Alpha Novus FXM 650 User manual

Your Power Solutions Partner
Alpha FXM 650, 1100, 2000 UPS
Installation & Operation Manual
Part # 017-230-B4
Effective: 07/2013
member of The Group™

Alpha FXM 650, 1100, 2000 UPS
Installation and Operation Manual
For technical support, contact Alpha Technologies:
Canada and USA: 1-888-462-7487
International: [phone]
Copyright
Copyright © 2013 Alpha Technologies Ltd. All rights reserved. Alpha is a registered trademark of Alpha Technolo-
gies.
No part of this documentation shall be reproduced, stored in a retrieval system, translated, transcribed, or trans-
mitted in any form or by any means manual, electric, electronic, electromechanical, chemical, optical, or other-
wise without prior explicit written permission from Alpha Technologies.
This document, the software it describes, and the information and know-how they contain constitute the propri-
etary, confidential and valuable trade secret information of Alpha Technologies, and may not be used for any
unauthorized purpose, or disclosed to others without the prior written permission of Alpha Technologies.
The material contained in this document is for information only and is subject to change without notice. While
reasonable efforts have been made in the preparation of this document to assure its accuracy, Alpha Technolo-
gies assumes no liability resulting from errors or omissions in this document, or from the use of the information
contained herein. Alpha Technologies reserves the right to make changes in the product design without reserva-
tion and without notification to its users.
Alpha shall not be held liable for any damage or injury involving its enclosures, power
supplies, generators, batteries, or other hardware if used or operated in any manner or
subject to any condition inconsistent with its intended purpose, or if installed or oper-
ated in an unapproved manner, or improperly maintained.
Photographs contained in this manual are for illustrative purposes only. These photo-
graphs may not match your installation.
NOTE:
Operator is cautioned to review the drawings and illustrations contained in this manual
before proceeding. If there are questions regarding the safe operation of this powering
system, contact Alpha Technologies or your nearest Alpha representative.
NOTE:
NOTE:

017-230-B4 Rev B
2
Table of Contents
1. Safety....................................................................................................................................4
1.1 Safety Symbols .................................................................................................................... 4
1.2 General Warnings and Cautions .......................................................................................... 5
1.3 Certications and Compliances............................................................................................ 6
2. General Description ..............................................................................................................7
2.1 Overview .............................................................................................................................. 7
2.2 Front Panel........................................................................................................................... 7
3. Site Planning.......................................................................................................................11
3.1 Safety Precautions..............................................................................................................11
3.2 Communicating with the Alpha FXM .................................................................................. 12
3.3 Electromagnetic Compatibility (EMC) Requirements......................................................... 13
4. Unpacking Alpha FXM ........................................................................................................14
5. Installation...........................................................................................................................15
5.1 Tools and Equipment Required for Installation................................................................... 15
5.2 Mounting the Alpha FXM.................................................................................................... 16
5.3 Wiring the External Batteries.............................................................................................. 17
5.4 UATS and (UGTS) Option.................................................................................................. 19
6. Operating the Alpha FXM....................................................................................................20
6.1 Switching the Alpha FXM On and Off................................................................................. 20
6.2 Operating from the Control Panel Interface ....................................................................... 21
6.3 Operating via the FXM Communication Module (Intranet or Internet) ............................... 30
6.4 The Alpha UPS Monitor Interface....................................................................................... 56
6.5 HyperTerminal Interface ..................................................................................................... 60
7. Maintenance .......................................................................................................................72
7.1 Upgrading the FXM Firmware............................................................................................ 72
7.2 Testing and Replacing the Batteries................................................................................... 74
7.3 Preventative Maintenance.................................................................................................. 77
8. Troubleshooting ..................................................................................................................78
8.1 Procedure........................................................................................................................... 78

