Unipower ARE-M02406 User manual

Product Manual
for
Micro ARE–M Series
24V Float Chargers
Single-Phase Input
PM990.1070.24, Issue 12
UNIPOWER, LLC
3900 Coral Ridge Drive
Coral Springs, FL 33065
Phone: [phone]
Toll Free: 1-800-440-3504
Web site – http://www.unipowerco.com

Micro ARE-M Series 24V Chargers, Single Phase Front Matter
PM990-1070-24, Issue 12
i
RECEIVING INSTRUCTIONS
and
GENERAL EQUIPMENT INFORMATION
IMPORTANT SAFETY INSTRUCTIONS
1. SAVE THESE INSTRUCTIONS- This manual contains important
safety and operating instructions for the Micro ARE-M Series
units.
2. Before using the Micro ARE-M Series unit, read all instructions
and cautionary markings on the unit, battery, and products using
battery.
3. CAUTION- When used with batteries, use only lead-acid or nickel-
cadmium type rechargeable batteries. Other types of batteries
may burst causing personal injury and damage.
ATTENTION: Lorsque utilisé avec des accumulateurs, utilisez
UNIQUEMENT des accumulateurs acides plomb ou nickel–
cadmium RECHARGABLE. AUTRES TYPES DE BATTERIE
peuvent causer, éclatement ET BLESSURES personnelles.
Please Note: For your protection, this product manual should be read
and thoroughly understood before unpacking, installing, using, or
servicing the described equipment.
UNIPOWER, LLC presents all equipment to the delivering carrier securely
packed and ready for transport. Upon acceptance of the equipment from us, the
delivering carrier assumes responsibility for its safe delivery to you. Once you
receive the equipment, it is your responsibility to document any damage to the
equipment that was sustained during transport to you and to file your claim with
the carrier promptly and accurately.
PACKAGE INSPECTION
Before unpacking the shipment, examine the shipping container for any visible damage: punctures, dents,
and any other signs of possible internal damage.
Describe any damage or shortage on the receiving documents and have the carrier’s representative sign
his/her full name.
If the receiving freight bill notes that a Tip-N-Tell is attached to your freight, locate the indicator and note
the color of the arrow. If the Tip-N-Tell arrow has turned even partially blue, this means the freight has
been tipped in transport. Make sure the carrier notes this on your receipt before you sign for the freight.

Micro ARE-M Series 24V Chargers, Single Phase Front Matter
PM990-1070-24, Issue 12
ii
EQUIPMENT INSPECTION
Promptly upon receipt of shipment, open the container and inspect the contents for damage; see the
unpacking section that follows. If it is necessary to move or otherwise handle the shipment, refer to the
Handling section for instructions and warnings.
Unpack the shipment carefully to avoid scratching or otherwise marring the exterior finish. Be careful not
to discard any included equipment, parts, or manuals. If damage is detected, call the delivering carrier to
determine appropriate action. The carrier may require an inspection.
IMPORTANT: If damage is detected, save all shipping material for the carrier’s representative!
If damage is detected, also notify UNIPOWER, LLC; contact information is in Section 1.5 Product
Support UNIPOWER, LLC will determine if the equipment should be returned for repair. If it is
determined that the equipment should be returned to UNIPOWER, LLC, ask the delivering carrier to send
the packages back to UNIPOWER, LLC at the delivering carrier's expense. Be sure that the equipment is
properly packaged for shipment.
If repair is necessary, UNIPOWER, LLC will invoice you for the repair so that you may submit the bill to
the delivering carrier with your claim form.
It is your responsibility to file a claim with the delivering carrier. Failure to properly file a claim for
shipping damages may void warranty service for any physical damages later reported for repair.
UNPACKING
A charger is shipped attached to a wood skid. This facilitates handling with a lift truck by inserting the
forks under the bottom of the skid. A smaller unit is covered by a carton and banded to a skid. A larger
unit is bolted to a skid and covered by a shipping carton that is banded to the skid.
Export packaging consists of a crate, a moisture-resistant cover for the charger, and a drying agent. The
charger is bolted to the crate.
To unpack:
CAUTION
Do not stand in front of steel bands since they may
whip out when cut.
ATTENTION
Ne pas se tenir devant les bandes d'acier, lorsque
coupées.
Cut the bands and remove carton from the skid.
1. Either remove the unit from the carton or unbolt the unit from the skid.
2. Check the shipping carton, before discarding, for the packing slip and other material, which may
be contained in it.
3. Carefully inspect the charger for shipping damage (i.e. loosened connections or mountings,
dislodged circuit boards). If damage is detected, notify UNIPOWER, LLC; contact information
is provided in Section 1.5 Product Support.
STORAGE
If the charger is not to be used immediately, store it (fully packed, if possible) in a clean, dry location
protected from physical damage, condensation, and overhead drip.

