Multilink EDP Series User manual

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Copyright © 2019 Multilink Inc. All rights reserved • Specifications subject to change without notice • Rev. 5/10/2019 •
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Document No. 010-028-A0
Page 1
EDP Double Conversion UPS
1. Critical Safety Issues 4
Safety Admonishments
Emergency Shutdown Procedure
General Safety Issues
Safety Issues of Power Supply Installation and Use
Enclosure Safety Issues
Battery Safety Issues
2. Introduction 8
EDP Double Conversion UPS Product Overview and Features
Unpacking and Inspection
Missing or Damaged Items
Original Shipping Container
Other Items
3. Front Panel Controls, Connections and Indicators 10
Controls
Connections
Indicators
4. Installation and Setup 12
Preparation
Grounding
Placement in the Enclosure
Wiring
Battery Placement and Installation
5. Startup & Operation 19
Operation Instructions
Front Panel LCD Menus
6. Ethernet Communication 24
Connection Setup
Web Page Descriptions
7. Power Supply Shutdown 34
8. Options 34
Battery Cable Kits, Accessories, and Heater Mats
Transfer Switch Options
Table of Contents

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INSTALLATION
Copyright © 2019 Multilink Inc. All rights reserved • Specifications subject to change without notice • Rev. 5/10/2019 •
Page 2
Document No. 010-028-A0
Table of Contents (Cont.)
Grounding Kits and Additional Parts
9. Maintenance and Adjustments 35
Preventive Maintenance
Troubleshooting
10. Specications 36
Parameter Specications and Notes

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2
Documented Power Supply Models
The following uninterruptible power supply models, with their part numbers, are documented by this instruction
manual. These power supply and their respective packages may be references using the part numbers listed
below.
MODEL NUMBERS PART NUMBERS INPUTS OPTIONS
1000 VA POWER RATING
EDP-1000 120/60/24 UPS 010-028-20 120 VAC 60Hz / 24V Battery See Specifications
EDP-1000 UPS Package 026-076-20 120 VAC 60Hz / 24V Battery Turnkey Package
1500 VA POWER RATING
EDP-1500 120/60/36 UPS 010-029-20 120 VAC 60Hz / 36V Battery See Specifications
EDP-1500 UPS Package 026-077-20 120 VAC 60Hz / 36V Battery Turnkey Package
2000 VA POWER RATING
EDP-2000 120/60/48 UPS 010-030-20 120 VAC 60Hz / 48V Battery See Specifications
EDP-2000 UPS Package 026-078-20 120 VAC 60Hz / 48V Battery Turnkey Package

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4
Section 1: Critical Safety Issues
SAFETY ADMONISHMENTS:
Three different levels of safety admonishments are used within this instruction manual; specifically DANGER,
WARNING, and CAUTION.
Trois niveaux différents d'avertissements de sécurité sont utilisés dans ce mode d'emploi; spécifiquement DANGER,
AVERTISSEMENT et ATTENTION.
DANGER
The statement following the DANGER heading alerts the equipment user of a potentially life or health-threatening
situation unless precautions are taken against it. Admonishments of this nature usually entail the hazards of electrical
shock or those encountered that may result in physical injury.
La déclaration sous la rubrique DANGER avertit l'utilisateur de l'équipement d'une situation potentiellement mor-
telle ou mortelle, sauf si des précautions sont prises contre lui. Les admonistances de cette nature entraînent habituel-
lement les dangers d'un choc électrique ou ceux rencontrés qui peuvent entraîner des blessures physiques.
WARNING /AVERTISSEMENT
The statement following the WARNING heading alerts the equipment user of a condition or procedure that could
result in interruption of service to the users or subscribers of the service receiving power from this product.
La déclaration sous le chapitre AVERTISSEMENT avertit l'utilisateur de l'équipement d'une condition ou d'une
procédure qui pourrait entraîner une interruption de service pour les utilisateurs ou les abonnés du service qui reçoit
l'alimentation de ce produit.
CAUTION / ATTENTION
The statement following the CAUTION heading alerts the equipment user of a condition that could result in damage
to the subject equipment or ancillary equipment if care is not exercised during certain maintenance or operating
procedures.
La déclaration suivant la rubrique ATTENTION avertit l'utilisateur de l'équipement d'une condition qui pourrait
endommager l'équipement concerné ou l'équipement auxiliaire si les soins ne sont pas exercés pendant certaines pro-
cédures de maintenance ou d'exploitation.
EMI / RFI STATEMENT:
This device has been designed and manufactured to comply with the EMI / RFI emission limits and immunity
characteristics as set forth in Standards EN 55022 and EN 55024. These limits are designed to provide reasonable
protection against harmful interference when this equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed in accordance with this
instruction manual, may cause harmful interference to radio communications.

