Photographs contained in this manual are for illustrative purposes only. These photographs 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, please contact Alpha Technologies or your
nearest Alpha representative.
NOTE:
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 not consistent with its
intended purpose or is installed or operated in an unapproved manner or improperly maintained.
Notice of FCC Compliance
Per FCC 47 CFR 15.21:
Changes or modications not expressly approved by the party responsible for compliance could void the user’s authority to
operate the equipment.
Per FCC 47 CFR 15.105:
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 accordance 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 their own expense.
Contacting Alpha Technologies: www.alpha.com
or
For general product information and customer service (7 AM to 5 PM, Pacic Time), call
1-800-863-3930
For complete technical support, call
1-800-863-3364
7 AM to 5 PM, Pacic Time or 24/7 emergency support
Utility Power Connection Notes ...........................................................................................................................................................11
Grounding and Earth Connection Notes............................................................................................................................................. 14
Safety Ground and Earth Connection ......................................................................................................................................... 14
Power Output Return................................................................................................................................................................... 14
1.2 Theory of Operation ............................................................................................................................................................. 17
1.2.1 AC (Line) Operation .................................................................................................................................................. 17
1.2.3 Charger Modes of Operation ..................................................................................................................................... 18
1.2.4 Output Voltage Modes of Operation .......................................................................................................................... 22
1.3.4.1 Theory of Operation .............................................................................................................................................. 28
2.2.1 Parts and Connections .............................................................................................................................................. 39
2.2.2 Battery Installation Options and Wiring Diagram....................................................................................................... 40
2.2.7 Communications DOCSIS Status Monitoring ............................................................................................................ 46
2.2.7.1 DOCSIS Status Monitor Front Panel Connections ............................................................................................... 46
2.2.7.2 LED Status Verication ......................................................................................................................................... 47
2.2.8 Power Module Conguration and Installation Procedure .......................................................................................... 48
4
017-882-B0-001 Rev. C2 (10/2013)
Table of Contents
2.2.9 Local Verication of DOCSIS Transponder ............................................................................................................... 51
2.2.10 Web Interface ............................................................................................................................................................ 52
2.2.10.1 Local Web Server Access ................................................................................................................................... 52
2.2.11 Remote Web Server Access ..................................................................................................................................... 55
2.2.12 Navigating the Web Page .......................................................................................................................................... 56
2.2.12.1 Web Interface Security Levels ............................................................................................................................ 57
2.2.13 Verifying Communication Parameters ....................................................................................................................... 58
2.2.14 Verifying Power Supply and Battery Parameters ...................................................................................................... 59
2.2.15 Remote Self Tests via the Web Page ........................................................................................................................ 59
3.1 Start-Up and Test ................................................................................................................................................................. 60
3.1.1 Self Test Operation .................................................................................................................................................... 60
3.2 Using the Smart Display....................................................................................................................................................... 61
3.3.1 Power Information and Conguration ........................................................................................................................ 63
3.3.2 Battery Information and Conguration....................................................................................................................... 64
3.3.3 Communication Information and Conguration ......................................................................................................... 65
3.3.4 Alpha Applications Information and Conguration..................................................................................................... 68
3.5 Active Alarms ....................................................................................................................................................................... 80
3.5.1 Menu Structure/Navigation (from Active Alarms Screen) .......................................................................................... 81
3.5.4 COMM Alarms ........................................................................................................................................................... 84
3.7 Automatic Performance Test ................................................................................................................................................ 88
3.8 Providing Power via Portable Generator or Inverter ............................................................................................................ 89
3.8.1 DC Powering ............................................................................................................................................................. 89
3.8.2 AC Powering ............................................................................................................................................................. 89
3.8.3 Using a Truck-mounted Inverter or Generator........................................................................................................... 90
3.9 Resumption of Utility Power ................................................................................................................................................. 91
4.2 Required Tools and Equipment ............................................................................................................................................ 92
4.3 Power Supply System Maintenance .................................................................................................................................... 93
4.3.1 Preparing for Maintenance ........................................................................................................................................ 93
4.3.2.1 Remote Status Monitoring of Power Supply Self Test .......................................................................................... 93
4.3.2.2 On-Site Power Supply Preventive Maintenance ................................................................................................... 93
4.4.7 Battery Refurbishment Plan .................................................................................................................................... 104
4.4.8 Battery Evaluation Procedures for AlphaCell Batteries ........................................................................................... 105
4.5 XM3-HP System Preventive Maintenance Log .................................................................................................................. 106
5.0 Shut Down ................................................................................................................................................................................. 107
Safety and EMC Compliance .....................................................................................................................................................110
System Options ..........................................................................................................................................................................113
Return and Repair Information ...................................................................................................................................................113
Fig. 1-5, Front Panel, XM3-HP Power Supply .......................................................................................................................... 23
Fig. 1-6, Side Panel, XM3-HP Power Supply ........................................................................................................................... 23
Fig. 1-7, Detail View, Front Panel Connections and Indicators ................................................................................................ 24
Table of Contents
Fig. 1-8, Output Voltage Terminal Block ................................................................................................................................... 26
Fig. 1-9, AlphaDOC Standoff and Screw Locations ................................................................................................................. 26
Fig. 1-10, 5-Position Output Voltage Terminal Block ............................................................................................................... 27
Fig. 1-11, Single Battery String Wiring Diagram (w/ embedded SAG Harness depicted) ........................................................ 29
Fig. 1-13, SAG Front Panel ...................................................................................................................................................... 32
