Vertiv™ NetSure™ 512
NGBB
-48 VDC Power System User Manual
Proprietary and Confidential © 2022 Vertiv Group Corp.
3
Controller
The controller controls the operation of the rectifier and converter modules. The controller also provides power system control,
metering, monitoring, and alarm functions.
NCU (NetSure Control Unit): The controller provides power system control (including optional low voltage battery disconnect (LVBD)
and low voltage load disconnect (LVLD) control), rectifier control (including a charge control function), converter control, metering
functions, monitoring functions, and local/remote alarm functions. The controller also supports rectifier temperature compensation if
the system is equipped with a temperature probe(s). Temperature probe(s) may also be designated to monitor ambient temperature
and/or battery temperature. The controller also provides data acquisition, system alarm management, and advanced battery and
energy management. The controller contains a color TFT display and keypad for local access. The controller provides an Ethernet
port and comes with comprehensive webpages for remote access. The controller has SNMP V3 capability for remote system
management. The controller supports software upgrade via its USB port. Refer to the NCU Controller Instructions (UM1M830BNA)
for more information.
Module Mounting Shelf
The system contains one (1) to four (4) module mounting shelves (depending on system configuration, see SAG582137000), which
may house rectifier modules, optional converter modules, and a controller (depending on shelf configuration, see PD588705300).
Refer to PD588705300 for additional information.
Rectifier Modules
The system contains rectifier modules, which provide load power, battery float current, and battery recharge current during normal
operating conditions. Refer to the Rectifier Instructions (UM1R482000E3) for more information.
Optional -48 VDC to +24 VDC Converter System
Where +24 VDC load power is also required, DC-DC converter modules are available. These converters operate from the main -48
VDC system bus to p24 VDC load power. Refer to the Converter Instructions (UM1C48241500) for more information.
Optional -48 VDC to -58 VDC Converter System
Where -58 VDC load power is also required, converter modules are available. These converters operate from the main -48 VDC
system bus to provide -58 VDC load power. Refer to the Converter Instructions (UM1C48582000P3) for more information.
