UM582127000 User Instructions
Issue AC, January 2, 2013 Spec. No. 582127000 (Model 721NPBB)
Page 2 Chapter 1. System Overview
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This system consists of the following components.
Distribution Cabinet
The system always includes a minimum of one distribution cabinet, which provides
DC distribution through fuses and/or circuit breakers. The distribution cabinet is
factory mounted in the relay rack or shipping brackets specified when ordered.
Four different sizes of distribution cabinets are available to accept from one (1) to
four (4) distribution panels. A variety of distribution panels are available that provide
load distribution, battery distribution, and dual voltage load distribution for use with
+24V converters. These distribution panels are configured to accept either bullet
nose type circuit breakers and TPS/TLS fuseholders, TPH fuses, TPL-B fuses, or
GJ/218 circuit breakers.
The distribution cabinet may be equipped with low voltage load disconnect (LVLD),
low voltage battery disconnect (LVBD), and manual battery disconnect.
ACU+ (Advanced Control Unit Plus) Controller
The system contains one controller. 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 an LCD display and
keypad for local access. The controller provides Ethernet connection and supports
software upgrade via its USB port. It also comes with a comprehensive web page
and SNMP capability for remote system management. Refer to the ACU+ Controller
Instructions (UM1M820BNA) for more information.
Rectifier Module Mounting Shelf (Spec. No. 588705000)
The system may contain one or more Spec. No. 588705000 rectifier module
mounting shelves, each of which houses up to six (6) rectifier modules. Refer to
Power Data Sheet PD588705000 for more information.
Rectifier Modules (for use in Spec. No. 588705000)
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 (UM1R483500E) for more information.
Rectifier/Converter Module Mounting Shelf (Spec. No. 588705300)
The system may contain one or more Spec. No. 588705300 rectifier/converter
module mounting shelves, each of which houses rectifier modules and optional
DC-DC converter modules. Refer to Power Data Sheet PD588705300 for more
information.
Rectifier Modules (for use in Spec. No. 588705300)
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.