HP Parallel Uninterruptible Power System User Manual

HP 3 Phase UPS

e person who installs and

voltage equipment and trained in recognizing hazards in products

Part Number: 435256-004

User Guide

Abstract

This document includes installation, configuration, and operation information for the HP 3 Phase UPS. This document is for th maintains power products. HP assumes you are qualified in the servicing of highwith hazardous energy levels.

January 2013 Edition: 4

© Copyright 2008, 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express

warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

Component identification ............................................................................................................... 7

3 Phase UPS overview ............................................................................................................................... 7

UPS front panel ......................................................................................................................................... 8

UPS front panel controls ............................................................................................................................. 9

UPS front panel LED indicators .................................................................................................................... 9

UPS rear panel ....................................................................................................................................... 10

REPO port .................................................................................................................................... 10

ERM rear panel ....................................................................................................................................... 12

UPS installation ........................................................................................................................... 13

Precautions ............................................................................................................................................. 13

Preparing to install the hardware ............................................................................................................... 13

Tools and materials ........................................................................................................................ 13

Selecting a site .............................................................................................................................. 14

Readying the equipment ................................................................................................................. 14

Installing the mounting rails ...................................................................................................................... 14

Installing the UPS .................................................................................................................................... 17

Removing the UPS battery bracket ................................................................................................... 19

Installing the batteries .................................................................................................................... 19

Replacing the UPS battery bracket ................................................................................................... 20

Attaching the UPS front bezel .......................................................................................................... 20

Connecting the ground bonding cable ............................................................................................. 20

Connecting the REPO port .............................................................................................................. 21

Connecting the UPS to utility power ................................................................................................. 23

Switching on the UPS battery circuit breaker ..................................................................................... 24

Connecting devices to the UPS ........................................................................................................ 24

Charging the UPS batteries ............................................................................................................. 25

Powering up the standalone UPS ..................................................................................................... 25

Installing in a parallel configuration ........................................................................................................... 26

Installing the input and output wiring ................................................................................................ 26

Wiring the terminal block ............................................................................................................... 28

Connecting the ground bonding cable ............................................................................................. 29

Connecting the REPO port .............................................................................................................. 30

Connecting the UPSs to the Bus Bar ................................................................................................. 35

Switching on the UPS input circuit breaker ........................................................................................ 37

Switching on the UPS battery circuit breaker ..................................................................................... 37

Connecting devices to the UPS ........................................................................................................ 38

Charging the UPS batteries ............................................................................................................. 38

Powering up the parallel system ...................................................................................................... 39

Adding an HP 3 Phase UPS to a parallel configuration ................................................................................ 39

Disconnecting from utility power ...................................................................................................... 39

Installing the UPS ........................................................................................................................... 39

ERM installation .......................................................................................................................... 55

Preparing to install the hardware ............................................................................................................... 55

Tools and materials ........................................................................................................................ 55

Selecting a site .............................................................................................................................. 55

Contents 3

Readying the equipment ................................................................................................................. 56

Installing the mounting rails ...................................................................................................................... 56

Preparing the rails for integrated shipping .................................................................................................. 58

Switching off the UPS battery circuit breaker ............................................................................................... 59

Switching off the ERM circuit breaker ......................................................................................................... 59

Installing the ERM .................................................................................................................................... 60

Attaching the ERM front bezel ......................................................................................................... 62

Connecting the ERM to the UPS ....................................................................................................... 62

Switching on the ERM circuit breaker ............................................................................................... 63

Switching on the UPS battery circuit breaker ..................................................................................... 63

Charging the ERM batteries ............................................................................................................ 63

UPS operations ........................................................................................................................... 64

Mimic screen .......................................................................................................................................... 64

Modes of operation ................................................................................................................................. 64

Standby mode .............................................................................................................................. 64

Normal mode ............................................................................................................................... 65

Battery mode ................................................................................................................................ 66

