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3. You now have access to all function windows. Press the DOWN
arrow key until the cursors have selected NEXT PAGE - press the
ENTER key.
4. Press the DOWN arrow key until the cursors have selected. ON/
OFF UPS CONTROL - press the ENTER key:
CAUTION
The following window allows the operator to select the UPS
Inverter ON or OFF select the rectifier ON or OFF select the
rectifier to manual or float voltage and to switch OFF the
Line voltage to load.
Before making this operation, read messages on display to be
sure that bypass supply is regular and the inverter is
synchronous with it, not to risk a short interruption in
powering the load.
IF YOU ARE NOT SURE OF WHAT YOU ARE DOING - THEN
DO NOT DO IT.
5. Ensure INVERTER is selected by the cursors and press the
ENTER key:
The ON selection should be highlighted using the UP arrow key,
rotate between the selections offered (in this case it will be ON or
OFF) select OFF. Press the ENTER key to execute your command.
The UPS inverter will now shut down and the load will transfer to the
Bypass supply.
The Display window can be returned to normal by operation of the
ESCAPE key back through the various windows.
The Module Mimic indicator Load on Bypass (3) will flash amber and
the Load on Inverter indicator will extinguish.
Your load is now powered via the Static Bypass system.
6. Unfasten the lock, release the internal safety bar and close the
maintenance bypass power switch Q3. Open the Rectifier input power
switch Q1, the Output power switch Q4, the bypass power switch Q2
and the Battery circuit breaker.
The unit will power down but the load will continue to be supplied by
the manual bypass.
WARNING
The following points will be live within the UPS:
• Bypass AC input supply terminals
• Maintenance Bypass power switch.
• Static Bypass power Switch.
• UPS output terminals.
Input and output terminals remain protected by an insulating
transparent cover.
Your load is now powered from the maintenance bypass system and
the UPS is completely shut down.
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