Rockwell Automation 2364E Non-Regenerative DC Bus Supply Unit (NRU) - Manual (Page 23)

Publication 2364E-5.01 April 2002
Overview 1-9
Bulletin 2364E NRU –
Standard Options Electrical System Options
• Analog DC bus voltage metering
• Analog AC input current metering (Phase A only)
Note: The bus voltmeter and/or AC input ammeter are mounted
in a special wireway meter cover that is angled for easy viewing.
• AC input and output power metering (kW) using Powermonitor II
(Bulletin 1403) for NRUs powered by 3-phase, grounded-wye
secondary supplies
• Powermonitor II communication module for connecting the
Powermonitor II to Remote I/O, RS-232, or RS-485 devices
• A door-mounted "Unit-Not-Faulted" pilot light that monitors air
flow sensor(s), heatsink temperature sensors, phase loss relay,
and an optional remote interlock (if supplied by customer)
• A door-mounted, ground-fault detection meter for NRUs
powered by 3-phase, grounded-wye secondary supplies
• Standard capacity ("6P") and extra capacity ("6PX") control
power source upgrade options are available to provide 115V AC
control bus power
Note: "6P" and "6PX" options include control bus fuse and
control busbar mounted in cabinet above power bus.
• An air-flow-loss switch in all Diode Power MCC sections and in
2500/3000A DC Input Power MCC sections. This option
monitors critical NRU air flows for proper CFM
• A line RC suppressor module to reduce AC line transients
Note: The line RC suppressor module is recommended when the
primary voltage of the supply transformer is 2300V AC or
greater.