Best Power 0650 SERIES Guide

Axxium™Pro UPS
MODEL SERIES 0650
3 kVA – 18 kVA, 50 and 60 Hz
Uninterruptible Power System
User / Installation Manual
CONTAINS IMPORTANT SAFETY INSTRUCTIONS.
SAVE THESE INSTRUCTIONS.
Also refer to the Axxium Pro, Fortress, and UNITY/I Safety Information manual, ILS-1081.
LTM-1327A
© Copyright 2000, Best Power. All rights reserved.

2
Best Power Offices
Best Power
P.O. Box 280
Necedah, WI 54646 U.S.A.
Telephone: [phone]
Toll-free: 1-800-356-5794 (in U.S.A. and Canada)
Fax: [phone]
International FAX: [phone]
E-mail: [e-mail]
Best Power Technology Mexico, S.A. de C.V.
Golfo de Riga, 34
Colonia Tacuba
Mexico D.F. 11410
MEXICO
Telephone: [phone]
Toll-free: 1-800-711-8978 (in Mexico)
Fax: [phone]
E-mail: [e-mail]
Invensys Energy Systems, Pte. Ltd.
19 Neythal Road
SINGAPORE 628584
Telephone: [phone]
Fax: [phone]
E-mail: [e-mail]
Sola Australia Ltd.
13 Healey Road
Dandenong, Victoria 3175
AUSTRALIA
Telephone: [phone]
Fax: [phone]
E-mail: [email protected]
Best Power Technology Limited
BEST House
Wykeham Industrial Estate
Moorside Road
Winchester, Hampshire
S023 7RX
ENGLAND
Telephone: [phone]
Toll-free: 0800 378444 (in England)
Fax: [phone]
E-mail: [e-mail]
Best Power Technology (Germany) GmbH
Am Weichselgarten 23
D-91058 Erlangen
GERMANY
Telephone: [phone]
Toll-free: 0130-84-7712 (in Germany)
Fax: [phone]
E-mail: [e-mail]
Borri Elettronica Industriale Srl
Via dei Lavoratori, 124
20092 Cinisello Balsamo (Mi)
Milan, ITALY
Telephone: [phone]
Fax: [phone]

3
PARTI
USERINSTRUCTIONS
Contents
PARTI USERINSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
100 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
101 Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
102 Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
200 UPS Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
201 Physical Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
202 Functional Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
203 Operator Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
204 Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
300 Starting the UPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
301 Initial Startup Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
400 Using the Front Panel Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
401 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
402 Changing Parameter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
403 Reading the Axxium Pro System Logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
404 Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
500 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
501 Alarm Reason Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
600 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
601 Communication Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
602 DB9 Port Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
700 Maintenance and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
701 Routine Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
702 Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
703 Power Module Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
704 Service and Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
800 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
900 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
901 Limited Two-year Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
902 Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
903 Warranty Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
1000 How Do I... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
PARTIIINSTALLATIONINSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

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Figures
1. Axxium Pro System External Physical Features. . . . . . . . . . . . . . . . . . . . . 7
2. Axxium Pro UPS Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3. Axxium Pro UPS Functional Block Diagram. . . . . . . . . . . . . . . . . . . . . . . 8
4. Operator Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5. Communications Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6. Installing Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7. Axxium Pro System Menu Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8. Typical Active Alarm Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Tables
1. Control Panel Details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2. Inverter Log Reason Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3. Critical Alarm Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4. Non-critical Alarm Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5. Alarm Reason Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6. DB9 Port Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7. Axxium Pro UPS Operating Specifications. . . . . . . . . . . . . . . . . . . . . . . 25

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100 Introduction
This manual explains how to install, start, and operate your Axxium™Pro uninterruptible power system (UPS). It
also has information to help you solve Axxium Pro UPS problems. The manual contains specifications and
warranty information. If your Axxium Pro UPS is a hard-wired model (without a mains plug-in power
cord), your electrician should install the Axxium Pro system using the Installation Instructions in Part II
of this manual. If your UPS has one or more separate battery cabinets, follow the instructions in the Installation
Instructions to connect the cabinet(s) to the Axxium Pro UPS.
To find information in this manual, refer to the table of contents at the beginning of Part I and Part II.
Best Power is committed to outstanding customer service. If you have a problem or question, our Worldwide
Service center is ready to help you. Simply refer to the list of Best Power offices at the beginning of this manual
to contact the office nearest you. Please have the model and serial numbers of the chassis and power modules
available when you contact Best Power. (In the United States and Canada, you can call Worldwide Service toll-
free at 1-800-356-5737. Outside North America, contact your local sales office listed on the inside front cover of
this manual.)
You can also get more information about Best Power products using Best Power’s Fax-on-Demand service
(U.S.A. and Canada only) or World Wide Web site:
Service Fax on Demand: 1-608-565-9499, ext 9000 (U.S.A. and Canada)
World Wide Web Site: http://www.bestpower.com
101 Notices
•SAVE THESE INSTRUCTIONS. This manual contains important instructions for installation and
maintenance of the Best Power Axxium Pro Model Series 0650 UPS and batteries.
• Universal power modules (model ASY-0528, with white labels on the front) produce a single output voltage:
200, 208, 220, 230, or 240 VAC. Split-phase power modules (model ASY-0567, blue labels on the front)
produce two output voltages: 100/100, 120/120, 120/208 or 127/220 VAC. Do not mix the two types of
power modules in the same Axxium Pro cabinet.
• Battery modules to be used in the Axxium Pro system are model ASY-0529. Each battery module weighs
30 lb (14 kg). Use care in lifting and moving battery modules.
• All input and output wiring must be copper and adequate to carrying currents as listed in Table 7.
• Torque all bolts holding input and output power conductors to values specified in Table 12.
• Axxium™Pro, BestLink™, and BestDock™are trademarks of Best Power. CheckUPS®II is a registered
trademark of Best Power. Windows is a registered trademark of Microsoft Corporation.