Micro ARE-M Series 24V Chargers, Single Phase Front Matter
PM990-1070-24, Issue 12
iii
HANDLING
Refer to the product nameplate for the model information and then see the Specifications section for
charger dimensions and weight. Use sufficient personnel and power equipment to ensure safe handling.
WARNING
Crush hazard
The charger can weigh up to 216 lbs. (98 kg).
Keep hands and feet from beneath the charger.
Use a forklift or other equipment to move or
transport the charger.
AVERTISSEMENT
Risque d'écrasement
Le chargeur peut peser jusqu'à 216 lb. (98 kg).
Gardez les mains et les pieds libres du dessous du
chargeur.
Utilisez un chariot élévateur ou autres équipements
pour déplacer ou transporter le chargeur.
Use care in handling and unpacking the charger. Refer to the previous sections as needed.
NAMEPLATE
A UNIPOWER, LLC product is identified by a nameplate that includes model number, part number, and
serial number information, as appropriate. Please include this information in all correspondence with
UNIPOWER, LLC A sample nameplate is shown below.
MODEL NO. ARE-M02406
SER.NO. APS0719978
AC VOLTS 120/208/240
PH 1 HZ 60
DC VOLTS 26.4
SPEC. 102.1041.00A
°T C 50
AC AMPS 2/1.2/1
CELLS 12
DC AMPS 6
TECHNICAL SUPPORT
CALL FIELD SERVICE
EMERGENCY
INITIAL SETTINGS
All equipment is shipped from the factory fully inspected and adjusted. Read the technical reference or
product manual before installing or making any adjustments.
SPARE PARTS
See Table 6-2 Parts Lists to select the spare and replacement parts you want immediately available to
minimize downtime should a failure occur.

Micro ARE-M Series 24V Chargers, Single Phase Front Matter
PM990-1070-24, Issue 12
iv
PRODUCT MANUAL ISSUE HISTORY
ISSUE
PAGE(S)
DESCRIPTION
ISSUED BY
/DATE
12 All
Updated entire manual with new UNIPOWER logo,
addresses, & contact numbers. See PCO# 44409
WD/ 6/7/17
PRODUCT MANUAL SUMMARY
This product manual provides installation, operation, maintenance, and troubleshooting procedures for the
UNIPOWER, LLC Micro ARE-M Series 24V Chargers.
Thank you for purchasing a Micro ARE-M Series 24V Charger. We at UNIPOWER, LLC are proud of
the quality of our products and welcome any suggestions to further improve our design to fit your needs.
PROPRIETARY AND CONFIDENTIAL
The information contained in this product manual is the sole property of UNIPOWER, LLC.
Reproduction of the manual or any portion of the manual without the written permission of UNIPOWER,
LLC is prohibited.
© Copyright UNIPOWER, LLC 2015
DISCLAIMER
Data, descriptions, and specifications presented herein are subject to revision by UNIPOWER, LLC
without notice. While such information is believed to be accurate as indicated herein, UNIPOWER, LLC
makes no warranty and hereby disclaims all warranties, express or implied, with regard to the accuracy or
completeness of such information. Further, because the product(s) featured herein may be used under
conditions beyond its control, UNIPOWER, LLC hereby disclaims and excludes all warranties, express,
implied, or statutory, including any warranty of merchantability, any warranty of fitness for a particular
purpose, and any implied warranties otherwise arising from course of dealing or usage of trade. The user
is solely responsible for determining the suitability of the product(s) featured herein for user’s intended
purpose and in user’s specific application.
Throughout the remainder of this manual, “UNIPOWER” will mean “UNIPOWER, LLC.”
PERSONNEL REQUIREMENTS
Installation, setup, operation, and servicing of this equipment should be performed by qualified persons
thoroughly familiar with this Product Manual and Applicable Local and National Codes. A copy of this
manual is included with the equipment shipment.

Micro ARE-M Series 24V Chargers, Single Phase Contents
PM990-1070-24, Issue 12
v
Table of Contents
1.0 INTRODUCTION ............................................................................................................................................. 1-1
PRODUCT DESCRIPTION............................................................................................................................ 1-11.1 MODEL DESIGNATION............................................................................................................................... 1-21.21.2.1 Options................................................................................................................................................. 1-2
SPECIFICATIONS ......................................................................................................................................... 1-41.31.3.1 Mechanical............................................................................................................................................... 1-4
1.3.2 Electrical.................................................................................................................................................. 1-5
1.3.3 Front Panel Displays and Controls ......................................................................................................... 1-8
1.3.4 Environmental.......................................................................................................................................... 1-9
ABBREVIATIONS AND ACRONYMS ........................................................................................................ 1-91.4 PRODUCT SUPPORT.................................................................................................................................. 1-101.5
2.0 INSTALLATION............................................................................................................................................... 2-1
INSTALLATION SUMMARY....................................................................................................................... 2-12.1 REFERENCE MATERIAL............................................................................................................................. 2-22.22.2.1 Tools and Accessories.......................................................................................................................... 2-2
2.2.2 Selecting and Sizing DC Power Cables............................................................................................... 2-3
2.2.3 Torque Specifications .......................................................................................................................... 2-4
2.3 MECHANICAL INSTALLATION ......................................................................................................... 2-5
2.4 ELECTRICAL INSTALLATION............................................................................................................ 2-8
2.4.1 Grounding the Cabinet ........................................................................................................................ 2-9
2.4.2 Installing a User’s AC Electrical Service Panel.................................................................................. 2-9
2.4.3 Connecting AC Input Cables ............................................................................................................. 2-10
2.4.4 Connecting the Battery String............................................................................................................ 2-10
2.4.5 Connecting an External DC Load...................................................................................................... 2-11
2.4.6 Connecting Alarm Annunciation........................................................................................................ 2-12
2.4.7 Connecting the Battery Temperature Probe (Option) ....................................................................... 2-14
3.0 COMMISSIONING........................................................................................................................................... 3-1
PREPARATORY STEPS................................................................................................................................ 3-13.1 COMMISSIONING PROCEDURE................................................................................................................ 3-23.2
4.0 SETUP AND OPERATION.............................................................................................................................. 4-1
TURNING ON ACOMMISSIONED CHARGER.......................................................................................... 4-14.1 TURNING OFF ACOMMISSIONED CHARGER........................................................................................ 4-14.2 SETTING UP AND OPERATING ACHARGER .......................................................................................... 4-14.34.3.1 View Active Alarms.................................................................................................................................. 4-6
4.3.2 View Charger Status................................................................................................................................ 4-6
4.3.3 Change Operating Mode (Manual Equalization) .................................................................................... 4-7
4.3.4 Change Charger Setup (Configuration)................................................................................................... 4-8
5.0 CIRCUIT DESCRIPTION ............................................................................................................................... 5-1
6.0 MAINTENANCE............................................................................................................................................... 6-1
VOLTAGE CHANGES................................................................................................................................... 6-16.1 PREVENTIVE ................................................................................................................................................ 6-16.2 TROUBLESHOOTING .................................................................................................................................. 6-26.36.3.1 Service Access.......................................................................................................................................... 6-2
6.3.2 Circuit Board Handling........................................................................................................................... 6-2
6.3.3 ARE-M Display Codes............................................................................................................................. 6-3
CHECKING COMPONENTS......................................................................................................................... 6-66.4 12" CABINET ASSEMBLY AND SCHEMATICS........................................................................................ 6-86.5 24" CABINET ASSEMBLY AND SCHEMATICS...................................................................................... 6-126.6 PARTS LIST ................................................................................................................................................. 6-176.7 INTERFACE BOARD .................................................................................................................................. 6-196.86.8.1 Board Interchangeability................................................................................................................... 6-19
6.8.2 Troubleshooting................................................................................................................................. 6-20

