Studer Innotec Battery Charger XTH 3000 12 User Manual

PHOTOVOLTAIK - PHOTOVOLTAIC - PHOTOVOLTAIQUE - FOTOVOLTAICA  
Installation and Operating Instructions  
Unit combining inverter, battery charger and transfer system.  
Xtender  
XTH 3000-12  
XTH 5000-24  
XTH 6000-48  
XTH 8000-48  
BTS-01 temperature sensor  
EN  
723.932 | V 0.511  
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Steca  
Xtender  
TABLE OF CONTENTS  
Installation and Operating Instructions 723.932 Xtender V0.511  
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Steca  
Xtender  
1 Introduction  
Congratulations! You are about to install and use a device from the Xtender range. You have  
chosen a high-tech device that will play a central role in energy saving for your electrical  
installation. The Xtender has been designed to work as an inverter / charger with advanced  
functions, which can be used in a completely modular way and guarantee the faultless  
functioning of your energy system.  
When the Xtender is connected to a generator or network, the latter directly supplies the  
consumers, and the Xtender works like a battery charger and backup device if necessary. The  
powerful battery charger has an exceptional high output and form factor correction close to 1. It  
guarantees excellent battery charging in all situations. The charge profile is freely configurable  
according to the type of battery used or the method of usage. The charge voltage is corrected  
depending on the temperature, thanks to the optional external sensor. The power of the charger  
is modulated in real time dependent according to the demand of the equipment connected at the  
Xtender output and the power of the energy source (network or generator). It can even  
temporarily backup the source if the consumer demand exceeds the source capacity.  
The Xtender continuously monitors the source to which it is connected (network or generator) and  
disconnects itself immediately if the source is missing, disturbed or does not correspond to the  
quality criteria (voltage, frequency, etc.). It will then function in independent mode, thanks to the  
integrated inverter. This inverter, which has an extremely robust design, benefits from Steca’s  
many years of experience and expertise in this area. It is capable of supplying any type of load  
without faults, enjoying reserves of additional power that is unmatched on the market. All your  
equipment will be perfectly provided with energy and protected from power outages in systems  
where energy supply is unpredictable (unreliable network) or voluntarily limited or interrupted,  
such as hybrid installations on remote sites or mobile installations.  
The parallel and/or three-phase network operation of the Xtender offers modularity and flexibility  
and enables optimum adaptation of your system to your energy requirements.  
The RCC-02/03 control, display and programming centre (optional) enables optimum  
configuration of the system and guarantees the operator continuous control for all important  
configurations in the installation.  
In order to guarantee perfect commissioning and functioning of your installation, please read this  
manual carefully. It contains all the necessary information relating to the functioning of the  
inverters / chargers in the Xtender series. The setting up of such a system requires special  
expertise and may only be carried out by qualified personnel familiar with the applicable local  
regulations.  
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Xtender  
2 General information  
2.1 Operating instructions  
This manual is an integral part of each inverter/charger from the Xtender series.  
It covers the following models and accessories:  
Xtender: XTH 3000-12 – XTH 5000-24 – XTH 6000-48 – XTH 8000-48  
Temperature sensor: BTS-01  
For greater clarity, the device is referred to in this manual as Xtender, unit or device, when the  
description of its functioning applies indiscriminately to different Xtender models.  
Thes operating instructions serve as a guideline for the safe and efficient usage of the Xtender.  
Anyone who installs or uses an Xtender can rely completely on this operating instructionsl, and is  
bound to observe all the safety instructions and indications contained. The installation and  
commissioning of the Xtender must be entrusted to a qualified professional. The installation and  
usage must conform to the local safety instructions and applicable standards in the country  
concerned.  
2.2 Conventions  
This symbol is used to indicate the presence of a dangerous voltage that is sufficient to  
constitute a risk of electric shock.  
This symbol is used to indicate a risk of material damage.  
This symbol is used to indicate information that is important or which serves to optimise  
your system.  
All values mentioned hereafter, followed by a configuration no. indicate that this value may be  
modified with the help of the RCC-02/03 remote control.  
In general, the default values are not mentioned and are replaced by a configuration no. in the  
following format: {xxxx}. The default values for this configuration are specified in the configuration  
table, p.35.  
All configuration values modified by the operator or installer must be transferred into the same  
table. If a parameter not appearing in the list (advanced configurations) has been modified by an  
authorised person with technical knowledge, they will indicate the number of the modified  
parameter(s), the specifications of the configuration(s) and the new value set, at the end of the  
same table.  
All figures and letters indicated in brackets refer to items of figures in the separate manual  
“Appendix to the installation and operating instructions” supplied with the device.  
The figures in brackets refer to elements belonging to the Xtender.  
The uppercase letters in brackets refer to AC cabling elements.  
The lowercase letters in brackets refer to battery cabling elements.  
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2.3 Quality and warranty  
During the production and assembly of the Xtender, each unit undergoes several checks and  
tests. These are carried out with strict adherence to the established procedures. Each Xtender  
has a serial number allowing complete follow-up on the checks, according to the particular data  
for each device. For this reason it is very important never to remove the type plate (appendix I –  
fig. 3b) which shows the serial number. The warranty for this equipment depends upon the strict  
application of the instructions appearing in this manual.  
The warranty period for the Xtender is 2 years.  
XCLUSION OF WARRANTY  
E
2.3.1  
No warranty claims will be accepted for damage resulting from handling, usage or processing that  
does not explicitly appear in this manual. Cases of damage arising from the following causes are  
notably excluded from the warranty:  
Surge voltage on the battery input (for example, 48 V on the battery input of an XTH  
3000-12)  
Incorrect polarity of the battery  
The accidental ingress of liquids into the device or oxidation resulting from condensation  
Damage resulting from falls or mechanical shocks  
Modifications carried out without the explicit authorisation of Steca  
Nuts or screws that have not been tightened sufficiently during the installation or  
maintenance  
Damage due to atmospheric surge voltage (lightning)  
Damage due to inappropriate transportation or packaging  
Disappearance of original marking elements  
XCLUSION OF LIABILITY  
E
2.3.2  
The placement, commissioning, use, maintenance and servicing of the Xtender cannot be the  
subject of monitoring by Steca. For this reasons we assume no responsibility and liability for  
damage, costs or losses resulting from an installation that does not conform to the instructions,  
defective functioning or deficient maintenance. The use of an inverter is the responsibility of the  
customer in all cases.  
This equipment is neither designed nor guaranteed to supply installations used for vital medical  
care nor any other critical installation carrying significant potential damage risks to people or the  
environment.  
We assume no responsibility for the infringement of patent rights or other rights of third parties  
that result from using the inverter.  
Steca reserves the right to make any modifications to the product without prior notification.  
2.4 Warnings and notes  
GENERAL  
2.4.1  
This manual is an integral part of the device and must be kept available for the operator  
and installer. It must remain close to the installation so that it may be consulted at any  
time.  
The configuration table available at the end of the manual must be kept up to date in the event of  
modification of the configurations by the operator or installer. The person in charge of installation  
and commissioning must be wholly familiar with the precautionary measures and the local  
applicable regulations.  
When the Xtender is running, it generates voltage that can be potentially lethal. Work on  
or close to the installation must only be carried out by thoroughly trained and qualified  
personnel. Do not attempt to carry out ongoing maintenance of this product yourself.  
The Xtender or the generator connected to it, may start up automatically under certain  
predetermined conditions.  
When working on the electrical installation, it is important to be certain that the source of  
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Xtender  
DC voltage coming from the battery as well as the source of AC voltage coming from a  
generator or network have been disconnected from the electrical installation.  
Even when the Xtender has been disconnected from the supply sources (AC and DC), a  
dangerous voltage may remain at the outputs. To eliminate this risk you must switch the  
Xtender OFF using the ON/OFF button (1). After 10 seconds the electronics is  
discharged and intervention may take place without any danger.  
All elements connected to the Xtender must comply with the applicable laws and regulations.  
Persons not holding written authorisation from Steca are not permitted to proceed with any  
change, modification or repairs that may be required. Only original parts may be used for  
authorised modifications or replacements.  
This manual contains important safety information. Read the safety and working instructions  
carefully before using the Xtender. Adhere to all the warnings given on the device as well as in  
the manual, by following all the instructions with regard to operation and use.  
The Xtender is only designed for interior use and must under no circumstances be subjected to  
rain, snow or other humid or dusty conditions.  
The maximum specifications of the device shown on the type plate, as at fig. 3b, must be  
adhered to.  
In the event of use in motorised vehicles, the Xtender must be protected from dust, splash water  
and any other humid condition. It must also be protected from vibration by installing absorbent  
parts.  
RECAUTIONS FOR USING THE BATTERIES  
P
2.4.2  
Lead-acid or gel batteries produce a highly explosive gas with normal use. No source of sparks or  
fire should be present in the immediate vicinity of the batteries. The batteries must be kept in a  
well-ventilated place and be installed in such a way as to avoid accidental short-circuits when  
connecting.  
Never try to charge frozen batteries.  
When working with the batteries, a second person must be present in order to lend assistance in  
the event of problems.  
Sufficient fresh water and soap must be kept to hand to allow adequate and immediate washing  
of the skin or eyes affected by accidental contact with the acid.  
In the event of accidental contact of the eyes with acid, they must be washed carefully with cold  
water for 15 minutes. Then immediately consult a doctor.  
Battery acid can be neutralised with baking soda. A sufficient quantity of baking soda must be  
available for this purpose.  
Particular care is required when working close to the batteries with metal tools. Tools such as  
screwdrivers, open-ended spanners, etc. may cause short-circuits. Consequently occurring  
sparks may cause the battery to explode.  
When working with the batteries, all metal jewellery such as rings, bracelet watches, earrings,  
etc., must be taken off. The current output by the batteries during a short-circuit is sufficiently  
powerful to melt the metal and cause severe burns.  
In all cases, the instructions of the battery manufacturer must be followed carefully.  
3 Assembly and installation  
3.1 Handling and moving  
The weight of the Xtender is between 35 and 50kg depending upon the model. Use an  
appropriate lifting method as well as help from a third party when installing the equipment.  
3.2 Storage  
The equipment must be stored in a dry environment at an ambient temperature of between  
-20°C and 60°C. It stay in the location where it is to be used a minimum of 24 hours before being  
set up.  
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3.3 Unpacking  
When unpacking, check that the equipment has not been damaged during transportation and that  
all accessories listed below are present. Any fault must be indicated immediately to the product  
distributor or the contact given at the back of this manual.  
Check the packaging and the Xtender carefully.  
Standard accessories:  
Installation and operating instructions, c.f. Appendix 1  
Mounting plate – fig. 2a (18)  
2 conduit glands for the battery cable  
3.4 Installation site  
The installation site for the Xtender is of particular importance and must satisfy the following  
criteria:  
Protection from any unauthorised person.  