3
017-230-B4 Rev B
9. Specications......................................................................................................................80
10. Warranty ...........................................................................................................................83
11. Emergency Shutdown Procedure .....................................................................................84
Appendix A - Peukert Number and Battery Capacity................................................................ 85
A.1 Introduction....................................................................................................................... 85
A.2 Determining the Peukert’s Number and Peukert’s Capacity............................................. 85
A.3 Determining Peukert’s Capacity for Series Parallel Combinations................................... 85
A.4 Example............................................................................................................................ 86
A.5 Using the Spreadsheet ......................................................................................................87
Appendix B - Types of Triggers ................................................................................................88
B.1 Edge trigger ...................................................................................................................... 88
B.2 Level Toggle...................................................................................................................... 88

017-230-B4 Rev B
4
1. Safety
SAVE THESE INSTRUCTIONS: This manual contains important safety instructions that
must be followed during the installation, servicing, and maintenance of the product. Keep it in a safe place. Re-
view the drawings and illustrations contained in this manual before proceeding. If there are any questions regard-
ing the safe installation or operation of this product, contact Alpha Technologies or the nearest Alpha representa-
tive. Save this document for future reference.
1.1 Safety Symbols
To reduce the risk of injury or death, and to ensure the continued safe operation of this product, the following
symbols have been placed throughout this manual. Where these symbols appear, use extra care and attention.
The use of ATTENTION indicates specic regulatory/code requirements that may affect the
placement of equipment and /or installation procedures.
WARNING!
WARNING presents safety information to PREVENT INJURY OR DEATH to personnel.
Warnings are indicated by a shock hazard icon, the word WARNING, and a rule beneath
which the information appears.
CAUTION!
CAUTION indicates safety information intended to PREVENT DAMAGE to material or
equipment. Cautions are designated with a yellow warning triangle, the word CAUTION,
and a rule beneath which the information appears.
NOTE:
A NOTE provides additional information to help complete a specic task or procedure.
Notes are designated with a checkmark, the word NOTE, and a rule beneath which the
information appears.
HOT!
The use of HOT presents safety information to PREVENT BURNS to the technician or
user.

5
017-230-B4 Rev B
1.2 General Warnings and Cautions
You must read and understand the following warnings before installing the Alpha FXM and its components. Fail-
ure to do so could result in personal injury or death.
• Read and follow all instructions included in this manual.
• Do not work alone under hazardous conditions.
• Only qualified personnel are allowed to install, operate and service this system and its components.
• Use proper lifting techniques whenever handling equipment, parts, or batteries.
• Always assume electrical connections or conductors are live. Switch off all circuit breakers and double-
check connections with a voltmeter before performing installation or maintenance.
• Place warning label(s) on the utility panel to tell emergency personnel a UPS is installed.
• The Alpha FXM uses more than one live circuit. AC power may be present at the outputs even if the system
is disconnected from line or battery power.
• The Alpha FXM surface can be very hot to the touch.
• Battery installation and servicing should be done or supervised by personnel knowledgeable about batteries
and their safety procedures.
• If electrolyte splashes on your skin, immediately wash the affected area with water. If electrolyte gets into
your eyes, wash them for at least 10 minutes with clean running water or a special neutralizing eye wash
solution. Seek medical attention at once.
• Neutralize spilled electrolyte with special neutralizing solutions in a “spill kit” or a solution of 1 lb. (0.45 kg) of
baking soda (bicarbonate of soda) in 1 gallon (3.8 L) of water.
• Be extra cautious when connecting or adjusting battery cabling. An improperly connected battery cable or
an unconnected battery cable can result in arcing, fire, or explosion.
• Use new batteries when installing a new unit. Verify that all batteries are the same type with identical date
codes.
• Always replace batteries with ones of identical number, type and rating. Never install old or untested batter-
ies. One sealed lead-acid battery is rated to a maximum voltage of 12 Vdc.
• A battery that shows signs of cracking, leaking or swelling must be replaced immediately by authorized per-
sonnel using a battery of identical type and rating.
• Keep the chassis area clear and dust-free during and after installation.
• Keep tools away from walk areas where you or others could fall over them.
• Wear safety glasses when working under any conditions that might be hazardous to your eyes.
• Do not work on the unit or connect or disconnect cables during periods of lightning activity.
• Do not smoke or introduce sparks in the vicinity of a battery.
• Never open or damage the batteries. Released electrolyte is harmful to the skin and eyes. It may be toxic
and hazardous to the environment.
• A battery can present a risk of electrical shock and high short-circuit current. The following precautions
should be observed when working on batteries:
a. Remove watches, rings, or other metal objects.
b. Use tools with insulated handles.
c. Wear rubber gloves and boots.
d. Do not lay tools or metal parts on top of batteries.
e. Disconnect the charging source before connecting or disconnecting battery terminals.
f. Determine if the battery is inadvertently grounded. If inadvertently grounded, remove the source from the
ground. Contact with any part of a grounded battery can result in electrical shock. The likelihood of such
shock can be reduced if the grounds are removed during installation and maintenance (applicable to
equipment and remote battery supplies not having a grounded supply circuit).