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5
Emergency Shutdown Procedure
DANGER
Exercise extreme caution when performing the following procedure. Carry out the steps precisely
in the order given to avoid the possibility of personal injury or equipment damage.
Faites preuve d'une extrême prudence lors de l'exécution de la procédure suivante. Effectuez les
étapes précisément dans l'ordre indiqué pour éviter la possibilité de blessures ou de dommages
matériels.
Perform the following procedure if the power supply must be shut down and disconnected on an emergency basis:
1. Open the Input circuit breaker.
2. Disconnect the Battery harness from its receptacle on the front panel of the UPS.
3. Remove the circular Power connector from the front of the UPS.
4. If a Safety Automatic Transfer Switch or Standard Transfer Switch is in use, open the AC Utility Input
breaker and disconnect the Generator from its outside cabinet generator connector to complete shutdown of
power to the load.
General Safety Issues:
The EDP Double Conversion Uninterruptible Power Supply documented in these instructions has been designed,
tested and produced to ensure safe, trouble-free operation. Personnel using or installing this power supply should
completely read and fully understand the following safety instructions. They are provided here as informational
guidelines for your continued safety in usage of the product.
Safety Issues of Power Supply Installation and Use:
The UPS has been designed and built to power Department of Transportation and Intelligent Traffic Systems
equipment only. It is not intended for any other usage and provides output voltages suitable only for its intended
application.
DANGER
This power supply operates from an AC source ranging from 55 to 155 volts and produces internal voltages in
excess of 400 volts. DO NOT open any covers or panels or attempt to perform any service to the power supply
without first removing and disconnecting all external AC and DC power sources. Only trained, qualified
personnel should attempt service and repair work on the power supply.
Cette alimentation fonctionne à partir d'une source CA allant de 55 à 155 volts et produit des tensions internes
supérieures à 400 volts. N'OUVREZ PAS de couvercles ou de panneaux ou n'essayez pas d'effectuer un service
quelconque à l'alimentation électrique sans d'abord retirer et débrancher toutes les sources d'alimentation CA
et CC externs. Seul du personnel formé et qualifié doit effectuer des travaux d'entretien et de réparation sur
l'alimentation électrique.

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Two Power Sources:
All power supplies documented in this instruction manual use more than one source of power. If any reason exists to
open the power supply enclosure for maintenance or adjustments, first disconnect the Battery Harness from its
receptacle and open the AC Input circuit breaker on the front panel. Internal DC circuits will retain harmful electrical
charge after disconnecting both power sources from the UPS. Only trained personnel should be permitted to handle
this UPS.
Ground Fault Protection:
The power supply does not contain integral ground fault protection. Where such protection is required, the power
supply input should be connected to a ground fault interrupter (GFI) outlet or to a branch circuit protected by a GFI
circuit breaker of proper ratings.
Enclosure Safety Issues:
The enclosure and the power supply must be installed by qualified technicians or installers only, using appropriate
mounting hardware in accordance with local codes and construction practices.
The power supply must be installed within a NEMA 3R or grounded metal enclosure suitable for accommodating
DOT/ITS power supplies.
The outer enclosure housing the power supply must be of adequate strength to support the power supply and its
associated batteries. Additionally, the enclosure must afford adequate ventilation for the power supply such that a
minimum free air space of 52 mm (2 inches) remains around all sides and the top of the power supply.
Temperature of the air flowing around the power supply may be rated up to 74° C (165° F). Air intake and exhaust
openings within the enclosure must not be less than what is required to maintain this temperature requirement. If these
temperature limits are routinely exceeded or ventilation requirements cannot be attained, a suitable forced-air cooling
system may be required within the enclosure.
Battery Safety Issues:
When choosing a battery type (gelled electrolyte or AGM) for installation, it is not recommended mixing different
types of batteries in the same string. DO NOT use flooded type batteries containing liquid electrolyte under any
circumstances. Such batteries are hazardous to use within DOT/ITS enclosures and can degrade or destroy equipment
installed in the enclosure with them. Flooded batteries also pose environmental hazards when acid containment
methods cannot be employed. Use only gelled electrolyte or AGM batteries of suitable size, voltage and capacity for
use in a DOT/ITS system.
DANGER
Batteries can supply extremely large currents (>4000 amps) for a short period of time, sufficient to
vaporize or melt metal objects. For this reason, installers must remove watches, rings and other jewelry
before placing or connecting batteries in the cabinet. Insulating gloves and protective clothing should be
worn during battery installation, consistent with local practices. Use only fully insulated tools designed for
battery maintenance.
Les batteries peuvent fournir des courants extrêmement importants (> 4000 ampères) pendant une courte
période, suffisant pour vaporiser ou faire fondre des objets métalliques. Pour cette raison, les installateurs
doivent enlever les montres, bagues et autres bijoux avant de placer ou de connecter les piles dans le cabi-
net. Des gants isolants et des vêtements de protection devraient être portés pendant l'installation de la bat-
terie, conformément aux pratiques locales. Utilisez uniquement des outils entièrement isolés conçus pour
l'entretien de la batterie.