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102 Safety Warnings
• Read and obey CAUTION statements regarding electrical wiring, battery modules, and external battery
cabinets. See Sections 300 and 1400.
• The user is required to provide power input (mains) and output disconnect devices for the UPS. These must
be within sight of the UPS, and easily accessible. For a mains plug-in power cord input, the plug serves as
the power input disconnect device, which must also be readily accessible.
200 UPS Description
The Axxium Pro UPS is a modular uninterruptible power system that contains battery modules and power
control (referred to as “power”) modules. These modules plug into a rack structure containing additional
communication, control, and display functions that enable integrated control of all power modules. The UPS is
housed in a single cabinet, with extra battery capacity housed in adjacent battery cabinets.
The pluggable power modules can be removed and replaced (hot swapped) without powering the UPS down if
the UPS has sufficient redundant capacity. Battery modules may also be hot swapped for maintenance. Power
control circuitry in the cabinet senses problems in power modules, and automatically transfers control to
redundant modules.
All power modules share the load requirements equally. For example, three power modules are capable of
supplying a total of 9 kVA. If a load requires only 4.5 kVA, each power module supplies 1.5 kVA to the output.
If one power module is removed or for some reason fails, each of the two remaining power modules would
supply half of the load, or 2.25 kVA. (In other words, redundancy exists when the load can be supplied by less
than all of the installed power modules.)
The UPS can be programmed for any level of redundancy; its output is limited such that an excess number of
power modules allow the failure of one or more modules without causing the UPS to lose any functionality.
An external bypass switch is required to be installed to remove the UPS completely from a power path. This
switch is optional but recommended for system servicability.
This section provides a brief overview of the cabinets and modules, and describes how the UPS operates as it
switches between various operating modes. These descriptions will help you understand how to turn the system
on and off, and when to switch it into various manual modes. The descriptions will also help in interpreting
displayed parameters and alarm messages.

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201 Physical Features
The Axxium Pro UPS is available in several cabinet sizes. Figure 1, showing the 3-slot and 9-slot
configurations, identifies basic Axxium Pro system features. (6-slot and 12-slot cabinets are also available.)
External battery cabinets are available in 6-, 9-, and 12-slot sizes.
Figure 1. Axxium Pro System External Physical Features
Front and Rear Views (3-slot cabinet)
4
5
3
7
6
6
8
10
13
11 12
9
2
4
1
Battery Cabinet Rear View
Power Module
(ASY-0528 and ASY-0567)
Battery Module
(ASY-0529)
Front and Rear Views (9-slot cabinet)
Legend
1 Operator Control Panel 5 Input Power (Mains) Cable (optional) 9 Secondary Stop Release
2 Front Cover Bezel 6 Battery Cabinet Cable (optional) 10 Latch Release
3 BestDock™ Ports 7 Cabinet Base 11 Handle/Latch Release
4 Power Outlets (optional) 8 Additional Battery Cabinet Cable 12 Handle Thumbscrew
(optional) 13 Insertion/Extraction Cams

8
6
35
11
7
9
110
8
24
Functional Elements
1 Input (mains) power
2 Input power (boost) converter
3 Internal DC power bus
4 DC/AC power inverter
5 Output relay
6 Bypass relay
7 Capacitor bank
8 Battery charger
9 Battery modules (parallel)
10 Line/battery relay
11 Isolation transformer (optional)
202 Functional Features
The Axxium Pro UPS operates in several different modes. Normally it operates under internal control, called
Auto Mode, to automatically protect loads connected to it. It also functions under operator control to enable
manual override should servicing or testing be required.
Figure 2 is an illustration of the operating modes. In Auto
Mode, the UPS automatically switches between modes
depending on line and load conditions.
Double Conversion mode produces output power from
the internal DC bus. The input AC power is rectified and
boosted to supply this DC bus. The UPS switches
automatically to and from Battery mode with no
interruption (0 ms transfer time) as AC input power drops
and returns. Batteries are charged in this mode.
Battery mode produces power from the batteries to supply the internal DC bus.
Internal Bypass (Bypass) mode shunts power flow around the DC/AC internal circuitry to keep the output
powered with no line conditioning. Electromagnetic interference (EMI) and surge circuitry still protect the loads
from voltage spikes and noise.
The High Efficiency mode is a user-programmable automatic mode of operation. This mode allows power to
flow through the internal UPS bypass path for as long as AC input stays within the user setpoints. If the input
voltage or frequency deviates beyond the user setpoints, the Axxium Pro system transfers to the Double
Conversion mode of operation. Complete loss of input voltage causes the UPS to transfer to Battery mode.
While in High Efficiency mode, the Axxium Pro system provides passive EMI filtering in the power path.
Figure 3. Axxium Pro UPS Functional Block Diagram
Figure 2. Axxium Pro UPS Operating Modes
(under Auto Mode control)
Double Conversion
(Line Conditioning)
Battery Off
Internal
Bypass