Auto-Bypass mode ......................................................................................................................... 66

Configuring the UPS ................................................................................................................................ 67

Changing the language.................................................................................................................. 67

Changing display functions ............................................................................................................. 67

Changing user settings ................................................................................................................... 68

Setting the Battery Low alarm level ............................................................................................................. 70

Running automatic battery tests ................................................................................................................. 71

Testing the front panel display ................................................................................................................... 71

Silencing an audible alarm ....................................................................................................................... 71

Verifying the REPO port connection ........................................................................................................... 71

Powering down the standalone UPS ........................................................................................................... 72

Powering down an individual paralleled UPS .............................................................................................. 72

Powering down the parallel system ............................................................................................................ 73

Communication .......................................................................................................................... 74

Installing communication options and control terminals ................................................................................. 74

Communication options ............................................................................................................................ 75

DB-9 communication port................................................................................................................ 75

Control terminals ..................................................................................................................................... 76

Relay output contacts ............................................................................................................................... 76

Programmable signal inputs ...................................................................................................................... 77

Parallel communication ............................................................................................................................ 77

Mode transfers .............................................................................................................................. 78

Redundant signal wiring ................................................................................................................. 78

Auto-identification .......................................................................................................................... 78

Metering ...................................................................................................................................... 79

Power management ....................................................................................................................

HP UPS Power Protection Agent overview ................................................................................................... 80

Features ................................................................................................................................................. 80

Maintenance .............................................................................................................................. 81

Removing the UPS front bezel ................................................................................................................... 81

Removing the ERM front bezel ................................................................................................................... 81

Replacing the UPS electronics module ........................................................................................................ 81

Replacing UPS X-Slot cards ....................................................................................................................... 83

Configuring the Parallel UPS Card ............................................................................................................. 84

Contents 4

Replacing the batteries ............................................................................................................................. 87

Important battery safety information ................................................................................................. 87

Battery care and storage guidelines ................................................................................................. 87

UPS battery replacement procedure ................................................................................................. 88

Testing the new battery module ....................................................................................................... 89

Replacing the UPS ................................................................................................................................... 89

Replacing the ERM .................................................................................................................................. 90

Updating the UPS firmware ...................................................................................................................... 91

Verifying the HP UPS Management Module firmware version .............................................................. 91

Configuring a USB to serial converter ............................................................................................... 91

Reassigning the USB COM ports ..................................................................................................... 92

Troubleshooting .......................................................................................................................... 94

LED and audible alarm troubleshooting ...................................................................................................... 94

Silencing an audible alarm ............................................................................................................. 95

Abnormal output voltage at startup ............................................................................................................ 95

Battery breaker ....................................................................................................................................... 95

Battery connection condition ..................................................................................................................... 96

Battery low condition ............................................................................................................................... 96

Battery test condition ................................................................................................................................ 96

Bypass is unavailable .............................................................................................................................. 96

Check Parallel Board condition ................................................................................................................. 97

Configuration error and UPS does not start ................................................................................................. 97

Phase rotation verification ........................................................................................................................ 97

Power is not available at the UPS output receptacle ..................................................................................... 97

Protected equipment is not on ................................................................................................................... 98

Overload condition ................................................................................................................................. 98

Overtemperature condition ....................................................................................................................... 98

Redundancy loss due to overload .............................................................................................................. 98

Selective trip ........................................................................................................................................... 99

Site wiring condition ................................................................................................................................ 99

UPS detects software incompatibility .......................................................................................................... 99

UPS does not power down ....................................................................................................................... 99

UPS does not power up ............................................................................................................................ 99

UPS does not provide the expected backup time ....................................................................................... 100

UPS does not transfer to Auto-Bypass mode .............................................................................................. 100

UPS is on battery ................................................................................................................................... 100

UPS is on bypass................................................................................................................................... 100

Specifications ........................................................................................................................... 101

Model list ............................................................................................................................................. 101

