Enerdrive ePRO Combi Series User manual

INVERTER / CHARGER
DC to AC true sinewave inverter
programmable automatic battery charger
automatic transfer switch
Owner’s Manual
EPC 1600-12 ePRO Combi 12V / 60Amp EPC 1800-24 ePRO Combi 24V / 35Amp
EPC 2000-12 ePRO Combi 12V / 80Amp EPC 2500-24 ePRO Combi 24V / 50Amp
EPC 3000-12 ePRO Combi 12V / 120Amp EPC 3500-24 ePRO Combi 24V / 70Amp

Enerdrive ePRO Inverter / Charger Owners Manual
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PLEASE KEEP THIS MANUAL FOR FUTURE REFERENCE
For safe and optimum performance, the Enerdrive ePRO Inverter / Charger must be used properly.
Carefully read and follow all instructions and guidelines in this manual and give special attention
to the CAUTION and WARNING statements.
Disclaimer
While every precaution has been taken to ensure the accuracy of the contents of this guide,
Enerdrive assumes no responsibility for errors or omissions. Note as well that specications and
product functionality may change without notice.
Important
Please be sure to read and save the entire manual before using your Enerdrive ePRO Inverter
/ Charger. Misuse may result in damage to the unit and/or cause harm or serious injury. Read
manual in its entirety before using the unit and save manual for future reference.
Product Numbers - ePRO Inverter / Charger Series
EPC 1600-12 ePRO Combi 12V / 60Amp EPC 1800-24 ePRO Combi 24V / 35Amp
EPC 2000-12 ePRO Combi 12V / 80Amp EPC 2500-24 ePRO Combi 24V / 50Amp
EPC 3000-12 ePRO Combi 12V / 120Amp EPC 3500-24 ePRO Combi 24V / 70Amp
ePRO Inverter / Charger Owners Manual Rev 2
Service Contact Information
ENERDRIVE PTY LTD
Unit 11, 1029 Manly Road Tingalpa, Queensland, Australia 4173
Ph: 1300 851 535 / Fax: [phone]
Email: [e-mail] | Web: www.enerdrive.com.au

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Enerdrive ePRO Inverter / Charger Owners Manual
Notice of Copyright
Enerdrive ePRO Combi EPC 1600-12 to EPC 3500-24 inverter/charger owner’s manual © 2012-
2014 Enerdrive . All rights reserved. No part of this document may be reproduced in any form or
disclosed to third parties without the express written permission of Enerdrive Pty Ltd, Unit 11,
1029 Manly Road Tingalpa, Queensland, Australia 4173. Enerdrive reserves the right to revise
this document and to periodically make changes to the content hereof without obligation or
organization of such revisions or changes, unless required to do so by prior arrangement.
Exclusions For Documentation And Product Usage
1. Unless specically agreed to in writing, Enerdrive Pty Ltd : makes no warranty as to the
accuracy, suciency or suitability of any technical or other information provided in its
manuals or other documentation
2. Assumes no responsibility or liability for losses, damages, costs or expenses, whether
special, direct, indirect, consequential or incidental, which might arise out of the use of such
information.The use of any such information will be entirely at the user’s risk
3. Reminds you that if this manual is in any language other than english although steps have
been taken to maintain the accuracy of the translation, the accuracy cannot be guaranteed.
4. Makes no warranty, either expressed or implied, including but not limited to any implied
warranties of merchantability or tness for a particular purpose, regarding these Enerdrive
products and makes such Enerdrive products available solely on an“as is”basis.
5. Shall in no event be liable to anyone for special, collateral, incidental, or consequential
damages in connection with or arising out of purchase or use of these Enerdrive products.The
sole and exclusive liability to Enerdrive, regardless of the form of action, shall not exceed the
purchase price of the Enerdrive products described here in.