Micro ARE-M Series 24V Chargers, Single Phase Contents
PM990-1070-24, Issue 12
vi
6.8.3Replacing the Interface Board........................................................................................................... 6-20
6.9 CONTROL AND DISPLAY BOARD................................................................................................... 6-22
6.9.1 Replacing the Board.......................................................................................................................... 6-22
6.10 KEYPAD ............................................................................................................................................... 6-23
7.0 OPTIONS AND ACCESSORIES..................................................................................................................... 7-1
LIGHTNING ARRESTER ..................................................................................................................................... 7-17.1 BLOCKING DIODE............................................................................................................................................. 7-27.2 OUTPUT MOVS................................................................................................................................................ 7-37.3 DRIP SHIELD .................................................................................................................................................... 7-37.4 TEMPERATURE SENSOR.................................................................................................................................... 7-37.5 GROUND DETECTION SWITCH .......................................................................................................................... 7-37.6 DNP3 COMMUNICATIONS ................................................................................................................................ 7-37.7 HIGH INTERRUPT AC BREAKERS ...................................................................................................................... 7-37.8
List of Tables
TABLE 1-1 MODEL DESIGNATION..................................................................................................................... 1-3
TABLE 1-2 SETTABLE PARAMETERS, STANDARD MODELS...................................................................... 1-8
TABLE 2-1 COPPER WIRE SIZING...................................................................................................................... 2-4
TABLE 2-2 TORQUE SPECIFICATIONS, STEEL FASTENERS........................................................................ 2-4
TABLE 4-1 FACTORY DEFAULT SETUP PARAMETER VALUES.................................................................. 4-8
TABLE 4-2 TYPICAL FLOAT/EQUALIZE VOLTAGES..................................................................................... 4-9
TABLE 6-1 TROUBLESHOOTING CHART......................................................................................................... 6-4
TABLE 6-2 12" CABINET REPLACEMENT PARTS LIST; 24 VDC MODELS............................................... 6-17
TABLE 6-3 INTERFACE BOARD SWITCH SETTINGS................................................................................... 6-19

Micro ARE-M Series 24V Chargers, Single Phase Contents
PM990-1070-24, Issue 12
vii
List of Figures
FIGURE 2-1 12" CABINET DIMENSIONS........................................................................................................... 2-6
FIGURE 2-2 24" CABINET DIMENSIONS........................................................................................................... 2-7
FIGURE 2-3 ELECTRICAL INSTALLATION, BLOCK DIAGRAM................................................................... 2-8
FIGURE 2-4 TYPICAL ELECTRICAL ENTRANCE AND BREAKER LOCATIONS........................................ 2-8
FIGURE 2-5 ELECTRICAL INSTALLATION TERMINALS, 12" AND 24" CABINET MODELS ................... 2-9
FIGURE 2-6 INTERFACE BOARD...................................................................................................................... 2-13
FIGURE 2-7 ALARM CONNECTIONS DETAIL, INTERFACE BOARD......................................................... 2-13
FIGURE 3-1 OPERATOR CONTROLS ................................................................................................................. 3-1
FIGURE 4-1 MAIN MENU..................................................................................................................................... 4-3
FIGURE 4-2 CHARGER STATUS MENU............................................................................................................. 4-4
FIGURE 4-3 CHARGER OPERATING MODE MENU......................................................................................... 4-4
FIGURE 4-4 CHARGER SETUP (CONFIGURATION) MENU ........................................................................... 4-5
FIGURE 5-1 BLOCK DIAGRAM, TYPICAL MICRO ARE-M FLOAT CHARGER........................................... 5-1
FIGURE 6-1 CAPACITOR DISCHARGE BUTTON......................................................................................................... 6-6
FIGURE 6-2 12" CABINET ASSEMBLY...................................................................................................................... 6-8
FIGURE 6-3 12" CABINET SCHEMATIC;ARE-M02406, 120/208/240...................................................................... 6-9
FIGURE 6-4 12" CABINET SCHEMATIC;ARE-M02412, 120/208/240..................................................................... 6-10
FIGURE 6-5 12" CABINET SCHEMATIC,ARE-M02425, 120/208/240 .................................................................... 6-11
FIGURE 6-6 24" CABINET ASSEMBLY.................................................................................................................... 6-12
FIGURE 6-7 24" CABINET SCHEMATIC;ARE-M02450, 120/208/240.................................................................... 6-13
FIGURE 6-8 24" CABINET SCHEMATIC;ARE-M02450, 480 .................................................................................. 6-14
FIGURE 6-9 24" CABINET SCHEMATIC;ARE-M024100, 120/208/240.................................................................. 6-15
FIGURE 6-10 24" CABINET SCHEMATIC;ARE-M024100, 480 .............................................................................. 6-16
FIGURE 6-11 COMPONENT LOCATIONS, INTERFACE BOARD.................................................................. 6-21
FIGURE 6-12 CONTROL AND DISPLAY BOARD ............................................................................................ 6-22
FIGURE 7-1 LIGHTNING ARRESTER; 120, 208, 240 AND 480 VAC CONNECTIONS .................................. 7-1
FIGURE 7-2 BLOCKING DIODE ADD ALTERNATIVE .................................................................................... 7-2