Fig. 1-15, AlphaNet Series Communication Modules............................................................................................................... 36
Fig. 2-11, Line Cord Plugs ........................................................................................................................................................ 42
Fig. 2-12, Input Voltage Setting Screen ................................................................................................................................... 42
6
017-882-B0-001 Rev. C2 (10/2013)
Figures
Fig. 2-13, Removing Inverter Module and Output Voltage Terminal Location .......................................................................... 42
Fig. 2-14, Voltage Wire Position .............................................................................................................................................. 42
Fig. 2-15, Front Panel Fastener Locations .............................................................................................................................. 43
Fig. 2-17, SAG Card Standoffs, Screws and Ribbon Cable Locations ................................................................................... 43
Fig. 2-18, SPI, AlphaDOC and SAG Harness Connections .................................................................................................... 44
Fig. 2-21, Active Alarm Screen ................................................................................................................................................. 45
Fig. 2-22, N+1 In Use Alarm Screen ........................................................................................................................................ 45
Fig. 2-23, DOCSIS Status Monitor Front Panel Connections .................................................................................................. 46
Fig. 2-24, Active Alarm Table .................................................................................................................................................... 49
Fig. 2-25, Enter Battery Date Code .......................................................................................................................................... 49
Fig. 2-26, Enter Battery MHOs Reading .................................................................................................................................. 49
Fig. 2-27, Select Language in PWR CNFG Menu.................................................................................................................... 50
Fig. 2-28, COMM Menu Options .............................................................................................................................................. 51
Fig. 2-29, DSM3 Series Web Page .......................................................................................................................................... 52
Fig. 2-30, Local Area Connection Properties Screen, Windows XP ......................................................................................... 53
Fig. 2-31, Internet Protocol (TCP/IP) Properties Screen, Windows XP ................................................................................... 53
Fig. 2-32, Local Area Connection Properties Screen, Windows 7 ........................................................................................... 54
Fig. 2-33, Internet Protocol (TCP/IP) Properties Screen, Windows 7 ...................................................................................... 54
Fig. 2-34, Web Server Home Page .......................................................................................................................................... 55
Fig. 2-35, DSM3 Series Navigation Bar Items ......................................................................................................................... 56
Fig. 2-36, Communication Parameters .................................................................................................................................... 58
Fig. 2-37, Advanced Communication Parameters.................................................................................................................... 58
Fig. 2-38, Power Supply and Battery Parameters .................................................................................................................... 59
Fig. 2-39, Location of "Start" Button for Self Test ..................................................................................................................... 59
Fig. 3-1, Operation Normal Display Screen ............................................................................................................................. 61
Fig. 3-2, Navigating Through Menu Screens ........................................................................................................................... 61
Fig. 3-3, Input Voltage Settings Screen.................................................................................................................................... 62
Fig. 3-4, Active Alarm Table ...................................................................................................................................................... 80
Fig. 3-5, Sample Active Alarm Display, PWR Menu ................................................................................................................. 81
Fig. 3-6, Sample Active Alarm Display, BATT Menu................................................................................................................. 81
Fig. 3-7, Sample Active Alarm Display, COMM Menu .............................................................................................................. 81
Fig. 4-1, XM3-HP System Components ................................................................................................................................... 94
Fig. 4-2, Capacity vs. Storage Time for AlphaCell GXL ........................................................................................................... 98
Fig. 4-3, Capacity vs. Storage Time for AlphaCell HP .............................................................................................................. 98
Fig. 4-4, Available Capacity vs. Ambient Temperature ............................................................................................................. 99
Fig. 4-5, Flow Chart for Remote Status Monitoring .................................................................................................................. 100
Fig. 4-6, Flow Chart for Preventive Maintenance ..................................................................................................................... 101
Fig. 4-7, Flow Chart for Battery Refurbishment Plan ............................................................................................................... 104
Table 1-2, Charger Modes of Operation ................................................................................................................................... 18
Table 1-3, Duration of Load ...................................................................................................................................................... 25
Table 1-4, Smart AlphaGuard LED Alarm States ..................................................................................................................... 32
Table 1-5, Comparative Features, AlphaNet Series Communications Modules ...................................................................... 36
Table 2-2, DSM3 Series Transponder Security Levels............................................................................................................. 57
Table 3-1, AC Output ................................................................................................................................................................ 60
Table 3-2, Main Menu Functions .............................................................................................................................................. 61
Table 3-3, Logged Events and Alarms ..................................................................................................................................... 72
Table 3-4, PWR Alarms: Classications, Causes and Corrections .......................................................................................... 82
Table 3-5, BATT Alarms: Classications, Causes and Corrections .......................................................................................... 83
Table 3-6, COMMs Alarms: Classications, Causes and Corrections...................................................................................... 84
Table 3-7, APP Alarms: Classications, Causes and Corrections ............................................................................................ 84
Review the drawings and illustrations contained in this manual before proceeding. If there are any questions regarding
the safe installation or operation of the system, contact Alpha Technologies or the nearest Alpha representative. Save this
document for future reference.
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.
WARNING!
WARNING presents safety information to PREVENT INJURY OR DEATH to the technician or
user.
CAUTION!
The use of CAUTION indicates safety information intended to PREVENT DAMAGE to material or
equipment.
NOTE:
A NOTE provides additional information to help complete a specic task or procedure.
ATTENTION:
The use of ATTENTION indicates specic regulatory/code requirements that may affect the placement of equipment
and/or installation procedures.
Safety Precautions
• Only qualied personnel should service the Power Supply.
• Verify the voltage requirements of the equipment to be protected (load), the AC input voltage to the Power Supply
(line) and the output voltage of the system prior to installation.
• Equip the utility service panel with a properly rated circuit breaker for use with this Power Supply.
• When connecting the load, DO NOT exceed the output rating of the Power Supply.
• Always use proper lifting techniques whenever handling units, modules or batteries.
• The Power Supply contains more than one live circuit! Even though AC voltage is not present at the input, voltage
may still be present at the output.
• The battery string, which provides backup power, contains dangerous voltages. Only qualied personnel should
inspect or replace batteries.
• In the event of a short-circuit, batteries present a risk of electrical shock and burns from high current. Observe
proper safety precautions.
• Do not allow live battery wires to contact the enclosure chassis. Shorting battery wires can result in a re or
possible explosion.
• This Power Supply has been investigated by regulatory authorities for use in various Alpha enclosures. If you
are using a non-Alpha enclosure, it is your responsibility to ensure your combination conforms to your local
regulatory requirements and the Power Supply remains within its environmental specications.