Protection from water and dust and in a place with no condensation.  
It must not be situated directly above the battery or in a cabinet with it.  
No easily inflammable material should be placed directly underneath or close to the Xtender.  
Ventilation apertures must always remain clear and be at least 15cm from any obstacle that may  
affect the ventilation of the equipment according to fig. 2b.  
In mobile applications it is important to select an installation site that ensures as low a vibration  
level as possible.  
3.5 Fastening  
The Xtender is a heavy unit and must be mounted to a wall designed to bear such a  
load. A simple wooden panel is insufficient.  
The Xtender must be installed vertically with sufficient space around it to guarantee adequate  
ventilation of the device (see figs. 2a and 2b).  
If the Xtender is installed in a closed cabinet this must have sufficient ventilation to guarantee an  
ambient temperature that conforms to the operation of the Xtender.  
Firstly, fit the mounting bracket (18) supplied with the device, using 2 Ø <6-8 mm> screws**.  
Then hang the Xtender on the bracket. Fasten the unit permanently using 2 Ø <6-8 mm>  
screws** on to the two notches located at the underside of the case.  
**: These items are not delivered with the device.  
It is imperative to ensure complete and safe fastening of the device. A device that is  
simply hung may detach and cause severe damage.  
In motor vehicles or when the support may be subject to strong vibrations, the Xtender must be  
mounted on anti-vibration supports.  
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3.6 Connections  
ENERAL RECOMMENDATIONS  
G
3.6.1  
The Xtender falls within protection class I (has a PE connection terminal). It is vital that a  
protective earth is connected to the AC IN and/or AC OUT PE terminals. An additional protective  
earth is located between the two fastening screws at the bottom of the unit (fig. 2b-(17)).  
In all cases, the PE conductor for the equipment must at least be connected to the PE  
for all equipment in protection class I upstream and downstream of the Xtender  
(equipotential bonding). It is imperative that the legislation in force for the application  
concerned be adhered to.  
Tighten of the input (13) and output (14) terminals by means of a no. 3 screwdriver and those for  
the “REMOTE ON/OFF” (7) and “AUX.CONTAC” (8) by means of a no. 1 screwdriver.  
The cable sections of these terminals must conform to local regulations.  
All connection cables as well as the battery cables must be mounted using cable restraints in  
order to avoid any traction on the connection.  
Battery cables must also be as short as possible and the section must conform with the  
applicable regulations and standards. Sufficiently tighten the clamps on the “battery” inputs (fig.  
4a (11) and (12)).  
EVICE CONNECTION COMPARTMENT  
D
3.6.2  
The unit’s connection compartment must remain permanently closed when in operation.  
It is imperative to close the protection cap on the connection terminals after each  
intervention in the device.  
After opening, check that all sources of AC and DC voltage (batteries) have been  
disconnected or put out of service.  
Fig. 4a  
12  
11  
14  
13  
8
1
2
7
1 2 3  
A
B
5
10  
6
L
L
AUX1  
AUX2  
AC Input  
AC O  
utput  
Warning!  
9
Check battery polarity (+/-) before connecting  
A wrong connexion may damage the systen  
!
2
4
3
1
OFF  
ON  
Open  
Terminated  
Main  
switch  
Temp.  
Sens.  
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Pos. Denominati Description  
on  
Comment  
1
2
3
ON/OFF  
Main switch  
Main on/off switch  
7.1 – p 26.  
See chapter 6.2.11 – p. 23.  
Only connect the original Steca BTS-01  
sensor  
Temp. Sens Connector for the battery  
temperature sensor  
Com. Bus  
Double connector for  
See chapter 4.5.8 – p. 16.  
connecting peripherals such as The two termination switches (4) for the  
the RCC002/03 or other  
Xtender units  
Switch for terminating the  
communication bus.  
communication bus both remain in  
position T (terminated) except when both  
connectors are in use.  
4
O / T  
(Open /  
Terminated)  
--  
5
6
3.3 V (CR-2032) lithium ion  
type battery socket  
Jumper for programming the  
off/on switch by dry contact  
Used as a permanent supply for the  
internal clock. See chapter 6.2.10 – p 23.  
See chapter 6.2.11 – p. 23 and fig. 8b  
point (6) and (7). They are positioned at  
A-1/2 and B-2/3 by default  
--  
7
REMOTE  
ON/OFF  
Connection terminals for dry  
on/off remote connection.  
See chapter 6.2.11 – p. 23).  
When the control via dry contact is not  
being used, a bridge must be present  
between the two terminals.  
8
9
AUXILIARY Auxiliary contact  
CONTACT  
See chapter 6.2.9 – p. 23  
Take care not to exceed the admissible  
loads  
--  
Activation indicators for  
See chapter 6.2.9 – p. 23  
auxiliary contacts 1 and 2  
10 L1/L2/L3  
11 +BAT  
Phase selection jumpers.  
See chapter 6.3.1. – p. 24.  
Jumper default at position L1  
Carefully read chapter 4.5 – p. 12  
Take care with the polarity of the battery  
and when tightening the clamp.  
Positive pole battery  
connection terminals  
Negative pole battery  
connection terminals  
12 -BAT  
13 AC Input  
Connection terminals for the  
alternative power supply  
(generator or public network)  
Connection terminals for the  
device output.  
See chapter 0 - p. 16.  
Note: It is imperative that the PE terminal  
be connected.  
14 AC Output  
See chapter 4.5.5 - p. 16.  
Note: Increased voltages may appear on  
the terminals, even in the absence of  
voltage at the input of the inverter.  
4 Cabling  
The connection of the Xtender inverter / charger is an important installation step.  
It may only be carried out by qualified personnel and in accordance with the applicable local  
regulations and standards. The installation must always comply with these standards.  
Pay attention that connections are completely tightened and that each wire is connected at the  
right place.  
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4.1 Choice of system  
The Xtender may be used in different system types, each of which must meet the standards and  
particular requirements associated with the application or site of installation. Only an  
appropriately qualified installer can advise you effectively on the applicable standards with regard  
to the various systems and the country concerned.  
Examples of cabling are presented in appendix I of this manual, fig. 5 and following. Please  
carefully read the notes associated with these examples in the tables on p. 29 and following.  
YBRID TYPE STAND ALONE SYSTEMS  
H
-
4.1.1  
The Xtender can be used as a primary supply system for grid-remote sites where a renewable  
energy source (solar or hydraulic) is generally available and a generator is used as backup. In  
this case, batteries are generally recharged by a supply source such as solar modules, wind  
power or small hydropower systems. These supply sources must have their own voltage and/or  
current regulation system and are connected directly to the battery. (Example, fig. 11)  
When the energy supply is insufficient, a generator is used as a back-up energy source. This  
allows the batteries to be recharged and direct supply to consumers via the Xtender transfer relay.  
When the input voltage source is a low power generator (lower than the power) the  
factory settings (adapted to grid-connection) must be modified according to the  
“generator” column in the configuration table on p. 35.  
RID CONNECTED EMERGENCY SYSTEMS  
G
-
4.1.2  
The Xtender can be used as an emergency system, also known as an uninterruptible power  
supply (UPS) – enabling a reliable supply to a site connected to an unreliable network. In the  
event of an interruption to the energy supply from the public network, the Xtender, connected to a  
battery, substitutes the faulty source and enables a support supply to the users connected  
downstream. These will be supplied as long as the energy stored in the battery allows. The  
battery will quickly be recharged at the next reconnection to the public grid.  
Various application examples are described in figs. 8a – 8c in appendix I.  
The use of the Xtender as a UPS must be carried out by qualified personnel who have  
been checked by the responsible local authorities. The diagrams in the appendix are  
given for information and as a supplement. The applicable local standards and  
regulations must be adhered to.  
NTEGRATED MOBILE SYSTEMS  
I
4.1.3  
These systems are meant to be temporarily connected to the grid and ensure the supply of the  
mobile system when this is disconnected from the grid. The main applications are for boats,  
service vehicles and leisure vehicles. In these cases, two separate AC inputs are often required,  
one connected to the grid and the other connected to an on-board generator. Switching between  
two sources must be carried out using an automatic or manual reversing switch, conforming to  
the applicable local regulations. The Xtender has a single AC input.  
Various application examples are described in figs. 10a – 10b – 10c).  
ULTI UNIT SYSTEMS  
M
-
4.1.4  
Whatever system is selected, it is perfectly possible to realise systems composed of several units  
of the same type and the same power output. Up to three Xtenders in parallel or three extenders  
forming a three-phase grid or three times two with three Xtenders in parallel forming a three-  
phase / parallel grid, may be thus combined.  
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4.2 Earthing system  
The Xtender is a protection class I unit, which is intended for cabling in a grid type TT, TN-S or  
TNC-S. The earthing of the neutral conductor (E) is carried out at a sole installation point,  
upstream of the RCD circuit breaker (D).  
The Xtender can be operated with any earthing system. In all cases it is imperative that the  
protective earth be connected in compliance with the applicable standards and regulations. The  
information, notes, recommendations and diagram mentioned in this manual are subject to local  
installation regulations in every case. The installer is responsible for the conformity of the  
installation with the applicable local standards.  
OBILE INSTALLATION OR INSTALLATION CONNECTED TO THE GRID VIA PLUG CONNECTOR  
M
4.2.1  
When the input of the device is connected directly to the grid via a plug, the length of the cable  
must not exceed 2 m and the plug must remain accessible.  
In the absence of voltage at the input, the neutral and live are interrupted, thereby guaranteeing  
complete isolation and protection of the cabling upstream of the Xtender.  
The earthing system downstream of the Xtender is determined by the upstream earthing system  
when the grid is present. In the absence of the grid, the earthing system downstream of the  
inverter is in isolated mode. The safety of the installation is guaranteed by the equipotential  
bonding.  
The connection (link) between the neutrals (C) upstream and downstream of the  
Xtender is not permitted in this configuration.  
This connection type guarantees the optimal continuity for supplying the Xtender loads. The first  
isolation fault will not lead to an interruption in the supply.  
If the installation requires the use of a permanent isolation controller this would have to be de-  
activated when the TT network is present at the Xtender input.  
All sockets and protection class I devices connected downstream of the Xtender must  
be properly connected to the earth (earthed socket). The cabling rules above remain  
valid, including fixed installations, in all cases where the Xtender input is connected to  
the grid via a plug connector.  
IXED INSTALLATION  
F
4.2.2  
The installation may be equivalent to a mobile installation (with interrupted neutral).  