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Off mode turns off the output and most internal circuitry. Within this mode, another mode (Sleep) turns off all
internal circuitry when AC line is not present and battery voltage drops to a low threshold. If the Battery
Protect (BP) function is selected and input AC voltage is not present, the UPS goes into Sleep mode
immediately when the UPS is turned off. When input AC voltage returns, the UPS automatically recovers from
Sleep mode and, if the Autorestart parameter is enabled, switches to Double Conversion. Autorestart is enabled
as a factory default.
Figure 3 shows the basic functional elements of the UPS.
203 Operator Control Panel
The operator control panel has an alphanumeric display, three LED indicators, and six pushbuttons as described
in Figure 4 and in Table 1.
204 Power Connections
See Part II Section 1300 of this manual for details about connecting power to the UPS and how to connect load
equipment to the UPS.
For information about installing or replacing batteries, refer to Section 700, Maintenance and Service.
For information about connecting/disconnecting external battery cabinets, refer to Section 1400.
(1)
(2)
(3)
(4)
(A) (B) (C)
424 USER #3
Wout `
watts 2.37 KW
Slot Top ESC
Item Description
1Alphanumeric display of unit function and operating parameters. Also displays
alarm/data logs.
2Alarm LED (red). Lights to signal that the unit has detected an alarm condition.
3Battery LED (yellow). Lights to signal that the unit is operating on battery power.
4Line LED (green). Lights to signal that the unit is operating on AC line power and
producing output voltage.
A and B Multi-function buttons, as labeled by the bottom line of the alphanumeric display.
CMenu/Escape button, for moving into and out of display menus. Also, for avoiding a
change to a parameter value.
sand tMenu scroll up and down buttons. Also, for increasing/decreasing parameter value digits.
¿Enter button, to activate/accept displayed parameter or operating mode.
Figure 4. Operator Control Panel
Table 1. Control Panel Details

10
300 Starting the UPS
This section provides step-by-step instructions for starting your Axxium Pro system. Follow these procedures
closely to avoid potential damage to your equipment or the UPS and to protect yourself and others from
hazardous operating conditions.
Before starting the UPS, make sure that the temperature of the unit and all modules is within the range 0 to
+40 ºC (+32 to +104 ºF), and that relative humidity is between 5 and 95% (with no condensation).
1. CHECK INPUT POWER CONNECTIONS
1.a. If the unit is hardwired, make sure that an electrician has completed and tested the connection to the
proper power source. Check the connection of any power cables between the UPS and external battery
cabinets.
1.b. If the unit is not hardwired, plug the power cable of the unit into an approved, functional power outlet.
2. CONNECT COMMUNICATIONS CABLE (if required)
If the Axxium Pro UPS will be monitored and controlled by a computer system, follow this procedure to
connect the cable to the computer and UPS.
2.a. Locate the interface cable shipped with the UPS.
2.b. Plug the cable connector marked “UPS” into the
connector on the back of the UPS. Plug the other
connector into the connector on the computer. For
instructions about installing the CheckUPS
software, refer to the information accompanying
the CheckUPS CD-ROM and Section 601 of this
manual.
3. INSTALL MODULES
NOTE: Place battery modules below all power modules
in the UPS cabinet to maintain a low center of gravity.
CAUTION
To avoid potential equipment damage or personal injury, assume that the Axxium Pro system power
connections (outlets and distribution wiring) may have AC voltage present whenever AC input voltage or
DC battery voltage is applied. The UPS can create output voltage from its batteries even when there is no
AC input voltage. When AC input voltage is present, the Axxium Pro system can provide output voltage
even though its batteries are disconnected. To make sure there is no UPS output voltage, always disconnect
all of the AC input sources and unplug all strings of internal battery modules; if the UPS has one or more
separate battery cabinets, open the DC disconnect switch in each battery cabinet or unplug all battery strings
in each battery cabinet.
To reduce the risk of electrical shock, install the UPS in a temperature-controlled indoor area free of
conductive contaminants.
DB9 Connector for
Computer Cable
Figure 5. Communications Connector