UPS physical specifications ..................................................................................................................... 101

ERM physical specifications .................................................................................................................... 101

Power cord specifications ....................................................................................................................... 101

Power Bus Bar and Wireway specifications .............................................................................................. 102

HP 10642 G2 Rack specifications ........................................................................................................... 102

UPS input specifications ......................................................................................................................... 102

UPS output specifications ........................................................................................................................ 103

Environmental specifications ................................................................................................................... 103

Battery specifications ............................................................................................................................. 104

Battery runtimes .................................................................................................................................... 104

REPO port specifications ........................................................................................................................ 105

Spares ..................................................................................................................................... 106

Contents 5

Ordering spares .................................................................................................................................... 106

UPS spare parts list ................................................................................................................................ 106

Hardware options ................................................................................................................................. 106

Support and other resources ...................................................................................................... 107

Before you contact HP ............................................................................................................................ 107

HP contact information ........................................................................................................................... 107

Regulatory information .............................................................................................................. 108

Safety and regulatory compliance ........................................................................................................... 108

Turkey RoHS material content declaration ................................................................................................. 108

Ukraine RoHS material content declaration ............................................................................................... 108

Warranty information ............................................................................................................................ 108

Limited warranty .......................................................................................................................... 108

$250,000 Computer Load Protection Guarantee ............................................................................. 108

Pre-Failure Battery Warranty ......................................................................................................... 109

Electrostatic discharge ............................................................................................................... 110

Preventing electrostatic discharge ............................................................................................................ 110

Grounding methods to prevent electrostatic discharge ................................................................................ 110

Acronyms and abbreviations ...................................................................................................... 111

Documentation feedback ........................................................................................................... 112

Index ....................................................................................................................................... 113

Contents 6

Component identification

3 Phase UPS overview

The HP 3 Phase UPS protects your sensitive electronic equipment from the most common power problems including power failures, power sags, power surges, brownouts, and line noise.

Power outages can occur when you least expect it and power quality can be erratic. These power problems have the potential to corrupt critical data, destroy unsaved work sessions, and damage hardware - causing hours of lost productivity and expensive repairs.

With the HP 3 Phase UPS, you can safely eliminate the effects of power disturbances and guard the integrity of your equipment. The HP 3 Phase UPS is designed for critical applications such as ultra high—density blade servers in a data center environment.

Providing outstanding performance and reliability, the HP 3 Phase UPS unique benefits include:

• High-density three-phase input, three-phase output UPS

• Scalable to 60 kW (redundant N+1 configuration) by connecting up to six additional parallel UPS

modules. Each UPS in the parallel system connects to a Power Bus Bar pre-installed in the rear of a rack. Racks

can be configured for bottom or top entry A Parallel UPS Card in each paralleled UPS provides connectivity for system metering and operational

mode control. In a parallel system not fully loaded, the system will shift load to UPSs with the strongest batteries or additional ERMs to maximize runtime when on battery. Parallel systems can be configured for capacity or redundancy.

• 6U UPS height, 3U ERM height

• Normal operating mode that minimizes heat generation by operating at typically >98% efficiency

The UPS filters incoming AC power and provides consistent power to your equipment without draining the battery.

• For utility line input that exceeds normal operating range, automatic transfer to an online,

double-conversion, high-frequency UPS design with pure sine wave output and power-factor correction

• EBM technology that uses advanced battery management to increase battery service life, optimize

recharge time, and provide a warning before the end of useful battery life

• Extended runtime with up to four ERMs per UPS

• Hot-swappable electronics module and batteries that simplify maintenance by allowing you to replace

them safely without powering down the critical load

• Emergency shutdown control through the REPO port

• HP UPS Management Module for network connectivity with monitoring and control

• Firmware that is service upgradeable through the standard DB-9 communication port

• Backed by worldwide agency approvals

Component identification 7

The Power Bus Bar for parallel systems, mounted in the rear of an HP rack, provides the required input and

LED display

output connections for the paralleled UPSs and has a single system-rated input connection. The parallel UPS system can be installed with Output Power Modules or connected to rack-mounted power distribution systems.