Micro ARE-M Series 24V Chargers, Single Phase Introduction
PM990-1070-24, Issue 12
1-1
1.0 INTRODUCTION
The purpose of this manual is to provide the reader with the procedures for installing, configuring,
operating, and servicing UNIPOWER Micro ARE-M Float Chargers.
Chapter 1 Introduction provides a description of the Micro ARE-M series chargers, the model designation
list, and detailed specifications. This chapter also has product support telephone and FAX numbers and
the company’s Internet URL where the latest issue of this manual can be found.
Chapter 2 Installation describes mechanical and electrical installation of the charger. Each aspect of the
installation is discussed and supporting illustrations are provided.
Chapter 3 Commissioning presents a suggested procedure that can be integrated into or modified by your
company’s commissioning procedures.
Chapter 4 Setup and Operation describes charger displays and use of the 4-button keypad. Setup menus
are provided to ease navigation through the provided displays. Default setup values are listed.
Chapter 5 Circuit Description includes a block diagram level description of the charger circuitry. Read
this chapter before installing, configuring, operating, or servicing the charge.
Chapter 6 Maintenance provides preventive maintenance and troubleshooting information. A
troubleshooting chart is included as are component location drawings and schematics for all charger
models. These drawings are followed by a section containing replacement parts lists. Troubleshooting
information for the Interface Board and the Control and Display Board follows the parts lists.
Chapter 7 Options and Accessories furnishes details concerning the accessories available at the time this
manual was published.
PRODUCT DESCRIPTION1.1
The Micro ARE-M series of single-phase, controlled ferroresonant float chargers is intended for utility,
communications, and other applications where a source of stable, electrically clean, reliable DC power is
needed. Available models provide an output voltage of 24 VDC and an output current from 6-100
amperes, depending upon model. Refer the Model Designation for a list of standard models and options.
Installation is quick and easy. The design accommodates floor, wall, or rack mounting with standard and
optional brackets. A mounting method is usually specified on the equipment order so the proper brackets
can be supplied.
The charger is configured and operated from the front of the unit. The control section includes a 2-line
digital display, 4-button keypad, green AC on LED and a red alarm LED, an AC input circuit breaker, and
a DC output circuit breaker. An optional control board offers front panel LED indicators, showing the
status of the High Voltage Alarm, Low Voltage Alarm, No Charge Alarm and AC Fail Alarm on the
telecom models. For the utility models two additional LEDs show the state of the Positive and Negative
ground fault alarms.
Access to internal components for servicing by qualified personnel is through the door comprising the
front of the unit. The door is hinged on the left and secured on the right by two fasteners.

Micro ARE-M Series 24V Chargers, Single Phase Introduction
PM990-1070-24, Issue 12
1-2
MODEL DESIGNATION1.2
The nameplate on the charger contains an alphanumeric model number. The model number describes the
features built into a particular charger. Table 1-1 provides the product characteristic defined by each
character in the model number.
1.2.1 Options
Temperature Compensation...............Slopes adjusted from –0.1mV/cell/C to –10.0mv/cell/C
Lightning Arrester..............................AC input; prevents equipment damage due to a nearby lightning
strike
Fungicide Treatment..........................Applied to inside of charger
Drip Shield.........................................Prevents overhead drops from entering unit
SIS Control Wiring............................Excludes ribbon cable and power cables
High Interrupt DC Breakers...............10K AIC minimum
Engraved Nameplates ........................Contact UNIPOWER Applications Engineering
Blocking Diode..................................Prevents charger faults from shortening the battery plant
High Interrupt AC Breakers...............10K AIC minimum
MOVs.................................................On DC output, prevents equipment damage due to excessive
voltage transients
DNP3 Communications.....................Allows charger to be controlled and monitored from a remote
location using the DNP3 protocol. See manuals PM990.1074.00
(Installation guide) and PM990.1072.00 (Device Profile) on the
ARE-M webpage at www.unipowerco.com for more information.