017-230-B4 Rev B
6
• Never let live battery wires touch the Alpha FXM, the enclosure or any other metal objects. This can cause a
fire or explosion.
• Never dispose of batteries in a fire. The batteries may explode. Follow the manufacturer’s directions and
check with your local jurisdictions for safe battery disposal.
• Before attaching the batteries to the Alpha FXM, make sure that the polarity is correct.
• If the batteries have been in storage for more than 3 months, recharge them for at least 24 hours and then
test them with a load before installation.
• Each AlphaCell™ battery has a date code, found on the warning label, which must be recorded in the main-
tenance log. If non-Alpha batteries are used, see the manufacturer’s documentation for date code type and
placement.
1.3 Certifications and Compliances
The Alpha FXM has been designed, manufactured, and tested to the requirements of the following national and
international safety standards:
• CAN/CSA-C22.2 No. 107.3-05 – Uninterruptible Power Systems; additional requirements (RD): CAN/CSA-
C22.2 No. 60950-1-03 - Information Technology Equipment - Safety.
• UL 1778 (Edition 4) – Uninterruptible Power Systems; additional requirements (RD): UL 60950-1 (Edition 1) -
Information Technology Equipment - Safety.
• FCC CFR47 Part 15 Class A – This equipment has been tested and found to comply with the limits for a
Class A digital device pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in ac-
cordance with the instruction manual, may cause harmful interference to radio communications. Operation
of this equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his own expense.
• Industry Canada - This Class A digital device apparatus complies with Canadian ICES-003.
• Industry Canada - Cet appareil numrique de la Classe A est conforme la norme NMB-003 du Canada.

7
017-230-B4 Rev B
2. General Description
2.1 Overview
The Alpha FXM is available in 3 models – FXM 650, FXM 1100 and FXM 2000. The FXM 650 and the FXM
1100/2000 look different, but all of the front panel connectors and circuit breakers operate in the same way. How-
ever the circuit breakers for each unit have different ratings. See Chapter "9. Specifications" for details. All units
operate in the same way unless stated otherwise in this manual.
• FXM 650-24Vdc – with a 24 Vdc battery string voltage.
• FXM 650-48Vdc – with a 48 Vdc battery string voltage.
• FXM 1100-48Vdc – with a 48 Vdc battery string voltage.
• FXM 2000-48Vdc – with a 48 Vdc battery string voltage.
2.2 Front Panel
Figure 1 shows the front panel connectors and circuit breakers, which are described in detail in the following
sections.
1
23
45
6
7
812
13 149 11
10
Figure 1 — FXM 650 (top) and FXM 1100/2000 front panel description
1
9
25
7
6
11
3
4
10
8C6 13
14 12