9017-882-B0-001 Rev. C2 (10/2013)
Battery Safety Notes
Any gelled or liquid emissions from a valve-regulated lead-acid (VRLA) battery contains diluted sulfuric acid, which is
harmful to the skin and eyes. Emissions are electrolytic and are electrically conductive and corrosive.
To avoid injury:
• Always wear eye protection, rubber gloves, and a protective vest when working near batteries. To avoid
battery contact, remove all metallic objects, (such as rings or watches), from your person.
• Batteries produce explosive gases. Keep all open ames and sparks away from batteries.
• Use tools with insulated handles, do not rest any tools on top of batteries.
• If any battery emission contacts the skin, wash immediately and thoroughly with water. Follow your company’s
approved chemical exposure procedures.
• Neutralize any spilled battery emission with the special solution contained in an approved spill kit or with
a solution of one pound bicarbonate of soda to one gallon of water. Report a chemical spill using your
company’s spill reporting structure and seek medical attention if necessary.
• Prior to handling the batteries, touch a grounded metal object to dissipate any static charge that may have
developed on your body.
• Use special caution when connecting or adjusting battery cabling. An improperly or unconnected battery cable
can make contact with an unintended surface that can result in arcing, re, or a possible explosion.
• A battery showing signs of cracking, leaking, or swelling should be replaced immediately by authorized
personnel using a battery of identical type and rating.
Battery Maintenance Guidelines
• During maintenance visits, inspect batteries for the following:
•Signsofbatterycracking,leakingorswelling. The battery should be replaced immediately by
authorized personnel using a battery of the identical type and rating.
•Signsofbatterycabledamage. Battery cable should be replaced immediately by authorized
personnel using replacement parts specied by vendor.
•Loosebatteryconnectionhardware. Refer to documentation for the correct torque and connection
hardware for the application.
• Always replace batteries with those of an identical type and rating. Match conductance, voltage and date codes.
• Do not attempt to remove the vents (valves) from the AlphaCell broadband battery or add water. This is a safety
hazard and voids the warranty.
• Apply NO-OX grease on all exposed connections.
• When necessary, clean up any spilled electrolyte in accordance with all federal, state, and local regulations or codes.
• Follow approved storage instructions.
• Always replace batteries with those of an identical type and rating. Never install untested batteries.
• Do not charge batteries in a sealed container. Each individual battery should have at least 1/2 inch of space between
it and all surrounding surfaces to allow for convection cooling.
• All battery compartments must have adequate ventilation to prevent an accumulation of potentially dangerous gas.
Never place batteries in a sealed enclosure. Extreme caution should be used when maintaining and collecting data on
the battery system. Ensure all enclosure vents and lters are clean and free of debris.
• Spent or damaged batteries are environmentally unsafe. Always recycle used batteries. Refer to local codes for
proper disposal of batteries.
10 017-882-B0-001 Rev. C2 (10/2013)
Utility Power Connection Notes
NOTE:
Alpha enclosures are engineered to properly vent the Power Supply. The Power Supplies have been investigated by
regulatory authorities for use in various Alpha enclosures. If you are using a non-Alpha enclosure, it is your responsibility
to ensure your combination conforms to your local regulatory requirements and the Power Supply remains within its
environmental specications.
ATTENTION:
Connecting to the utility should be performed only by qualied service personnel and in compliance with local electrical
codes. Connection to utility power must be approved by the local utility before installing the Power Supply.
Local regulatory authorities may require the use of an approved service entrance and/or service disconnect switch when
the Power Supply is installed in an outdoor enclosure. Alpha enclosures have switch options. The installer may need to
provide these if using a non-Alpha enclosure.
NOTE:
In order to accommodate the high-inrush currents normally associated with the start-up of ferroresonant
transformers (400 Amp, no-trip, rst-half cycle), either a “high-magnetic” or an HACR (Heating, Air Conditioning,
Refrigeration) trip breaker must be used. Do not replace these breakers with a conventional service entrance
breaker. Alpha recommends ONLY Square D breakers because of the increased reliability required in this powering
application. High-magnetic Square D circuit breakers and a BBX option (UL Listed service entrance) are available
BBX - External Service Disconnect020-085-10QO2 -4L70RB
BBX - External Service Disconnect020-141-10QO8-16L100RB
ATTENTION:
In most cases, the following congurations qualify for service entrance use when wiring a duplex receptacle to a service
disconnect. Other codes may also apply. Always contact your local utility to verify the wiring conforms to applicable codes.
XM3-HP Connections
Proper 120VAC 20A service requires the installation site be:
• Equipped with a 120VAC duplex receptacle which provides power to the Power Supply and peripheral
equipment.
• Have a NEMA 5-20R receptacle protected by a single-pole, 20 Amp High Magnetic (HM) circuit breaker inside
the service entrance.
• Checked to NEC/CEC Code or with your local regulatory authority to verify proper wire AWG (suggested wire
gauge is 12AWG).
• Equipped with a grounding clamp on the enclosure to facilitate dedicated grounding.
NOTE:
When it is required to bond the box to a neutral plate, use the long green bonding screw provided (Alpha P/N
523-011-10, Square D P/N 40283-371-50).
11017-882-B0-001 Rev. C2 (10/2013)
Utility Power Connection Notes, continued
LI (Black)
To Utility
Copper Ground Wire
#8 AWG (Minimum)
Grounding Point Made
to Enclosure Wall
Neutral (White)
Breaker
Neutral Bus
LI (Black)
Typical 120VAC Service Entrance Wiring
Neutral
(White)
LI
(Black)
To Enclosure
Receptacle
Ground
(Green)
Typical 120 VAC 20A Receptacle Wiring, 5-20R
(P/N 531-006-19)
LI
(Black)
L2
(Red)
Ground
(Green)
Typical 240 VAC 20A Receptacle Wiring, 6-15R
(P/N 531-004-19)
LI
(Black)
L2
(Red)
Ground
(Green)
Typical 240 VAC 20A Receptacle Wiring, 6-20R
(P/N 531-008-19)
12 017-882-B0-001 Rev. C2 (10/2013)
Utility Power Connection Notes, continued
Proper 240VAC 15A service requires the installation site be:
• Equipped with a 240VAC duplex receptacle to provide power to the Power Supply and peripheral equipment.