Micro ARE-M Series 24V Chargers, Single Phase Introduction
PM990-1070-24, Issue 12
1-3
TABLE 1-1 MODEL DESIGNATION
DC VOLTAGE & CURRENT
ARE-M02406A (AC Input Voltage: 120V/208V/240V)
ARE-M02412A (AC Input Voltage: 120V/208V/240V)
ARE-M02425A (AC Input Voltage: 120V/208V/240V)
ARE-M02450A (AC Input Voltage: 120V/208V/240V/480V)
ARE-M024100A (AC Input Voltage: 120V/208V/240V/480V)
AC Input Voltage / Breaker
A120V - 60 Hz Standard Capacity AC Breaker
B208V - 60 Hz Standard Capacity AC Breaker
C240V - 60 Hz Standard Capacity AC Breaker
D480V - 60 Hz Standard Capacity AC Breaker (50 A & 100 A only)
1120V - 60 Hz High Capacity AC Breaker
2208V - 60 Hz High Capacity AC Breaker
3240V - 60 Hz High Capacity AC Breaker
4480V - 60 Hz High Capacity AC Breaker (50 A & 100 A only)
AC Protection
1Not Required (Standard)
2480/240 VAC Input Lightning Arrestor
3240/208/120 VAC Input Lightning Arrestor
DC Circuit Breaker
1Standard Capacity AC Breaker/ Standard Capacity DC Breaker
2Standard Capacity AC Breaker/ High Capacity DC Breaker
3Standard 480V AC Breaker/ Standard Capacity DC Breaker
4Standard 480V AC Breaker/ High Capacity DC Breaker
5High Capacity AC Breaker/ Standard Capacity DC Breaker
6High Capacity AC Breaker/ High Capacity DC Breaker
7High 480V AC Breaker/ Standard Capacity DC Breaker
8High 480V AC Breaker/ High Capacity DC Breaker
ATelecom Standard Capacity AC Breaker/ Standard Capacity DC Breaker
BTelecom Standard 480V AC Breaker/ Standard Capacity DC Breaker
CTelecom High Capacity AC Breaker/ Standard Capacity DC Breaker
DTelecom High 480V AC Breaker/ Standard Capacity DC Breaker
DC Protection
1None (Standard)
2MOVs
Blocking Diode
1None (Standard)
2Yes (Negative Leg)
Temperature Compensation
1None (Standard)
2Battery Temperature Compensation (Temperature Sensor with 25' lead)
Control Wiring
1Floating Ground (Standard) - PVC
2Floating Ground Switchboard - SIS
ATelecom - Positive Ground - PVC
BTelecom - Negitive Ground - PVC
Individual Alarm Relays
1Utility - AC Fail, High Voltage, Rectifier Fail
2Utility - AC Fail, High Voltage, Rectifier Fail, Hi VDC, Low VDC,
NO Charge, GND+, GND-, Summary
3Utility - AC Fail, High Voltage, Rectifier Fail, w/Ground Enable Switch
4Utility - AC Fail, High Voltage, Rectifier Fail, Hi VDC, Low VDC,
NO Charge, GND+, GND-, Summary, w/Ground Enable Switch
ATelecom - AC Fail, High Voltage, Rectifier Fail
BTelecom - AC Fail, High Voltage, Rectifier Fail, Hi VDC, Low VDC,
NO Charge, Summary
Control Board
1Utility (Standard)
(Discontinued)
2Utility Alarm Lights - AC, Summary Alarm, HVA, LNA, NCA, ACF, GND+, GND-
ATelecom (Standard)
(Discontinued)
BTelecom Alarm Lights - AC, Summary Alarm, HVA, LNA, NCA, ACF
Mounting
1Wall 19"
3Relay 19"
4Relay 23"
5Floor Mount
6Floor Mount with Drip Shield
Packaging
1Domestic (Standard)
2Export
3
None (For relay rack installation only)
DNP3 Communications Port
1No Port (Standard)
2DNP3 Ethernet 4 foot cable
3DNP3 Ethernet 2 foot cable
4DNP3 Ethernet 25 foot cable
5DNP3 Ethernet 50 foot cable
Special Instructions
1No
2Yes
ARE-M 2406 A 2 2 1121131111
Base Model
S Build Number

Micro ARE-M Series 24V Chargers, Single Phase Introduction
PM990-1070-24, Issue 12
1-4
SPECIFICATIONS1.3
This section provides the mechanical, electrical, and environmental specifications. The charger nameplate
is located on the front panel.
1.3.1 Mechanical
Cabinet....................................................NEMA1; steel with baked powder coat finish
Cable Entrances ......................................Three; see the dimension drawings in Chapter 2 Installation
Cabinet Dimension and Weight..............See the following table and dimension drawings in Chapter 2
Installation.
Model
Cabinet
Size
Height* Width*
Depth
Maximum*
Mounting
Depth**
Shipping
Weight*
ARE-M02406
ARE-M02412
ARE-M02425
12" 12.25
(311) 17 (432) 15 (381) 6 (152)
65 (30)
75(33)
102 (46)
ARE-M02450
ARE-M24100 24" 24.5 (622) 17 (432) 15 (381) 6 (152) 162 (74) 216 (98)
*Cabinet dimension in inches (mm). Does not include mounting brackets or drip shield. Weight in
lbs. (kg).
** Dimension from cabinet front to installed rack mounting angle brackets.
Mounting Locations...........................Wall, relay rack, or floor
Select a location for the charger. The chargers are cooled by natural convection and require at least 3"
(76mm) of space below the charger and 3" above the charger.
Mounting Brackets
Supplied........................................Wall mount and standard relay rack mount
Optional........................................Larger relay rack mount or floor mount
Internal Combustible Materials .........94V-1 or better