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CAUTION / ATTENTION
a. CAUTION: Risk of energy hazard, 12 V, 100 Ampere-hour (watt or kilowatt) batteries. Before replacing
batteries, remove conductive jewelry such as chains, wrist watches, and rings. High energy through conductive
materials could cause severe burns.
b. CAUTION: Do not dispose of batteries in a fire. The batteries may explode.
c. CAUTION: Do not open or mutilate batteries. Released material is harmful to the skin and eyes. It may be
toxic.
a. ATTENTION: Risque d'énergie, batteries 12 V, 100 Ampères-heures (watts ou kilowatts). Avant de
remplacer les piles, retirez les bijoux conducteurs tels que les chaînes, les montres-bracelets et les bagues. Une
énergie élevée à travers les matériaux conducteurs pourrait causer de graves brûlures.
b. ATTENTION: Ne jetez pas les piles dans un feu. Les piles peuvent exploser.
c. ATTENTION: N'ouvrez pas et ne mutilez pas les piles. Le matériau libéré est nocif pour la peau et les yeux.
Cela peut être toxique.
Batteries contain Sulfuric acid in gelled or semi-liquid form. Direct contact with any spilled electrolyte from a
damaged battery may result in skin irritation or chemical burns. For this reason, handle batteries carefully to avoid
puncturing the case and releasing any of the electrolytes. Replace any battery that is found to have a swollen or
cracked case. Always recycle used batteries to reclaim lead and other materials that can pose environmental hazards if
disposed of improperly.
In case of contact with the electrolyte, thoroughly wash any contaminated areas of the skin with soap and water. In
case of contact with the eyes, immediately flush with copious amounts of water and seek medical attention. Minor
surface spills can be neutralized with an appropriate neutralizing agent such as bicarbonate of soda (baking soda).
Always use proper lifting techniques when handling batteries. Each 12-volt battery weighs approximately 30 Kg or
66 lbs.
Personnel installing or servicing batteries must wear eye protection (goggles or full face shield) and protective
clothing (apron and gloves) if necessary, according to local practices. Additionally, only fully insulated tools
specifically designed for battery installation and service should be used for that purpose. Tools wrapped with vinyl or
fabric-based electrical tapes are NOT acceptable substitutes. (Insulated wrenches complying with IEC 60900 and
ASTM F-1505 Standards1are distributed by various industrial supply organizations.)
The Battery harness MUST be removed from the receptacle on the front of the power supply before installing,
changing, and/or connecting batteries.
Verify correct battery polarity and voltage at the Battery harness connector before connecting the Battery harness.
Applying DC input of improper polarity or voltage can seriously damage or destroy the power supply.
SAVE THESE INSTRUCTIONS
This manual contains important instructions that should be followed during installation and maintenance of all models of
the EDP Double Conversion UPS series.
1IEC 60900: Live Working –Hand Tools for Use Up to 1000VAC and 1500VDC
ASTM F-1505: Standard Specification for Insulated & Insulating Hand Tools