• Have a NEMA 6-15R receptacle that is protected by a single, 2-pole, common trip 15A circuit breaker inside
the service entrance.
• Checked to NEC/CEC Code or with your local regulatory authority to verify proper wire AWG (suggested wire
gauge is 14AWG).
• Equipped with a grounding clamp on the enclosure to facilitate dedicated grounding.
NOTE:
When it is required to bond the box to a neutral plate, use the long green bonding screw provided (Alpha P/N
523-011-10, Square D P/N 40283-371-50).
LI (Black)
L2 (Red)
Copper Ground Wire
#8 AWG (Minimum)
Breaker
Grounding Point Made
to Enclosure Wall
LI (Black)
L2 (Red)
LI (Brown)
To Utility
Neutral (White)
Neutral Bus
Typical 240VAC 60 Hz Service Entrance Wiring
To Utility
Copper Ground Wire
10mm2 or #8 AWG
(Minimum) (Yellow/Green)
Grounding Point Made
to Enclosure Wall
Copper Ground Wire
(Yellow/Green)
Neutral (Blue)
Breaker
Neutral Bus
Blue
LI (Brown)
Typical 230VAC 50Hz Service Entrance Wiring
To Enclosure
Receptacle
13017-882-B0-001 Rev. C2 (10/2013)
Grounding and Earth Connection Notes
In order to provide a ready, reliable source of backup power, it is necessary to connect the Power Supply to an effective grounding
and Earthing system. This not only provides for the safety of the service personnel responsible for its operation and maintenance, but
also facilitates the proper operation and protection of the equipment within the network. Such a grounding system provides protection
with respect to operator safety, system communication and equipment protection.
Lightning strikes, grid switching or other aberrations on the power line and/or communications cable have the potential to cause highenergy transients that can damage the powering or communications systems. The most viable method available to protect the system
from damage is to divert these unwanted high-energy transients along a low-impedance path to earth. A low-impedance path to earth
prevents these currents from reaching high voltage levels and posing a threat to equipment.
The key to the success of lightning protection is single-point grounding so the components of the grounding system appear as a
single point of uniform impedance. Two places recommended by Alpha for single-point grounding are connections in the enclosure
and connections to earth. Single-point grounding in the enclosure is achieved by bonding all electrical connections to the enclosure,
including the connection to earth, as close together on the enclosure as possible. Single-point grounding for the connection to earth
is achieved, for example by the proper bonding of the ground rods.
Safety Ground and Earth Connection
The safety ground and earth is a two-part system, comprised of the utility service and the Alpha system.
1. The utility service;
As a minimum requirement for the protection of Alpha equipment, the local utility service must provide a low-
impedance path for fault current return. In addition, there must be a low impedance bonded path between the
Power Supply ground pin and the enclosure.
2. The Alpha grounding system;
The Alpha grounding system consists of a low-impedance connection between the enclosure and an Earth
Ground (located at least 6’ away from the Utility Earth connection).
This impedance between the enclosure and Earth must be 25 Ohms or less at 60 Hertz as measured by AMPROBE
Model DGC-1000 or equivalent. The measurement should be made on the wire or ground rod after it exits the
enclosure.
Local soil conditions will determine the complexity of the grounding system required to meet the 25 Ohm (maximum)
resistance specied above. For example, a single 8’ ground rod may be sufcient to meet the requirement. In
some cases, a more elaborate system may be required such as multiple ground rods connected by a #6AWG
solid copper cable buried 8-12” below the surface. Where this is not possible, contact a local grounding system
expert for alternate methods that will meet the 25 Ohm (maximum) specication.
All ground rod connections must be made by means of a listed grounding clamp suitable for direct burial or
exothermic welding.
Power Output Return
For proper operation, the Service Power Inserter (SPI) must be securely bonded to the enclosure.
SPI
14 017-882-B0-001 Rev. C2 (10/2013)
Grounding and Earth Connection Notes, continued
Communications Grounding
For systems using an embedded transponder, the grounding connection is typically made either through a separate chassis ground
block bonded to the enclosure or by means of the internal mounting hardware which bonds the transponder through the CableUPS.
Please refer to the appropriate communications product manual for installation procedures.
For communication cables, Alpha strongly recommends the use of a surge arresting device electrically bonded to the Alpha Enclosure.
WARNING!
Low impedance grounding is mandatory for personnel safety and critical for the proper
operation of the cable system.
Tamper Switch Connector
To Battery Sense Wire Harnesses
RF Cable to Headend
Required
Grounded Surge Protector
(Alpha p/n 162-028-10 or equivalent)
15017-882-B0-001 Rev. C2 (10/2013)
1.0 Introduction
1.0Introduction
1.1 Alpha XM3-HP Intelligent CableUPS
Fig. 1-1, Alpha XM3-HP Intelligent CableUPS
The Intelligent CableUPS® powers signal processing equipment in cable television and broadband LAN
distribution systems. The transformer module provides a critical load with current-limited regulated AC power
that is free of spikes, surges, sags and noise.
During AC line operation, AC power entering the Power Supply is converted into a quasi square wave and is
regulated by a ferroresonant transformer at the required output voltage. The regulated voltage is connected
to the load via the output connectors and some power is directed to the battery charger to maintain a oat
charge on the batteries.
When the incoming AC line voltage signicantly deviates from normal, the Inverter Module automatically
switches to standby operation and maintains power to the load. During the switch to standby operation,
energy in the module’s ferroresonant transformer continues to supply power to the load. In standby mode,
the Power Supply powers the load until the battery voltage reaches a low-battery cutoff point.
When utility power returns, the transformer module waits a short time (approximately 10 to 20 seconds) for the
utility voltage and frequency to stabilize and then initiates a smooth, in phase transfer back to AC line power.
Once the transfer is complete, the battery charger recharges the batteries in preparation for the next event.
NOTE:
®
16
The duration of battery-backed standby operation depends upon the type and number of batteries and the load on
the Power Supply.