In a fixed installation where the neutral is connected to the earth at a single installation point  
upstream of the Xtender, it is permissible to carry out a connection of the neutrals in order to  
preserve an unchanged earthing system downstream, independent of the operating mode of the  
Xtender. This choice has the advantage of keeping the protection devices downstream of the  
Xtender. This connection can be executed according to the examples in appendix 1, or carried  
out by modifying the configuration {1486}  
In this case the appearance of the first fault will lead to the installation stopping or the  
disconnection of the protection devices upstream and/or downstream of the Xtender.  
Safety is guaranteed by the equipotential bonding and by any RCD circuit-breakers placed  
downstream.  
This connection (C) is not permitted if a socket is installed upstream of the Xtender.  
NSTALLATION WITH AUTOMATIC  
NEUTRAL SWITCHING  
PE-  
I
4.2.3  
In certain applications, it is desirable to keep the neutral upstream and downstream of the  
Xtender separated (C) while reestablishing the earthing system (TN-S, TT or TNC-S) in the  
absence of voltage at the input. This can be programmed by the configuration {1485} via the  
RCC-02/03 remote control. This modification must be carried out possessing technical knowledge,  
at the responsibility of the installer and in conformity with the applicable regulations and  
standards.  
This allows adherence to the requirements for an earth-neutral connection at the source.  
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4.3 Recommendations for dimensioning the system  
IMENSIONING THE BATTERY  
D
4.3.1  
The battery capacity is dimensioned according to the requirements of the user – that is 5 to 10  
times its average daily consumption. The discharge depth of the battery will therefore be limited  
and the service life of the battery will be extended.  
On the other hand, the Xtender must have a battery capacity that is large enough to be able to  
take full advantage of the performance of the equipment. The minimum capacity of the batteries  
(expressed in Ah) is generally dimensioned in the following way: five times the rated power  
output of the Xtender / the battery voltage. For example, the model XTH 8000-48 must have a  
battery of a minimum capacity of 7000*5/48=730 Ah (C 10). Because of the inverter’s extreme  
overload capacity, it is often recommended that this value be rounded up. An under-dimensioned  
battery may lead to an accidental and undesired stopping of the Xtender in the event of high  
instances of use. This stoppage will be due to a voltage that is insufficient for the battery, subject  
to a strong discharge current.  
The battery will be selected with regard to the greatest value resulting from the calculations set  
out above.  
The battery capacity determines the adjustment of the configuration {1137} “battery charge  
current”. A value between 0.1 and 0.2 x C batt. [Ah] (C10) enables an optimum charge to be  
guaranteed.  
The method proposed below is strictly indicative and in no way constitutes a guarantee  
of perfect dimensioning. The installer is solely responsible for good dimensioning and  
installation  
IMENSIONING THE INVERTER  
D
4.3.2  
The inverter is dimensioned in such a way that the rated power output covers the power of all the  
consumers which will be used at the same time. A dimensioning margin of 20 to 30% is  
recommended to guarantee that the Xtender will work well in an ambient temperature of more  
than 25 °C.  
IMENSIONING THE GENERATOR  
D
4.3.3  
The power output of the generator must be the same or more than the average daily power.  
Optimally, it should be two or three times this power. Thanks to the smart boost function it is not  
necessary to over-dimension the generator. Indeed, the loads that are temporarily higher than the  
power of the generator will be supplied by the inverter. Ideally it should not have a power output  
by phase that is less than half of the power of the Xtender(s) present at this phase.  
The power available downstream of the inverter when the generator is working is the  
same as the sum of the two powers.  
IMENSIONING THE ALTERNATIVE ENERGY SOURCES  
D
4.3.4  
In a hybrid system, the alternative energy sources such as the solar generator, wind power and  
small hydropower should, in principle, be dimensioned in such a way as to be able to cover the  
average daily consumption.  
4.4 Wiring diagrams  
The diagrams shown in the appendix of this document are subsidiary. The applicable local  
installation regulations and standards must be adhered to.  
The elements referred to with an uppercase letter denote the alternate current (AC) part.  
The elements referred to with a lowercase letter denote the direct current (DC) part.  
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4.5 Connecting the battery  
Lead batteries are usually available in 2 V, 6 V or 12 V block types. In the majority of cases, in  
order to obtain an operating voltage that is correct for Xtender usage, several batteries must be  
connected in series or in parallel depending on the circumstances.  
. In multi-unit systems, all Xtenders from the same system must be connected according  
to the same battery bank.  
The various cabling options are presented in figures 5a-5b (12 V), 5c-5e (24 V) and 6a to 6d (48  
V) in appendix I of this manual.  
ONNECTING THE BATTERY TENDER SIDE  
C
(X  
)
4.5.1  
Insert the conduit glands supplied on the battery  
cable before tightening the cable clamp. Crimp the  
cable clamps and fasten the conduit gland on the  
device. Repeat this for the second battery cable.  
Connect the red cable (+) to the “+ battery” terminal,  
and the black cable (-) to the "- battery” terminal of  
the device, adhering to the order of the elements  
shown in figure 1b on the side.  
20  
21  
22  
23  
24  
26  
25  
Unit  
Fuse  
XTH-2500-12  
XTH-5000-24  
XTH-6000-48  
XTH-8000-48  
None  
300 A  
200 A  
300 A  
NTERNAL FUSE FOR THE TENDER  
I
X
4.5.2  
The internal fuse provides additional protection on certain models and does not preclude the  
requirement for cable protection closest to the battery. (see chapter following).  
The battery clamp fitted on the fuse (24) must have a  
match the centering lip of the ceramic isolation disc (23).  
in order to  
diameter of M10  
The internal fuse of the equipment (26) is always installed on the positive terminal (+). It  
will be fitted on the negative terminal in the event of connection of the + to the earth.  
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BATTERY SIDE CONNECTION  
-
4.5.3  
Before connecting the battery, carefully check the voltage and polarity of the battery  
using a voltmeter.  
Incorrect polarity or surge voltage may seriously damage the device.  
Prepare the batteries for connection: appropriate battery clamps, protection device (f), cable in  
good conditions with correctly fitted clamps.  
Fasten the black cable on to the negative pole (-) of the battery and the red cable on the open  
protection device (f).  
The battery cables must be protected by one of the following measures in all cases:  
- protection device (fuse) at each pole  
- protection device (fuse) on the pole connected to the earth  
- mechanical envelope making an accidental short-circuit impossible.  
When connecting the battery, a spark may occur when connecting the second pole. This  
spark is due to the load of the internal filtering capacity of the Xtender.  
When connecting the battery it is necessary to check that the configuration values of the Xtender  
conform to the recommendations of the battery manufacturer. Non-conforming values may be  
dangerous and/or seriously damage the batteries. The default values of the battery’s charge  
threshold limits are shown in fig. 3a and specified in the configuration tables. If they prove not to  
conform, it is necessary to modify them via the RCC 02/03 remote control before connecting the  
voltage sources on the AC input. Steca is not responsible for default values not corresponding  
with the recommendations of the manufacturer.  
If the factory settings are modified, the new values must be entered on the configuration table on  
p. 35 of this manual. The default values proposed by Steca are the usual values for gel batteries  
(VRLA or AGM).  
The calibre of the protection device (f) must be adapted to the cable section and also mounted as  
close as possible to the battery.  
ATTERY CABLE SECTION  
B
(minimum recommended):  
XTH3000-12  
XTH5000-24  
XTH6000-48  
XTH8000-48  
90 mm2  
90 mm2  
50 mm2  
70 mm2  
The cable sections recommended above are valid for lengths less than 3 m. Beyond this length it  
is strongly recommended to over-section the battery cables.  
The battery cables must also be as short as possible.  
It is always preferable to keep the cable at the negative pole of the battery as short as possible.  
The clamps must be carefully fixed and tightened sufficiently to guarantee minimum  
loss. Insufficient tightening may cause dangerous heating at the connection point.  
For safety reasons, we recommend an annual check on the tightness of all connections.  
For mobile installation the connections should be checked more frequently for tightness.  
The cabling and connection of the installation should only be carried out by an appropriately  
qualified professional. The installation material such as cables, connectors, distribution boxes,  
fuses, etc. must be adapted and must conform to the applicable laws and regulations the  
application under consideration.  
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ARTHING THE BATTERY  
E
4.5.4  
One of the two battery conductors can be earthed. This may be either the positive or negative  
pole. In all cases the installation must conform to the local regulations and usage or specific  
standards associated with the application.  
In case of earthing, the earthing conductor section must at least be equivalent to the section of  
the battery conductor. The earthing of the equipment must also adhere to these regulations. In  
this case the use of the additional earthing screw is recommended (fig. 2b (17)), which is located  
at the front of the device between the two lower fastening screws.  
ONNECTING THE CONSUMERS AT THE  
C
OUTPUT  
230 V AC  
4.5.5  
High voltages may be present on the connection terminals (13) and (14). Make sure that  
the inverter is deactivated and that there is no AC or DC voltage present on the AC IN  
terminals and battery terminals, before proceeding with the connection.  
The 230 V consumers must be connected on the “AC OUT” (14) connection terminals with the  
wire section conforming to the standards with regard to the rated current at the Xtender output  
(see fig. 1a). Distribution must conform to the local standards and regulations, and generally, be  
realised via a distribution table.  
The Xtender terminals are marked in the following way:  
N = neutral, L = live  
= protective earth (connected to the case of the device).  
Due to the source backup function (smart boost) the current at the output of the device  
may be higher than the rated current of the inverter. It is the sum of the current supplied  
by the additional source and the current supplied by the inverter. In this case, the  
dimensioning of the output cables will be carried out by adding the current indicated on  
the protection device (H) located on the upstream of the unit, to the nominal current of  
the inverter. (See fig. 1a and chap. 6.2.7 – p. 21)  
If the backup function at the source (smart boost) is not used, the calibre of the protection device  
for the output (F) will be established at a maximum value equal to the rated current of the inverter,  
or at the maximum value of the protection device at the input (H) if this is exceeds the rated  
current of the inverter.  
An additional earthing terminal (15) is present between the two fastening screws at the  
bottom of the unit. It can be used instead of a connection on the input terminals of the  
device, particularly when cable sections are used at the output that do not allow use of a  
three-wire cable (live earth and neutral) through the conduit glands of the connection  
cables of the input and output (AC IN and AC OUT), where when the earthing of one of  
the points of the battery requires a cable section greater than the the PE conductor  
section of the AC IN and/or AC OUT line.  
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ONNECTING THE  
C
SUPPLY SOURCES  
AC  
4.5.6  
The Xtender is intended to be supplied by alternative voltage sources such as the public grid or a  
generator. Check that the rated voltage of the source corresponds to the rated voltage (34) of the  
Xtender specified on the type plate (fig. 3b).  
The source must be connected to the input terminals marked “AC INPUT” (13) with sufficient wire  
section, depending on the power output of the source, and protected by a protection device of the  
appropriate calibre. This will be at the maximum equal to the current I AC in max (35) specified  
on the type plate (fig. 3b).  