Note these guidelines when configuring the UPS standalone unit or parallel system:

• There is a maximum of four ERMs per UPS.

• Mount ERM(s) for a standalone UPS directly below the UPS or, with rack side panels removed, in an

adjacent rack to the left of the rack containing the UPS.

• Mount ERMs for a parallel system in an adjacent rack to the left of the rack containing the UPSs (rack

side panels removed).

• For consistent runtimes, each UPS in a parallel system should have the same number of ERMs.

• Some load equipment may require phase rotation or phase relationship coordination to ensure proper

operation. Review your equipment manufacturer’s power requirement documents to ensure that your connected equipment operates correctly.

UPS front panel

Item Description

1 2 3 4

Battery compartment Control buttons

Electronics compartment

Component identification 8

UPS front panel controls

Item Description Function

1 2 3 4

Left arrow or ESC Cancel/return to the previous menu Up arrow Scroll through the menu structure Down arrow Scroll through the menu structure Right arrow or enter Select an option

UPS front panel LED indicators

Item LED description

1 2

Power On On Battery

Component identification 9

Item LED description

Input/output power connectors

Output connector (only for use with output module)

3 4

Auto-bypass Alarm

For more information, see "LED and audible alarm troubleshooting (on page 94)" .

UPS rear panel

Item Description

1 2 3 4 5 6 7 8

9 10 11

NOTE: For proper UPS operation, be sure that the terminal block jumpers are inserted as shown.

Communications terminal block Output circuit breaker Input circuit breaker Battery circuit breaker

ERM connector Option card slots

Ground bonding screw DB-9 service port REPO port (NO and NC)

REPO port

WARNING: The REPO circuit is an IEC 60950 safety extra low voltage (SELV) circuit. This circuit

must be separated from any hazardous voltage circuits by reinforced insulation.

Component identification 10

CAUTION:

48 S1, “Electrical Installation of the Buildings, Part 4: Protection for Safety, Chapter 46:

• Do not connect the REPO port to any utility connected circuits. Reinforced insulation to the

utility is required. The REPO switch must have a minimum rating of 24 Vdc and 20 mA and be a dedicated latching-type switch for the 3 Phase UPS only, no other device or circuit including a single phase UPS. The REPO signal must remain active for at least 250 ms for proper operation.

• To ensure that the UPS stops supplying power to the load during any mode of operation, the

input power must be disconnected from the UPS when the EPO function is activated.

NOTE: For Europe, the emergency switch requirements are detailed in Harmonized document

HD-384Isolation and Switching.”

The UPS includes an isolated REPO port. When properly wired, the REPO feature allows the power at the UPS output receptacles to be switched off from a remote location. When REPO is activated, the UPS powers down all converters, de-energizes all system relays, trips the UPS battery circuit breaker, and powers down within 10 to 15 seconds. However, the unit continues to have logic power (the display is still active) and is not fully powered down until input power is disconnected from the unit. This feature can be used for powering down the load and the UPS by thermal relay, for example in the event of room overtemperature.

To use this feature, the REPO port must be connected to a remote switch (not supplied). The REPO switch is used in conjunction with a main disconnect device that removes the AC source from the input of the UPS. When the switch is activated:

• The REPO feature immediately powers down protected devices and does not utilize the orderly

shutdown procedure initiated by power management software.

• The REPO feature shuts down UPS units operating under either utility or battery power.

