American Power Conversion MatrixTM UPS User Manual

Matrix

TM

UPS

User’s Manual

208/240 Vac,

60 Hz version

NOTE: Printing this document may cause

printer overflow. If this occurs, try printing

small groups of pages.

American Power Conversion

American Power Conversion n 132 Fairgrounds Road

West Kingston, Rhode Island n 02892 n Phone [phone]

Part Number: 990-7007-B Revision: 3 Date: 12/21/94 Approved: DAA

Note: Specifications contained herein are subject to change without notice.

Copyright © 1994 American Power Conversion. All rights reserved.

1. Introduction

2. Safety

3. Presentation

Isolation Unit (IU)
Electronics Unit (EU)
Battery Pack

4. Installation

Receiving Inspection, Protection Strategies,
Moving the UPS, Placement
Input Voltage Selection
Module Interconnections
Emergency Power Off (EPO) Interface
Start-up
Input Plug Incompatibility

5. Operation

Modes of operation
Display and controls operation

6. UPS Monitoring

Computer interface port

Table of Contents

7. Difficulty

Troubleshooting chart
Fault messages
Replacing the Electronics Unit
Replacing or adding Battery Packs
Obtaining service

8. Storing the UPS

9. Specifications

Recharge and Run Times

1. Introduction

1.1 Overview

The UPS is a high-power enhanced line interactive uninterruptible power source designed to provide clean, reliable AC
power to computer, data handling, and telecommunications loads. Normally, the UPS operates "on-line" and provides
power to the load derived from the input utility source. When operating on-line, the UPS continuously regulates the load
voltage by compensating for voltage fluctuations occurring over a wide range on the utility. A multilevel transformer tap
changing circuit provides this regulation while attaining extremely high levels of on-line efficiency. In response to the
need to adjust the load voltage, the UPS temporarily operates the load from power derived from the battery while an
appropriate transformer tap change is made. In the event of unacceptable line conditions, transfer of load power from the
utility to the inverter occurs synchronously and is virtually seamless under all conditions. The voltage waveshape
delivered during "on-battery" operation is a low distortion sine wave. Resynchronization and retransfer of load power to
the utility is automatic upon recovery of the line voltage to within normal limits.

A complete UPS system consists of three module types. The UPS is comprised of an Electronics Unit
(EU), mounted atop an Isolation Unit (IU). Numerous Battery Packs can be purchased and plugged
together on-site to provide the desired run time. The EU is self-connecting to the IU when mounted and
is secured in place with the turn of an oversized hand screw. The EU contains the UPS’s microprocessor
controls, inverter, battery charger, transfer and tap changing circuits, remote interfaces, and the user
control and display panel. The IU contains the UPS’s isolation transformer, EMI/RFI filtering and surge
suppression circuits, bypass circuit, and the utility and load wiring interfaces. The Battery Packs are
"daisy chained" pack-to-pack, and to the EU, using a heavy duty cable and lockable connector system.
Intelligent communications between Battery Packs and the EU is provided via a flat cable terminated
with modular plugs. Each Battery Pack contains four high capacity batteries and microprocessor
controlled electronics for communications and for battery pack voltage and current monitoring.

1.2 Hot Swappable Modules

The Isolation Unit is capable of autonomous operation and allows service or upgrade of the Electronics Unit without
interruption of power to the load. In addition, a worn Battery Pack can be replaced, or new packs can be added, while
maintaining power to the load. In the event of EU failure, functions controlled by the EU are automatically bypassed and
the IU operates autonomously. For servicing, this bypass mode may be selected manually.

1.3 Emergency Power Off (EPO)

For applications where, for safety reasons, power to all room equipment may be cut off, the UPS provides a remote
Emergency Power Off interface.

1.4 Display

Local UPS user interface is served by a display and control panel containing a back-lit 2x16 character display and three
pushbuttons. Using the pushbuttons, menus for the display of UPS status information, UPS control commands, UPS
setup, UPS tests, and UPS diagnostics are shown. Critical UPS functions can be password protected. A loud audible
alarm warns of operating modes that could result in the loss of power to the load without user intervention.