11
NOTE: REMOVING INPUT POWER
Always put the Axxium Pro UPS into the Off mode before removing input power. Axxium Pro system batteries
will discharge if the input line voltage is disconnected or turned off without first turning off the Axxium Pro UPS.
If the input power source will be disconnected or turned off for more than a day or two, you should put the UPS
into Sleep mode. (Sleep mode allows the UPS to remain unpowered for up to 6 months without having to remove
or recharge batteries.)
Failure to properly power down the Axxium Pro UPS could permanently damage any installed batteries. Also, if
batteries become severely discharged, the UPS might not start immediately when input power is restored.
3.a. Remove the front bezel(s) covering the chassis rack.
The bezels have spring latches on the left and right
sides that hold them in place.
3.b. Insert battery modules into the chassis rack as shown.
Push each module in firmly until the front latch snaps to
hold it securely. Two battery modules (side-by-side) are
required to complete each battery string.
NOTE: All power modules in the Axxium Pro UPS
cabinet must be of the same type: Single-phase
(universal) modules have white labels; split-phase
modules have blue labels. Do not mix blue and white
modules in the same UPS cabinet
3.c. Insert all power modules into upper slots of the chassis
rack as shown in this drawing. To insert a module, tip the
front down slightly and lift the rear edge over a safety
stop on the center support rail. NOTE: Keep the
module handle extended until the module is fully inserted. Push the module in firmly. The power
module has a cam-latch at the base of the handle; raising the handle pulls the module into the rack. A
latch and thumbscrew at the top of the handle secure the handle. Record all power module serial
numbers on the warranty registration form (see Section 903).
3.d. Insert and latch battery modules into the chassis rack of all optional external battery cabinets. Make
sure that the DC disconnect switch on the back of the battery cabinet is closed (pulled out).
3.e. Reinstall cabinet front bezels.
4. TURN THE UPS ON
4.a. When AC line voltage is present on the input and at least one power module is installed, the UPS
display is automatically on. See Section 301 for setting initial operating parameters. Use the proper
operating panel buttons next to the display to put the UPS into the Auto mode or manually set it to
operate in Bypass mode or Battery mode. (NOTE: The unit has no physical On/Off switch.)
4.b. If the UPS has been turned off, press the On button (as labeled by the operating panel display) to turn
the UPS on again. NOTE: The UPS will not turn on if AC line input is not present.
4.c. If the UPS has been manually set to operate in Bypass or Battery mode, change the System Mode
menu selection (menu 3 1) to Auto to return to normal Auto mode operation.
4.d. Verify the proper output voltage on the front panel display.
NOTE: The first time you turn the UPS on, you must set or verify certain operating parameters before putting
it into operation. See Section 301 for details on configuring these parameters at initial start-up.
(3.c)
(3.b)
Figure 6. Installing Modules

12
5. CHECK UPS CONTROL
Test proper operation of optional external control signals and computer communication before connecting
loads. (See Section 602 for details.)
6. CONNECT EQUIPMENT TO UPS
6.a. Axxium Pro units with receptacles on the back: Plug the equipment into the UPS receptacles. Switch
on each piece of equipment. NOTE: The total volt-ampere load must not exceed the volt-ampere
rating of the entire cabinet.
6.b. Axxium Pro units without receptacles on the back: If there is an external bypass switch, turn it to
“UPS.” Otherwise, close the load distribution circuit breaker(s).
301 Initial Startup Parameters
The first time the UPS is turned on, you must set or verify certain operating parameters before putting it into
operation. Follow the procedure below to set these initial configuration parameters.
1. Enter the correct user security password: 0377. Move
to the digit you wish to change by pressing the buttons
below the <- and -> on the display. To change the
value of the selected digit, press the up-arrow (s) and
down-arrow (t) buttons. When the password shows
0377, press the Enter (¿) button.
2. On the next screen, select the desired language for the display. Again, use the up- and down-arrow
buttons to scroll between English, French, German, and Spanish. Make your selection by pressing the
Enter button.
3. The next two screens enable you to verify and adjust the internal clock for the correct local time. If the
time or the date is correct as displayed, press the Enter button to advance to the next configuration setting.
To set the correct time and date, press the <- and -> buttons to move to the digits you wish to change.
Press the up- and down-arrow buttons to increase or
decrease the value of each selected digit. When the dis-
played value is correct, press the Enter button.
4. The output voltage is the only actual operating
parameter you must set as part of the initial configura-
tion screens. After setting the time and date, select the
desired UPS output voltage using the up- and down-
arrow buttons. Possible selections are 200, 208, 220, 230, and 240 VAC. Press the Enter button when the
desired output value is displayed.
5. Decide whether to protect the UPS on/off function from
being changed by anyone other than qualified
personnel. Press the up- or down-arrow button to make
your selection; then press Enter. If a password is
required, the On and Off functions are accessible only
after first entering the correct password value (0377).
6. The UPS is now ready to operate, and displays the
normal On/Off function screen.
ON OFF Password?
No `
ESC
Set Time
time 14:51:38
<- -> ESC
ENTER PASSWORD
Password - 0000
<- -> ESC