017-230-B4 Rev B
8
Figure 2 — Contact Layout (Standard for C1 to C5, Factory Option for C6)
Battery breaker
This circuit breaker provides over-current protection and is used as an on/off switch for the battery power. It must
be switched on for proper Alpha FXM operation.
2Battery connector
The battery connector connects the external batteries to the Alpha FXM.
3Replaceable fan assembly
This microprocessor-controlled fan turns on at a programmable temperature to lower the Alpha FXM internal tem-
perature. It must not be blocked. An Alarm is generated if the fan fails; a failed fan can be replaced in the field.
4RJ45 communication module connector
The RJ-45 connector is the Alpha FXM Ethernet connector.
5LCD control panel and menu navigation buttons
The LCD control panel together with the cancel, scroll and select buttons are used to monitor and control the
Alpha FXM.
6Battery voltage test points
These test points accept 2 mm diameter test probe tips. The battery circuit breaker must be on to measure the
voltage.
The battery voltage test points are not to be used as a power outlet.
7RS-232
This DE-9 connector allows a straight-through DE-9 to DE-9 connector cable to be used to connect the
Alpha FXM to a computer for remote control and monitoring.
8Battery temperature sensor connector
The battery charging voltage is temperature dependant when compensation is not set to 0 mV/°C/cell. A battery
temperature sensor connects to the Alpha FXM so the Alpha FXM microprocessor can adjust the charging volt-
age for optimum charging. Refer to "UPS Maintenance > Battery" on page 38.
The sensor MUST be attached to the Alpha FXM for normal operation. If the sensor is not attached, a “Tempera-
ture Probe Unplugged” alarm appears on the LCD.
9Contacts C1 to C6
Contacts C1 to C5 allow the Alpha FXM to be connected to an external monitoring panel or to traffic control
equipment.
The factory default settings can be reprogrammed to meet your requirements. Each contact can only be pro-
grammed for one function at a time and cannot show multiple conditions. See "UPS Maintenance > Relay & Load
Shed" on page 41 and section 6.5.7 on page 66 for the HyperTerminal interface.
For Contact C6, the default factory configuration is +48 Vdc output (FXM 650-24 is +24 Vdc), but it can be fac-
tory configured as a dry contact. Figure 2 shows the contact’s layout while Figure 3 shows the +48 Vdc or +24
Vdc terminal block layout.
The contacts have
a maximum rating
of 1A at 250V.
Microprocessor
UPS
Interior
Normally
Closed (NC)
Normally
Open (NO)
Common(C)
1

9
017-230-B4 Rev B
C1: The C1 contact is energized when line power is unqualified and the Alpha FXM provides backup battery
power to the load(s). It can be used to generate an “On Battery” contact.
C2, C3: These contacts are energized when the battery drops below a pre-set voltage level. They can be used to
generate a Low Battery alarm. To change the pre-programmed level to match the batteries used and the actual
operating conditions, see Low Battery Warning in "UPS Maintenance > Battery" on page 38.
C4: This contact is energized after the Alpha FXM has been in Inverter mode for 2 hours.
To change the pre-programmed 2 hours to match your operating conditions, see Load Shed Timer Configura-
tion in "UPS Maintenance > Relay & Load Shed" on page 41.
C5: The C5 contact is energized when any alarm is generated—see "Table P — Alarm Submenu" on page 78.
C6: The factory default layout for the C6 contact is a relay that is energized when the Alpha FXM is in Line or
Inverter modes and is de-energized when in Standby mode. It provides 48 Vdc (500 mA) from the external bat-
teries to an external fan or other equipment. C6 can be factory-configured as a dry contact.
Figure 3 — 48 Vdc Contact Layout (De-energized Shown, Factory Default for C6)
Figure 4 — User Input Layout
Optically isolated user inputs C7 and contacts C8
The optically isolated user inputs are used to attach an external switch panel for remote control of the Alpha FXM
or to allow the Alpha FXM to control optional Alpha Off-Line Automatic Transfer Switch (ATS).
User Input (C7): This relay has three contacts that are used to control the Alpha FXM:
19 (S1): Shorting this contact starts the Alpha FXM self test. See "UPS Maintenance > Battery" on page 38.
20 (S2): Shorting this contact activates an alarm. See "UPS Maintenance > User Input" on page 46.
21 (S3): Shorting this contact disables the AC output. There is no AC output power, but the Alpha FXM is still
energized. A manual restart is required to put the Alpha FXM back to normal operation.
22 (C): Isolated return for contacts S1, S2 and S3.
10
19
S1:Self Test
20
S2:Alarm
21
S3:Shutdown
22
Common
+48Vdc, 500mA
(FXM 1100/2000, 650-
48) or +24Vdc (FXM
650-24) from the
external batteries.
Microprocessor
18
16 17
Contact
C6