1.5 Remote Interfaces

The UPS provides a remote computer interface capable of full RS-232 communications. When combined with
PowerDoctor UPS monitoring software and a serially connected local DOS PC, all functions of the local display and
control panel are duplicated and power quality related events can be logged. PowerChute plus offers all the features of
PowerDoctor, plus the ability to control orderly and unattended network or multi-user computer system shutdown during
an extended power outage. Also available for the UPS is the SNMP (Simple Network Management Protocol) Adapter to
provide load type independent remote monitoring and management across Ethernet or Token Ring based LANs or
WANs capable of routing IP messages. Using any standard Network Management System (NMS) and the SNMP
Adapter, the UPS becomes manageable through a single familiar interface - from across your building to across the
world.

2. Safety

CAUTION !

n To reduce the risk of electric shock, disconnect the Uninterruptible Power Source from the mains before installing
computer interface signal cable (when used). Reconnect the power cord only after all signalling interconnections have
been made.

n Connect the Uninterruptible Power Source to a two-pole, three-wire grounding mains receptacle. The receptacle must
be connected to appropriate branch protection (fuse or circuit breaker). Connection to any other type of receptacle may
result in a shock hazard and may violate local electrical codes.

n This Uninterruptible Power Source has an internal energy source (the battery) that cannot be de­energized by the user. The output may be energized when the unit is not connected to a mains

supply.

n To properly de-energize the Uninterruptible Power Source in an emergency, move the rear panel I/O switch to the O
(off) position and disconnect the power cord from the mains.

n Avoid installing the Uninterruptible Power Source in locations where there is water or excessive humidity.
n Do not allow water or any foreign object to get inside the Uninterruptible Power Source. Do not put objects

containing liquid on or near the unit.
n To reduce the risk of overheating the Uninterruptible Power Source, avoid exposing the unit to the direct rays of the

sun. Avoid installing the unit near heat emitting appliances such as a room heater or stove.

3. Presentation

3.1 Isolation Unit (IU)

Rear View of Isolation Unit

1. Isolation Unit (IU)

The Isolation Unit contains the UPS’s isolation transformer, EMI/RFI and surge suppression, bypass circuits including
an auxiliary power supply, and utility and load wiring interfaces. The IU is capable of autonomous operation and allows
service of the Electronics Unit without interruption of power to the load.

2. Input circuit breaker (power ON / OFF)

The input circuit breaker controls power to the UPS. It protects the UPS and the service wiring from extreme overloads.

3. Cooling fan

The fan exhausts air from the IU and operates whenever the input circuit breaker is ON (I). If the fan fails, the UPS will
indicate an alarm condition. Under such conditions, the UPS will remain operating and is capable of delivering full
power to the load.

4. EU separating screw

The Electronics Unit separating screw is turned counter-clockwise to remove the EU for service. If this action is taken
while the UPS is on-line, the UPS will automatically transfer to bypass operation. See the Difficulty section of this
manual for the proper EU replacement procedure.

Note: The UPS’s display is blank when the EU separating screw is loosened. Control of the UPS is regained when the
screw is tightened and any control button is pressed.

5. Power distribution plate

The power distribution plate is removable for access to the input voltage selection taps. Optional Power Distribution
Unit (PDU) accessories are available from the factory with wiring devices other than those provided on the power
distribution plate. These PDU accessories are plugged into either a NEMA L6-30R receptacle 208 Vac output, or the
NEMA L14-30R receptacle 120/240 Vac output.

5a. NEMA 5-15R receptacles

Six 15 Amp rated NEMA 5-15R outlets provide a nominal 120 Vac for multiple small loads.

5b. NEMA 5-15R receptacle circuit breaker

Each NEMA 5-15R duplex receptacle is protected by a circuit breaker. This protection is necessary because the UPS is
capable of delivering more than the receptacle’s maximum current rating. The 3000VA model UPS power distribution
plate’s upper two NEMA 5-15R duplex receptacles are protected by a 12 Amp circuit breaker. The lower NEMA 5-15R
duplex receptacle is protected by a 15 Amp circuit breaker. All NEMA 5-15R duplex receptacles on the 5000VA model
UPS are protected by a 15 Amp circuit breaker.