Keep the REPO connector installed in the REPO port on the UPS even if the REPO function is not needed. The REPO connection are listed below:

Wire function Terminal wire size rating Suggested wire size

L1 L2

There are two REPO positions, normally-open (NO) or normally-closed (NC). The pins on the NC REPO connector are connected together. When this connection is open, the logic circuitry completely shuts down the UPS, thus preventing the power from supplying the load. To use NC REPO, remove the jumper wire and connect an NC external switch. To use NO REPO, connect an NO external switch. For REPO locations, see Connecting REPO port

NOTE: If the UPS was operating on battery power when the remote switch was closed, no power

is available to the load devices until utility power is restored and the UPS has been manually powered up.

To restore power to the load devices after the REPO feature is activated, press the Power On button after the AC source is reconnected to the UPS.

IMPORTANT: Pressing and holding the Power On button without utility present normally initiates

a battery start and the UPS assumes the load. However, if the Power On button is pressed and a REPO is detected, battery start is inhibited and the UPS is not able to assume the load. The electronics module fan spins and the Alarm LED and an audible alarm are active as long as the Power On button is held.

4–0.32 mm2 (12–22 AWG) 0.82 mm2 (18 AWG) 4–0.32 mm2 (12–22 AWG) 0.82 mm2 (18 AWG)

Component identification 11

ERM rear panel

Item Description

1 2 3

Circuit breaker ERM input connector (from another ERM output) ERM output connector (to the UPS or another ERM)

Component identification 12

UPS installation

A risk of personal injury from electric shock and hazardous energy levels exists. The

Precautions

Save these instructions. This document contains important safety instructions that should be followed during installation, operation, and maintenance of the UPS and batteries.

WARNING:

installation of options and routine maintenance and service of this product must be performed by individuals who are knowledgeable about the procedures, precautions, and hazards associated with AC power products.

This symbol indicates that the UPS exceeds the recommended weight for one individual

140 kg

307 lb

to handle safely.

WARNING: To reduce the risk of personal injury or damage to the equipment, observe

local occupational health and safety requirements and guidelines for manual material handling.

This symbol indicates that the ERM exceeds the recommended weight for one individual

77 kg

170 lb

to handle safely.

WARNING: To reduce the risk of personal injury or damage to the equipment, observe

local occupational health and safety requirements and guidelines for manual material handling.

WARNING: To prevent personal injury from earth conductor leakage current:

• Do not operate the UPS while disconnected from the utility power source.

• Disconnect load devices before disconnecting the UPS from the utility power source.

Preparing to install the hardware

Before installing the hardware:

1. Be sure the necessary tools and materials (on page 13) are available.

2. Select an installation site ("Selecting a site" on page 14).

Tools and materials

3. Prepare the equipment ("Readying the equipment" on page 14) for installation in the rack.

The following tools are required for installation:

• Phillips screwdriver

• 10-mm hex-nut wrench

• T-25 Torx driver

A cage nut-fitting tool is supplied with the rack.

UPS installation 13

Selecting a site

WARNING: To prevent fire or electric shock, install the unit in a temperature- and

When selecting a site, consider the following factors:

• Elevated operating ambient temperature—If the equipment is installed in a closed or multi-unit rack

• Reduced air flow—In the rack, the rate of air flow required for safe operation of the equipment must not

• Circuit overloading—Consideration should be given to the connection of the equipment to the supply

• Reliable earthing—Reliable earthing of rack-mounted equipment should be maintained. Particular

• Electrical requirements—All models require a dedicated (unshared) branch circuit, suitably rated for the

humidity-controlled indoor environment, free of conductive contaminants.

assembly, the operating ambient temperature of the rack environment might be greater than room ambient temperature. Install the equipment in an environment compatible with the operating temperature ("Environmental specifications" on page 103).

be compromised.

circuit and the effect that overloading of the circuits might have on overcurrent protection and supply wiring. Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.

attention should be given to supply connections other than direct connections to the branch circuit, such as the use of power strips.

specific UPS as stated in "Input specifications" .