017-230-B4 Rev B
10
ATS (C8): When the Alpha FXM is in the Inverter mode, this normally open relay closes sending 48 Vdc (FXM
650-48, 1100, 2000) or 24 Vdc (FXM 650-24) from the external batteries to this dry contact (Figure 5). If the op-
tional Alpha Off-Line Automatic Transfer Switch (ATS) is connected, it will cause the ATS to switch the load from
line power to the Alpha FXM battery backup power.
48Vdc from the
external batteries
Contact C8
Microprocessor
23 24
+
11 Status and Alarm LEDs
Status:
Green LED solidly illuminated: the Alpha FXM is in Line mode and line power is provided to the load.
Green LED flashing: the unit is in Inverter mode and backup battery power is provided to the load.
Alarm:
Red LED solidly illuminated: fault in the Alpha FXM. (See "Table Q — Fault Submenu" on page 79.)
Red LED flashing indicates an alarm. (See "Table P — Alarm Submenu" on page 78.)
12 AC Input Circuit Breaker
This circuit breaker is an on/off switch for the line power into the Alpha FXM that also provides input protection. It
must be switched on for proper Alpha FXM operation.
13 Input Terminal Block
This terminal block is the Alpha FXM AC line power input.
14 Output Terminal Block
This terminal block is the Alpha FXM AC power output.
Figure 5 — ATS Layout

11
017-230-B4 Rev B
3. Site Planning
WARNING!
Restricted Access: The Alpha FXM must be installed in a restricted area accessible only
by qualied service personnel.
The Alpha FXM is intended for permanent AC connection only. The only exception is the
FXM650(U) model.
The Alpha FXM must be correctly grounded for proper operation. Older facilities may
have inadequate electrical grounding. Inspection must be performed by a qualied elec-
trician before installation to ensure that grounding meets the local electrical code.
The utility line attached to the Alpha FXM input MUST be protected by a circuit breaker
certied for this use in accordance with the local electrical code. The UPS must be con-
nected only to a dedicated branch circuit.
The UPS equipment that is powered by this service panel requires the neutral to be per-
manently bonded to the ground. Always disconnect the batteries before servicing the
circuit breaker panel.
The input and output lines to and from the Alpha FXM MUST have disconnect devices
attached.
The Alpha FXM is suitable for installations in Network Telecommunication Facilities and locations where the
National Electrical Code applies.
Grounding: The Alpha FXM is suitable both for installation as part of a common bonding network and an iso-
lated bonding network.
For installations above 1400 m (4500 ft) elevation, additional cooling may be needed to reduce the operating
temperature of the Alpha FXM. The maximum allowable operating temperature must be reduced by 2°C (3.5
°F) for every 300 m (1000 ft) above 1400 m (4500 ft).
3.1 Safety Precautions
• Install the Alpha FXM on a surface that can support its weight. See Chapter "9. Specifications".
• The input wiring must reach a suitably grounded power outlet and the load wiring must reach the
Alpha FXM output terminal blocks.
• Place the Alpha FXM in a properly sheltered location or inside a weather-proof enclosure to protect the
electronics from water, dust and other possible contamination.
• Alpha Technologies offers a wide range of outdoor enclosure systems. Visit our website at www.alpha.ca,
or call customer service for more information.
• Backup Generator (If used)
Use Generator mode so that noise tolerance is increased to accept the fluctuations created by a genera-
tor. See Sense Type in Table B on page 24 .
Use a generator with electronic speed and voltage controls which produces less than 10% voltage to-
tal harmonic distortion (THD). Mechanical governors can force the Alpha FXM to run continuously in the
Inverter mode.
Before installation, make sure the generator’s output voltage is compatible with the Alpha FXM input volt-
age requirements. To make sure the system runs smoothly, use a generator that supplies twice as much
power as drawn by the total load.