Enerdrive ePRO Inverter / Charger Owners Manual
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Table Of Contents
1. INTRODUCTION..................................................................................... 5
2. DESCRIPTION.......................................................................................... 8
3. CONFIGURING THE ePRO COMBI ..................................................... 10
3.1 General.......................................................................................... 10
3.2 Factory default parameter settings...................................... 11
3.3 DIP switch settings overview ................................................. 16
4. GENERAL OPERATION.......................................................................... 20
4.1 Operating the ePRO Combi .................................................... 20
4.2 ePRO Combi LED indicators and error modes .................. 21
4.2.1. Error indications ........................................................................ 23
4.3 Programmable Alarm relay ..................................................... 24
4.4 Trigger input................................................................................ 24
4.5 Load requirements in inverter mode................................... 25
5. CHARGER OPERATION ......................................................................... 26
5.1 Charge programs ....................................................................... 26
5.2 Equalizing a ooded battery.................................................. 29
6. TROUBLESHOOTING GUIDELINE ...................................................... 32
7. TECHNICAL SPECIFICATIONS............................................................. 38
8. WARRANTY CONDITIONS ................................................................... 44
9. NOTES....................................................................................................... 46

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Enerdrive ePRO Inverter / Charger Owners Manual
1. Introduction
Thank you for purchasing a Enerdrive ePRO Combi inverter/charger
combination. Please read this owner’s manual for information about
using the product correctly and safely. Keep this owner’s manual and all
other included documentation close to the product for future reference.
For the most recent manual revision, please check the downloads
section on our website.
The purpose of this owner’s manual is to provide explanations and
procedures for operating, and conguring the ePRO Combi. For
installing the ePRO Combi, a separate installation guide is included. The
installation guide is intended for installers that should have knowledge
and experience in installing electrical equipment, knowledge of the
applicable installation codes, and awareness of the hazards involved in
performing electrical work and how to reduce those hazards.
CAUTION
This section contains important safety information for the Enerdrive ePRO
Combi. Each time, before using the Enerdrive ePRO Combi, READ ALL
instructions and cautionary markings on or provided with the inverter, and
all appropriate sections of this guide. The Enerdrive ePRO Combi contains
no user serviceable parts. See Warranty section for how to handle product
issues.

Enerdrive ePRO Inverter / Charger Owners Manual
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WARNING
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN
RESULT IN DEATH OR SERIOUS INJURY
When working with electrical equipment or lead acid batteries, have
someone nearby in case of an emergency.
Study and follow all the battery manufacturer’s specic precautions when
installing, using and servicing the battery connected to the inverter.
Wear eye protection and gloves.
Avoid touching your eyes while using this unit.
Keep fresh water and soap on hand in the event battery acid comes in
contact with eyes. If this occurs, cleanse right away with soap and water for
a minimum of 15 minutes and seek medical attention.
Batteries produce explosive gases. DO NOT smoke or have an open spark or
re near the system.
Keep unit away from moist or damp areas.
Avoid dropping any metal tool or object on the battery. Doing so could
create a spark or short circuit which goes through the battery or another
electrical tool that may create an explosion.
WARNING
FIRE AND/OR CHEMICAL BURN HAZARD
Do not cover or obstruct any air vent openings and/or install in a zero-
clearance compartment.

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Enerdrive ePRO Inverter / Charger Owners Manual
WARNING
SHOCK HAZARD. KEEP AWAY FROM CHILDREN!
Avoid moisture. Never expose unit to snow, water, etc.
Unit provides 230 VAC, treat the AC output socket the same as regular wall
AC sockets at home.
WARNING
EXPLOSION HAZARD!
DO NOT use the Enerdrive ePRO Combi in the vicinity of ammable fumes
or gases (such as gas bottles or large engines).
AVOID covering the ventilation openings. Always operate unit in an open
and well ventilated area.
Prolonged contact to high heat or freezing temperatures will decrease the
working life of the unit.
LIMITATIONS OF USE
Do not use in connection with life support systems or other medical
equipment or devices.

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2. Description
The Enerdrive ePRO Combi is an all-in-one combination of a DC to AC true
sinewave inverter, an advanced multi-stage battery charger and a high
speed AC transfer switch. All this is built into one compact, yet installer
friendly enclosure. Besides these three main functions, there are several
unique features oered as well. Some of which benet from the strong
interaction between the three main functions.
The main task of the ePRO Combi is to act as an uninterruptible AC power
supply (UPS). In case of a grid/generator failure or disconnection, the ePRO
Combi immediately stops charging the battery, releases the AC transfer
switch and activates the inverter which takes over the supply to the
connected loads. All this is achieved so fast, that even very critical loads like
computers will continue to operate without any problems. In case the grid/
generator is reconnected again and the voltage and frequency are within
acceptable limits, the ePRO Combi activates the AC transfer switch and
battery charger again, while deactivating the inverter. The connected loads
are now supplied again by the grid/generator without any interruption.
Additionally, the ePRO Combi oers features like :
• AC Input Power Boost, which temporarily assists weak AC input
sources when the connected load needs more power than available
from the grid or generator.
• AC Input Current Limit, which limits the maximum current consumed
fromtheACinputsourcebytheePRO Combi.Thislimitis user adjustable.
• Power Factor Corrected AC Input, which optimizes energy
eciency and makes sure that the maximum amount of charging
current is available from your AC source.
• Intelligent 4-stage charge programs, user programmable to t
any battery type.