Micro ARE-M Series 24V Chargers, Single Phase Introduction
PM990-1070-24, Issue 12
1-5
1.3.2 Electrical
Model Specific and Related Specifications
Refer to the equipment nameplate for the model number of the Micro ARE-M at hand.
ARE-M02406
DC Output Voltage and Current.............26.4V@ 6A
Ripple
On Battery .........................................NA
Off Battery.........................................30 mV rms
No. Cells, L-A.........................................12
Recommended DC Cable .......................14 AWG (2.1 mm2)
Terminal Block Capacity........................24-12 AWG (.21-5.3 mm2)
DC Circuit Breaker.................................10A
AC Input Voltage and Current................120V @ 2A, Single Phase
208V @ 1.1A, Single Phase
240V @ 1A, Single Phase
AC Frequency.........................................57-63 Hz
AC Breaker Interrupt Current.................2,000A @ 240V (5,000A @ 125V or with a 125A series fuse)
AC Breaker Interrupt High Capacity......10,000A
Heat Dissipation......................................200 BTU/Hour
ARE-M02412
DC Output Voltage and Current.............26.4V @ 12A
Ripple
On Battery .........................................NA
Off Battery.........................................30 mV rms
No. Cells, L-A.........................................12
Recommended DC Cable .......................12 AWG (3.3 mm2)
Terminal Block Capacity........................24-12 AWG (.21-3.3 mm2)
DC Circuit Breaker.................................20A
AC Input Voltage and Current................120V @ 4A, Single Phase
208V @ 2.3A, Single Phase
240V @ 2A, Single Phase
AC Frequency.........................................57-63 Hz
AC Breaker Interrupt Current.................2,000A @ 240V (5,000A @ 125V or with a 125A series fuse)
AC Breaker Interrupt High Capacity......10,000A
Heat Dissipation......................................440 BTU/Hour
ARE-M02425
DC Output Voltage and Current.............26.4V @ 25A
Ripple
On Battery .........................................NA
Off Battery.........................................30 mV rms
No. Cells, L-A.........................................12
Recommended DC Cable .......................8 AWG (8.4 mm2)
Terminal Block Capacity........................14 - 10 AWG (2.1 to 5.3 mm2)
DC Circuit Breaker.................................35A
AC Input Voltage and Current................120V @ 8.3A, Single Phase
208V @ 4.7A, Single Phase
240V @ 4.1A, Single Phase
AC Frequency.........................................57-63 Hz

Micro ARE-M Series 24V Chargers, Single Phase Introduction
PM990-1070-24, Issue 12
1-6
AC Breaker Interrupt Current.................2,000A @ 240V (5,000A @ 125V or with a 125A series fuse)
AC Breaker Interrupt High Capacity......10,000A
Heat Dissipation......................................660 BTU/Hour
ARE-M02450
DC Output Voltage and Current.............26.4V @ 50A
Ripple
On Battery .........................................NA
Off Battery.........................................30 mV rms
No. Cells, L-A.........................................12
Recommended DC Cable .......................4 AWG (21.1 mm2)
Terminal Block Capacity........................14-2/0 AWG (2.1 to 67.4 mm2)
DC Circuit Breaker.................................70A
AC Input Voltage and Current................120V @ 16A, Single Phase
208V @ 9A, Single Phase
240V @ 8A, Single Phase
480V @ 4A, Single Phase
AC Frequency.........................................57-63 Hz
AC Breaker Interrupt Current.................2,000A @ 240V (5,000A @ 125V or with a 125A series fuse)
5,000A @ 480V
AC Breaker Interrupt High Capacity......10,000A except 18,000 @ 480Vac
Heat Dissipation......................................1150 BTU/Hour
ARE-M024100
DC Output Voltage and Current.............26.4V @ 100A
Ripple
On Battery .........................................NA
Off Battery.........................................30 mV rms
No. Cells, L-A.........................................12
Recommended DC Cable .......................1 AWG (42.4 mm2)
Terminal Block Capacity........................14-2/0 AWG (2.1 to 67.4 mm2)
DC Circuit Breaker.................................125A
AC Input Voltage and Current................120V @ 33A, Single Phase
208V @ 19A, Single Phase
240V @ 16A, Single Phase
480V @ 8A, Single Phase
AC Frequency.........................................57-63 Hz
AC Breaker Interrupt Current.................2,000A @ 240V (5,000A @ 125V or with a 125A series fuse)
5,000A @ 480V
AC Breaker Interrupt High Capacity......10,000A except 18,000 @ 480Vac
Heat Dissipation......................................2390 BTU/Hour
*Battery: A fully charged battery that has an ampere-hour capacity numerically equal to four times the
rated output current of the charger.