5c. NEMA L6-30R receptacles

Two 30 Amp rated NEMA L6-30R twist-lock outlets provide 208 Vac for large loads.

5d. NEMA L14-30R receptacle circuit breaker

The 3000VA model UPS power distribution plate’s NEMA L14-30R and NEMA 5-15R receptacles are protected by a
two pole, 25 A circuit breaker. The 5000VA model UPS power distribution plate’s NEMA L14-30R is protected by a
two pole, 30 A circuit breaker.

5e. NEMA L14-30R receptacle

The 30 Amp rated NEMA L14-30R receptacle provides a nominal 120/240 Vac output.

6. NEMA L6-30P input plug

The 30 Amp rated input plug has a twist-lock feature to prevent accidental disconnection.

3.2 Electronics Unit (EU)

1. Electronics Unit (EU)

Rear View of the Electronics Unit

The Electronics Unit contains the UPS’s microprocessor controls, inverter, battery charger, transfer and tap changing
circuits, remote interfaces, and the user control and display console. The EU may be separated from the IU for service.
See the manual section entitled Difficulty for instructions on removal of the EU.

2. Cooling fans

The EU cooling fans operate at two speeds depending upon mode of operation. The fans turn faster when the UPS is
heavily loaded while operating on-battery. If either of the fans fail while operating on-line, the UPS will indicate an
alarm condition and transfer to bypass operation. It either of the fans fail while operating on-battery, the UPS will
immediately indicate an alarm condition. Initially, the UPS will continue to provide power to the load. However, when
heavily loaded the UPS will eventually shut down in order to prevent the EU from overheating.

3. Battery Pack coupler

Battery Packs are connected at this coupler. A coupler clamp is installed over the coupler opening as furnished from the
factory. See the manual section entitled Installation for instructions on how to lock mated couplers.

4. Accessory panel

The EU is furnished with an opening that accepts accessories that work with the UPS. Call your dealer or the factory for
information on available accessories.

5. Computer interface port

See UPS Monitoring section of this manual for information on this interface port. Connect only factory supplied or
authorized UPS monitoring cables to this port.

6. Battery communications jack

The Battery Pack communications cable from the Battery Pack OUTPUT is connected at this jack.

7. Manual bypass switch

Pressing the manual bypass switch causes the UPS to transfer to the bypass mode of operation. While in this mode, the
load is supplied with power conditioned by the IU. However, the load will not be protected from utility voltage sags,
swells or blackouts. The EU is removed for service when the UPS is operating in bypass. See the Operation section of
this manual for more details on this mode of operation.

8. Emergency Power Off jack

For applications where, for safety reasons, power to all room equipment must be cut off, the UPS provides a remote
Emergency Power Off interface. A modular 6 position plug with offset latch fits this jack. See the Installation section
of this manual for instructions on how to connect to the jack.

3.3 Battery Pack

Rear View Front View

1. Battery Pack

The Battery Pack contains four series connected nominal 12 Vdc high-capacity sealed lead-acid batteries. Built-in ultra­low power consumption battery pack voltage and current monitoring electronics report pack status to the UPS. To
conserve battery capacity, the internal electronics are shut down when the battery communications cable is not
connected to the UPS, or when the UPS is not running.

2. INPUT battery communications jack

This input accepts battery status signals from the OUTPUT of another Battery Pack in the system. No connection is
made to this jack in a single Battery Pack system.

3. OUTPUT battery communications jack

The Battery Pack sends status signals to the UPS or to the INPUT of another Battery Pack (in a multiple Battery Pack
system) from this jack.

4. Battery Pack panel coupler

Additional Battery Packs are connected to this panel coupler. A coupler clamp is installed over the coupler opening as
furnished from the factory. See the Installation section of this manual for instructions on how to lock mated couplers.

5. Battery Pack cables

Each Battery Pack cable is made from "welding grade" wire to withstand abrasion or crimping in rough duty
applications.

6. Replace Battery indicator

The Replace Battery indicator is illuminated when the Battery Pack can no longer sustain a charge due to wear. See the
Difficulty section of this manual if the indicator is lit.