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Enerdrive ePRO Inverter / Charger Owners Manual
• Fully programmable inverter, transfer switch and battery
charger parameters, using the Dashboard for Windows software.
• Programmable alarm relay, for optimal control of external devices
like generator starting or selective load disconnection.
• Freely assignable trigger input, which allows the user to control
the ePRO Combi by external events.
• Temperature controlled fans, to guarantee silent operation under
less than full load conditions.
• Temperature compensated battery charging, using the standard
supplied battery temperature sensor for maximum battery lifetimes.

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3. Conguring The Enerdrive ePRO Combi
3.1 General
The ePRO Combi can be congured in two ways. Using the DIP switches
located in the connection bay, a small selection of basic settings can
be made. In most cases this will be sucient to quickly setup the unit
for typical applications. Another option is to setup the ePRO Combi
using the Dashboard for Windows software. This software is included
in the optional ePROLink to USB Communication Kit (part.# 5092120),
which also contains an isolated interface box required to connect the
ePRO Combi to a PC. Using Dashboard, all available parameters can be
edited, and it is also possible to edit or create your own battery charge
programs.
CAUTION
When conguring the ePRO Combi by Dashboard, make sure that DIP
switch 1 is set to ON (External). When set to ON, all remaining DIP switch
settings (2 up to 7 or 9) are ignored and the ePRO Combi will always load the
parameter settings as congured in Dashboard.
When DIP switch 1 is set to OFF (Local) again, DIP switch 2 up to 7 or 9
are overriding the corresponding parameter settings previously made in
Dashboard. The parameters that cannot be congured by DIP switches,
shall return to the factory default settings.
This manual will only describe the DIP switch settings and all relevant
factory default parameters. Conguration by ePRO Dashboard will be
explained in the ePRO Dashboard manual that comes with the ePROLink
to USB Communication Kit.

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Enerdrive ePRO Inverter / Charger Owners Manual
3.2 Factory Default Parameter Settings
The table below shows an overview of the most relevant factory
parameter settings, as stored in the ePRO Combi. These settings are
based on an average application. Enerdrive cannot guarantee that these
are correct for your specic application. Please check all parameters
carefully, especially the battery charging voltages.
Parameter Inverter frequency
Value 50Hz
Description Output frequency in inverter mode. Can be set to 50Hz or 60Hz
Congurable by DIP switch (DIP 2) and Dashboard
Parameter Inverter voltage
Value 230V
Description Output voltage in inverter mode. Can be set from 200V to 240V
Congurable by Dashboard
Parameter Low Battery Protect
Value On
Description Enables or disables low battery protection with user programmable
shutdown, restart and delay values (standard respectively 10V, 12V
and 5 seconds).Turning Low Battery Protect o, results in immediate
inverter shutdown when the battery voltage is less than 8.0V.
Congurable by DIP switch (DIP 3) and Dashboard
Parameter Automatic Stand By (ASB)
Value O

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Description Enables or disables ASB. If enabled, the inverter will jump to ASB mode
automatically, when the connected load power consumption drops
below a user programmable level. In ASB mode the inverter pulses it’s
output sinewave in order to detect when the connected load requires
more power again. While running in ASB mode, the ePRO Combi itself
draws signicantly less current from the battery. As soon as the load
power demand increases again, the inverter will automatically jump
to continuous mode delivering uninterrupted power to the load. When
disabled, the inverter will always run in continuous mode, which is
better for critical loads like computers, clocks and AV equipment.
Congurable by DIP switch (DIP 4) and Dashboard
Parameter AC input voltage range (transfer switch)
Value 180V – 270V
Description Input voltage range which is accepted by the ePRO Combi for feeding
throughtotheconnectedload.TwoACundervoltagevaluescanbe set.An
absoluteundervoltagelevelwhichdirectlyreleases theACtransferswitch
when exceeded (factory setting = 150V), and a delayed undervoltage
level, which releases the AC transfer switch after a certain delay (factory
settingsare180Vand5seconds).Thechargerstopschargingwhenthe AC
input voltage drops below 185V and restarts again above 190V.
Congurable by Dashboard
Parameter AC input frequency range
Value 45Hz – 65Hz
Description Input frequency range which is accepted by the ePRO Combi. Can be
set to full range (45Hz – 65Hz), or to a smaller range within the 45Hz
lower and 65Hz upper boundaries.
Congurable by Dashboard