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Document No. 010-028-A0
8
Section 2: Introduction
Overall Operation:
The EDP Double Conversion UPS series of power supplies provides filtered and regulated AC output power to operate
traffic signals, conflict monitors, camera equipment, lighting, and additional applications used in Departments of
Transportation and Intelligent Traffic Systems (DOT/ITS). These power supplies are designed to normally power an
intersection or highway system from the commercial AC utility line while maintaining an emergency battery in a state
of full charge. If the commercial AC line fails for any reason or if line voltage exceeds preset low or high limits, the
low voltage inverter within the power supply continues to provide power to the intersection or highway system load
while drawing its operating power from the battery string. After AC utility line power has been restored, the power
supply will revert to Double Conversion operation, supplying power to the intersection or highway system while
drawing operational power from the commercial AC utility line and simultaneously recharging the battery string. The
power supply will continue providing filtered and regulated AC power to the intersection or highway system load with
zero loss of output power during outages, brownouts, or spikes.
Primary Voltage:
The EDP Double Conversion series of power supplies have been designed for operation from standard AC utility lines
with an overall voltage range of 55 to 155 volts for nominal 120VAC/60Hz models. UPS output frequency is matched
with the AC input frequency. The wide input voltage range is load dependant. Please see Specifications for output load
requirements regarding input voltage range.
Inverter Operation:
The EDP Double Conversion UPS series provides uninterruptible power in the event of line voltage brownout, spike,
or failure. During these events, the inverter draws power from the battery string and provides regulated output voltage
to the load. The point at which the UPS switches to battery power is load dependant. A UPS with greater than 70%
load and line voltage less than 96V will switch to inverter operation after 1 minute during brownout conditions and
immediately switch to inverter during spikes and line failures. When input voltage returns within operating range, the
UPS will automatically return to Double Conversion operation. Please see Specifications for Acceptance and Detect
voltages.
Output Over-current Monitoring:
The output of the EDP Double Conversion UPS series provides three preset current limiting functions that will
disconnect the inverter in the event of overload and short circuit of the output. Over-currents not exceeding 110% of
the model rated output current will provide 10 minutes of runtime until the inverter is disconnected. At 150% of
overload, the UPS will provide 10 second power intervals at which time the UPS will automatically attempt to
provide power to the load until the over-current condition is removed. This condition will test the overload every 45
seconds. Short circuit conditions rating at 200% of the model rated output current will disconnect the inverter within
50ms of detection until the short circuit is no longer detected. These features are self-correcting upon removal of
overload or short circuit.
Bypass Mode:
In the event that the output is overloaded for an extended period of time while in Line Mode, the UPS will enter a
Bypass state. The inverter will be bypassed and the output powered directly from line voltage. This feature is self-
correcting upon removal of the overload and the inverter will begin to operate, providing filtered and regulated output
voltage.

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Status Monitoring Interface:
The EDP Double Conversion UPS series is factory equipped with Ethernet connectivity, providing status information
regarding operation, alarm reporting, event notification via email and SNMP, and on-board web page for configura-
tion and local monitoring of UPS operation. Ethernet communication is TCP/IP ready and supports SNMP, SMTP,
SNTMP, and HTTP protocols.
EDP Double Conversion UPS Features:
•All models have 120VAC/60Hz output.
•Ethernet status monitoring standard.
•High efficiency for economical line operation and longer run time from battery input.
•Pure Sine Wave output.
•Liquid Crystal Display (LCD) for local visual monitoring.
•Input power factor, typically 0.7 or better (line mode).
•Temperature compensated battery charger with battery temperature sensor.
•Robust rectifier/charger and inverter circuits.
•PWM controlled forced-air cooling.
•Certified UPS product per IEC Standard 60950-1.
•Complies with EMI/RFI limits of Standards EN 55022 and EN 55024.
Unpacking and Inspection:
Before installing this equipment, inspect the power supply for shipping damage or missing components. If the power
supply or other items were damaged in shipment, file a damage claim with the shipping company and contact your
Multilink representative immediately. Be sure to retain the original shipping carton and all packing material for the
power supply until you are certain that a warranty return will not be required.
All EDP Double Conversion power supplies include:
1 Power supply, ready for installation in cabinet
1 Power harness
1 Battery temperature sensor cable
2 Relay and Timer connectors
1 Installation and Operations guide
Missing or Damaged Items:
If items are found to be damaged or missing, contact the shipping company and your Multilink representative
immediately. All damage claims must be filed with the shipping company conveying your equipment. Your Multilink
representative will be able to assist with immediate equipment needs, if necessary.
Original Shipping Container:
When returning a unit for service, use its original shipping container and all original packing materials. Items
damaged as a result of improper packaging will not be covered under provisions of warranty service.
Other Items:
If you ordered other items such as batteries and cable kits for use with the power supply, ensure also that those items
did not sustain shipping damage. As with the power supply itself, all damage claims must be filed with the shipping
company and your Multilink representative should be contacted immediately.

