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9400001-J1 Rev F
4.1 Power Bays
4.1.1 Cordex HP System Controller
The Cordex HP system controller, mounted in the primary power bay, provides easy access to controls and display
status. The controller provides comprehensive setup, control, monitoring and communication for Alpha DC power
systems.
Controller features include the following:
• Designed to communicate directly with HP rectifiers
• Includes battery temperature compensation charging
• Battery performance diagnostics
• Provides local and remote communications
• User definable alarms
• Daily logging of power system events and system statistics
• Active low voltage disconnect (LVD)
See the controller manual shipped with your order for detailed information.
4.1.2 Cordex HP Rectifier Shelves
A 4000A power bay has eight rectifier shelves and a 2000A bay has four rectifier shelves. Each rectifier shelf can
hold up to six Cordex HP 4kW rectifier modules or two 12kW/480 rectifier modules.
A Cordex HP 4.0kW rectifier supplies a nominal output of 74A at 54Vdc and the 12kW/480 rectifier supplies 222A
at 54Vdc nominal. Rectifier specifications are included in the Cordex HP rectifier manual included with the system
documentation package.
The controller provides central control of the rectifiers’ output level, load sharing, temperature compensation, low
voltage disconnect on the distribution bay and alarm reports. A CAN bus cable is wired or daisy-chained to each
rectifier shelf for communication with the controller.
4.1.3 AC Termination Wiring
The required input voltage depends on the rectifier options chosen at the time of ordering. The AC distribution as-
sembly at the top of each power bay provides front access AC overhead termination.
A split AC terminal box allows for feeds from two separate sources. Eight feed is standard; six or sixteen feed is an
option. See the specifications in Chapter 3 on page 9.
4.1.4 Standalone or Add-on Power Bays
A standalone power bay can replace multiple bays with less capacity in an existing power system or as an add-on to
upgrade the capacity of an installed CXPS-C power system.