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Enerdrive ePRO Inverter / Charger Owners Manual
Parameter AC Input Current Limit
Value 16.0A or 30.0A (depending on model)
Description Represents the maximum continuous current that the ePRO Combi
will draw from the AC input source. To assure this, the ePRO Combi
will either reduce the charge current automatically, or (when
enabled) will activate the AC Input Power Boost feature which will
supply the additional power demand by running the inverter in
parallel with the AC input source. When the connected load still
draws too much current, the installer can either choose to deactivate
the AC transfer switch, or keep it closed and allow it to exceed the AC
input current limit value. This value can be set from 1.0A to 16.0A or
2.0A to 30.0A (depending on model) by Dashboard or the optional
Universal Remote Control.
Congurable by Dashboard and Universal Remote Control
Parameter AC Input Power Boost
Value O
Description AC Input Power Boost temporarily assists weak AC input sources
when the connected load needs more power than available from
the grid or generator. This is accomplished by running the inverter in
parallel with the AC input source. The inverter can add power up to
it’s nominal output power rating assuming the battery is healthy. This
parameter can be set On or O.
Congurable by DIP switch (DIP 7) and Dashboard
Parameter Ground switch
Value Enabled

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Description The ground switch is an internal relay that automatically connects
AC output Neutral (N) to Protective Earth (PE = chassis) in inverter
mode. This enables the use of a ground fault circuit interrupter
(GFCI) at the AC output of the ePRO Combi. When a non-grounded
(oating-) output is required, this Parameter can be disabled.
Congurable by DIP switch 8 (onEPC 2000-12 to 3500-24 models only) and Dashboard
Parameter AC input fail sensitivity
Value Normal
Description This parameter can be set to Very Low, Low, Normal, High and Very
High. The value of this Parameter decides how fast the ePRO Combi
detects a signal fail at the AC input. The lower settings are resulting
in a slower AC input source inverter transfer time, while the higher
settings result in the fastest transfer times.The settings Low andVery
Low can be used when the AC input signal is distorted or unstable,
which could be the case when a small generator is used.The settings
High and Very High can be used when the ePRO Combi is connected to
a solid grid or quality generator. The factory setting Normal is a good
compromise, which still results in a fast AC input source inverter
transfer time of less than 5ms, while being reasonably immune
against distorted AC input signals.
Congurable by Dashboard
Parameter Battery type / Charge program
Value AGM

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Enerdrive ePRO Inverter / Charger Owners Manual
Description The default charge program AGM is compatible with typical AGM
type batteries, but can be used for other types of lead-acid batteries
as well. Please make sure that you always check if the ePRO Combi
charge program settings, are compatible with the used battery! The
AGM charge program absorption voltage is 14.3V (28.6V@24V) and
the oat voltage is 13.3V (26.6V@24V). Other selectable charge
programs are Flooded, GEL and Custom. For further charge program
information, please see chapters 3.3 and 5.1.
Congurable by DIP switch (DIP 5 and 6) and Dashboard
Parameter Charge current limit
Value 100%
Description This parameter sets the maximum charge current in percent. This
value can be set from 10% to 100% by Dashboard or the optional
Universal Remote Control. You can set this parameter to a lower value
when the connected battery is too small and cannot handle the
maximum charge current, or when you wish to (temporarily) reduce
the charger current share, in the total amount of current owing
through the AC input of the ePRO Combi.
Congurable by Dashboard and Universal Remote Control