The terminals are marked in the following way: N = neutral, L = live, PE = protective earth  
(connected to the case of the device).  
IRING AUXILIARY CONTACTS  
W
4.5.7  
These contacts are reversing contacts that are potential-free. The admissible currents and  
voltages for these contacts are 16 A / 250 V AC or 3 A/50 V DC max. The representation of the  
contact near the terminals corresponds to the status of the contact in idle mode (light indicator (5)  
off). The cabling of these auxiliary contracts depends solely on the application and cannot be  
described in this manual.  
The factory-set functions for these 2 auxiliary contacts are covered in the chapter 0 – p. .  
ONNECTING THE COMMUNICATIONS CABLES  
C
4.5.8  
The Xtender is equipped with a pair of RJ45/8 connectors that allow information transfer via a  
communication bus for different consumer types which have the proprietary protocol of Steca. In  
this network all parties in the network are connected in series (chain).  
The length of the communication bus cable must not exceed 300 m.  
In a system comprising a single Xtender, the connection of the RCC-02 or RCC-03 may be  
conducted without stopping the Xtender (warm).  
The communication bus will be used to interconnect other Xtender inverters in the case of a  
multi-unit application or to connect other types of users who have the proprietary protocol of  
Steca. In these cases, the installation must be switched off using the main “ON/OFF” button (1) to  
connect the units via the communication bus.  
The 2 switches for terminating the communication bus, “Com. Bus" (4) both remain in  
position T (terminated) except when both connectors are in use. In this case, and only in  
this case, both must be placed in the O open position. If one of the two connectors is not  
in use, the two termination switches (14) will be in position T.  
CONNECTING THE TEMPERATURE SENSOR  
(BTS-01)  
4.5.9  
The temperature sensor, BTS-01 is supplied with a 3 m cable fitted with RJ11/6-type plugs. It  
may be connected or disconnected at any time (including when the device is in use) using the  
corresponding socket (2) marked “temp. sens.” on the Xtender. Plug the connectors into the  
socket (2) until they click in. The temperature sensor sleeve may simply be glued onto the battery  
or directly next to it. The temperature sensor will be recognised automatically and the correction  
made immediately.  
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5 Energisation of the installation  
It is imperative that the closing cap for the connection compartment be installed and  
screwed tight before the installation is energised. There are dangerous voltages within  
the interior of the connection compartment.  
The connection of the Xtender must be carried out in the order given below. Any disassembly  
must be carried out in the reverse order.  
1. Connecting the battery  
Too high or inappropriate a battery voltage may seriously damage the Xtender. For  
example, installing a 24 V battery in the Xtender 3000-12.  
If the Xtender has been connected the wrong way around by accident (incorrect polarity  
of the battery) it is highly likely that the protection fuse inside the equipment may melt  
and will have to be replaced. If such is the case, it will be necessary to disconnect all the  
connections to the Xtender including the battery. If, after replacing the fuse, the Xtender  
proves not to work correctly after reconnecting the battery with the correct polarity, it will  
have to be returned to your distributor for repair.  
2.  
using the main ON/OFF switch (1). The Xtender is  
Putting the Xtender(s) in operation  
supplied and is ready for operation. If you require immediate start-up of the inverter when  
the battery is energised, the main switch (1) must be in the “ON” position and the  
configuration {1111} activated.  
: Activate the output protection device (F) if  
Connecting the consumers at the output  
existing, and/or press the ON/OFF button (41). The light indicator “AC out” (46) lights up  
3.  
4.  
or flashes (in the event of an absence of consumers).  
If an AC source (generator or network) valid in  
Activating the input circuit breaker(s)  
frequency and voltage is present at the AC input, the device automatically goes into  
transfer and will start to charge the batteries. The consumers at the output are therefore  
supplied directly by the power source present at the input.  
Your installation is now in operation. If particular configuration or adjustment is required by the  
system, it is recommended to carry this out immediately. Adjustments must be made with the  
help of the RCC-02/03 remote control. Please refer to the operating instructions for this  
accessory.  
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6 Description and functioning  
The Xtender is a sine wave inverter with a battery charger. It has been developed for use as a  
standalone installation to supply AC voltage (not connected to the grid) or as a continuous supply.  
6.1 Circuit diagram  
17  
K1  
100nF  
2,2nF  
2,2nF  
2,2nF  
2,2nF  
K3  
K4  
K2  
14  
13  
f
10nF  
10nF  
9
AC  
DC  
t
12  
f
10  
6
1x  
AC out  
AC in  
Charge  
ON  
1x  
1x  
2x  
1x  
RJ45  
8p  
1x Battery low  
2x  
3x  
4x  
O
T 4  
RJ11  
6p  
Temp.  
Remote  
On/Off  
8p  
7
a
Swiss Made  
Bus termination  
2
CAN bus  
3
e
6.2 Description of the main functions  
NVERTER  
I
6.2.1  
The Xtender is equipped with a high-performance inverter which supplies a perfect and very  
precise sine wave. Any unit designed for the 230 V/50 Hz public grid may connect to it without  
any problem, up to the rated power out of your Xtender. The inverter is protected against  
overloads and short-circuits.  
Thanks to the largely over-dimensioned performance level, loads of up to three times greater  
than the Xtender’s rated output can be faultlessly supplied for short periods of use, thus allowing  
motors to be started up without any problem.  
When the Xtender is operating the LED “ON” (43) is glowing.  
When the Xtender is in inverter mode, the LED “AC out” (46) is glowing. If it flashes, the inverter  
is in “load search” mode (see following chapter “Automatic load detection”).  
UTOMATIC LOAD DETECTION  
A
6.2.2  
In order to save battery energy, the Xtender inverter stops and automatically goes into load  
search when the detected load is lower than the sensitivity set by the configuration {1187}. It  
automatically goes back into operation when a power consumer greater than this value demands  
it. The indicator (46) flashes if the inverter is in “load search” mode, which also indicates that the  
AC voltage is present at the output in an intermittent form.  
In standby mode the system will thus consume minimal power from the battery (see table of  
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technical data p. 37). The detection threshold for the absence of loads can be adjusted according  
to the configuration range {1187} by means of the RCC-02/03 remote control. When the  
configuration is set to 0 the inverter will still operate even in the absence of any consumer.  
RANSFER RELAY  
T
6.2.3  
The Xtender can be connected to an alternative power source such as a generator or public  
network. When the voltage at the entry satisfies the voltage {1199+470} and frequency {1505-  
1506} parameters, the transfer relay will be activated, except where the input current limit{1107}  
is lower than the instantaneous current supplied by the Xtender inverter. If the limit has not been  
exceeded then the voltage present at the input of the Xtender is therefore available at the output  
for the consumers connected. At the same time the battery charger goes into operation. The  
sharing of energy between consumers and the battery charger is adjusted automatically (see  
chap. 6.2.6 – p. 21). The transfer relay will be deactivated when the input voltage no longer  
satisfies the configuration {1199} or {1432} min. and max. voltage and frequency at the input or  
when the current limit {1107} is exceeded, if the exceeding of this limit is prohibited {1436} It then  
passes immediately into inverter mode. In this case the loads are supplied exclusively by the  
battery via the inverter (see chap. 6.2.7 – p. 21).  
A delay before the opening of the transfer relay can be adjusted {1198}.  
This switching always takes place automatically. The switching always takes place without delay  
by default (UPS mode) and the equipment will pass into inverter mode once the voltage and  
frequency criteria at the input are no longer being fulfilled. The presence of increased dynamic  
loads (such as pneumatic angle grinders, etc.) may lead to an undesirable opening of the transfer  
relay due to the weakness of the source. In this case a delay in the opening of the transfer relay  
{1198} may be introduced via the RCC-02/03 remote control.  
The transfer normally takes place without any interruption when the generator stops. It would  
typically be 20 minutes in the event of the immediate loss of input voltage at “AC IN”.  
The maximum current of the transfer relay is 30 A (50 A for XTH 8000-48). This means that the  
permanent power of the consumers must be a maximum of 6,900 W to 230 V (11,500 W for the  
XTH 8000-48). It cannot be higher if the “Smart Boost” function is activated {1126} (see chap.  
6.2.7 p. 21). If the battery charger is in operation, part of this power will be used for the battery  
charge.  
When the transfer relay of the Xtender is active, the voltage at the output of the Xtender  
is equivalent to that which is present at the input and cannot be influenced or improved  
by the Xtender. The consumers are supplied by the source present at the “AC IN” input  
via the transfer relay.  
ATTERY CHARGER  
B
6.2.4  
The battery charger is designed in such a way as to guarantee charging of the battery that is as  
complete as possible. The charging process is at four levels by default and guarantees optimum  
charging of the batteries. The charging current is given by the configuration {1138} and can be  
adjusted continuously from 0 to the nominal value with the help of the RCC-02/03.  
ATTERY CHARGER  
B
6.2.5  
The battery charger for the Xtender is completely automatic and is designed in such a way as to  
guarantee an optimum charge for the majority of the lead-acid or gel batteries. Once the transfer  
relay is activated, the battery charger goes into operation and the charge indicator (44) lights up.  
If the battery voltage is lower than the critical disconnection threshold {1488} operation of  
the charger will be automatically prevented. Only the transfer relay is authorised to  
operate in this case. The battery must then be recharged by an external source up to a  
voltage higher than the critical disconnection threshold in order to allow the Xtender  
charger to operate.  
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The charge cycle, programmed by default,  
as shown in the example described in the  
figure opposite, runs automatically.  
The line (28) indicates the development of  
the battery voltage.  
ACin=OK  
{1138}  
{1156}  
{1140}  
{1159}  
The lower line (29) indicates the battery  
current (input and output).  
28  
29  
The cycle starts with a continuous current  
charge (a) adjusted by default according  
to the configuration {1138}. If the ambient  
temperature is increased or the ventilation  
blocked, the current may be reduced and  
become lower than the selected current.  
Once the absorption voltage {1156) is  
reached, the cycle passes to voltage  
a
e
d
Cycle de charge simplifié, sans limitation de  
courant d'entrée  
adjustment mode (d), known as the absorption phase, the duration of which is set by the  
configuration {1157}. The minimum interval between two absorption cycles is limited by the  
configuration {1161).  
At the expiry of the absorption time, or if the absorption current is lower than the configuration  
{1159}, the voltage is set to a lower value {1140}. This phase (e) is known as the maintenance or  
“floating” phase.  
Given the limiting function for the input current (see the following p. 21), it is perfectly normal for  
the charge current to be lower than the selected current if the limit of the AC input current {1107}  
is reached (b). In this event the AC IN indicator (45) flashes.  
