HP R5500 manual Connecting the ground bonding cable

Page 21

Separate wire pairs are attached to a single, normally-open contact in a parallel connection. HP recommends using different colors for the positive and negative wires.

If a connector becomes disconnected and is reconnected with reversed polarity, a REPO is initiated. To avoid REPO port disconnect:

•Minimize wire strain while connecting the REPO port.

•Avoid allowing the wires to hang in the rear of the UPS.

•Use tie wraps and tie wrap blocks to secure the wires tightly to the rack and the rear of the UPS.

For more information about the REPO port, see "REPO port (on page 9)" .

For information about verifying the REPO connection, see "Verifying the REPO port connection (on page 30)" .

Connecting the ground bonding cable

The ground bonding screw is provided as an attachment point for conductors. Use a ground bonding cable if the rack contains any conductors for the purpose of functional grounding or bonding of ungrounded metal parts.

Installation 21

Image 21

Contents Part Number 351643-004A September 2007 Fourth Edition HP UPS R5500 User GuideAudience assumptions Contents Verifying the Repo port connection Powering down the UPS Power management softwareOrdering spares Before you contact HP HP contact information UPS spare parts list Hardware optionsUPS R5500 overview Component identificationUPS front panel DescriptionUPS front panel controls Powers up the UPS Starting power toFront panel is shown with the bezel removed LED description UPS front panel LED indicatorsRepo port UPS rear panelERM rear panel Precautions InstallationPreparing to install the hardware Tools and materialsInstalling the mounting rails Selecting a siteReadying the equipment Installation Installation Installing the UPS Preparing the rails for integrated shippingTighten the hex nuts Installation Removing the UPS battery bracket Installing the batteries Installation Installation Connecting the Repo port Connecting the ground bonding cable Connecting the UPS to utility power Connecting devices to the UPSGround bonding cable is not included Installation Starting power to the load Installing the ERMInstallation Installation Operate mode Standby modeUPS operations Modes of operationConfigure mode Configuring the UPSAuto-Bypass mode Explanation when LED is illuminatedAvailable settings Parameter Testing the LEDsSilencing an audible alarm Powering down the UPSVerifying the Repo port connection Power management software Power managementRemoving the UPS front bezel Removing the ERM front bezel MaintenanceReplacing the UPS electronics module Replacing the UPS option card Battery care and storage guidelines Important battery safety informationTo replace the component, reverse the removal procedure Replacing the batteriesUPS battery replacement procedure Replacing the ERM Replacing the UPSUpdating the UPS firmware LED and audible alarm troubleshooting TroubleshootingAlarm Be silenced 30?General alarm condition Battery conditionBypass is out of range Input voltage is not within ±12 percent of nominal voltageLow battery shutdowns Internal UPS fault conditionInput voltage is out of range Insufficient warning of low batteriesUPS does not provide the expected backup time Site wiring conditionOverload condition Repo conditionUPS is in Auto-Bypass mode UPS frequently switches between utility and battery powerUPS is on battery Utility power conditionUPS physical specifications SpecificationsERM physical specifications UPS input specificationsVoltage specifications Power protection specificationsUPS model Nominal power Rating W Voltage setting Configuration setting VAC Available nominal output voltageBattery runtime for NA/JPN model Battery specificationsBattery runtime for Intl model Output tolerance specificationsRepo port specifications Environmental specificationsSpares UPS spare parts listOrdering spares Description Spare part NumberHardware options Technical support Before you contact HPHP contact information Limited warranty Warranty information$250,000 Computer Load Protection Guarantee Pre-Failure Battery WarrantyRegulatory compliance notices Regulatory compliance identification numbersFederal Communications Commission notice Cables ModificationsEuropean Union regulatory notice Canadian notice Avis CanadienJapanese notice Bsmi notice Battery replacement notice Power cord statement for Japan Taiwan battery recycling noticeElectrostatic discharge Preventing electrostatic dischargeGrounding methods to prevent electrostatic discharge Acronyms and abbreviations Index Communications port, connectingInstallation instructions Repo port, connecting

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