017-230-B4 Rev B
12
3.2 Communicating with the Alpha FXM
There are several ways you can communicate with the Alpha FXM UPS:
1. Using the control panel.
2. Using an RS-232 interface, you can access the UPS command line system with Windows HyperTerminal or
other terminal emulation program.
3. Using an RS-232 serial connection via the Alpha UPS Monitor installed on your computer. The
Alpha UPS Monitor software can be downloaded from www.alpha.ca/downloads/.
4. Using the optional factory-installed FXM communication module, you can communicate with the Alpha FXM
over a company intranet or the internet using a web browser or with SNMP communications.
Figure 6 — Alpha FXM Communication Options
Option 4
Option 4
Option 4 Options
2 & 3
On-Site
Ethernet Connection
FXM
Communication
Module
Ethernet Port
Note: FXM Communication Module
is a factory-installed option
CANCEL SCROLL SELECT
Alpha
FXM 2000
120/60/N
LINE
Option 1:
Control Panel
RS-232 Port
(Using HyperTerminal or Alpha UPS Monitor
available at www.alpha.ca)
(Using Web browser for
Ethernet connection
to on-site computer)

13
017-230-B4 Rev B
3.3 Electromagnetic Compatibility (EMC) Requirements
Observe the following EMC requirements when setting up the Alpha FXM and its internal equipment:
• All AC mains and external supply conductors must be enclosed in a metal conduit or raceway when speci-
fied by local, national, and/or other applicable government codes and regulations.
• The customer facilities must provide suitable surge protection.

017-230-B4 Rev B
14
4. Unpacking Alpha FXM
WARNING!
The Alpha FXM is heavy, up to 16 kg (35 lb). Use proper lifting techniques. The lifting
and moving should be done by at least two people to avoid injury.
Follow these guidelines for unpacking the Alpha FXM.
1. Select a suitable area for unpacking.
2. Store all the packing material and boxes for possible equipment returns.
3. Compare the packing slip and the list of parts with the items you received: make sure the standard items as
well as purchased options are included:
Standard items
1 Alpha FXM
1 Alpha FXM operator manual
8Terminal blocks and labels for the dry contacts
1 Temperature sensor cable
Purchased options
• Batteries, if ordered from Alpha, will be shipped separately.
• Enclosure (with optional mounting hardware kit)
• Battery heating mats
• Network Interface card
• In-line fuse
4. If the list of parts on your packing slip does not match the items you received, or any items appear damaged,
immediately notify your carrier agent and the supplier who prepared your shipment.

15
017-230-B4 Rev B
5. Installation
WARNING!
The Alpha FXM module MUST be correctly grounded for proper operation.
The input and output lines to and from the Alpha FXM MUST have disconnect devices
attached.
The Alpha FXM must be installed in a restricted area accessible only by qualied ser-
vice personnel.
Once the installation location has been planned and prepared, you are ready to install the Alpha FXM. There are
three steps to setting up the Alpha FXM:
1. Mounting the Alpha FXM
2. Wiring the external batteries
3. Wiring the Alpha FXM
5.1 Tools and Equipment Required for Installation
• DC voltmeter.
• Labels or masking tape and marker.
• Torque wrench for input/output terminal blocks.
• Slot head screwdriver to fit the terminal blocks.
• Minimum #10 AWG copper wire for input/output terminal blocks.
• High strength, flame-proof tape such as duct tape.
• Battery terminal corrosion inhibitor such as NOCO Company NCP-2 or Sanchem Inc. No-Ox ID Grease “A”.

