Liebert Nfinity Power Supply User Manual


 
Operating Instructions
19
3.4 Operating Procedures
3.4.1 Start-Up and Initialization
Follow these steps to start up the UPS.
1. Ensure the manual bypass switch is in
UPS position. Close Input Circuit Breaker
(CB1) and close the Control Enable
Switch (SW2). You should see the
following on the LCD display window:
2. Press or button.
3. Press
to access the Main Menu.
3.4.2 Shutting Down the UPS
Use the following procedure to power down
the UPS.
1. Press to disable power from the
connected equipment.
2. Verify request to disable the output by
pressing .
3. Turn off the Enable Switch (SW2). Open
the Input Circuit Breaker (CB1).
3.4.3 Manual Transfer to Bypass
To manually transfer the UPS to bypass,
move the manual bypass switch to the bypass
position. The manual bypass switch is behind
the front bottom bezel. To transfer the UPS
from bypass to normal mode, follow the on-
screen instructions.
Once is pressed, the bypass alarm will
annunciate and cannot be canceled until the
manual bypass switch is operated.
To transfer the UPS from bypass to normal
mode, simply operate the manual bypass
switch back to the UPS position.
On return from bypass, the following screen
will be displayed.
UPS Initializing
Please wait...
*Press to Enable
UPS Output.
ESC
On Mains/Utility
Output % = xx
Battery Minutes yyy
Press for menu
NOTE
The load is not protected from utility
interruptions when the UPS is in
bypass mode.
Main Menu
> Transfer to Bypass
Transfer to Bypass
Press for bypass
Press ESC to cancel
Assert manual bypass
Manual
Bypass
Switch
On UPS
On Bypass
UPS on manual bypass
No active alarms
See Event Log