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10
Section 3: Front
Panel Connections, Controls, and Indicators
The front panel of each EDP Double Conversion UPS contains various connectors, controls, and indicators. These items
are described as follows. See figure 3-1 and 4-1 for connector locations. Further details regarding use of controls and
indicators may be found in the Startup and Operation section of this manual.
Controls:
INPUT CIRCUIT BREAKER: 30-amp circuit breaker protects input circuitry and wiring. This circuit breaker is
also used as an AC switch to apply and remove input power to the power supply. Input breaker is marked “ON”and
“OFF”for clarity.
Connections:
POWER CONNECTOR: The power supply contains a single Power connector located in the upper middle of the
front panel. The mating CPC Series 3®2 circular plastic connector provides the means for connecting both input and
output power to the appropriate power terminal block buses in the cabinet. The Power connector contains four
conductors. Black represents utility line Hot. White represents Neutral. Red represents Output Hot. Green represents
Ground. The internal Input and Output circuits share the Neutral return path and Ground conductors.
BATTERY INPUT: Anderson®2-type connector: used for connecting the external battery string to the power supply.
BATTERY TEMPERATURE PROBE: RJ-11 connector: provides connection the external temperature probe for
temperature compensated battery charging.
RELAY / TIMER CONNECTORS: On Shore Tech OSTTJ®3 9 pin terminal blocks: allows for external alarm
reporting to a conflict monitor for the five, dedicated dry contact alarm relays. Each relay has a set of three pins.
NOTE: The first three pins from the left are unmarked and reserved for future use.
Pin 1 is Normally Open (NO). Pin 2 is Common (C). Pin 3 is Normally Closed (NC).
ETHERNET COMMUNICATION PORT: RJ-45 connector: provides connection to DOT/ITS network interface.
Fig. 3-1 Power Supply Front Panel Detail
2CPC Series 3 is a registered trademark of TE Connectivity Ltd, Berwyn, PA
3
OSTTJ is a registered trademark of On Shore Technology Inc, Tempe, AZ
FRONT PANEL DISPLAY
WITH BUTTONS
POWER
CONNECTOR
BATTERY
INPUT
CONNECTOR
DUPLEX
OUTLET
INPUT
BREAKER
TEMPERATURE
PROBE PORT
DEDICATED RELAY
CONTACTS AND
ETHERNET PORT

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Indicators:
Liquid Crystal Display (LCD): The LCD display on the front panel of the power supply serves as the main visual
communication device so the user can view a number of operational conditions of the power supply at any time
desired. Four buttons associated with the LCD display provide a means for the user to navigate the individual screens.
Further description of the menu tree may be found in the Startup and Operation section of this manual.
LEDs: Four green light emitting diodes (LEDs) on the central area of the front panel provide visual indication of
power supply operational status. The operations of the LEDs are as follows:
STATUS LED FUN-
TIONS OFF ON SLOW BLINK (0.5 Hz)
OUTPUT STATUS
No Output / Output
voltage is below 50%
of the rated specifica-
tion
Normal / Output volt-
age is within rated
specifications
Low Output / Output
voltage is less than the
rated specification
BATTERY STATUS
Low Battery / Battery
string voltage below
1.75V/Cell
Normal / Battery
Voltage at the
FLOAT voltage
(>2.24V/Cell)
Low battery cutoff
INVERTER STATUS
Inverter OFF / Bypass
Mode due to over-cur-
rent
Normal / Inverter
ON/Line voltage
good
Line voltage low/In-
verter running output
UPS ALARM/FAULT Normal / No Alarms or
Faults to report
Alarm or Fault Pre-
sent Investigate and
correct alarm or fault
N/A
Fig. 3-2 Front Panel LED Functions

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Document No. 010-028-A0
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Section 4: Installation and Setup
Installing and wiring any model within the EDP Double Conversion series of power supplies into an enclosure may be
accomplished by connecting input and output wiring to the appropriate connectors of the power supply. The four
conductors of the circular Power connector are to be used to connect the UPS to the cabinet’s internal Utility Line and
Load terminal block buses. If used with a mating transfer switch, the circular harness attached to the transfer switch is to
be used to provide power to the UPS and points of connection for AC power and load. All other connectors on the front
panels of the UPS mate with industry-standard connectors widely used. Moreover, connectors used in this power supply
mate with accessory harnesses and assemblies designed and manufactured by Multilink Inc. Refer to the OPTIONS
section of these instructions for further information.
In all installations, the following conditions apply and must be observed:
•A service disconnect switch containing over-current protection devices such as circuit breakers or fuses with
appropriate AIC (amperes –interrupting capacity) rating should be placed between the AC utility source and the
service entrance device for the power supply. Where used, the disconnect switch must be installed in compliance
with all national, state and local codes as required.
•For outdoor installations, the AC utility conductors connected to the power supply service entrance device shall
be physically protected through an appropriate restraining device and conduit, consistent with local codes and
practices.
•Permission to mount the power supply enclosure at any site shall be made in accordance with all legal
requirements and local practices of the area.
This power supply is designed for use in both existing and new ground-mount enclosures. Observe the following
procedures during installation of any EDP Double Conversion series power supply.
Preparation:
The EDP Double Conversion series power supplies have been factory assembled, tested, and prepared as a complete
product ready for installation within an enclosure. The installer must verify that the correct type of AC power
receptacle is installed in the enclosure for the input service and power supply selected for use at any given site.
Additionally, the battery strings installed in the enclosure must match the EDP Double Conversion model specific
battery voltage. Power supply ratings may be verified from the nameplate on the top of the power supply near the AC
Input circuit breaker.
Grounding:
Safety ground and earth ground connections must be in place for the power supply and enclosure for both personal
safety and operational considerations. During power supply and/or enclosure installation, the following grounding
connections must be provided or verified.
CAUTION / ATTENTION
Failure to provide and connect adequate safety and earth grounds at each installation site may result in
improper power supply operation or permanent damage to the power supply itself. Grounding facilities
and connections must conform to appropriate national codes and/or local practices.
Si vous ne fournissez pas et ne connectez pas des zones de sécurité et de mise à la terre adéquates sur
chaque site d'installation, vous risquez d'endommager le bloc d'alimentation ou d'endommager l'ali-
mentation électrique elle-même. Les installations de mise à la terre et les connexions doivent être con-
formes aux codes nationaux et / ou aux pratiques locales appropriées.