The Alpha XM3-HP CableUPS contains the following:
• Smart Display
• Hot-swappable Inverter Module
• Built-in Self Test
• Wide Input voltage range
• High efciency transformer
• Communications menu with DOCSIS®
parameters (only with optional DSM3 or IDH4
installed)
• Optional factory-installed AlphaDOC (PIM)
allows the XM3-HP to provide programmable
current limits for two output channels.
NOTE:
During a no-load start-up, the Power Supply may reduce output voltage to 75-80% of rated output voltage until a
load of greater than 1.5A is applied.
• Optional Smart AlphaGuard (SAG)
• Optional AlphaAPPs (APPS) card
• Via the Smart Display, the operator can
view all of the Power Supply’s operating
parameters.
• Troubleshooting tips automatically display
in the Alarm menu screen.
• Built-in metering circuits measure voltage
and current, without the need for external
test equipment.
017-882-B0-001 Rev. C2 (10/2013)
1.0 Introduction, continued
1.2 Theory of Operation
1.2.1 AC (Line) Operation
During AC Line operation, utility power is routed into the primary winding of the ferroresonant
transformer through the contacts of the transfer isolation relay. Simultaneously, in the inverter, power
is directed to the rectier circuitry providing power for the control circuitry. The bidirectional inverter
also serves as a battery charger during line operation. The ferroresonant transformer and an AC
capacitor form the resonant tank circuit, which provides excellent noise and spike attenuation, output
short-circuit current-limiting, and output voltage regulation. The ferroresonant transformer produces
a quasi square wave output which resembles a rounded square wave.
NOTE:
When measuring the output voltage of ferroresonant transformers, use only a true RMS AC voltmeter. NonRMS reading meters are calibrated to respond to pure sine waves and do not provide an accurate reading when
measuring quasi square wave output.
1.2.2 Standby Operation
When the incoming AC line voltage drops or rises signicantly or a complete power outage occurs,
the control logic’s line monitor activates standby operation. During the transfer from AC line to standby
operation, the battery powered inverter comes online as the isolation relay switches to prevent AC
power from back-feeding to the utility. The following changes also occur within the Power Supply:
• The isolation relay opens to disconnect the AC line from the primary winding of the ferroresonant
transformer.
• The control logic switches the inverter FETs on and off. This switching action converts the DC
battery current into AC current in the inverter windings of the ferroresonant transformer, providing
regulated power to the load.
• The control logic, which includes a microprocessor and other circuits to protect the inverter
FETs from overcurrent damage, monitors the condition of the batteries and the inverter during
standby operation. Since a prolonged AC line outage could severely discharge the batteries,
resulting in permanent damage, the control logic disables the inverter when the batteries drop
to a predetermined cutoff voltage.
• The XM3-HP offers two user-selectable EOD options based on either overall string voltage or
individual battery voltage. See Table 1-1 for battery specic EOD settings. Operation is dened
as follows:
• Battery String Voltage Mode which shuts off the inverter when the 36V bus voltage reaches
Low Battery Cutoff Voltage as seen at the inverter.
• Individual Battery Voltage Mode which shuts off the inverter when any battery in any string
(1-4) reaches Low Battery Cutoff Voltage.
• All units will factory default to Battery String Voltage Mode.
• Individual battery EOD will only be available (user-selectable) if individual battery voltages
are being sensed and present at logic card via the Smart AlphaGuard, DSM3 or other
approved status monitor card with individual battery voltage sensing.
1.0Introduction
• When set to Battery String Voltage Mode the “Low Battery Cutoff” (EOD) is not user adjustable
from the default. See Table 1-1 for more information.
• When set to individual Battery Voltage Mode the “Low Battery Cutoff” (EOD) will automatically
set to default values based on battery type (see Table 1-1). A secondary option is then
offered to the user for manually programming the “Low Battery Cutoff” (EOD), regardless
of battery type, within the range 1.65 to 1.80 V/C.
17017-882-B0-001 Rev. C2 (10/2013)
1.0 Introduction, continued
1.2 Theory of Operation, continued
1.2.2 Standby Operation, continued
• When set to Individual Battery Voltage Mode, if individual battery voltage is lost, the unit automatically
reverts back to Battery String Voltage Mode and "Low Battery Cutoff” (EOD) will revert back to default
value based on battery type.
String Low Battery
Cutoff (EOD)
Individual Low
Battery Cutoff
HP Batteries
OTHER Batteries
(EOD)
HP BatteriesGXL BatteriesOTHER Batteries
FixedFixedFixed
30.6 VDC
(1.70 V/C)
DefaultMinimumMaximum
10.2 VDC
(1.70 V/C)
10.5 VDC
(1.75 V/C)
10.5 VDC
(1.75 V/C)
31.5 VDC
(1.75 V/C)
9.9 VDC
(1.65 V/C)
31.5 VDC
(1.75 V/C)
10.8 VDC
(1.80 V/C)GXL Batteries
Table 1-1, Low Battery Cutoff (EOD)
1.0Introduction
• When acceptable AC line voltage returns, the Power Supply returns to AC line operation after a 10
to 20 second lag. This delay lets the AC line voltage and frequency stabilize before the control logic
phase-locks the inverter’s output to the utility input. The control logic then de-energizes the isolation
relay, reconnects the AC line to the primary of the ferroresonant transformer and disables (turns off)
the inverter. This results in a smooth, in-phase transfer back to utility power without interruption of
service to the load. The battery charging circuit then activates to recharge the batteries in preparation
for the next power outage.
1.2.3 Charger Modes of Operation
AlphaCell BatteriesOTHER Batteries
HPGXLDefaultMinimumMaximum
Float V/C2.252.272.272.102.35
Accept V/C2.352.402.402.202.45
Automatic 30-Minute
Refresh On/Off
Manual 24-Hour
Refresh On/Off
Refresh V/C2.452.452.452.402.50
Rest On/OffONOFF
Temperature
Compensation
ONON OFF OFFOFF
OFF
(Programmable)
-4mV / ºC / cell- 5mV / ºC / cell
OFF
(Programmable)
OFF
(Programmable)
OFF
(Programmable)
-5mV / ºC / cell
(Programmable)
OFFON
OFFON
0 mV / ºC / cell-5mV / ºC / cell
18
Table 1-2, Charger Modes of Operation
NOTE:
If a battery type other than an AlphaCell is installed, it is the responsibility of the technician to review the proper
charging specications for the battery used.