If the “smart boost” function is activated {1126} and the power required by the consumer exceeds  
the power of the source, the battery will be discharged (c) despite the presence of the grid or the  
generator. In this case the LED “charge” (4) goes out. The consumers must ensure that they  
have average consumption that is less than the power of the source (generator or public grid) in  
order to avoid a complete discharge of the battery. These situations are set out in the figure  
below.  
ACin=OK  
{1156}  
{1140}  
{1143}  
28  
{1138}  
In  
0
29  
Out  
a
d
e
a
b c a  
d
e c  
Fig 3a  
Charge cycle example with input current limitation "smart boost”  
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If the BTS-01 temperature sensor is used, the voltage adjustment thresholds for the battery are  
corrected in real time by means of the battery temperature. The value of this correction is set by  
the configuration {1139} in the configuration table p. 35.  
Much more complex charge profiles or exclusion of the charger can be configured using  
the RCC-02/03 remote control.  
Configuration of the battery is the responsibility of the operator. Incorrect configuration  
that does not correspond to the charging methods of the battery recommended by the  
manufacturer may be dangerous and/or considerably diminish the battery service life. If  
the factory settings are modified, it is imperative that the new values be entered in the  
configuration table p. 35  
IMITING THE INPUT CURRENT BY LIMITING THE CHARGER CURRENT  
L
6.2.6  
In order to best use the resources available at the input (depending on the generator size or the  
grid output) the Xtender has a system known as power sharing.  
This is a system that allows the current of the charger to be limited – from its target value {1138}  
to 0 – according to the current used at the output in relation to the maximum current available at  
the input set by the configuration {1107}. The greater the current at the output, the more the part  
of the current at the input assigned to charging the battery is reduced. If the current exceeds the  
limit, the transfer relay will be open and the consumers therefore supplied exclusively by the  
inverter, as long a the output current exceeds the limit of the input current. Exceeding the limit  
value may be authorised by the configuration of {1436}.  
This system allows the sharing of power available by giving priority to the AC output (AC out) and  
to the consumers who are connected to it. The charger will only use the power not utilised at the  
output to ensure that the battery is charged. Once the charge current decreases by going into  
“power sharing” mode, the indicator (45) flashes.  
The limit value of the input current is set by the configuration {1107} and may be adjusted via the  
RCC-02/03 remote control.  
In the case of mobile applications the installation of an RCC-02/03 remote control is  
recommended, in order to be able to adapt the value of the input current limit if  
necessary, for each connection to a protected grid.  
.
If the power usage at the output is greater than the input current value, the Xtender  
cannot limit the current. This situation will then lead to the stoppage of the generator due  
to overcharging or will release the upstream protection circuit for the Xtender. This major  
drawback can be prevented by using the “smart boost” function described below.  
HE INVERTER AS SOURCE BACKUP SMART BOOST FUNCTION  
)
T
(“  
6.2.7  
The combined usage of the power sharing function and the smart boost function allows this  
drawback to be overcome as mentioned above. The source backup function supplements  
efficiently the charger current limiting function in order to ensure optimum protection of the fuse  
upstream of the device. This system proves to be a decisive advantage particularly in all mobile  
systems (boats, leisure vehicles and service vehicles) that are frequently connected to sources  
with a limited value such as a portable or camping power supply. Despite a limited source, all the  
greater power applications downstream of the Xtender remain functional.  
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When this function is activated, the battery can be fully discharged despite the presence  
of the grid or the generator. The average power consumed by the user must not exceed  
the power of the source, at the risk of discharging the battery.  
The smart boost function is deactivated by default. To activate the function the RCC-02/03  
remote control is required. When this function is activated {1126} it allows the current from the  
battery to be supplied to the user in order to guarantee that the current at the input of the device  
does not exceed the limit set {1107}.  
If the input current limit is exceeded, the transfer relay will be opened immediately, thereby  
protecting the upstream protection device. If the exceeding of the input current value limit is due  
to a short-circuit downstream, the transfer relay will remain activated and the protection upstream  
of the Xtender (H) will be requested.  
The installation cabling must take this particular function into account, which allows a current  
equivalent to the sum of all power outputs in the inverter and the AC source to be available at the  
output.  
If you have, for example, a 5 kW (22 A) source and an Xtender of 5 kW, the power available at  
the output will be 10 kW. The downstream cabling must therefore be dimensioned accordingly. In  
this example, the output cable must be dimensioned to support a current of 45 A. A dimensioning  
table, fig. 1a, will help you to determine the output currents that dimension the protection devices  
and the cable sections to be applied.  
The Xtender can supply up to 10x the limit value of the input current {1107}.  
If the extender is connected to a generator, this must have a power at least equal to half  
of the power of the Xtender(s) to which it is connected.  
TENDER PROTECTION  
X
6.2.8  
The Xtender is protected electronically against overloads, short-circuit, overheating and reverse  
current (cabling of a voltage source on AC out).  
The battery is protected in all cases against deep discharge. The indicator (52) flashes once  
when the battery has reached the disconnection threshold {1108} and the inverter will stop some  
time after {1190}. This threshold can be corrected dynamically depending on the instantaneous  
power supplied by the inverter if the configuration {1191} is activated. In this case the value of the  
dynamic correction is set by the parameter {1109}. The inverter will stop immediately if a critically  
low voltage value set by the configuration {1188} is reached. The inverter will restart automatically  
when the battery voltage has reached the restarting threshold {1110}.  
If the inverter is repeatedly encountering this situation {1304} in a short period {1404}, it will stop  
permanently and will only start again via an operator’s manual control.  
In the event of overload or short-circuit at the output, the inverter stops for some seconds and  
restarts. If the inverter is repeatedly encountering this situation {1300} in a short period, it will  
stop permanently and will only start again via an operator’s manual control.  
If the battery voltage exceeds the value set by the configuration {1121}, the inverter stops and  
starts up again when the voltage is less than {1110}. If the Xtender is repeatedly encountering  
this situation {1303} in a short period {1403}, it will stop permanently and will only start up again  
via an operator’s manual control.  
A battery voltage greater than 1.66 x the nominal voltage may lead to significant damage  
or destroy the device.  
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Overheating of the Xtender: Insufficient ventilation, increased ambient temperature or obstructed  
ventilation may lead to overheating of certain internal components of the unit. In this case, the  
device will automatically limit its power output as long as this abnormal situation persists.  
The Xtender is protected by the internal fuse from incorrect polarity (24 V and 28 V versions). The  
Xtender XTH-3000-12 does not have an internal fuse and can be protected by an external 400 A  
fuse.  
UXILIARY CONTACTS  
A
6.2.9  
The Xtender has two dry reversing contacts that are potential-free. The status of the contacts in  
idle mode (deactivated) is indicated by the annotations, N.C. = normally closed and N.O. =  
normally open.  
Maximum contact loads: 230 Vac / 24 Vdc: 16 A or:  
> 36 Vdc / 3 A  
These dry contacts are programmed by default for the following functions:  
Contact no. 1 (AUX1) : alarm contact by default. It is activated when the inverter is out of service  
or is working at reduced performance, either because of manual control or if there is an  
operational fault such as overload, undervoltage of the battery, overtemperature, etc.  
Contact no. 2 (AUX 2): The contact has a load shedding function by default and is activated when  
the battery voltage corresponds to the configurations {1356/1357}.  
These auxiliary contacts can be freely programmed by the RCC-02/03 remote control for various  
applications.  
The functions of the two auxiliary contracts can be modified and programmed variously with the  
help of the RCC-02/03 control.  
If the operator or installer requires different behaviour for the auxiliary contacts, they are both  
freely and individually programmable depending on the battery voltage and the inverter status  
and the internal clock.  
The intelligent programming of the auxiliary contacts allows many applications to be considered  
such as:  
Automatic startup of the generator (two or three wires)  
Automatic load shedding of the inverter (2 sequences)  
Global or individual alarm  
Automatic disconnection (load shedding) of the source  
HE REAL TIME CLOCK  
T
6.2.10  
The Xtender has a real time clock that allows the functioning of the auxiliary contacts to be  
managed, in particular. This clock must be adjusted via the use of the RCC-02/03 remote control.  
If you wish to retain the adjustment of the clock even if the installation is out of operation (button  
1)) or in the absence of a battery, a lithium-ion type 3.3 V disc battery (CR-2032) must be  
inserted into the battery carrier (5) which is on the left of the junction box.  
EMOTE CONTROL VIA DRY CONTACT  
R
6.2.11  
The functioning of the Xtender may be interrupted by opening the connection, normally between  
the two terminal points “REMOTE ON/OFF”, fig. 8a-(7). Operation will recommence when this  
connection is re-established. The device is delivered with a bridge between the 2 points of this  
terminal.  
It is also possible to control this function according to the different variants indicated in fig. 8b. If a  
variant is used, the jumpers (b) must be positioned at 1 a-b and 2 a-b.  
Operating voltage: Max. 60 V eff. (I max. 30 mA)  
In multi-unit configurations (see below) the interruption of operation of just one of the system’s  
units by the cabled control (7) involves the immediate interruption of operation of the other units  
of the system. This input can be used, for example, as an emergency stop.  
6.3 Multi-unit configurations  
Several Xtenders can be used in the same system, either to create a three-phase system or to  
increase the power output of a single or two phases. The implementation of this configuration  
requires particular precautions and it must be installed and commissioned by qualified personnel  
only.  
The inverters selected must be of the same type and the same rated power output. There is a  
shared battery bank.  
In these multi-unit system, the units must be interconnected via a communication bus connected  
to the connectors (3) by cable (art. no. CAB-RJ45-2) of a maximum length of 2 metres.  
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Interrupting this connection in a multi-unit system will lead to the stoppage – after 5 seconds – of  
all the units in the system.  
Various application examples are described from fig. 12 to fig. 19.  
It is important to read and adhere to the descriptions associated with each of the figures  
mentioned above  
In configurations carrying several Xtenders, each unit is controlled independently using the  
ON/OFF push button (41). When the on/off control is given via the RCC-02/03 remote control, it is  
applied simultaneously to all units.  
HREE PHASE SYSTEM  
T
-
6.3.1  
Three Xtenders of the same type can be used and combined in order to establish a three-phase  
grid. An example of Fehler! Verweisquelle konnte nicht gefunden werden. is given at figs. 13.-  
14.  
When 3 Xtenders are cabled to form a three-phase grid, the cabled phases at the input determine  
the jumper position for selecting the phase (10). It is vital to determine and select the phase for  
each Xtender. If the grid is not available at the input of the master unit (phase 1) all the units of  
the system pass into inverter mode. If only a single-phase source is available, it will be connected  
to phase 1. The other two phases will therefore be supplied by the other two working units in  
inverter mode.  
