Shutdown-N+1 Ups System; Figure 44 N+1 Shutdown Menu Commands - Emerson Liebert NXL 250 kVA Operation And Maintenance Manual

2.15.14 Shutdown—N+1 UPS System
Perform a Module Shutdown Procedure when you want to disconnect power from a UPS module. For
System shutdown, see the SCC operation and maintenance manual, SL-25514, available at the
Liebert Web site:
Read all warnings in 4.0 - Maintenance before performing any maintenance on a 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.
NOTE
This shutdown turns Off the inverter and the rectifier and trips all DC source breakers.
Transfers load to bypass, if available.
1. Press the "Shutdown" menu button on the touchscreen. The Shutdown screen will appear in the
multipurpose window (see Figure 44).
2. Press the "UPS" button. This brings up a warning that pressing "OK" will shut off the UPS and
transfer the load to bypass, if available (see Figure 22).
3. Press "OK" to shut down the UPS.

Figure 44 N+1 Shutdown menu commands

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