time from Bypass Mode to ON-LINE Mode).
In order to provide the load with maximum protection NEWAVE always recommends that
the load be supplied by the inverter (ON-LINE-Mode).
!
LED Indicator
Colour
LINE 1
Green
LINE 2
Green
BYPASS OFF
INVERTER Green
BATTERY Green
LED Indicator
Colour
LINE 1
Green
LINE 2
Green
BYPASS Green
INVERTER OFF
BATTERY Green