NCREASING THE POWER AND CONNECTION IN PARALLEL  
I
6.3.2  
Up to three Xtenders can be cabled in parallel in order to increase the system’s rated power  
output. In this configuration, all the ACin inputs of the Xtender must be cabled. One of the units  
functions as master and will decide on the operation or suspension of the units in parallel  
according to the consumer’s power demand. The yield of the installation is therefore still optimal.  
An example of parallel connection is given in fig.12. and the comments on p. 30.  
OMBINED SYSTEM  
C
6.3.3  
It is possible to combine a three-phase system with one or several phases made up of 2 or 3  
Xtenders in parallel. An example of cabling is given at fig. 15.  
It is therefore possible to combine up to nine Xtenders by running three Xtenders parallel in a  
three-phase grid. An example of cabling is given in figs. 16 to 18 and the comments on p. 31.  
6.4 Accessories  
ONTROL CENTRE AND  
C
REMOTE CONTROL DISPLAY  
RCC-02, RCC-03 (  
)
6.4.1  
An RCC-02/03 remote display and programming unit can be optionally connected to the Xtender  
via one of the two RJ45-8-type “Com. Bus” (3) connectors.  
These connectors may only be used for connecting a CAN-ST compatible accessory, excluding  
any other connection such as LAN, Ethernet, ISDN, etc.  
The RCC-02/03 control centre is vital for modifying device configurations.  
It also allows the following functions:  
Display of function synopsis  
Display of the measured operational values (current / voltage / power output, etc.)  
Updating of software or implementation of customised software  
Storage of inverter configuration  
Updating of inverter configurations  
Storage of error message history  
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The features of the RCC-02 and the RCC-03 are the same. They only differ in their external  
appearance. The RCC-02 is designed for wall mounting, whereas the RCC-03 is designed as a  
tabletop device.  
The RCC-03 model must be taken off the table to allow access to the SD card slot (during  
updating, for example).  
RCC-02: Dimensions: H x W x D / / 58 x 51.5 x 22 mm  
RCC-03: Dimensions: H x W x D / / 58 x 51.5 x 22 mm  
The two remote control models are delivered with a 2 m cable by default.  
Cables of specific lengths (5 m, 20 m and 50 m) can be ordered.  
The article no. is as follows: CAB-RJ45-xx. The length in metres is specified as xx  
Up to 3 RCC-02/03 remote controls can be connected in series on the communication bus of one  
Xtender or an Xtender multi-inverter system. In a system comprising a single Xtender, the  
connection of the RCC-02 or RCC-03 may be conducted without stopping the Xtender (warm).  
When connecting an RCC-02/03 remote control in a multi-unit system, it is recommended that all  
units in the system be stopped and that the communication bus on the device on which the  
connection is being made be terminated.  
The 2 switches for terminating the communication bus, “Com. Bus" (4) both remain in  
position T (terminated) except when both connectors are in use. In this case, and only in  
this case, both must be placed in the O open position. If one of the two connectors is not  
in use, the two termination switches (14) will be in position T.  
TEMPERATURE SENSOR  
BTS-01  
6.4.2  
The operating voltages for lead batteries vary depending on the  
temperature. A temperature sensor is optionally available to correct the  
battery voltage and guarantee an optimum charge whatever the battery  
temperature. The correction factor given by the correction of the sensor  
is set by the configuration {1139}  
Article no. for the temperature sensor (including a cable of 3 m): BTS-01.  
Dimensions: H x W x D / / 58 x 51.5 x 22 mm  
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7 Control  
7.1 Main on/off control  
This switch (1) interrupts the electronic supply and all the Xtender peripherals. The residual  
consumption on the battery is therefore less than 1 mA.  
The ON/OFF switch is used only for the complete stoppage of the whole system.  
7.2 Display and control parts  
The Xtender has a ON/OFF button and light indicators  
at the front of the device, allowing clear identification of  
the operating mode.  
The ON/OFF button allows the startup or complete  
(41)  
stoppage of the system such as it has been  
programmed. In the systems comprising several units,  
each unit is started or stopped individually. For a  
simultaneous startup of all the units use the dry contact  
control (see chap. 0 – p. 23) or the ON/OFF button of  
the RCC-02/03 remote control.  
Even when the equipment has stopped,  
dangerous voltages may be present at  
the Xtender input.  
This indicator lights up when the equipment has  
(42)  
been stopped manually using the ON/OFF button (41).  
It also allows the cause of an unintentional stoppage of  
the device to be indicated via the different flashes, the  
imminence of a stoppage or the temporary limitation of  
its performance.  
The table below describes the type of fault according to  
the number of flashes on the indicator (42)  
Indicated alarm  
Comment  
1x (Imminent) stoppage as a If the device has not yet stopped, it is recommended to  
result of low battery voltage. disconnect all non-priority consumers and/or start up the  
generator. If the Xtender has stopped it will restart  
automatically when the battery voltage has reached the  
correct value again {1110}. It can be restarted manually  
using the ON/OFF button (41) as long as the battery voltage  
is higher than the critical threshold {1488}.  
See also chapter 6.2.8 – p. 22.  
2x Stoppage due to overload in In this event the equipment will make several attempts  
the equipment, due to either restart {1133} every few seconds and will stop if the overload  
a short-circuit or too high a remains (see chap. 6.2.8 – p. 22). It is vital to eliminate the  
load for the inverter.  
cause of the overload without restarting. Restarting is carried  
out manually by pressing the button (41).  
3x Decrease in the rated output This may be due to too great a load for the device, at too  
of the device due to a too high an ambient temperature or counteracted or obstructed  
high internal temperature.  
ventilation. The power output of the device will therefore be  
limited to around 50% of the Pnom. including in charger  
mode or smart boost mode. 6.2.8 – p. 22.  
4x Battery voltage higher than  
Check the cause of this excess voltage. The equipment will  
the maximum limit set by the restart automatically when the voltage falls below the  
configuration {1121}. threshold value {1122}.  
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5x No  
transfer.  
Insufficient In this case, the Xtender remains in operation in inverter  
power from the source  
mode and does not allow the transfer relay to close. You  
must increase the input current limit {1107}, or authorise the  
exceeding of this limit {1436} or authorise backup on the  
source {1126}, or disconnect some consumers (decrease of  
loads).  
6x Startup prevented due to Voltage is present at the device output. Check your cabling:  
unwanted voltage at the correct the fault and start the installation again using a  
device output.  
manual control on the button (41).  
7x Indicates missing voltage on Check the input protection devices (H) for all the system  
one of the units of the units.  
system in  
a
multi-unit  
configuration.  
(43) This indicator is glowing continuously when the device is working.  
It flashes when the equipment is temporarily stopped due to a fault displayed by the indicator (42)  
or a ON/OFF control cabled at the ”Remote ON/OFF” input (7), or when the equipment is  
intentionally put to idle mode by the master unit in a multi-inverter parallel system (see chap.  
chap.6.3.2 - p. 24).  
The equipment will restart automatically when the conditions that led to the temporary  
stoppage have gone away.  
This indicator is glowing continuously when the charger is working and has not yet reached  
(44)  
his absorption phase.  
It flashes twice during the absorption phase and once during the floating phase.  
If the smart boost mode has been activated, this indicator goes out temporarily when source  
backup is required by users (loads).  
(45) This indicator is glowing continuously when a n alternative voltage with correct values, either  
in frequency {1112-1505-1506}, or in voltage {1199} is present at the AC IN input of the device  
and the current limit set by the user has not been reached. It flashes when the current limit at the  
input {1107} set by the user has been reached. In this case the charger current is reduced in  
order to guarantee priority supply to the users (see chap. 6.2.6 p. 21). If the input current is  
exceeded nevertheless, the Xtender goes back to inverter mode (transfer relay open) and the  
indicator (42) will keep flashing as long as the user current exceeds the limit value of the input  
current {1107}.  
If the smart boost mode (see chapter 6.2.6 – p. 21) is used and the inverter is part of the user  
supply – therefore the battery is discharged – the “charge” indicator (44) will be glowing.  
This indicator is glowing continuously when an alternative voltage of 230V is present at the  
(46)  
equipment output. It flashes when the device is in “load search” mode according to chapter 6.2.2  
– p. 18.  
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8 Maintenance of the installation  
With the exception of the periodic checking of connections (tightening and general condition) the  
Xtender does not require any special maintenance.  
8.1 Product recycling  
The models of the Xtender series conform to the European directive 2002/95/EC on hazardous  
substances and does not contain the following elements: lead, cadmium, mercury, hexavalent  
chrome, PBB or PBDE.  
To dispose of this product, please use the service for the collection of  
electrical waste and observe all applicable obligations according to the place  
of purchase.  
9 EC declaration of conformity  
The inverter and accessories described in this manual comply with the following standards:  
EN 61000-6-1, EN 61000-6-3, EN 55014, EN 55022, EN 61000-3-2, Dir. 89/336/EEC,  
LVD 73/23/EEC, EN 50091-2, EN 60950-1.  
CH -1950 Sion, 31 January 2007  
STUDER Innotec (R. Studer)  
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10 Figure comment tables  
Fig. Description and comment  
1a Dimensioning table for the downstream protection device (F). See chap. 4.5.5 – p. 15.  
1b Assembly order for connecting the battery.  
The assembly order for the battery connections must be adhered to. Bolts 20 and 21 are  
of different sizes:  
(21): M8x45 for fastening on the fuse  
(20):M8x35 for fastening without a fuse  
If there is no fuse installed, the two bolts are of identical length: M8x35  
The battery clamp fitted on the fuse (24) must have a diameter of M10 in order to match  
the centering lip of the ceramic isolation disc.  
Ensure that the battery connections are tightened sufficiently.  
2a Dimensions and fastening the device  
The support (wall) must be appropriate for supporting the increased weight of the device  
without any risk.  
2b Installation distance  
Insufficient distance or an increased ambient temperature can reduce the rated power  
output of the device.  
3a Battery charge cycle  
Charge cycles that are more complex than those described in chap. 6.2.4 – p. 19 of this  
manual may be programmed via the RCC-02/03 remote control.  
Simplified battery charge cycle:  
See chapter 6.2.4 - p. 19.  
3c Type plate and series no.  
See chapter 13 - p. 34.  
The intactness of this label is vital for any possible warranty claims. It must not be altered  
or removed.  
4a Device connection box  
See chapter 3.6.2 – p. 8.  
4b Control table See chapter 7.1 - p. 26.  