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1. The AC utility conductors installed in the service entrance box must contain a safety ground conductor. The
power supply installer should verify that this grounding conductor is in place, having been installed along with the
AC utility input.
2. A separate enclosure ground wire must be connected between the enclosure ground lug and an earth ground
connection provided by a ground rod installed at the power supply site. In most cases, one copper or copper-clad
steel ground rod of 2.5 meter (8 feet) length driven into the earth will be sufficient to provide the ground
connection required. In some instances, a more elaborate grounding method (such as a ring ground) may be
required; however, this may be dictated by state or local codes and depends on conductivity of the soil within the
installation area.
3. The dead metal of the service entrance box must be bonded to the metal enclosure that houses the power supply.
Additionally, the ground bar within the service entrance box should be bonded to the metal enclosures; however,
this requirement may be subject to local codes and practices.
4. The grounding wire connected between the power supply enclosure and the earth ground rod should be no smaller
in area than 13 mm² (6 AWG) copper. Both ends of the ground wire should be sealed with an appropriate anti-
oxidation compound.
5. An optional ground bonding wire of the same size as specified in Step 4 above may be connected between the
optional ground lug at the left side of the power supply chassis and earth ground where such connection enters the
external system enclosure. Refer to the OPTIONS sections for more information
Placement in the Enclosure:
This power supply has been designed primarily for use within a cabinet or enclosure offering protection from outdoor
weather, entry of excessive dust, dirt or moisture, and from unauthorized contact by untrained personnel. If used in a
controlled environment, the power supply may be located within an indoor equipment cabinet or may be mounted to a
rack system. Place the power supply within 36 inches of the line and load terminal block buses inside the cabinet.
The power supply should be mounted on a ventilated shelf that allows free air circulation, especially through the right
and left side panels of the power supply cabinet. Clearance of at least 1RU or 1.75 inches must be maintained around
all surfaces of this power supply for unobstructed airflow. Temperature of the air entering the power supply should
not exceed 74°C (165° F). System de-rating will occur at 55°C. See Specifications.
Wiring:
Connect input, output, control, and monitor wiring to the power supply according to the following procedure. Refer
to Figs. 3-1 and 4-1 for control and connector positions.
1. Operate the AC line circuit breaker in the service entrance box to the OFF (O) position. If the power supply is
located at a head end or other customer premise site, ensure that the branch circuit breaker chosen to protect
the AC receptacle for the power supply is operated to the OFF (O) position.
2. Operate the Input circuit breaker on the front panel of the power supply to the OFF (O) position.
CAUTION / ATTENTION
Verify the terminal block buses in the cabinet for Utility, Load, Generator, and any additional buses are not
active and are clearly labeled prior to wiring the power supply to the terminal block buses.
Vérifiez que les bus du bornier dans l'armoire pour Utility, Load, Generator et tous les autres bus ne sont
pas actifs et sont clairement étiquetés avant de câbler l'alimentation aux bus du bornier.