13
400 Using the Front Panel Display
The front panel display, below, shows several important things. The numbers in the upper left corner (for
example, 424) are the display location within the operating menu structure. The word in the top center (for
example, USER ) is the security level, which allows various operating parameters to be changed.
The number in the upper right corner (for example, #3) signifies one of the slots (numbered from the top down)
in the cabinet rack. The number tells which power module slot that parameters are being displayed from. #0 is
defined as System, enabling you to observe overall system operation.
One or two triangles at the right of the display tells you which arrow buttons are active, for moving to various
parameters within a menu level. See Section 404 for the complete system menu.
The words or symbols in the bottom line of the display define the function of the three buttons below the
display. In the example drawing above, Slot (button A) enables you to observe the operation of a specific power
module (the module in slot #3, in this case) or the overall system (selected as slot #0). Top (button B) takes you
to the top item in the current menu level (in this case, 4 1). And ESC (button C) enables you to move out of the
current menu level (in this case, to menu 4).
During normal operation, the display appears as shown below. Md: indicates the current UPS operating mode
and St: indicates the operational state. The number of power modules (M) and number of battery module strings
(B) that are currently on line, and the total number of module slots in the chassis—for example, M4-B7-12—is
shown in the upper right corner of the display. (The count of battery strings does not include additional battery
strings contained in connected external battery cabinets.)
Operating parameters shown on the third line of the display vary depending on the operating mode. As shown
below, the UPS output voltage is displayed while the Axxium Pro UPS operational state is On Line.
(A) (B) (C)
424 USER #3
Wout `
watts 2.37 KW
Slot Top ESC
Md: AUTO M4-B7-12
St: ON LINE
acvout 232 V
Config OFF Menu

401 Parameters
A parameter is a factor describing how the Axxium Pro system is operating or will operate. Some useful
parameters are input and output voltage, input and output current, and battery voltage. The UPS measures or
records many other parameters. Some are operator-adjustable, such as the internal date and time and various
operating limits. All parameters are password-protected. Although every operating condition and parameter is
accessible through the display panel, you may change a value only if you have entered the correct password to
allow you to change it.
After making any parameter changes, delete the password level to protect the UPS against unauthorized
parameter changes. Press the Top or ESC buttons to return to the Enter Password screen. Press Enter to view the
default value (0000), and press the Enter button again to enter 0000, which invalidates the previous level.
Note: After 10 minutes of no button presses, the UPS automatically deletes any active password level and
returns to the normal running display.
402 Changing Parameter Settings
The method of changing any operating parameter follows the same procedure as setting initial parameters, as
described in Section 301. Begin by entering the correct password to allow the change. Use the Menu Map to
find the parameter you need to change, and move through the menu structure until the parameter name appears
on the display. Press ¿to enter a new value and, when you have changed the value, press ¿again to save the
change.
403 Reading the Axxium Pro System Logs
The Axxium Pro system makes an entry in its logs each time it sounds an alarm or runs on battery power. This
information can help in diagnosing power problems. You can display the UPS Inverter and Alarm logs on the
unit’s display panel; these logs are in menu 9.
Inverter Log
The inverter (battery mode) log is in menu 9, submenu 1. Move through the menu structure by pressing the
“Menu” button and pressing tto move down to menu 9. Press ¿to move to submenu 1 and press ¿again to
view the most recent entry in the inverter log.
The log stores up to 16 entries, in chronological order. You can use the sand tbuttons to scroll up and down
through the log entries. Each entry shows the the date and time the unit switched to battery operation (in 24-hour
time), and the duration of battery operation (in hours and minutes).
A typical entry might look like this:
In this example, the most recent inverter log (9 1 1) is being displayed. If the unit is still running on inverter
(battery power), an asterisk (*) is displayed beside the date. “09/29” is the date of the battery mode operation:
September 29. “13:56” means that battery mode operation started at 1:56 p.m. And “01:04” means the
batteries supplied power for 1 hour and 4 minutes. For further information about the entry, hold down ¿. The
bottom display line indicates a slot (drawer) number and a reason code associated with the entry.
Table 2 contains a description of all inverter reason codes.
14
911 #0
Inverter Log 1
09/29 13:56 01:04
Slot Top ESC