017-882-B0-001 Rev. C2 (10/2013)
1.0 Introduction, continued
1.2 Theory of Operation, continued
1.2.3 Charger Modes of Operation, continued
The Alpha XM3-HP uses a three-stage (other), four-stage (AlphaCell GXL), or ve-stage
(AlphaCell HP) temperature compensated battery charger as determined by the type of
battery used in the system. During AC line operation, the inverter winding on the ferroresonant
transformer feeds the charger circuit which provides the appropriate charge voltages to the
batteries.
3-Stage Charger Modes (BULK/ACCEPT/FLOAT):
The 3-stage charger is applied when the battery type of OTHER is selected in the Smart Display
menu.
BULK charge is a “Constant Current” charge. The maximum current is 10A. As the charge is
returned to the batteries, their voltage increases to a specic threshold (2.40VDC per cell). The
charger then switches to ACCEPT mode. The BULK charger mode generally returns the battery
charge state to 80 percent of rated battery capacity.
ACCEPT charge is a “Constant Voltage” charge. This voltage, default 2.40VDC (programmable
2.20-2.45VDC) per cell, is temperature-compensated to ensure longer battery life and proper
completion of the charge cycle. This cycle is complete when the charging current into the
batteries becomes less than 0.5A or approximately six hours elapses from the time ACCEPT
mode was entered, at which time the charger switches to the FLOAT mode of operation.
FLOAT charge is a temperature-compensated charge, default 2.27VDC (programmable 2.10-
2.35VDC) per cell. During FLOAT mode, the batteries are fully charged and ready to provide
backup power. The charger provides a small maintenance charge to overcome the batteries selfdischarge characteristics and other minor DC loads within the Power Supply.
Battery Voltage
Battery Current
1.0Introduction
BULK
Constant
Current Mode
(10A max) until
battery voltage
reaches the
ACCEPT level
(2.40V/cell)
Fig. 1-2, 3-Stage Charger Modes
ACCEPT
Constant Voltage Mode
(2.40V/cell) until battery
current demand drops
below .5A or time out
based on 4 minutes per
Ah battery capacity
This preset value is applied to AlphaCell GXL batteries when selected in the Smart Display Menu.
A 30-minute REFRESH charge is added, after BULK and ACCEPT states, before dropping down
to FLOAT state, when the batteries are discharged more than 30% and it has been more than 30
days since the last REFRESH charge.
A manual REFRESH charge mode is recommended to be applied to all new batteries upon
installation. This mode “boosts” the individual cell voltage of batteries that may have been in
storage before they were placed on permanent FLOAT. Refresh can be initiated manually via
menu selection or automatically when the battery date code is updated (See Section 3.3.2,
Battery Information and Conguration for further instructions). The REFRESH charge is a one-
time, 24-hour charge to raise individual cell voltage to 2.45VDC, and may bypass the BULK and
ACCEPT states if the batteries are fully charged. The batteries are temperature-compensated at
-0.005VDC per cell per degree C to ensure safe battery cell voltage and maximize battery life.
Battery Voltage
1.0Introduction
Battery Current
BULK
Constant
Current Mode
(10A max) until
battery voltage
reaches the
ACCEPT level
(2.40V/cell)
ACCEPT
Constant Voltage Mode
(2.40V/cell) until battery
current demand drops
below .5A or time out
based on 4 minutes per
Ah battery capacity
This preset value is applied to AlphaCell HP batteries when selected in the Smart Display Menu.
REST: Charger is turned off (if ENABLED) and leaves the batteries without external voltage
applied on the battery. Removing charged voltage and allowing the battery to sit in an open
circuit environment maximizes the battery life by eliminating the chance of overcharging individual
cells inside the 12V battery.
If the Smart AlphaGuard (SAG) is installed and the battery harness is connected, the unit will not
go into REST mode until the SAG indicates that any batteries are less than or equal to 0.3V out of
balance, or until 4 days per string has elapsed, whichever comes rst after the 6 hour oat period.
After any discharge/recharge cycle, once the charger reaches FLOAT mode, it will wait 24 hours
in FLOAT mode before going to REST mode. On a daily basis, without any discharge cycle, the
batteries will be in FLOAT for 25% and REST (charger off) for 75% (6 hours oat, 18 hours rest).
REST mode is terminated if voltage drops to less than 2.12VPC. Upon exiting REST mode due
to a voltage below 2.12VDC, a BULK/ACCEPT cycle will be initiated.
The battery charger voltage is temperature-compensated at -0.004VDC per cell per degree C to
ensure a safe battery cell voltage and to maximize battery life.
BULK
Constant
Current Mode
(10A max) until
battery voltage
reaches the
ACCEPT level
(2.40V/cell)
Battery Voltage
Battery Current
ACCEPT
Constant Voltage
Mode (2.40V/cell)
until battery current
demand drops below
.5A or time out based
on 4 minutes per Ah
battery capacity
Fig. 1-4, 5-Stage Charger Modes
REFRESH
Constant
Voltage
Mode
(2.45V/cell)
for 30
minutes
FLOAT
Constant
Voltage
Mode
(2.27V/cell)
Initial 24
hours
REST
Charger Off
Open Circuit
Voltage
18 hours
1.0Introduction
FLOAT
AND REST
CYCLES
Charger off for
18 hours
Float for 6
hours
21017-882-B0-001 Rev. C2 (10/2013)
1.0 Introduction, continued
1.2 Theory of Operation, continued
1.2.4 Output Voltage Modes of Operation
The XM3-HP can be congured to Fine or Coarse Mode of operation for Output Voltage
Regulation via the Power Conguration Menu (see Section 3.3.1, Power Information and Conguration).