Readying the equipment

1. Check the battery recharge date specified on the label that is affixed to the shipping carton.

IMPORTANT: Do not use the battery if the recharge date has passed. If the date on the battery

recharge date label has passed without the battery being recharged, contact an HP authorized

2. Transport the packaged unit to its installation location.

3. Unpack the equipment near the rack where the unit will be assembled.

service representative for directions.

Installing the mounting rails

WARNING: To reduce the risk of personal injury or damage to the equipment, be sure that:

• The leveling feet are extended to the floor.

• The full weight of the rack rests on the leveling feet.

• The stabilizing feet are attached to the rack if it is a single-rack installation.

• The racks are coupled together in multiple-rack installations.

• Only one component is extended at a time. A rack may become unstable if more than one

component is extended for any reason.

WARNING: A risk of personal injury or damage to the equipment exists. Uneven loading of

equipment in the rack might cause the rack to become unstable. Install the heavier components first, and then continue to populate the rack from the bottom to the top.

UPS installation 14

CAUTION: Always plan the rack installation so that the heaviest item is on the bottom of the rack.

Install the heaviest item first, and continue to populate the rack from the bottom to the top.

NOTE: Mounting hardware for square- and round-holed racks is included in the UPS kit.

1. Select the proper holes in the rack for positioning the UPS in the rack.

The UPS rails are installed in positions 1 and 12.

2. Loosen the hex nuts, and extend the brackets to the desired length.

UPS installation 15

Insert screws through the rack into the mounting rail and the front of each mounting bracket.

4. Install cage nuts or clip nuts into the rear of the rack.

UPS installation 16

Insert screws through the mounting rail into the cage nuts or clip nuts.

6. Tighten the hex nuts.

IMPORTANT: If preparing the rails for integrated shipping, install the rear mounting brackets.

Installing the UPS

Before installing the UPS, review and observe all warnings in "Precautions (on page 13)."

WARNING: A risk of personal injury or damage to the equipment exists. Uneven loading of

equipment in the rack might cause the rack to become unstable. Install the heavier components first, and then continue to populate the rack from the bottom to the top.

UPS installation 17

CAUTION: Always plan the rack installation so that the heaviest item is on the bottom of the rack.

Install the heaviest item first, and continue to populate the rack from the bottom to the top.

1. Install the mounting rails ("Installing the mounting rails" on page 56, "Installing the mounting rails" on

page 14).

2. With one person on each side of the carton, lift the chassis and lower it to the floor in front of the rack.

3. Install the mounting ears on the chassis using the screws provided.

4. With one person on each side, lift the chassis to rail level and slide the chassis on the mounting rails.

5. Attach the chassis to the rack using the supplied screws.

6. If using the rear mounting brackets, be sure that the bracket tabs are fully inserted into the rear panel

cutouts, then tighten the brackets.

UPS installation 18

Removing the UPS battery bracket

Be sure that all circuit breakers on the rear panel of the UPS are in the Off position.

Installing the batteries

WARNING: To prevent personal injury, prepare the area and observe all materials-handling

procedures when transporting a battery module. Battery modules weigh 20 kg (44 lb).

UPS installation 19

Replacing the UPS battery bracket

Attaching the UPS front bezel

1. Connect the cable to the electronics module.

2. Attach the UPS front bezel.

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.

UPS installation 20

The ground bonding cable is not included.

Connecting the REPO port

This UPS has two REPO ports, normally-open and normally-closed. Before connecting to a REPO port, review and observe all warnings.

WARNING: The pins on the REPO port are polarity sensitive. Be sure to verify polarity while

HP recommends using different colors for the positive and negative wires. To avoid inadvertant EPO:

• 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.

connecting the REPO port in parallel with other HP UPSs.

WARNING: To meet the requirements stated in NEC (NFPA 70) Articles 645-10 and 645-11, a

UPS installed in a computer equipment room must be connected to a REPO circuit.

NOTE: Wire the connector block using stranded, nonshielded wire (AWG #22 - #18, or

equivalent).

