Load Transfer-N+1 System: Remove Ups From N+1 System (Collective); Load Transfer-N+1 System: Add Ups To N+1 System (Collective); Figure 40 N+1 Transfer Menu Commands - Emerson Liebert NXL 250 kVA Operation And Maintenance Manual

Liebert nxl series. three phase single-module & multi-module
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2.15.6 Load Transfer—N+1 System: Remove UPS from N+1 System (Collective)
1. Press the "Transfer" menu button on the touchscreen. The Connect/Remove Inverter screen will
appear in the multipurpose window (see Figure 40 - N+1 Transfer menu commands).
2. Press "Remove Inverter" button. This will open CB2.
NOTE
If disengaging this UPS from the system will cause the other UPS units in the system to
overload, then the "Remove Inverter" will not be activated.

Figure 40 N+1 Transfer menu commands

2.15.7 Load Transfer—N+1 System: Add UPS to N+1 System (Collective)
1. Verify that the UPS is On and the Inverter is in standby mode (see 2.15.2 - Startup—N+1
System).
2. Press the "Transfer" menu button on the touchscreen. The Connect/Remove Inverter screen will
appear in the multipurpose window (see Figure 40 - N+1 Transfer menu commands).
3. Press "Connect Inverter" button. This will close CB2.
NOTE
If the UPS is not synchronized with the other units in the system, then the "Connect Inverter"
button will be disabled.
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