Vertiv™ NetSure™ 5100 Series -48 VDC Power System Installation Manual
Proprietary and Confidential © 2023 Vertiv Group Corp.
4. System information is displayed in multiple screens. Press the ESC key to view other system information. Press the down
arrow key to view the next screen. Press the ESC key to return to the Main Menu.
5. From the Main Menu, press the UP and DOWN keys to highlight the desired Menu graphic in the Main Menu. Press the ENT
key to enter the selected menu.
NOTE!
Repeatedly press the “ESC” key to return in reverse order level by level from any submenu until the Main Menu
appears.
6. Refer to the following procedures to verify and set the NCU controller as required for your application.
7.5 Verifying and Setting the NCU Controller as Required for Your
Application
Refer to the NCU Instructions (UM1M830BNA) for additional information.
Note that you will have to program the NCU for any temperature probes and external inputs/outputs connected to the IB2 Interface
Board and optional EIB Extended Interface Board.
Refer also to “NCU Start Wizard” on page 162.
NOTE!
When setting total rectifier current limit, the set point to each unit is the total set point divided by the number of
units. For example, if the system contains five rectifiers and the current limit is set to 150 amps then each rectifier has a
current limit set point of 30 amps. If one or more rectifiers are removed or fail, it will take several seconds for the individual
set points to the remaining rectifiers to be reset. In the example given, if one rectifier is removed the current limit set point
will drop to 120 amps (30 amps times four remaining rectifiers) until the controller can send updated set points to the
remaining rectifiers. This takes a couple communication cycles (several seconds) after which each rectifier would have a new
set point of 37.5 amps for a total of 150 amps. The total current limit of the rectifiers should not be set such that the loss of
the redundant rectifiers will cause this temporary set point to drop below the actual maximum expected load. If batteries are
used on the rectifier output, the batteries should support the load until the current limit set points can be re-established due
to loss of a rectifier.
NCU Start Wizard
For initial startup, you can perform the Start Wizard from the local keypad and display to enter basic programmable parameters in one
session. Refer to the “Start Wizard” section in the NCU Instructions (UM1M830BNA).
Verifying the Configuration File
Your NCU was programmed with a configuration file that sets all adjustable parameters. The version number of the configuration file
can be found on the configuration drawing (C-drawing) that is supplied with your power system documentation, and on a label
located on the NCU. You can verify that the correct configuration file has been loaded into your NCU by performing the following
procedure.
Procedure
1. With the Main Menu displayed, press ESC. A screen displays the NCU name, serial number, IP number, software version,
hardware version, and configuration version number.
2. Press ESC to return to the Main Menu.
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