15
Table 2. Inverter Log Reason Codes
Alarm Log
The alarm log is in menu 9, submenu 2. Move through the menu structure by pressing the “Menu” button and
pressing tto move down to menu 9. Press ¿, and press tto move down to submenu 2. The display shows the
most recent entry in the alarm log.
The log stores up to 16 entries, in chronological order. You can use the sand tbuttons to scroll up and down
through the log entries. Each entry shows the alarm code, the alarm date and time (in 24-hour time), and the
duration (in hours and minutes.)
A typical entry might look like this:
In this example, the sixth most-recent alarm (9 2 6) is being displayed. “ A” means the Axxium Pro system
sounded alarm A (Low Battery). If the alarm is still active, an asterisk (*) is displayed beside the “ A.”
“02/05” is the date the alarm occurred: February 5. “1751” means the alarm sounded at 5:51 p.m. And
“04:35” means the alarm was active for 4 hours and 35 minutes.
Section 500 contains three tables explaining the alarm codes.
404 Menu Map
Figure 7 is an illustration of how to access all Axxium Pro system parameters. The menu structure has 12
primary-level menus, named Password (1) through Parameters (12). Under each primary menu are secondary
items, each numbered by its location under the primary menu. Use the various buttons as shown in the map to
navigate to the desired parameter. If you need to change the value of a parameter, you must begin by entering
the correct password value first. Parameter values can be observed, but most can not be changed, even though
you have entered the correct user password.
Reason
Code Meaning Explanation
1Line Was Lost Input voltage was lost.
2Battery Test Battery test initiated inverter operation.
3Manual Operator initiated inverter operation.
4Open Cell Battery failure caused by open cell.
5Weak Battery Battery failure caused by load test.
12
11
10
9
8
7
6
Incompatible Module
Insufficient Modules
Insufficient Batteries
Precharge Failure
Excessive Transfers
Module Failure
Phase Error
Wrong type of power module for intended system configuration.
Too few power modules; decrease load or add power modules.
Too few battery modules; decrease load or add battery modules.
Internal error – phone Best Power Worldwide Service or your nearest Best Power office.
Internal error – phone Best Power Worldwide Service or your nearest Best Power office.
Internal error – phone Best Power Worldwide Service or your nearest Best Power office.
Internal error – phone Best Power Worldwide Service or your nearest Best Power office.
926 #0
Alarm Log 1
A 02/05 17:51 04:35
Slot Top ESC

16
9 1 Inverter Log
(Logs 1 - 16)
9 2 Alarm Log
(Logs 1 - 16)
9 3 Clear Logs
2 System Mode Preference
1 Password Enter Password
(ESC)
(ESC)
(Menu)
10 System Tests 10 1 Battery Test
3SystemInfo
(Top)
3 1 Unit Time
3 2 Unit Date
3 3 Input Frequency
3 4 Output Frequency
3 5 Battery Volts
3 6 Run Time
3 7 Seconds on Batt.
3 8 AC Vin Ph. 1 -- N
3 9 AC Vin Ph. 2 -- N
3 10 AC Vout Ph. 1 -- N
3 11 AC Vout Ph. 2 -- N
3 12 AC Iin Ph. 1 -- N
3 13 AC Iin Ph. 2 -- N
3 14 AC Iout Ph. 1 -- N
3 15 AC Iout Ph. 2 -- N
3 16 VAout
3 17 VAout Ph. 1 -- N
3 18 VAout Ph. 2 -- N
3 19 Wout
3 20 Wout Ph. 1 -- N
3 21 Wout Ph. 2 -- N
3 22 % Full Load
3 23 % Load 1
3 24 % Load 2
3 25 Power Factor L1
3 26 Power Factor L2
(ESC)
7SystemControl
Configuration 7 1 Comm. Config
7 2 Battery Config
7 3 System Config
7 1 1 Del. Before Restart
7 1 2 Del. Before Shtdwn
7 1 3 Auto Restart
714SleepTime
7 1 5 Config. BestDock
7 1 6 Relay Mask (1)
7 1 7 Relay Mask (2)
7 1 8 Inv. Relay Delay
719EPOMode
7 1 10Ext. Bypass Mode
(Top)
(ESC) (ESC)
(ESC)
(ESC)
6System
Diagnostics 6 1 RO Value
6 2 Battery Results 6 3 Runtime at EOT
6 4 DC Volts at EOT
7 2 1 Const. I Duration
7 2 2 Const. V Duration
7 2 3 Eqlz. Chrg Duration
7 2 4 Eqlz. Chrg Interval
7 2 5 Inst. Eqlz. Duration
7 3 1 System VA Limit
7 3 2 Number Phases
7 3 3 Nominal Frequency
7 3 4 Nominal AC Vout
7 2 6 Test Interval
727TestTime
7 2 8 Maint. Chrg. Volts
7 2 9 Eqlz. Chrg. Volts
7 2 10External Capacity
(ESC)
5 Generator
Sensitivity
5 1 Low Frequency
5 2 High Frequency
53 SlewRate
5 4 Phase Lock
5 5 Freq Glitch Count
5 6 Line Delta
5 7 Transfer Delay
5 8 Low AC Out Delay
5 9 Auto Freq Mode
510 MaxDelta
(ESC)
4System
Identification 4 1 Model Name
4 2 Model Number 4 3 Serial Number
4 4 Unit Identification 4 5 Date Manufactured 4 6 Software Version
(Top)
(ESC)
8Alarm
Set Points 8 1 Low Vout Alarm
8 2 High Vout Alarm 8 3 Low Vbatt Alarm
8 4 Near Low Vbatt Alarm 8 5 High Vbatt Alarm 8 6 Low Run Time Alarm
(ESC)
9 Logs & History
(Top)
(Top)
(Top)
(ESC)
(ESC)
11 Parameters Parameter No.
(ESC)
Figure 7. Axxium Pro System Menu Map