Fine Mode:
In Fine Mode the power supply will maintain the tightest output voltage regulation possible,
+1/-2.5% for 89V or +1.5/-3.5% for 63V. It will automatically adjust to and from Coarse Override
Mode temporarily if:
a) The unit switches to inverter more than 2 times in a 60-day period;
b) the unit switches tap relays more than 60 times in a 60-day period.
The power supply will automatically adjust back to Fine Mode if there are less than 2 inverter
transfers and less than 15 output tap switches in a 60-day period.
Coarse Mode:
In Coarse Mode the XM3-HP will maintain a wider output voltage regulation window, +1/-5% for
89V or +1.5/-6% for 63V. In this mode the power supply switches taps as few times as possible. It
will never automatically adjust to Fine Mode once Coarse Mode is selected.
1.0Introduction
22
017-882-B0-001 Rev. C2 (10/2013)
1.0 Introduction, continued
1.3 Alpha XM3-HP CableUPS® Layout
The Intelligent CableUPS is comprised of the following:
Transformer module, which acts as a stand-alone line conditioner. The transformer module contains a
ferroresonant transformer, ferroresonant capacitor, line isolation relay, Power Distribution Board, EMC
Filter board and the optional AlphaDOC (PIM) board, Smart AlphaGuard (SAG) and Alpha APPS card.
NOTE:
The option cards require an Inverter Module installed in order to be functional.
Intelligent Inverter Module, which is required for standby operations and contains circuitry needed for
the three-to-ve-stage temperature-compensated battery charger, DC to AC inverter, AC line detectors
and Smart Display.
Optional DOCSIS Communications Module (interfaces to Inverter Module) provides remote status
monitoring and communications.
High Efciency
Transformer Module
Intelligent Inverter
Module
DOCSIS
Communications
Module
®
1.3.1 Side Panel Connectors
1
AC Input Line Cord Connector
Optional Smart AlphaGuard Connector
2
3
Optional APPS Card
4
Output 1 Connector
5
Output 2 Connector
Fig. 1-5, Front Panel, XM3-HP Power Supply
1
Fig. 1-6, Side Panel, XM3-HP Power Supply
1.0Introduction
2
3
4
5
23017-882-B0-001 Rev. C2 (10/2013)
1.0 Introduction, continued
1.3 Alpha XM3-HP CableUPS Layout, continued
1.3.2 Front Panel Indicators
Circuit boards for the optional Smart AlphaGuard (SAG), Alpha APPS card and the two-output
AlphaDOC (PIM) are located behind the removable front panel.
1
Smart AlphaGuard (SAG): Enables the XM3 to gather battery voltage data for up four battery
strings (A through D). Its Charge Management Technology applies excess charge current to
batteries as needed to maintain balanced voltages throughout the string. See Section 1.3.4,
Smart AlphaGuard for connection information and LED functionality.
Alpha APPS Card
2
Output 1 (White = Neutral, Black = Line): The AC output connector is clearly marked and color-
3
coded for easy identication. The Service Power Inserter (SPI) connects directly into the Output 1
connector.
4
Output 2 (White = Neutral, Black = Line): When no AlphaDOC is installed, this output is wired in
parallel to Output 1 and is often used for auxiliary loads. If the AlphaDOC is installed, Output 2
can be isolated from Output 1.
1.0Introduction
1
2
3
4
Fig. 1-7, Detail View, Front Panel Connections and
Indicators
24
017-882-B0-001 Rev. C2 (10/2013)
1.0 Introduction, continued
1.3 Alpha XM3-HP CableUPS Layout, continued
1.3.3 AlphaDOC (PIM)
The optional AlphaDOC adds a second isolatedoutput to the Power Supply. It provides programmable
current limits for two output channels and protects system components by shutting down the load
during overcurrent and short circuit conditions.
The AlphaDOC has a programmable overcurrent threshold (3A-25A) and overcurrent tolerance period
that species the time (20-9900ms) an overcurrent condition is permitted before shutting down.
The programmable retry limit can be programmed to select how many times (0-40) after a
programmable delay (5-301 seconds) the AlphaDOC will attempt to reconnect an output once it
has been shut down. When the limit is reached, the XM3 Power Supply automatically retries once
every 30 minutes until the fault clears.
Adding the AlphaDOC to the Power Supply provides these advantages:
A second isolated output: The main purpose of the AlphaDOC is to limit the impact of a
fault condition in one output channel. If a fault condition occurs in a Power Supply (without
the optional AlphaDOC installed) the entire customer network can be affected. The AlphaDOC
option affords protection to one output should a fault condition exist on the other. This gives
you exibility to isolate Output 1 from Output 2.
A current for critical loads: With the AlphaDOC option, you can designate one output
as the primary connection and the other output as the secondary connection. Commonly,
critical loads are connected to Output 1 as the primary feeder. Using the overcurrent limit
settings, you can ensure the primary output always provides the necessary power. For
example, on a 15 Amp Power Supply, if a customer needs 10 Amps available on Output 1,
the overcurrent limit for Output 2 is set at 5 Amps, so regardless of Output 2, 10 Amps will
remain available for the primary Output 1.
Additional current protection: The standard Power Supply current limit protection is
provided by the fold-back characteristics of the transformer (150% of rated output). The
150% current limit may exceed the ratings of active devices in the cable network and
cause failures. You can lower the maximum current provided at each output by lowering the
overcurrent limit of each respective output. Therefore, to minimize failures due to excess
current supply, set the overcurrent limit to a value below the maximum current the active
components can tolerate.
NOTE:
The table below depicts a condition in which no DOC is installed, or no individual output is above
its trip setting.
Power Supply Load
918
All Other Models
Permitted Duration of Load
>125%>150%30 seconds
113% to 125%125% to 150%10 minutes
108% to 113%115% to 125%30 minutes
<108%<115%Several months
Table 1-3, Duration of Load
For example, on a 18A Power Supply, where both outputs are programmed to 10A maximum
and both outputs are supplying 10A, neither output is “in violation” but the total system at 18A
is operating at 111% of its rated output. In this example, after 30 minutes, the Power Supply
will begin a “load shedding” algorithm. The rst action is to disconnect Output 2. If this does not
correct the system overload, the next action is to disconnect Output 1.