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3.3 DIP Switch Settings Overview
During step 3 of the installation guide, you can alter the factory settings
of the DIP switches to change the functionality of the ePRO Combi on
a few points. For additional information about the settings, see the
previous chapter (3.2). The following settings can be made :
Setting Description
Factory setting = OFF
Local / External Programming
ON (External) = DIP switches 2 to 7 or 9 are
ignored and the ePRO Combi will always load the
parameter settings as congured in Dashboard.
OFF (Local) = The local DIP switch settings are used. All
other parameters are set to the factory default settings.
Factory setting = OFF
Inverter output frequency
ON = Output frequency is 60Hz
OFF = Output frequency is 50Hz
Factory setting = ON
Low battery protect
ON = Low battery protect is on
OFF = Low battery protect is o(immediate inverter
shutdown when the battery voltage is < 8.0V)

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Enerdrive ePRO Inverter / Charger Owners Manual
Factory setting = OFF
ASB mode
ON = ASB mode on
OFF = ASB mode o
Factory setting 5 = OFF
Factory setting 6 = ON
Battery type / Charge program1)
5 = OFF Battery type = Flooded
6 = OFF Absorption voltage = 14.4V or 28.8V
Float voltage = 13.5V or 27.0V
5 = ON Battery type = GEL
6 = OFF Absorption voltage = 14.2V or 28.4V Float
voltage = 13.5V or 27.0V
5 = OFF Battery type = AGM
6 = ON Absorption voltage = 14.3V or 28.6V Float
voltage = 13.3V or 26.6V
5 = ON Battery type = Custom (created by Dashboard)
6 = ON Absorption voltage = set by Dashboard Float
voltage = set by Dashboard
Factory setting = OFF
AC Input Power Boost
ON = AC Input Power Boost on
OFF = AC Input Power Boost o

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Factory setting = ON
Models : ePRO Combi 1600-1800
Bypass remote switch (Bypasses the remote switch
connection when no remote switch is connected)
ON = Remote switch connection terminals are bypassed
OFF = remote switch connection terminals are open. A
remote switch must be connected and switched ON in
order to activate the ePRO Combi.The local on/oswitch
on the front panel always overrides the remote switch.
So in order to use the remote switch, the local on/o
switch must be in the‘on’or‘charger only’position.
Models : ePRO Combi 2000-3500
Ground switch/relay
ON = Ground switch is enabled
OFF = Ground switch is disabled
Factory setting = OFF
Models : ePRO Combi 2000-3500 only
Reserved

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Enerdrive ePRO Inverter / Charger Owners Manual
Factory setting = ON
Models : ePRO Combi 2000-3500 only
Bypass remote switch (Bypasses the remote switch
connection when no remote switch is connected)
ON = Remote switch connection terminals are bypassed
OFF = Remote switch connection terminals are open.
A remote switch must be connected and switched ON
in order to activate the ePRO Combi.The local on/o
switch on the front panel always overrides the remote
switch. So in order to use the remote switch, the local on/
oswitch must be in the‘on’or‘charger only’position.
CAUTION
1) Invalid battery type settings can cause serious damage to your
batteries and/or connected battery loads. Always consult your battery’s
documentation for the correct charge voltage settings.

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4. General Operation
4.1 Operating the ePRO Combi
The main switch on the ePRO Combi has three positions : On, Oand
Charger only (see image in chapter 4.2).
When switched to On, the ePRO Combi will perform all tasks automatically.
It will power up in inverter mode, supplying power to the connected load.
When a grid or generator is connected to the AC input, the ePRO Combi
will analyse this signal. If the voltage and frequency of this signal are
both within the required limits, the ePRO Combi will synchronize to the
input signal and activates the AC transfer switch automatically. Now the
connected loads are being powered from the AC input source and the
ePRO Combi will also start charging the battery. As soon as the voltage
or the frequency of the AC input signal are exceeding the required limits
(for example when the AC input signal disappears), the ePRO Combi will
immediately stop charging, release the AC transfer switch and activate
the inverter again. All this happens so fast, that the connected load will
not be disturbed.
When switched to O, the ePRO Combi is completely shut down and
cannot be activated by a remote switch or the Universal Remote Control
either. In this mode, the ePRO Combi will draw no current from the battery.
When switched to Charger only, the ePRO Combi will disable the inverter
mode and will only work as a stand alone battery charger. As soon as a
usable AC input signal is available, the ePRO Combi will activate the AC
transfer switch and starts charging the battery. When the AC input signal
fails, the AC transfer switch will be released again and the charger stops
charging. No AC signal will be present at the ePRO Combi output when
there is no AC input signal either.
Information about the LED indicators on the frontpanel and the dierent
error mode codes, can be found in the next chapter.