HP R5500 Updating the UPS firmware

3.Unplug the ERM from a second connected ERM.

4.Remove the front bezel ("Removing the ERM front bezel " on page 32 ) on the ERM that is being replaced.

5.Remove the screws securing the ERM to the rack.

6.Remove the ERM from the rack.

To replace the component, reverse the removal procedure.

Updating the UPS firmware

CAUTION: Using a USB to serial converter cable will damage the UPS.

To update the UPS firmware, see the HP website (http://www.hp.com/go/rackandpower ).

Maintenance 38

Contents

HP UPS R5500 User Guide Page Contents Page Page Component identification UPS front panel controls UPS front panel LED indicators REPO port ERM rear panel Installation Tools and materials Selecting a site Readying the equipment Page Page Preparing the rails for integrated shipping Installing the UPS Page Removing the UPS battery bracket Installing the batteries Replacing the UPS battery bracket Attaching the UPS front bezel Switching on the UPS battery circuit breaker Connecting the serial communications port Connecting the REPO port Connecting the ground bonding cable Connecting the UPS to utility power Connecting devices to the UPS Connecting the UPS cord retention clips Charging the UPS batteries Starting power to the load Attaching the ERM front bezel Switching off the ERM circuit breaker Connecting the ERM to the UPS Switching on the ERM circuit breaker Charging the ERM batteries UPS operations Standby mode Operate mode Configure mode Auto-Bypassmode Testing the LEDs Silencing an audible alarm Verifying the REPO port connection Powering down the UPS Power management Maintenance Replacing the UPS electronics module Replacing the UPS option card Important battery safety information Battery care and storage guidelines UPS battery replacement procedure Replacing the UPS Replacing the ERM Updating the UPS firmware Troubleshooting Battery condition Bypass is out of range General alarm condition Input voltage is out of range Insufficient warning of low batteries Internal UPS fault condition Low battery shutdowns Overload condition REPO condition Site wiring condition UPS does not provide the expected backup time UPS does not start UPS frequently switches between utility and battery power UPS is in Auto-Bypassmode UPS is on battery Utility power condition Specifications Power protection specifications Voltage specifications Output tolerance specifications Output feature specifications Environmental specifications REPO port specifications Spares Hardware options Technical support Warranty information Regulatory compliance notices FCC rating label Class A equipment Class B equipment Modifications Cables Canadian notice (Avis Canadien) European Union regulatory notice Japanese notice BSMI notice Battery replacement notice Taiwan battery recycling notice Power cord statement for Japan Electrostatic discharge Acronyms and abbreviations Index