1.0Introduction
25017-882-B0-001 Rev. C2 (10/2013)
1.0 Introduction, continued
1.3 Alpha XM3-HP CableUPS Layout, continued
1.3.3 AlphaDOC (PIM), continued
NOTE:
Only qualied personnel should install the AlphaDOC. To install the AlphaDOC you must completely shut
down the Power Supply. To maintain output to the load, consider using either the APP9015S or APP9022S
Service Power Supply during installation.
WARNING!
To avoid exposing the technician to potentially lethal voltages, before you proceed you
must remove all power from the Power Supply; unplug the Power Supply from the AC
power source, remove all front panel connections and disconnect the battery connector.
1. Completely shut down the Power Supply; verify all power is removed. Ensure utility power is off and
battery power is safely secured (or not installed) in the enclosure assembly. All connections and
cables must be removed from the Power Supply. To maintain output to the load, consider using the
APP9015S or APP9022S Service Power Supply when installing the AlphaDOC.
2. To remove the transformer module’s front panel, remove the three front panel screws.
3. Remove the output voltage wires from the terminal block, see Fig. 1-8.
4. Remove the ribbon cable.
5. Lift the front panel up and away from the chassis.
6. Remove the 6-32 KEPS nut securing the single-output wire harness and output connector bracket.
7. Replace with the AlphaDOC board and dual output wire harness assembly.
1.0Introduction
8. Attach the nomex to the back of the PCB using the two 3/8" circuit board supports
9. Install the output connector bracket using the 6-32 KEPS nut that was removed in Step 6 on the PEM
stud that is farthest from the connectors.
10. Install the PCB using two 6-32 screws, routing the wires under the PCB and nomex as shown.
11. Connect the dual output voltage wires to the output voltage terminal block as shown, see Fig. 1-8.
Torque terminal block screws to 7in-lbs (0.79N-m).
12. Replace the front panel.
13. Replace connections and return the unit to service.
1.3.3.1 Installing the AlphaDOC
26
Fig. 1-8, Output Voltage
Terminal Block
O
O
O
O
Output Voltage
Fig. 1-9, AlphaDOC Standoff and Screw Locations
O
Wires
017-882-B0-001 Rev. C2 (10/2013)
1.0 Introduction, continued
1.3 Alpha XM3-HP CableUPS Layout, continued
1.3.3 AlphaDOC (PIM), continued
1.3.3.1 Installing the AlphaDOC, continued
NOTE:
For XM3-910HP and XM3-615CE-HP models, a 5-position terminal
block is included, see Fig. 1-10.
Channel 1 Overcurrent Limit: The RMS current level that causes the Output 1 protection relay
to trip after a specied delay (overcurrent tolerance period).
Channel 2 Overcurrent Limit: The RMS current level that causes the Output 2 protection relay
to trip after a specied delay (overcurrent tolerance period).
Retry Delay: The time between each attempt to restart an output in the event of an overcurrent
event.
Retry Limit: The number of times the Power Supply attempts to restart an output connection.
Once the RETRY LIMIT is exceeded, standard models attempt to restart the output connection
every 30 minutes. Set this parameter to “zero” to disable the “automatic retry” function.
Overcurrent Tolerance Period (20-9900ms): In the event of an overcurrent episode, the amount
of time an output overcurrent condition is permitted on either output connection. Once this time
expires, the output protection relay disables its output feeder.
Output 1 Reset/Output 2 Reset: This manually resets corresponding tripped output. These are
not displayed if the corresponding output is not tripped.
NOTE:
Programming any of the above parameters will reset the “trip/retry” counters.
Fig. 1-10, 5-Position Output
Voltage Terminal Block
1.0Introduction
Read Only AlphaDOC Menu Items:
AlphaDOC Option: Automatically senses and indicates whether the AlphaDOC is installed.
AlphaDOC FW: Firmware version installed in the AlphaDOC.
DOC ##########: Serial number of the AlphaDOC.
NOTE:
If the optional AlphaDOC is not installed, the values shown under the “AlphaDOC OPTION” line of the
Smart Display are hidden.
27017-882-B0-001 Rev. C2 (10/2013)
1.0 Introduction, continued
1.3 Alpha XM3-HP CableUPS Layout, continued
1.3.4 Smart AlphaGuard
The Smart AlphaGuard (SAG) is an optional device that maximizes battery life.
The SAG enables the XM3-HP system to gather individual battery voltages and balance the
batteries. A description of the SAG's operation and features follows.
1.3.4.1 Theory of Operation
The Smart AlphaGuard (SAG) communicates directly with the XM3. The SAG sends
battery data, unit states and alarms to the XM3 and the XM3 sends control messages
back to the SAG.
The SAG is a battery balancer with multiple string capability and integrated intelligent
functions. It minimizes differences in individual battery voltages during the charging of
the batteries (all modes except REST) by transferring charge from a battery with a higher
voltage to the batteries with lower voltages within a string. The SAG's balancer circuit
switches between strings enabling a single SAG to service up to four strings of batteries.
To accomplish this the SAG periodically measures all the battery voltages. These
measurements are sent to the system master XM3. Voltage measurements are used
to determine the level of balance of the batteries and determine if there is one or more
batteries that need to be balanced. The level of balance will determine which string the
SAG will focus on. The SAG selects the string with the highest delta mean (Vbat-Vmean)
to balance rst.
1.0Introduction
There are two SAG models available, one model for 1–2 strings, and one model for 1–4
strings.
28
017-882-B0-001 Rev. C2 (10/2013)
1.0 Introduction, continued
1.3 Alpha XM3-HP CableUPS Layout, continued
1.3.4 Smart AlphaGuard, continued
1.3.4.2 Connections
The connection from the embedded SAG to the battery strings are made with one of the
orderable wire kits. Kits for one, two, three, or four stings are available. Kits are also
available that mate to the external AlphaGuard wire kit. The SAG wire kit consists of a
string 36V positive and a string negative that are common for all strings. For each string
(A, B, C and D), there are two additional wires that must be connected.