NAUTILUS 10●520
Three phase in/out
Rev.00
– 09 Luglio 2015
27
WARNING!
Wait approximately 30 seconds after closing the battery isolator before activating the cold start
button.
4.2.4
Manual Bypass
To power the load directly with the network, the manual bypass switch located inside the UPS can be
closed.
WARNING!
When supplied by manual Bypass the load is not protected.
Manual bypass activation.
WARNING!
If the UPS is working properly, perform all the steps as follows .
◆
Open the manual bypass cover, the UPS will automatically switch the load on the bypass line (Bypass).
◆
Close the switch of manual bypass;
◆
Open the battery switch;
◆
Switch Off the input mains breaker;
◆
Switch Off the UPS output breaker.
At this point the bypass line will supply the load through the maintenance switch.
Deactivation of manual bypass.
WARNING!
Do not attempt to switch the UPS into normal mode from manual bypass without first checking that
there are no faults in the UPS.
◆
Open the front and back door of the UPS for easy access to the mains isolatorChiudere il sezionatore
d’uscita UPS.
◆
Close the input switches of all modules.
The UPS will power the load with the bypass line rather than with the manual bypass, at this point the
bypass LED will light up.
◆
Open the manual bypass disconnector, the output is supplied by the module bypass.
◆
Restore Bypass cover.
The rectifier will be on after 30 seconds. If the inverter will run regularly it will synchronize with the bypass
line and the UPS will switch the load from the backup line to the inverter.
4.2.5
UPS Turn Off procedure
WARNING!
This procedure should be followed to completely shut down the UPS and the LOAD. After all
power switches, isolators and circuit breakers are opened, there will be no output.
◆
press the INVERTER OFF button on the right side of the control panel for about two seconds.