Shutdown Procedures; Module Shutdown Procedure - Emerson Liebert NXL series Operation And Maintenance Manual

Liebert NXL UPS

2.5 Shutdown Procedures

2.5.1

Module Shutdown Procedure

Perform a Module Shutdown Procedure when you want to remove power from a UPS
module.
Read all warnings in 3.0 - Maintenance before performing any maintenance on your
Liebert NXL UPS. These warnings and cautions must be observed during any work on the
UPS.
NOTE
Service and maintenance work must be performed only by properly trained and
qualified personnel and in accordance with applicable regulations as well as with
manufacturers' specifications.
Use the module Monitor/Mimic Display to determine the operating condition of the UPS
module.
2.5.1.1 2.5.1.1
2.5.1.1 2.5.1.1
UPS Shutdown Procedure
NOTE
This shutdown turns Off the inverter, rectifier and trips all battery breakers. Transfers to
bypass if available.
1) Press the "Shutdown" menu button on the touch screen.
The Shutdown screen will appear in the multipurpose window (see Figure 19).
2) Press the "UPS" button. This brings up a warning dialog box (see Figure 20).
3) Press OK to shut down the UPS
2.5.1.2 2.5.1.2 2.5.1.2 2.5.1.2
System Shutdown Procedure
NOTE
This shutdown turns Off the inverter, rectifier , static switch and trips all battery breakers.
Will shut down UPS completely.
1) Press the "Shutdown" menu button on the display touch screen.
The Shutdown screen will appear in the multipurpose window (see Figure 19).
2) Press the "System" button. This brings up a warning dialog box (see Figure 21).
3) Press OK to shut down the system.
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Operation and Maintenance Manual 250-300-400-800kVA