17
500 Alarms
When the Axxium Pro UPS detects an alarm condition, it creates the following messages:
• lights the red LED next to the front panel display,
• sounds an audible alarm, and
• displays an alarm message.
When this happens, follow these steps:
1. Observe the display to find which alarm the Axxium Pro UPS is displaying. The parameters shown below the
alarm message give you more information about the alarm condition. Use the sand tbuttons to scroll up and
down through these parameters.To find out if more than one alarm is active, press ¿¿. This switches the display
between alarm messages. To silence the audible alarm, press button “A” below the display.
2. Find the alarm message in the tables below, and follow the instructions to resolve the problem. To clear an alarm
after resolving the problem, press button “B” below the display. If the problem is still present, the alarm will sound
again after a short delay.
Table 3 contains descriptions of critical alarm codes. Critical alarms require immediate operator attention and
corrective action. (Table 5 contains descriptions of non-critical alarm messages.)
Table 3. Critical Alarm Messages
Alarm Message What It Means What to Do
Low Battery
(A) The UPS has shut down after running on battery and discharging the batteries. Wait for AC input power to be restored. When input AC returns, the UPS begins recharging batteries and applies
power to the load.
High Battery
(C) The battery voltage is too high because of a charger problem, battery problem, or incorrect
parameter setting.
Phone Best Power Worldwide Service or your nearest
Best Power office.
Low AC Out
(E) The UPS has shut down because the output AC voltage is too low to provide power to the load. Phone Best Power Worldwide Service or your nearest Best Power office.
High AC In
(S)
High AC Out
(F)
The AC input voltage is too high; any further
increase to the voltage may damage the UPS.
The UPS has shut down because the output AC
voltage is too high.
This alarm automatically clears when input voltage returns
to normal limits. The UPS will continue to support the
protected loads until the batteries are depleted.
Phone Best Power Worldwide Service or your nearest
Best Power office.
Call Service
(5)
Call Service
(T)
E P O
(P)
High Heatsink
Temperature
(H)
Overload
Shutdown (I)
Output Overload
(G)
The UPS has detected a module fan problem that
requires service.
The UPS has detected a problem that requires
service.
The Emergency Power Off (EPO) function has
been activiated.
The inverter temperature is too high. If the
temperature reaches a preset limit, the unit will
shut down.
The UPS has shut down due to excessive load.
The load is requiring more power than the UPS
power modules are capable of supplying, and the
UPS has switched to Bypass mode.
Phone Best Power Worldwide Service or your nearest
Best Power office.
Phone Best Power Worldwide Service or your nearest
Best Power office.
Deactivate the external EPO switch and press the ON
button below the display to restart the UPS.
If the UPS has not shut down, bypass the UPS or shut
down your equipment, and turn the UPS off. Phone Best
Power Worldwide Service or your nearest Best Power
office.
Remove excess load(s) from the UPS output and press
the operator ON button to restart the unit.
Switch off loads one at a time until the alarm stops.

18
Alarm Message What It Means What to Do
Low Redundancy
(U)
Check Battery
(M)
Low Runtime
(D)
Check Memory
(O)
Near Low Battery
(B)
The number of active power modules is too low
to provide the programmed redundancy level to
protect the current load.
The batteries have failed an automatic system
test.
Batteries in the unit are nearly discharged.
The configuration as stored in the system
memory may have been corrupted.
The battery voltage has reached the Near Low
Battery setpoint.
The unit is able to protect the loads, but will not be fault
tolerant. To regain the desired redundancy, either add
power modules or reduce the load.
Phone Best Power Worldwide Service or your nearest Best
Power office.
Perform an orderly shutdown of all loads and wait for AC
input power to return. When input AC returns, the UPS
begins recharging batteries and automatically restarts.
Look in the alarm log for the slot number of the failed
module. Phone Best Power Worldwide Service or your
nearest Best Power office.
If the voltage increases, the alarm clears automatically. If it
drops further, it will cause a Low Battery alarm.
S High AC Input
acvin 300 V
minacvin 9999 V
maxacvin 0 V
Table 4. Non-critical Alarm Messages
The drawing above shows a typical alarm display. Critical alarms are annunciated by a constant Alarm LED and
a constant beep. Non-critical alarms are annunciated by a blinking Alarm LED and an intermittent beep. During
alarm display, button (A) silences the audible alarm, button (B) clears the alarm display, and button (C) performs
the normal Escape function to exit from the alarm display. The Enter button enables you to scroll through all
alarms, and the up- and down-arrow buttons scroll through any other parameters related to the displayed alarm.
Table 4 contains descriptions of non-critical alarm messages. Non-critical alarms are not as urgent as critical
alarms, but should be attended to as soon as convenient to avoid the problem becoming critical.
(A)
(Silence) (Clear) (ESC)
(B) (C)
Figure 8. Typical Active Alarm Display