7. In-line Battery Pack coupler

The in-line Battery Pack coupler connects to the UPS or to a panel coupler on another Battery Pack.

8. Battery communications cable

Each Battery Pack is supplied with a battery communications cable.

4.0 Installation

4.1 Receiving Inspection

Once the UPS has been removed from its shipping container, it should be inspected for damage that may have occurred
while in transit. Immediately notify the carrier and place of purchase if any damage is found. The packing materials are
made from recyclable materials and should be saved for reuse or disposed of properly.

4.2 Protection Strategies

This UPS provides high performance power line protection to the loads. There are, however, other potential entry points
for damaging surges in information systems. These include serial ports (RS-232, RS-422, RS-485, etc.), parallel ports,
telephone lines, and network connections. These other entry points must be considered in developing a comprehensive
system protection strategy. Contact your dealer or call the number on the back cover of this manual for information on a
complete set of related products designed to accomplish total system protection.
Sensitive information systems can be further safeguarded by following these guidelines:

n Verify that all electrical outlets are properly grounded.
n Connect information systems to a different electrical service branch than heavy motor loads like air

conditioners, copiers, refrigerators, and heavy industrial machinery.

n Plug all power protection and information system equipment into the same branch where possible.

4.3 Moving the UPS

The UPS is heavy and should be moved to the operating site by hand truck. Two people are necessary to
load the UPS into position on the truck noseplate. Load the UPS onto the hand truck as shown below.
Use hand truck straps to stabilize the load while moving.

n Caution: Never attempt to lift the UPS by the Electronics Unit or by the EU separating screw!.

4.4 Placement

The UPS may be installed in any protected environment. The location should provide adequate air flow
around the unit, in an atmosphere free from excessive dust. Do not operate the UPS in an environment
where the ambient temperature or humidity is outside the limits given in the Specifications section of
this manual.

n Warning: Risk of electric shock exists inside the UPS. Input voltage tap selection and power distribution panel
replacement should be performed only by qualified service personnel.

4.5 Input Voltage Selection

As furnished, the UPS is configured to operate from a single phase 208 Vac source. In applications where it is desired to
operate from a 240 Vac source, the UPS must be reconfigured. To reconfigure the UPS, follow the steps listed below.

4.5.1. Turn off (0) the UPS’s input circuit breaker and unplug the input cord.

4.5.2. Using a medium size phillips screwdriver, remove all 10 screws that secure the power distribution

plate to the rear of the Isolation Unit. Move aside the power distribution plate. Take care not to strain
the wires connected to the devices on the plate.

208 Vac Input Configuration

4.5.3. Remove the phillips head 10-32 x 3/8" SEM screw holding the red Input Voltage Select Wire (see illustration) to

the tap bar marked "208 VAC SELECT."

4.5.4. Move the red Input Voltage Select Wire to the tap bar marked "240 VAC SELECT" and tighten the screw.

4.5.5. Check your work before reattaching the power distribution plate. Take care not to crimp or pinch

any of the wires connected to the devices on the power distribution plate.

240 Vac Input Configuration

4.6 Module Interconnections

Follow the instructions listed below to install and lock the battery couplers.

4.6.1. Using a phillips screwdriver, remove the battery coupler clamps from the Electronics Unit and from all but one
Battery Pack.

4.6.2. Turn the battery coupler clamp and refasten loosely at one side.

4.6.3. Mate the battery couplers in the fashion shown below. The Battery Packs are electrically connected in parallel.

4.6.4. Fasten remaining side of battery coupler clamp to lock couplers in place.

Typical installation showing mated battery couplers

Note: To reduce the risk of toppling, do not stack equipment more than 2 units high.

Follow the instructions listed below to install the battery communications cables.

4.6.5. Mate the battery cable plugs in the fashion illustrated below.

4.6.6. Each cable must connect between a Battery Pack OUTPUT and either the UPS’s BATT COMM

input, or another Battery Pack INPUT.

TO: UPS BAtt COM, or From: Battery Pack OUTPUT

TO: Battery Pack INPUT (multiple Battery Pack systems)

Typical installation showing mated battery communications cables