Micro ARE-M Series 24V Chargers, Single Phase Introduction
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General
AC Voltage Range.............................The AC supply voltage specified in Model Specific and Related
Specifications must be within the following ranges:
Nominal Voltage
Minimum Voltage
Maximum Voltage
120 Vac
106 Vac
132 Vac
208 Vac
184 Vac
228 Vac
240 Vac
212 Vac
264 Vac
480 Vac
424 Vac
528 Vac
Power Factor (Resistive Load) ..........>0.92 at full load
Efficiency (Resistive Load)...............>87%
DC Regulation
Static
Float.........................................±0.5% with a fixed load and simultaneous variations1
Equalize...................................±1.0% with a fixed load and simultaneous variations1
Dynamic .......................................±6% for a step load change of 10 to 90% or 90 to 10% of rated
current; Charger will recover to regulation range within 300
milliseconds; transient behavior will disappear within 500
milliseconds.
Current Limiting
Factory Setting...........................110% of full rated load
Field Settable .............................80-110% of full rated load
Continuous Operation................110% of full rated load maximum
Surge Protection.................................Optional MOVs (metal-oxide varistors) on output terminals
Optional Lightning arrestor on input terminals
Current Walk-In (Soft Start)..............Less than 15 seconds for output current increase from 0-100%
Alarms
Standard Interface Board...................3 alarm relay outputs: AC Fail, Rectifier Fail, and HVSD
Multiple Alarm Interface Board ........9 alarm relay outputs: Summary, GND+, GND-, LVA, HVA,
NCA, AC Fail, Rectifier Fail, and HVSD
Alarm Indicators
Front Panel.................................Common red alarm LED and 2-Line LCD display
Optional Indicators.....................Optional front panel indicators, consisting of a red High Voltage
LED, red Low Voltage LED, red No Charger LED, yellow AC
Fail LED on the telecom models, and two additional green
Positive and Negative Ground LEDs on the utility models.
Alarm Relay Contacts................Form C, 2A @ 30 Vdc; 0.6A @ 110 Vdc; 0.6A @ 125 Vac
Customer Connections
Connector...................................One plug-in 3-position terminal block per alarm, compression-
style wire clamp
Wire Size....................................12-28 AWG (2.5-0.08 mm2)
1Load, input voltage, frequency, and temperature varied within range for that model. The Float and Equalize voltage regulation
excludes any voltage drop from the blocking diode, if present.

Micro ARE-M Series 24V Chargers, Single Phase Introduction
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1.3.3 Front Panel Displays and Controls
Display...............................................LCD, 2 lines x 20 characters, with green LED backlight
Display Accuracy...............................1% (voltage, current, or time reading)
Control Modes...................................Manual float/equalize, user selectable from keypad
LED Indication Standard...................Alarm - red; AC power - green
LED Indication Optional ...................HVA, LVA, NCA-red, ACF-yellow, +GND,-GND-green
High Voltage Shutdown
Adjustable.....................................2.00-2.53 Vpc (Volts per cell), LED indicator; see table below;
1-30 Sec delay
Fixed Redundant...........................2.66 +/-0.08 Vpc
Float/Equalize....................................State indicated; Equalize remaining time shown
Load Share Active .............................Chargers operating in parallel with +/-5% of rated output over
10% to 100% of current threshold
Ground Detection
Disconnect Switch (optional) .......Breaks the connection to the chassis (earth) for troubleshooting
grounds on the dc system or to eliminate interaction with an
external ground detection system
Relay/Lamp Test................................Provided in setup routine (password protection available)
Control Adjustments (password protection available)
Float Voltage................................1.85-2.35 Vpc (Volts per cell); see table below
Equalize Voltage ..........................2.0 -2.45 Vpc; see table below
Manual Equalize...........................On, Off, Equalize Duration (1-255 hours)
Auto-Equalize
After AC Fail...........................On, Off, Equalize After (1-7200 minutes), Equalize Duration (1-
255 hours)
Periodic ...................................On, Off, Equalize Duration (1-255 hours)
Current Limit................................80-110% of charger rating
Periodic Equalize..........................Off, 168-8760 hours
Temp Comp…………………….. 0.1-10 mV/cell/°C
TABLE 1-2 SETTABLE PARAMETERS, STANDARD MODELS
Model
Float Range
Equalize Range
HVSD Range
ARE-M24 Series
22.2-28.2V
Float-29.4V
24-30.4V
Alarm Adjustments (password protection available)
Low Voltage (LVA) ........................... 1.50-2.20 Vpc; alarm delay 1-300 seconds
Very Low Voltage (VLVA) ............... 1.50-2.20 Vpc; alarm delay 1-300 seconds
High Voltage (HVA).......................... 2.20-2.50 Vpc; alarm delay 1-300 seconds
No Current.......................................... Up to 30% of rated current; alarm delay 1-300 seconds
Positive Ground Fault......................... 500-20,000 Ohms; 1-300 seconds delay
Negative Ground Fault....................... 500-20,000 Ohms; 1-300 seconds delay
Charger Fail........................................ 1-300 seconds delay
AC Power Fail.................................... 1-300 seconds delay; relay delay fixed at 0.5 seconds
High Battery Temperature (HBTA) ... 0-200 °C; 1-300 seconds delay
Summary............................................. 0-300 seconds delay
Password Protection................................. Yes, control and alarm settings; 00001-65500
NOTE: All "per cell" voltages are based upon the unit's nominal number of lead-acid cells.

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1.3.4 Environmental
Charger Cooling....................................... Natural Convection
Temperature, Operating........................... 0°C to +50°C (32°F to +122°F); see Altitude
Temperature, Storage............................... –40°C to +85°C (–40°F to +185°F)
Storage Duration...................................... One year at specified storage temperature range
Relative Humidity.................................... 0 to 95% non-condensing
Altitude
Operating............................................ 3,300 ft. (1000 meters)
Derate ................................................ 2°C (3.6°F) for each 990 ft. (300m) over 3300 ft. (1000m)
above sea level
Audible Noise.......................................... <65 dBA measured 5 feet (1.7m) from cabinet vertical
surface
ABBREVIATIONS AND ACRONYMS1.4
Listed here are many of the abbreviations and acronyms that may appear in this manual.
Abbreviation, Acronym Or Symbol
Meaning
ANSI
American National Standards Institute
AWG
American wire gauge
BATT
Battery
CL
current limit
CM
circular mils
EMI
electromagnetic interference
EQ
equalization
ESD
electrostatic discharge
FL
float
HVA
normally energized high voltage alarm
HVSD
high voltage shutdown
NCA (LCA)
No (low) current alarm
LED
light emitting diode
LSD
least significant digit
LVA
low voltage alarm
LVD
low voltage disconnect
NEC
National Electric Code
NEMA
National Electrical Manufacturers Association
PCB
printed circuit board
RFA
rectifier failure alarm
UL
Underwriters Laboratory
Vpc
Volts/Cell