19
Alarm Code and
Reason Code What it means What to do
M Check Battery
Open Cell A battery (pair of modules) has failed an open cell test. Look in the alarm log for the slot number of the failed modules. Make sure that both
battery modules are properly installed. If
properly installed, replace both battery
modules.
M Check Battery
Weak Battery The system batteries have degraded to the point where system runtime is less than
the designed rating.
Replace all battery modules.
T Call Service
Phase Error The UPS has detected the input phase rotation to be incompatible with its output
wiring and will not start up.
Correct the input wiring problem and
restart the UPS.
T Call Service
Module Failure A power module has detected an internal fault and has shut down. Look in the alarm log for the slot number of the power module and replace the
defective module.
T Call Service
Excessive Transfers The UPS has detected an excessively high number of automatic transfers from High
Efficiency mode, and has switched to
Double Conversion (Auto) mode.
Phone Best Power Worldwide Service or
your nearest Best Power office.
T Call Service
Precharge Failure A power module has detected an initialization sequence problem and will
not start up.
Look in the alarm log for the slot number
of the affected module. Phone Best Power
Worldwide Service or your nearest Best
Power office.
U Low Redundancy
Insufficient Batteries The UPS load exceeds 2800 watts per battery string. The system will protect the
load during short power outages, but
battery degradation or damage may result.
Reduce the load or install additional
battery modules (two modules per string).
U Low Redundancy
Insufficient Modules The number of active power modules is too few to provide the programmed
redundancy level while protecting the
load. The UPS will protect the load, but
will not be fault tolerant.
Reduce the load or install additional
power modules.
501 Alarm Reason Codes
Some alarms have a reason code as well as the alarm code. These reason codes help interpret and isolate the
cause of an alarm. Table 5 contains a listing of all reason codes along with the associated alarm codes. It also
gives an interpretation of the reason, and a suggested corrective action.
Table 5. Alarm Reason Codes

20
600 Communication
601 Communication Options
Best Power offers several methods of communicating with your Axxium Pro system in addition to the operator control
panel:
CheckUPS®II Each Axxium Pro UPS ships with CheckUPS II power monitoring and unattended-shutdown
Software: software and an interface cable. To begin installing CheckUPS software, see the instructions
accompanying the CheckUPS software CD-ROM.
CheckUPS software uses an RS-232 serial link to communicate with the UPS, and (using Windows)
it provides you with up-to-date graphics of UPS power and system data and power flow. It also gives
you a complete record of critical power events, and it notifies you of important UPS or power infor-
mation. If there is a power outage and the Axxium Pro system battery power becomes low,
CheckUPS software can automatically shut down your computer system to protect your data before
the UPS Low Battery shutdown occurs. NOTE: For the latest software revision, download it from
www.bestpower.com.
RS232 You can connect the Axxium Pro system to a computer running special terminal emulation
Communication: software available from Best Power. The Axxium Pro system communicates with your
computer using an advanced binary protocol. For more information, contact your nearest Best
Power office.
Optional For computer systems that already have UPS monitoring software, Best Power offers interface
Interface cable kits for connecting the Axxium Pro system to your computer system. The kit includes the
Kits: cable, adapters, and instructions.
Relay Card: This interface provides true relay contact outputs to peripheral devices. Outputs are user-selectable
as normally open (N.O.) or normally closed (N.C.).
BestLink™ This interface provides remote monitoring and control of the UPS through a customer-supplied
Telecom Modem modem. This unit also, in the event of an alarm condition, provides automatic notification via
Controller: phone, pager, e-mail, or fax.
Optional Internal This adapter provides the Axxium Pro system with its own ethernet network connection, allowing
BestLink™ it to be remotely monitored and controlled via industry-standard internet browsers. The HTML
SNMP/WEB interface enables UPS monitoring and management from anywhere on the internet or within your
Adapter: intranet. In addition, third-party Simple Network Management Protocol (SNMP) software packages
may also be used to communicate remotely with the Axxium Pro system. The BestLink
SNMP/WEB Adapter also allows UPS-dependent computer systems to be automatically shut down
during extended power outages. BestLink-compatible software providing this function is available
on the CheckUPS software CD as well as on the Best Power web site.
BestDock™ The Axxium Pro UPS has two communication slots that allow quick installation of the optional
Communication BestLink SNMP/WEB adapter or other similar communication interfaces. These interface adapters
Slots: extend the capabilities of the Axxium Pro system to provide compatibility with network and remote
monitoring/management systems.
Dedicated Input Emergency Power Off (EPO): Connection to a facility Emergency Shutdown switch provides
Signals: a method for emergency Axxium Pro system shutdown. Opening this connection creates an
immediate shutdown of the Axxium Pro UPS output.
Bypass: The signal from an external bypass switch, to isolate the Axxium Pro system for
maintenance purposes, tells the UPS to go into Internal Bypass mode.
On-Generator: An external signal that the input power is being supplied by a generator tells the
UPS to accept wider input power frequency limits and limit battery charging.
See Section 1304 to make the connection for all dedicated input signals.