For more information about the REPO port, see "REPO port (on page 10)" . For information about verifying the REPO connection, see "Verifying the REPO port connection (on page 71)"

Connecting to a normally-open contact

IMPORTANT: The remote switch must be in the open position to enable power to the UPS output.

UPS installation 21

NOTE: The REPO wiring of a standalone UPS can be connected with the REPO wiring of a

parallel system if the same sense (NO or NC) contacts are used. Be sure to match the polarity for

the contacts.

1. Verify that the UPS is powered down and all power sources are removed. For more information, see

"Powering down the standalone UPS (on page 72)."

2. Mount the remote REPO switch. HP recommends mounting the REPO switch near the operator's

consoles or near the exit doors. For enclosure dimensions and wiring knockouts, see the REPO switch manufacturer's installation instructions.

3. Connect the appropriate external switch to terminal block 4, normally-open REPO.

IMPORTANT: Always test the REPO function before applying the critical load to avoid accidental

load loss. For more information, see "Verifying the REPO port connection (on page 71)."

4. Reconnect terminal block 4, normally-open REPO, and then power on the UPS manually to restart. Pins

should remain open to keep the UPS running. Maximum resistance is 10 ohm.

5. Verify that the jumper is inserted in terminal block 5.

Connecting to a normally-closed contact

IMPORTANT: The remote switch must be in the closed position to enable power to the UPS

output.

NOTE: The REPO wiring of a standalone UPS can be connected with the REPO wiring of a

the contacts.

UPS installation 22

1. Verify that the UPS is powered down and all power sources are removed. For more information, see

"Powering down the standalone UPS (on page 72)."

2. Mount the remote REPO switch. HP recommends mounting the REPO switch near the operator's

consoles or near the exit doors. For enclosure dimensions and wiring knockouts, see the REPO switch manufacturer's installation instructions.

3. Connect the appropriate external switch to terminal block 5, normally-closed REPO, and then discard

the jumper wire.

IMPORTANT: Always test the REPO function before applying the critical load to avoid accidental

load loss. For more information, see "Verifying the REPO port connection (on page 71)."

4. Reconnect terminal block 5, normally-closed REPO, and then power on the UPS manually to restart. The

pins must be shorted to keep the UPS running. Maximum resistance is 10 ohm.

Connecting the UPS to utility power

WARNING: To prevent injury from electric shock or damage to the equipment:

• Plug the input line cord into a grounded (earthed) electrical outlet that is installed near the

equipment and is easily accessible.

• Do not disable the grounding plug on the input line cord. The grounding plug is an important

safety feature.

Connect the UPS to a grounded utility power outlet.

• Do not use extension cords.

UPS installation 23

Switching on the UPS battery circuit breaker

When the UPS is plugged in and the battery circuit breaker is on, the UPS automatically enters Standby mode and begins charging the batteries.

Connecting devices to the UPS

CAUTION: Do not plug laser printers into the UPS output receptacles. The instantaneous current

Before connecting devices, verify that the UPS will not overload by checking that the ratings of the devices do not exceed the UPS capacity. If the equipment rating is listed in amps, multiply the number of amps by the nominal AC source to determine the VA.

To provide additional receptacles:

• For the 8kVA models—Plug a PDU into the UPS output receptacle at the end of the power cord.

• For the 12kVA models—

drawn by this type of printer can overload the UPS.

a. Install the included output module on the rear rack frame.

UPS installation 24

Plug the output module into the special UPS output receptacle, located on the rear of the UPS.

Item Description

1 2 3 4 5 6

Rack corner post Mounting locations Mounting top bracket Output cord Mounting bottom bracket Input cord

Charging the UPS batteries

With the UPS in Standby mode, allow the batteries to charge before putting the UPS into service.

IMPORTANT: Charge the batteries for at least 48 hours before supplying backup power to

devices. The batteries charge to:

• 80 percent of their capacity within 5 hours

• 100 percent of their capacity within 48 hours

Powering up the standalone UPS

NOTE: Be sure that the total equipment ratings do not exceed the UPS capacity to prevent an

1. Switch the UPS input circuit breaker to the On position.

overload alarm.

