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.