Operation; Features; Figure 2 Main Component Locations-250 To 400Kva - Emerson Liebert NXL 250 kVA Operation And Maintenance Manual

2.0 O
PERATION
The Liebert NXL UPS is equipped with a microprocessor-based display touchscreen designed for
convenient and reliable operation. The display is driven by an easy-to- follow, menu-prompted
software.
2.1

Features

The Liebert NXL interface display enables the operator to perform such tasks as:
• Quickly check operational status
• Monitor the power flow through the UPS system and all meter readings
• Execute operational procedures
• Check status reports and history files
• Adjustment programmable parameters (access limited by security access function)
The touchscreen is a white-background display with multicolor text. The display turns on
automatically, but after 15 minutes of inactivity the backlight will go out and the display will appear
very dim. Touching the screen will reactivate the backlight; the backlight will again be active for 15
minutes. If any screen other than the mimic screen is accessed, that screen will be displayed for 5
minutes without any interaction. If there is no activity for 5 minutes, the display will revert to the
basic mimic screen.
Figure 2 Main component locations—250 to 400kVA
HMI Screen
Module Output
Backfeed
Circuit Breaker
Breaker (BFB)
(CB2)
5

Operation

EPO Button
Liebert
IntelliSlot
Housings
Input/Output
Connections
(Behind
Inner Door)
External
Interface
Board
Main Input
Circuit Breaker
(CB1)
® ™
Liebert NXL