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3. If the Safety Automatic Transfer Switch (SATS) is required, attach the corresponding wires of the cabinet’s
terminal block buses to the SATS and the power supply as show. If only an EDP Double Conversion power
supply is in use, please continue to step 4.
Fig. 4-1 SATS and EDP wiring example
4. Attach the corresponding wires of the circular Power harness to their respective terminal block buses in the
cabinet.
a) Black –AC Utility Line Hot Terminal Block Bus
b) White –AC Utility and Load Neutral Terminal Block Buses
c) Red –AC Load Hot Terminal Block Bus
d) Green –AC Line and Load Ground Terminal Block Buses
Fig. 4-2 EDP UPS ONLY wiring example

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5. Connect the circular Power connector to its corresponding receptacle on the front panel of the power supply.
6. If a mating battery harness has been previously installed in the cabinet, verify the correct polarity and voltage
prior to connecting the battery harness to the Battery receptacle. Otherwise, battery connections will be continued
in the following sub-section.
7. Insert the temperature sensor plug into the mating temp receptacle on the front panel of the power supply. The
body of the temperature sensor probe should be placed between two of the battery cases in the enclosure; secured
with an appropriately rated tape.
8. If remote monitoring of the power supply is desired, connect an Ethernet cable to the Ethernet receptacle on the
front panel of the power supply.
Initial installation and wiring is now complete. Verify all connections on the front panel of the power supply are securely
in place.
Battery Placement and Wiring:
Proper installation and wiring of the batteries is critical to the long-term backup capability of any power supply
system. Gelled electrolyte, valve regulated, or AGM batteries are recommended for use in DOT/ITS power supply
applications. All batteries should be tested and fully charged prior to installation. Interconnecting wiring must be no
smaller than 8 mm² in area or 8 AWG. Longer run times and improved efficiency may be realized using battery
wiring of 13 mm² in area or 6 AWG.
In light of the specialized handling and connection requirements for batteries, only trained personnel should install
batteries in an enclosure. Personnel must always employ appropriate safety equipment (goggles or face shields,
insulated gloves, etc.) and only use fully insulated tools for tightening hardware on the battery terminals. Additionally,
proper lifting tools and techniques must always be used during battery installation to avoid personal injury or
equipment damage.

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Battery Installation Procedure:
Each model in the EDP UPS series has a specific battery harness designed for their use. Each harness includes a main
cabinet harness and individual disconnects for each battery. Please review the following steps and figures with respect
to the EDP UPS model chosen before installing the battery strings.
1. The 1.0kVA system uses a 24VDC battery system. Refer to figure 4-3 when installing the battery harness for this
system. NOTE: Follow diagram as pictured or system damage may occur.
Fig. 4-3: 1kVA EDP model, 24VDC Battery Harness Kit
2. The 1.5kVA system uses a 36VDC battery string. Refer to figure 4-4 when installing the battery harness for this
system. NOTE: Follow diagram as pictured or system damage may occur.
Fig. 4-4: 1.5kVA EDP model, 36VDC Battery Harness Kit

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3. The 2.0kVA system uses a 48VDC battery sttring. Refer to figure 4-5 when installing the battery harness for this
system. NOTE: Follow diagram as pictured or system damage may occur.
Fig. 4-5: 2.0kVA EDP model, 48VDC Battery Harness Kit
4. Place the batteries on the shelves of the enclosure with the positive terminal facing out. Choice of cabinet
enclosure will dictate exact battery placement. Space the batteries approximately 25-mm (1 inch) apart to provide
adequate airflow.
5. Route the main harness of the battery harness kit along the right side of the cabinet enclosure. The interconnecting
harnesses will be used to connect each individual battery to the main harness. If terminal covers are necessary to
prevent accidental short circuits, place them over the ends of the interconnecting harness wires at this time.
6. Batteries are wired in series, connecting the negative post of one battery to positive post of the next. Battery
cables and terminals are color coded to aid in correct wiring. Black terminal is negative (-); red terminal is
positive (+).
7. Use of an anti-oxidation compound, such as NO-OX-ID “A-Special”3, is recommended at each battery
termination including ring lugs and threaded hardware. Use fully insulated tools only when tightening battery
connections
8. After completing all connections to the battery terminals, use a digital multi-meter (DMM) to verify proper
voltage and polarity at the battery harness connector that terminates to the power supply DC input port. For 2-
battery systems, indicated voltage should be approximately 24 volts or slightly higher, 3-battery systems should
be approximately 36 volts or slightly higher, and 4-battery systems should be approximately 48 volts or slightly
higher. When the red and black meter probes are connected to the corresponding colored terminals of the battery
harness connector, the meter should indicate positive (+) voltage, assuming proper connections at the meter itself.
4
NO-OX-ID-“A-Special” is a registered trademark of Sanchem, Inc, Chicago, IL