017-230-B4 Rev B
16
5.2 Mounting the Alpha FXM
The Alpha FXM can be placed on a shelf with no other parts needed. Any version of the FXM can be rack or wall
mounted or secured to a shelf, such as on an outdoor enclosure shelf, with the optional mounting brackets as
shown in the figure below The brackets and the screws to attach them to the Alpha FXM case are available from
Alpha Technologies (part number 740-697-21).
CAUTION!
Terminal block covers and the battery harness restraining bracket MUST be used and
are available from Alpha Technologies (part number 740-698-21). If the Alpha FXM end
application is mounted inside an enclosure or in an area restricted to authorized per-
sonnel, then the covers and bracket may or may not be needed.
To meet NEBS Level 1 specifications when you are installing this unit in a rack or frame, do the following:
1. Before installation, clean all attachment points on the Alpha FXM, rack and mounting brackets and bring
them to a bright finish. Then coat them with an anti-oxidant such as Sanchem Inc. No-Ox ID “A-Special
Electrical Grade” or equivalent.
2. Attach the mounting brackets with the thread forming screws and the paint piercing washers provided with
the brackets to insure adequate grounding between the Alpha FXM chassis and the rack.
Figure 7 — Mounting the Alpha FXM Mounting brackets position for rack mounting. Rotate to fit either 19"or 23"racks.
For the FXM 1100/2000 units only, the control panel and the power connection panel can be rotated to suit
your needs. To rotate either one, unscrew the screws in each corner, remove the panel, rotate it and reinstall the
screws.
CAUTION!
Use care to avoid damaging or pulling out the wires or the ribbon cables when rotating
the panels.

17
017-230-B4 Rev B
5.3 Wiring the External Batteries
WARNING!
The batteries must be installed by qualied personnel trained in the safe use of high-
energy power supplies and their batteries. Refer to the safety section in this manual.
• Use new batteries when installing a new unit. Verify that all batteries are the same type with identical date
codes.
• For the FXM 650-24, the battery string is 24 Vdc. For the FXM 650-48/1100/2000, the battery string is 48 Vdc.
• If you are making your own battery wiring harness, use at least 10 AWG (for FXM 650/1100) or 8 AWG (FXM
2000) wires.
• The battery return connection is to be treated as an Isolated DC return (DC-I) as defined in GR-1089-CORE.
5.3.1 Procedure
NOTE: The optional in-line fuse option shown in Figure 8 on page 18, is available as part number SPB98-645-
1, Kit, FuseUpgrade, 100A.
1. For FXM 650-48/1100/2000 (48 V battery string), number the batteries from 1 to 4 with labels or tape. For
FXM 650-24 (24 V battery string), number the batteries from 1 to 2 with labels or tape.
2. Coat the battery terminals with the corrosion inhibitor.
3. Connect the batteries as shown in Figure 8 on page 18. If used, install the in-line fuse as shown.
4. Connect the black battery cable to the negative terminal of the battery string, and the red battery cable to the
positive terminal of the battery string.
5. When the batteries are wired, measure the voltage at the battery connection terminals. It should read
between 42 and 54V for the FXM 650-48/1100/2000 or 21 and 27V for the FXM 650-24.
6. Note the polarity and ensure it is correct.
7. Ensure that the DC breaker if OFF.
8. Connect the external batteries to the Battery connector—location 2in Figure 1.
9. Route the sensor end of the battery temperature cable to the batteries.
10. Attach the battery temperature sensor to the body of the battery, about 2 to 3" (5 to 7.5 cm) from the base of
the battery.
11. If multiple battery strings are used, repeat steps 1 to 4 as required.

017-230-B4 Rev B
18
5.3.2 Wiring the Alpha FXM
WARNING!
Make sure the line power is off. Switch off all circuit breakers on the Alpha FXM before
making any electrical connections.
If stranded wires are used to connect the input and output terminal blocks, ferules or
equivalent crimping terminals must be used.
Figure 8 — External Battery Wiring (for 48 Vdc string (top) and 24 Vdc string)
CAUTION!
Torque the battery terminals according to the manufacturer’s specications on the
battery name plate or data sheet.
Battery #4 Battery #3 Battery #2 Battery #1
To positive terminal To negative terminal
Optional in-line fuse
Battery #2 Battery #1
To positive terminal To negative terminal
Optional in-line fuse