5a 12 V battery: connection in series and in parallel / series for 2 V cell  
5b 12 V battery: connection of 12 V battery in parallel  
5c 24 V battery: connection in series and in parallel / series for 2 V cell  
5d 24 V battery: connection in series and in parallel / series for 12 V battery block  
6a 48 V battery: connection in series and in parallel / series for 12 V battery block  
6b 48 V battery: connection in series for 12 V battery block  
6c 48V battery: Series connection of 2V cell  
6d 48 V battery: connection in parallel / series for 2 V cell  
7
Xtender circuit diagram  
8a Single-phase installation (AC and DC part)  
HIS EXAMPLE ILLUSTRATES THE MOST ROUTINELY USED INSTALLATION ALLOWING THE  
T
,
10.1.1  
ATTAINMENT OF AN EMERGENCY SYSTEM OR A HYBRID SYSTEM REMOTE SITES  
(
)
ENSURING THE SUPPLY IN SINGLE PHASE FROM A GENERATOR AND OR THE BATTERY  
-
/
WHEN THE  
SOURCE IS ABSENT  
EE ALSO CHAPTER  
. S  
AC  
4.1.2 – p. 10.  
8b ON/OFF remote control variants  
This example illustrates the various options for connecting the “REMOTE ON/OFF” input  
(7), enabling the ON and OFF controls of the Xtender via a contact or a voltage source.  
See also chap. 6.2.11– p. 23.  
The maximum length for this control should not exceed 5 m.  
8c Installation with three-phrase source and secured single-phase output – AC and DC  
part  
In this example, the three-phase users will only be supplied when the generator is in  
operation.  
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Fig. Description and comment  
9a Fixed installation with plug connection to the single-phase source – AC part  
Special feature: The connection of the neutral upstream and downstream of the Xtender  
(C) is prohibited in this configuration (presence of a plug upstream). See also chapter  
6.2.11 – p. 23.  
9b Fixed single-phase installation with connection by plug to a three-phase source –  
AC part  
Special feature: The connection of the neutral upstream and downstream of the 'Xtender  
(C) is prohibited in this configuration (presence of a plug upstream). See also chapter  
6.2.11 – p. 23.  
10a Example of installation in a vehicle (AC part)  
Special features: The connection of the neutral (C) is not permitted (presence of a  
socket upstream). The earth-neutral connection is absent in inverter mode (neutral stand-  
alone system). The safety is guaranteed by the equipotential bonding (frame). The  
automatic re-establishment of the earth-neutral connection downstream of the device in  
inverter mode can be programmed. Consult the table of figures, item (V).  
See also chapter 4.2.3 – p. 11.  
10b Example of installation in a boat without an isolation transformer – AC part  
Special feature: Where there are multiple sources, for example connection to the dock  
and on-board generator, a source reverser (X) guaranteeing switching with phase and  
neutral interruption must be installed.  
11 Example of a hybrid installation:  
This is the most up-to-date system used that enables establishing an emergency system  
or a hybrid system (grid-remote sites) ensuring a single-phase supply from a generator  
and/or the battery.  
Special feature: In a hybrid installation, the sources for recharging a battery (k-m) are  
connected directly to the batterie via their own control system. This does not interfere with  
the Xtender charger. See also chapter 4.1.1 – p. 9.  
12 Example of parallel connection of 2 or 3 Xtenders  
Only Xtenders of the same power output may be connected in parallel.  
Cabling precautions: The cable lengths and sections of AC in input (A) and AC out output  
(B) must be the same for all inverters in parallel in the same phase.  
Variant: The sum of the lengths of the cables (A1) + (B1) of Xtender 1 must be the same  
as the sum of the lengths of the cables (A1) + (B1) of Xtender 2, and ditto for Xtender 3  
The AC input for each Xtender must be protected individually by a protection device (H)  
of the appropriate calibre.  
The protection device at the output of the Xtender (F) can be shared and of appropriate  
calibre at the sum of the currents of the devices in parallel.  
If necessary, the ON/OFF remote control (7) will be implemented on only one of the  
devices of the installation and suspends or authorises the operation of all the Xtenders in  
the installation.  
13 Example of three-phase cabling of 3 Xtenders – three-phase input  
Special features: When 3 Xtenders are cabled to form a three-phase grid, the cabled  
phases at the input determine the jumper position for selecting the phase (10). It is vital to  
determine and select the phase for each Xtender.  
See also chapter 6.3.1 – p. 24.  
The comments for fig. 12 - 3 to 7 are valid.  
14 Example of three-phase cabling of 3 Xtenders – single-phase input  
Special feature:  
6.3.1 – p. 24.  
The comments for fig. 13 are valid.  
15 Example of three-phase cabling for input and output with reinforced phase  
Special feature: This installation allows a three-phase supply with a reinforced phase The  
reinforced phase may be incorporated on two or even three inverters in parallel. The  
protection device at the output on which 2 or 3 Xtenders are cabled must be calibrated  
according to the sum of the maximum currents of the devices in parallel.  
The comments for fig. 12 to 14 are valid.  
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Fig. Description and comment  
16 Example of cabling of 9 Xtenders in three-phase and parallel – AC part  
Special feature: In fixed high power installations, it is advised that a shared neutral be  
retained, distributed to all parties in the grid (see (C))  
The comments for figs. 12 to 15 are valid.  
17 Example of cabling of 9 Xtenders in three-phase and parallel – DC part (distribution  
bar)  
18 Example of cabling of 9 Xtenders in three-phase and parallel – DC part in star  
formation  
11 Figure element tables  
Elem. Description  
Comment  
a
RCC-02/03  
remote control  
This device allows complete configuration of the installation as well  
as displaying the system behaviour. It is recommended but not  
necessary for the installation to function well. See chapter 6.4 -  
p.24.  
b
Battery  
The battery capacity is constituted according to figures 5a to 6d  
based on the required voltage.Note: It is vital that the voltage and  
the polarity of the battery be checked before connecting to the  
inverter. An overload or incorrect polarity could seriously damage  
the Xtender. Correct dimensioning of the batteries is essential for  
troublefree operation of the system. See chapter 4.3.1 - p. 11.  
Communications cable. Only an original cable supplied by Steca  
may be used. The total length of the communications cable must  
not exceed 100 m for 3 x RCC-02/03 or 300 m for a single RCC-  
02/03.  
A fuse-type device, thermal circuit breaker or magnetic-thermal  
circuit breaker (see fig. 8a) must be installed on at least one of the  
two battery conductors. It will ideally be placed on the positive pole  
of the battery and as close as possible to this. The calibre of the  
device is selected according to the cable section used.  
If the negative pole of the battery is not earthed, it must also be  
protected by such a device.  
e
f
Communications  
cable  
Protection  
devices  
g
Battery cables  
(positive)  
The battery cables must be of the correct section and appropriately  
set and tightened at the two extremities. They must be as short as  
possible, particularly for the negative pole. The total length of the  
cables must not exceed 6 m.  
h
j
k
Distribution bar  
Distribution bar  
Wind-powered  
generator  
Positive pole of the battery  
Negative pole of the battery  
One or more wind-powered generators with their own regulation  
system may be used to directly charge the battery. Its dimensioning  
does not depend on the Xtender and does not interfere with it.  
l
m
Solar generator  
One or more solar-powered generators with their own regulation  
system may be used to directly charge the battery. Its dimensioning  
does not depend on the Xtender and does not interfere with it.  
A control device may be connected to the terminals (7) of the  
Xtender. See chapter 6.2.11 - p. 23.  
The length of the connection cable must not exceed 5 m.  
The sensor is placed in immediate proximity to the battery. If the  
installation comprises several Xtenders, a single sensor is  
connected to one of the units. The battery voltage level will be  
corrected by means of the ambient temperature. {1139}.  
r
t
Remote control  
via dry contact  
BTS-01  
temperature  
sensor  
u
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Elem. Description  
Comment  
A
B
C
Input supply  
cable  
The section is determined by means of the maximum current at  
source and the protection device (H). In multi-unit systems, cables  
(A) of the same phase must have the same length and section (see  
comment fig. 12-2/3).  
Output supply  
cable  
In multi-unit systems, cables (B) of the same phase must have the  
same length and section (see comment fig. 12-2/3). The section  
must be selected by means of the Xtender’s output current given  
on the type plate and the protection device selected for the input  
(see fig. 1a).  
Connection of the See chapter 4.2 - p. 10.  
neutrals In a fixed installation where the neutral is connected to the earth at  
a single installation point upstream of the Xtender, it is permissible  
to carry out a connection of the neutrals in order to preserve an  
unchanged earthing system downstream, independent of the  
operating mode of the Xtender. This choice shows the advantage  
of keeping the differential protection devices downstream of the  
Xtender.  
This connection (C) is not permitted if a socket is installed  
upstream of the Xtender.  
D
E
Differential circuit A protection device must be installed downstream of he source (G  
breaker  
or U) according to the local requirements and in compliance with  
the applicable regulations and standards.  
Earth-neutral  
The neutral is earthed at a single point of the installation,  
connection bridge downstream of the source and upstream of the protection device(s)  
at the default current (DDR). When several sources are available,  
each source must have an earthed neutral. If the source has to be  
retained with an isolated earthing system (IT) the applicable local  
provisions and regulations must be applied.  
F
AC output  
protection  
devices for the  
Xtender  
A protection device dimensioned in dependence of the cable  
section used may be installed downstream of the Xtender (main  
circuit breaker before distribution). The cable section is to be  
dimensioned according to the calculation table of maximum output  
current (fig. 1). The Xtender has an internal current limitation the  
value of which is stated on the type plate (35).  
G
H
Generator  
The generator is dimensioned according to the requirements of the  
user. Its rated current will determine the configuration adjustment  
{1107} “maximum current of the AC source”.  
The protection device at the input of the Xtender must be  
dimensioned according to the power output of the source at the  
cable section used. It will not exceed a calibre equivalent to the  
input current “I AC in” given on the type plate of the unit (35).  
Protection  
devices at the  
Xtender input  
J
K
Connection plug / If the Xtender is connected to an AC source by means of a plug,  
socket  
the connection cable must not exceed a length of 2 m, and the  
socket must remain permanently accessible. The socket will be  
protected by a protection device of appropriate calibre. The  
connection of the neutrals (C) is prohibited in this case.  
L
P
R
S
Secured grid  
Distribution to the users supplied by the grid or the generator when  
this is present or by the Xtender within the limit of its power output  
from energy stored in the battery. This distribution is carried out in  
conformity with the local standards and regulations.  
Installation and Operating Instructions 723.932 Xtender V0.511  
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Xtender  
Elem. Description  
Comment  
T
U
V
Non-secured grid Distribution to users supplied exclusively via the present grid or the  
generator.  
This distribution is carried out in conformity with the local standards  
and regulations.  
Public grid  
The connection to the public grid imposes adherence to the local  
standards and regulations at the responsibility of the installer. The  
installation should, in principle, be checked and approved by an  
official body.  