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WARNING / AVERTISSEMENT
If voltage and polarity indications do not correspond to those described above, determine the cause before
mating the battery connector to the power supply. Incorrectly wired batteries can cause personal injury or
permanent damage to equipment.
Si les indicateurs de tension et de polarité ne correspondent pas à ceux décrits ci-dessus, déterminez la
cause avant d'accoupler le connecteur de la batterie à l'alimentation électrique. Des batteries mal câblées
peuvent provoquer des blessures ou des dommages permanents à l'équipement.
9. Attach the body of the temperature sensor probe to the side of the center battery using self-adhesive tape rated for
use in wide temperature ranges. Depending upon battery construction, it may be necessary to hang the sensor in
close proximity to the side of the battery instead of attaching it directly.
Care and Maintenance of Batteries:
Once installed, batteries must not be allowed to sit idle without receiving a charge. The power supply must be started,
even in the absence of load, and allowed to charge the batteries. Initial charging to ensure full reserve time may
require as long as seven days to accomplish. Batteries connected to an idle system without receiving a charge can be
irreparably damaged, thereby requiring replacement before the system can be fully commissioned into service.
NOTE: The charging requirement becomes a special consideration when the optional Battery Balance Manager is
integrated into the cabinet installation. The BBM Plus product may be connected only when the power supply is fully
operational and capable of charging the battery.

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Section 5: Startup and Operation
The power supply is ready to be placed into operation after it has been installed in its enclosure and all input and
output connections have been made. Ensure that AC input power is available to the power supply receptacle then
perform the following steps in sequence.
CAUTION / ATTENTION
The following steps in the startup procedure MUST be performed exactly as presented; otherwise,
permanent damage to the power supply may result. Observe the LED indicators and the LCD display as a
guide in performing the startup procedure.
Les étapes suivantes de la procédure de démarrage DOIVENT être effectuées exactement comme présenté;
Dans le cas contraire, un endommagement permanent de l'alimentation peut entraîner. Observez les indi-
cateurs LED et l'écran LCD comme guide lors de la procédure de démarrage.
1. Verify that all connections and initial wiring is complete, as previously outlined and described.
2. Connect the battery harness to the Battery receptacle of the UPS. NOTE:The LCD screen and LEDs will
illuminate, but the power supply will not activate its output until AC Line voltage has been applied.
3. Operate the utility AC circuit breaker serving the power supply to the ON position.
4. Operate the Input circuit breaker on the power supply and the power supply will begin to qualify AC line
voltage and the Output will be activated.
5. The LED indicators on the front panel of the power supply should be illuminated as follows upon startup
from the AC utility line:
•OUTPUT STATUS:Green
•BATTERY STATUS: Green
•INVERTER STATUS: Green
•UPS ALARM/FAULT:OFF (If Lit, investigate any alarms or faults prior to continuing)
6. After the power supply initializes, the status screen should now be scrolling on the LCD display and should
look similar to this:
Multilink EDP
Main Menu
Performance
7. The power supply will automatically begin charging the batteries after AC Line voltage has been qualified.
8. The power supply is now operating in its normal double conversion mode, assuming application of
appropriate AC line power and load.

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Front Panel LCD Menus:
The status of the power supply is indicated in the various menus available on the LCD display located on the front panel
of the power supply. Operating parameters and various configuration items are presented to the user.
Four buttons, located below LCD display, provide user control for navigating the various menu items. Button functions
are listed above each button on the bottom line of the LCD and may change depending on the menu item currently shown.
Multilink EDP
Main Menu
Performance
Fig. 5-1 Controls
LCD Screen Display:
The LCD assembly chosen for the EDP Double Conversion series power supplies has been designed for use in a wide
temperature range. As such, the characters displayed on the screen should be visible under nearly all temperature
conditions. The user may note that under hotter than normal conditions, the characters may fade and become less
distinct as compared to those viewed at lower temperatures. The faded characters are temporary and will darken as
temperature decreases.
The backlight feature of the LCD display is timed to automatically shut off 5 minutes after the last pushbutton is
pressed. The auto-shutoff feature extends the life of the backlight.
LCD Menu Tree:
The EDP Double Conversion menu layout allows for easy access to system performance parameters, configuration
settings, history statistics, and operating conditions. A main menu structure provides the user with various menus to
view and configure each UPS. The following sections describe the menu tree and each menu item.
Menu Options and Descriptions:
Performance: Displays current measured operating conditions for various parameters.
History: Displays number of events, current active event time, and previous event history.
Battery Status: Provides measured battery voltage, charger state, and .
Configuration: Provides all user configurable options such as IP settings, date, time, etc.
Firmware: Displays the current firmware build and date of build.
ENTER CHANGES
TO CURRENT
MENU ITEM
MOVE INTO THE
CURRENT SELECTED
SUBMENU
MOVE RIGHT TO
SELECT NEW
MENU ITEM
RETURN TO
PREVIOUS
SELECTION OR MENU