NonStop NS1200 Planning Guide

These ratings apply to systems with the optional rackmounted HP Model R5500 XR Integrated

UPS:

Branch Circuit (see

preceding “CAUTION”)

Input PlugPower Out (VA/Watts)Operating Voltage

Settings

Version

Dedicated 30 AmpL6-30P5000/4500200/208,

220, 230, 240North America and

Japan

Dedicated 30 AmpIEC-309 32 Amp6000/5400200, 230,

240Other International

Then 5000/4500If 200/208

1 Factory-default setting

For complete information and specifications, refer to the HP UPS R5500 XR Models User Guide.

This guide is available at:

http://h10032.www1.hp.com/ctg/Manual/c00065453.pdf

Enclosure AC Input

Enclosures (blade element, VIO enclosure, and so forth) require:

ValueSpecification

200/208/220/230/240 V ac RMSNominal input voltage

180-264 V acVoltage range*

50 or 60 HzNominal line frequency

47-53 Hz or 57-63 HzFrequency ranges

1 or 3Number of phases

* Voltage range for the VIO enclosure is 100-240 V ac, and for the maintenance switch is 200-240 V ac.

Each PDU is wired to distribute the load segments to its receptacles. Refer to “Power Distribution

Units (PDUs)” (page 37). Factory-installed enclosures are connected to the PDUs for a balanced

load among the load segments.

CAUTION: If you are installing Integrity NonStop NS1200 system enclosures in a rack, balance

the current load among the available load segments. Using only one of the available load segments,

especially for larger systems, can cause unbalanced loading and might violate applicable electrical

codes. Connecting the two power plugs from an enclosure to the same load segment causes

failure of the hardware if that load segment fails.

Enclosure Power Loads

The total power and current load for a modular cabinet depends on the number and type of

enclosures installed in it. Therefore, the total load is the sum of the loads for all enclosures

installed. For examples of calculating the power and current load for various enclosure

combinations, refer to “Calculating Specifications for Enclosure Combinations” (page 49).

In normal operation, the AC power is split equally between the two PDUs in the modular cabinet.

However, if one of the two AC power feeds fails, the remaining AC power feed and PDU must

carry the power for all enclosures in that cabinet.

AC Input Power for Modular Cabinets 43