Automatic earth-  
neutral  
connection  
This connection is deactivated by default. In may be used in certain  
specific cases for automatically re-establishing the neutral system  
type TT (TNC, TNS, TNC-S) when the Xtender is in inverter mode.  
The activation is carried out via RCC-02/03 remote control  
configuration {1485}. This operation may only be carried out by  
qualified personnel, under the responsibility of these personnel,  
and in conformity with the local standards and regulations.  
This device (optional) is generally used to reduce the risk of  
electrolytic corrosion due to the direct current when a boat is  
connected at the dock.  
W
X
Galvanic isolator  
Source reversing When the installation has more than one supply source, it is  
switch  
necessary to install a switching device between the sources,  
simultaneously switching the neutral and the phase(s) of these  
sources. In all cases this device (manual or automatic) must  
guarantee interruption of the connected source before its  
connection to another source.  
Y
Isolation  
transformer  
This device (optional) prevents the risk of galvanic corrosion due to  
direct currents when a boat is connected at the dock.  
Installation and Operating Instructions 723.932 Xtender V0.511  
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Xtender  
12 Control and display parts for the Xtender (fig. 4b)  
See chapter 7.1 - p. 26.  
Pos. Deno Description  
Comments  
minat  
ion  
41 ON/OF ON/OFF button  
F
The ON/OFF button allows the startup or complete  
stoppage of the system such as it has been programmed.  
When there are several units in the same system, each unit  
must be started up or stopped individually using this button.  
42 OFF  
43 ON  
Light indicator for When the light indicator flashes it indicates the cause of the  
stoppage of the  
unit  
stoppage of the unit, its imminent stoppage or the limitation  
of its rated power output according to chapter 7.1 - p. 26.  
Light indicator  
showing that the  
equipment is in  
operation  
This indicator is glowing continuously when the device is  
working. It flashes when the equipment is at a temporary  
stop. Note: The equipment will restart automatically when  
the conditions that led to the temporary stoppage have gone  
away.  
44 Charg Light indicator  
This indicator is glowing continuously when the charger is in  
operation and has not yet reached the absorption phase.  
It flashes twice during the absorption phase and once during  
the maintenance phase.  
e
showing that the  
battery is being  
charged  
If smart boost mode has been activated it is possible that  
this indicator will go out temporarily when source backup is  
required by users. (See chapter 6.2.7 - p. 21)  
45 AC in Light indicator  
showing the  
This indicator is glowing continuously when an alternative  
voltage with correct values is present at the AC IN input (13)  
of the device and the current limit {1107) set by the user has  
not been reached. It flashes when this limit is reached (see  
chapter 6.2.6 – p. 21).  
presence of  
correct and  
synchronised  
input voltage  
46 AC out Light indicator  
showing the  
This indicator is glowing continuously when an alternative  
voltage of 230V is present at the device output. It flashes  
when the device is in “load search” mode due to the  
absence of users. (See chapter 6.2.2 – p. 18)  
presence of a  
voltage at the  
output  
13 Type plate elements (fig. 3b)  
See also chapter 7.1 - p. 26.  
Pos. Denomination Description  
Comments  
31  
Model  
Model  
32 Pnom/P30  
33 U Battery  
Rated power output / power for 30 minutes  
Rated battery voltage (input area)  
See chapter 6.2.8 – p.  
28  
34 U ACin  
Rated AC input voltage (input area)  
Maximum current at input / output  
See chapter 6.2.2 – p.  
118  
See chapter 6.2.7 - p.  
35 I ACin/out  
21.  
36 U ACout  
37 I Charge  
Rated output voltage  
Maximum charger current  
Or according to {1286}  
See chapter 6.2.4 - p.  
19  
38 SN:xxxxxxxxxx Serial no.  
39 IPxx  
Protection degree according to IEC 60529  
Installation and Operating Instructions 723.932 Xtender V0.511  
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Xtender  
14 Table of standard configurations  
No. of  
Denomination / description  
Fact. Mod. G1 G2 G3  
config.  
valuevalue  
1
2
3
kVA kVA kVA  
3.5  
7
12  
1107 Maximum current of the AC source  
1108 Undervoltage of the empty battery  
1109 Sub-voltage of the charged battery  
A
30  
V/cell 1.9  
V/cell 1.75  
1110 Restart voltage of the inverter after undervoltage of the V/cell  
battery  
2
1111 Automatic startup at energisation  
1111 Automatic startup at energisation of the battery  
1112 Inverter frequency  
No  
No  
50  
Hz  
1121 Maximum DC voltage for stopping the Xtender  
1126 Source backup (smart boost) permitted  
1133 Number of restarts after stoppage  
1138 Battery charge current  
V/cell 2.84  
No  
2
A
80  
1139 Battery voltage correction according to the temperature  
mV/° -5  
C/cell  
1140 Battery maintenance voltage  
1156 Battery absorption voltage  
1157 Duration of absorption  
V/cell 2.27  
V/cell 2.4  
h
2
2
1159 Current at end of absorption  
Adc  
1187 Sensitivity of the charge detection  
3
1190 Duration of undervoltage of battery before disconnection  
1191 Dynamic compensation for undervoltage  
1198 Time elapsing before transfer relay opens  
1199 ACin voltage causing the opening of the transfer relay  
1200 Immediate open critical threshold for the transfer  
min.  
3
Yes  
0
180  
50  
5
sec.  
Vac  
Vac  
1300 Number of overloads permitted before definite stoppage  
--  
2
3
1303 Number of battery overvoltages accepted before definite --  
stoppage  
1304 Number of battery undervoltages permitted before definite --  
stoppage  
3
1309 Minimum ACin voltage to authorise charging  
1403 Period for counting battery overvoltages  
Vac  
185  
30  
sec.  
sec.  
Vac  
1404 Period for counting battery undervoltages  
30  
1432 Maximum ACin voltage to switch to inverter mode  
1436 Authorise exceeding of the input current limit without  
interrupting the transfer  
265  
No  
1470 ACin voltage hysteresis for closing the transfer relay  
1485 Automatic earth-neutral connection in inverter mode  
Vac  
20  
No  
1488 Serious undervoltage of the battery  
1505 Delta of higher frequency accepted  
V/cell 1.5  
Hz  
15  
1506 Delta of lower frequency accepted  
1286 Output voltage  
Hz  
5
Vac  
227  
Installation and Operating Instructions 723.932 Xtender V0.511  
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Xtender  
To modify the configurations, please refer to the operating instructions for the RCC-  
02/03 remote control  
Installation and Operating Instructions 723.932 Xtender V0.511  
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Xtender  
15 Technical data  
Model  
XTH 3000-12 XTH 5000-24 XTH 6000-48 XTH 8000-48  
Inverter  
Rated battery voltage  
Input voltage range  
Continuous power @ 25 °C  
Smart boost power  
30 minute charge @ 25 °C  
5 second charge @ 25 °C  
Maximum charge  
Maximum asymmetrical charge  
Load detection (standby)  
Admissible cos phi  
12 V  
24 V  
48 V  
48 V  
9.5 - 17 V  
2,500 VA  
2,500 VA  
3,000 VA  
19 - 34 V  
4,000 VA  
4,000 VA  
5,000 VA  
38 - 68 V  
5,000 VA  
5,000 VA  
6,000 VA  
39 - 68 V  
7,000 VA  
7,000 VA  
8,000 VA  
3 x Pnom  
Up to short-circuit  
Up to Pnom  
2 to 25 W  
0.1 – 1  
Maximum efficiency  
Open-circuit  
93%  
94%  
96%  
96%  
power 1.7 W/2.2 W/14 1.8 W/2.5 W/20 2.2 W/3 W/22 W 2.2 W/3.8 W/34  
OFF/standby/ON  
W
W
W
Output voltage  
230 Vac (-10% /0)  
Output frequency  
50/45-65 Hz +/- 0.05% (quartz-controlled)  
<2%  
0.5 ms (charge leap from 0 to 100%)  
Automatic disconnection then 2 startup attempts  
Harmonic distortion  
Dynamic correction  
Overcharge and short-circuit  
Overheating protection  
Battery charger  
Alarm prior to disconnection and automatic restart  
6-phase battery charger  
Adjustable charge current  
Input current sharing system  
Maximum input voltage  
AC input voltage range  
Admissible input frequency  
(PFC)  
Programmable I-U-Uo-equalisation-Uo(low)-U(periodic)  
0 - 160 A  
0 - 140 A  
1 - 30 A  
0 - 100 A  
0 - 120 A  
1 - 50 A  
265 Vac  
Level of detection adjustable from 150 to 230 Vac  
45 - 65 Hz  
EN 61000-3-2  
Battery control (factory value / adjustable range with RCC-02)  
End of absorption  
by duration 4 / 0.25 - 10 h or by current - / 4 - 30 A  
Absorption voltage  
14.4 / 9.5 - 18 V 28.8 / 19 - 36 V  
- / 9.5 - 18 V - / 19 - 36 V  
13.6 / 9.5 - 18 V 27.2 / 19 - 36 V  
57.6 / 38 - 72 V  
- / 38 - 72 V  
54.4 / 38 - 72 V  
-- / 38 - 72 V  
Periodic absorption voltage  
Maintenance voltage  
Reduced maintenance voltage  
Equalisation  
- / 9.5 - 18 V  
- / 19 - 36 V  
End of equalisation  
Equalisation voltage  
- / 9.5 - 18 V  
- / 19 - 36 V  
- / 38 - 72 V  
10.8 / 9.5 - 18 V 21.6 / 19 - 36 V 43.2 / 38 - 72 V  
- / 0 - 32 days  
- / 0 - 10 hours  
Temperature compensation  
General data  
-5 / 0 to-8 mV/°C/cell (optional BTC-01)  
Auxiliary contacts  
2 independent contacts 16 A - 250 Vac (potential-free 3 points)  
Maximum transfer relay current  
Maximum transfer time  
Weight  
30 A  
50 A  
<25 ms  
34 kg  
40 kg  
42 kg  
46 kg  
Dimensions: H x W x D [mm]  
Protection degree  
220x290x500  
IP23  
220x310x500  
Conformity  
EN 61000-6-1, EN 61000-6-3, EN 55014, EN 55022, EN 61000-3-2,  
Dir. 89/336/EEC, LVD 73/23/EEC  
Operating temperature range  
Ventilation  
-20 to 55 °C  
Forced from 45 °C  
Noise level  
Warranty  
<35 dB / <50 dB (without / with ventilation)  
2 years  
Options  
Battery temperature sensor :  
BTS-01  
Remote control and programming centre: RCC-02 / RCC-03  
Installation and Operating Instructions 723.932 Xtender V0.511  
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Xtender  
Installation and Operating Instructions 723.932 Xtender V0.511  
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Xtender  
Installation and Operating Instructions 723.932 Xtender V0.511  
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