2. Wait for the UPS front panel display to illuminate.

The Alarm LED flashes.

3. Check the UPS front panel display for active alarms or notices (other than "Batteries Disconnected").

Resolve any active alarms before continuing. For more information, see "Troubleshooting (on page

94)" .

4. Switch the UPS battery circuit breaker to the On position.

UPS installation 25

If optional ERMs are installed, switch all ERM battery circuit breakers to the On position. Be sure that the "Batteries Disconnected" alarm has cleared. Be sure that no other alarms appear on the

UPS front panel display. If the Alarm LED is flashing, do not proceed until all alarms clear. Check the UPS status from the front panel to view the active alarms. Correct the alarms and restart if necessary.

6. Press any button once and then press the left arrow button to select the TURN UPS ON/OFF menu.

7. Press the down arrow button to select the TURN UPS ON option. Press the left arrow button.

8. Confirm the selection. Press and hold the left arrow button for three seconds, until the UPS stops

beeping. The UPS front panel display indicates "UPS starting..." while relays click and the fans start. The display

returns to the status menu. Be sure that the Power On LED illuminates. If the Alarm LED is flashing, do not proceed until all alarms are clear. Check the UPS status from the front

panel to view the active alarms. Correct the alarms and restart if necessary. The UPS should be in Operate mode.

9. Switch the output circuit breaker to the On position.

10. To return to the default logo screen, press the ESC button.

Installing in a parallel configuration

WARNING: This equipment must be installed by a licensed electrician or trained service

A UPS connected to a Bus Bar with a paralleling line cord is identified as a member of the parallel system. The Bus Bar connects the line and load to a common power bus. A parallel system can be configured for capacity or redundancy.

The UPS models in a parallel configuration require a dedicated branch circuit that meets the following requirements:

• Circuit with overcurrent protection, depending on parallel configuration:

Number of UPSs in parallel system

3 4 5 6 (N+1 system)

• Three-phase, 4-wire plus ground, 208 Y/120 V nominal (NA) or 400 Y/230 V nominal, 380-415 VAC

personnel familiar with high-power circuitry

HP 3 Phase NA HP 3 Phase INTL

150 A 75 A 200 A 100 A 225 A 125 A 225 A 160 A

acceptable (INTL)

• 50/60 Hz

• The breaker must be wall-mounted and be readily accessible to the operator

• Flexible or rigid metal conduit

Installing the input and output wiring

Be sure that the UPSs are properly installed in individual rail kits in a rack containing a Bus Bar.

UPS installation 26

Bottom entry

1. Remove the UPS above the wireway. See "Replacing the UPS (on page 89)" .

2. Remove the eight screws on the wireway top cover and retain.

3. Slide the cover back and off the wireway and retain.

4. Remove the six screws on the conduit landing plate and retain.

5. Remove the plate and retain.

6. Use a Greenlee punch to provide one or more holes in the conduit landing plate to accommodate the

input and output wiring from the utility to the Power Bus Bar.

7. Replace the conduit landing plate.

8. Reinstall the UPS above the wireway.

UPS installation 27

Top entry

Top entry wiring does not interfere with access areas for the fans, connectors, breakers

Use a Greenlee punch to provide one or more holes in the top of the wireway. Install one or more holes in the center rear of the top of the racks.

NOTE:

or X-Slot cards on any HP 3 Phase UPS. See the wireway label.

Wiring the terminal block

Connect the input, output and ground wires to the Power Bus Bar terminal block. Route the three input phases and the input neutral through the ferrite assembly.

Wire gauge depends on overcurrent protection rating required. For more information, see "Installing in a parallel configuration (on page 26)." Reference the NEC, NFPA 70, for wire sizing.

UPS installation 28

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