Micro ARE-M Series 24V Chargers, Single Phase Introduction
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PRODUCT SUPPORT1.5
Product support can be obtained using the following addresses and telephone numbers.
UNIPOWER, LLC
3900 Coral Ridge Drive
Coral Springs, FL 33065
Phone: [phone]
Toll Free: 1-800-440-3504
Web site – http://www.unipowerco.com
When contacting UNIPOWER, please be prepared to provide:
1. The charger model number, spec number, S build number, and serial number - see the equipment
nameplate on the front panel
2. Your company’s name and address
3. Your name and title
4. The reason for the contact
5. If there is a problem with charger operation:
•Is the problem intermittent or continuous?
•What revision is the firmware?
•What actions were being performed prior to the appearance of the problem?
•What actions have been taken since the problem occurred?

Micro ARE-M Series 24V Chargers, Single Phase Installation
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2.0 INSTALLATION
This chapter describes installing Micro ARE Series 24V Chargers. To contact a UNIPOWER field service
technician for assistance, refer to Section 1.5 Product Support.
The charger is fully assembled and tested at the factory. Refer to the Front Matter and Section 2.3
Unpacking for receiving and unpacking instructions and for instructions on moving the equipment to the
installation site.
These chargers can be mounted to a wall, in a relay rack, or on a floor. All are furnished with brackets for
standard wall or relay rack mounting. Optional floor mounting brackets and extra-wide brackets for wide
relay racks are available. Cabinet dimensions and weights are provided in the Specifications section.
Conduit knockouts are located in the cabinet top for AC input cables, DC output cables and alarm wiring.
Cables and wires are supplied by the user.
WARNING
Electrical shock hazard
Hazardous voltage can cause death or serious
injury.
Remove power from all wires and terminals
before working on equipment.
AVERTISSEMENT
Risque de choc électrique
Les tensions dangereuses peuvent causer la mort
ou des blessures graves.
Coupez l'alimentation de tous les fils et les bornes
avant de travailler sur les équipements.
IMPORTANT: The installation must conform to the National Electrical Code and other applicable
industry and local codes.
INSTALLATION SUMMARY2.1
A typical installation sequence is provided below. References to appropriate sections in this manual are
included.
1. Review the list of user-supplied tools and accessories in Section 2.2 Reference Material. This section
also contains a table and a procedure for determining battery and distribution cable sizes based on
current load and length of run. Refer to the National Electrical Code and other applicable codes to
determine AC cable size.
2. Select a location for the charger. The chargers are cooled by natural convection and require at least 3"
(76mm) of space below the charger and 3" above the charger. The charger must be mounted over a
non-combustible surface. See Section 2.3 Mechanical Installation.
3. Move the charger to the selected location. See Section 2.3.
4. As appropriate, install charger mounting brackets for a wall, relay rack, or floor. Fasten the charger to
the selected mounting surface or rack.
5. Install a user-supplied electrical service panel (as needed) for powering the charger. See Section 2.4
Electrical Installation. Install AC input conduit and wiring between the user’s AC electrical service
panel and the charger.
6. Install battery cabling. Route cabling through overhead cable racks between the battery string and the
charger DC output terminals.
7. Install customer load supply and return cabling. Connect the cabling to the battery string or directly to
the charger, if a battery string is not to be connected to the charger. If the customer load is connected
to the battery string, install a circuit breaker or fuse in-line with the cabling.

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8. Connect user-supplied external alarm annunciators.
9. Commission the charger. See Chapter 3.
10. Set LVA, HVA, HVSD, float voltage, equalization, etc. as needed to satisfy installation requirements.
Test and verify charger setup and operation. See Chapter 4 Setup and Operation.
REFERENCE MATERIAL2.2
This section contains lists, tables, and methods that are referenced in subsequent procedures. Three
subsections comprise the Reference Material section.
•Tools and Accessories – Read the included list for a preview of the user-supplied items that will be
referenced during the installation and servicing procedures.
•Selecting and Sizing DC Power Cables – Proper cable sizing is critical to system performance. This
section provides a formula and table that simplify cable selection.
•Torque Specifications – The torque specification table in this subsection is referenced in procedures
that include hardware.
2.2.1 Tools and Accessories
To install the charger, the following user-supplied items should be available.
•Equipment and personnel to safely transport the charger to the installation site
•Mounting brackets and related hardware to securely mount the charger
•Overhead wire racks for AC power and distribution cabling
•Standard insulated installation tools (e.g. socket set, cable cutters, cable insulation strippers)
•Torque wrench to ensure correct tightening of hardware; see Table 2-2 for torque specifications
•User-supplied AC electrical service panel with a circuit breaker for the AC feed to the charger
•Digital Voltmeter with: 4-1/2 digit display, 1/2% accuracy, and 10M ohms input impedance
•Cables and lugs; appropriate crimping tools
•Conduit, conduit connectors, and conduit bending tools
•Anti-Static Service Kit with static dissipative mat and wrist strap for handling electronic circuit
boards (e.g. Control and Display Board, User Interface Board)