Studer Innotec Xth 5000 24 User Manual

STUDER Innotec  
Xtender  
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  
STUDER Innotec  
Rue des Casernes 57  
CH – 1950 Sion  
Tel. +41 (0)27 205 60 80  
Fax. +41 (0)27 205 60 88  
Customer service:  
Sales department:  
Technical assistance:  
Website:  
Installation and operating Instructions  
Xtender V1.3  
Page 1  
STUDER Innotec  
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 efficiency and power factor correction (PFC) 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 STUDER  
Innotec’s many years of experience and expertise in this area. It could supply 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.  
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.  
These 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 these operating instructions, 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.  
Installation and operating Instructions  
Xtender V1.3  
Page 3  
STUDER Innotec  
Xtender  
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. 34.  
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.  
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 manufacture, assembly and tests for each Xtender are carried out in their  
entirety by our factory in Sion (CH). 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  
2.3.1 E  
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 Studer Innotec  
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  
Installation and operating Instructions  
Xtender V1.3  
Page 4  
STUDER Innotec  
Xtender  
XCLUSION OF LIABILITY  
2.3.2 E  
The placement, commissioning, use, maintenance and servicing of the Xtender cannot be the  
subject of monitoring by Studer Innotec. 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 a Studer Innotec 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.  
Studer Innotec 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 (p. 34) 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  
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 Studer Innotec 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. 1b, 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  
2.4.2 P  
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.  
Installation and operating Instructions  
Xtender V1.3  
Page 5  
STUDER Innotec  
Xtender  
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.  
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:  
Protected from any unauthorised person.  
Protected 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.  
Installation and operating Instructions  
Xtender V1.3  
Page 6  
STUDER Innotec  
Xtender  
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.  
3.6 Connections  
ENERAL RECOMMENDATIONS  
3.6.1 G  
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  
3.6.2 D  
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.  
Installation and operating Instructions  
Xtender V1.3  
Page 7  
STUDER Innotec  
Xtender  
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.  
Pos. Denomination Description  
Comment  
1
ON/OFF  
Main switch  
Main on/off switch  
See chapter The real time clock 7.1 - p  
24.  
2
Temp. Sens Connector for the battery  
temperature sensor  
See chapter 6.4.2 – p. 24.  
Only connect the original Studer BTS-01  
sensor  
3
Com. Bus  
Double connector for  
See chapter 4.5.9 – p. 14.  
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
5
6
7
O / T  
(Open /  
Terminated)  
--  
3.3 V (CR-2032) lithium ion type Used as a permanent supply for the  
battery socket  
internal clock. See chapter The real time  
clock 6.2.11 - p 21.  
--  
Jumper for programming the  
off/on switch by dry contact  
See chapter 6.2.12 – p. 21 and fig. 8b  
point (6) and (7). They are positioned at A-  
1/2 and B-2/3 by default  
REMOTE  
ON/OFF  
Connection terminals for dry  
on/off remote connection.  
See chapter 6.2.12– p. 21).  
When the control via dry contact is not  
being used, a bridge must be present  
between the two terminals.  
8
9
AUXILIARY  
CONTACT  
Auxiliary contact  
(See chapter 6.2.10– p. 21)  
Take care not to exceed the admissible  
loads  
--  
Activation indicators for auxiliary See chapter 6.2.10– p. 21  
contacts 1 and 2  
10 L1/L2/L3  
11 +BAT  
Phase selection jumpers.  
See chapter 6.3.1. – p.22.  
Jumper default at position L1  
Positive pole battery connection Carefully read chapter 4.5 – p.12  
terminals Take care with the polarity of the battery  
Installation and operating Instructions  
Xtender V1.3  
Page 8  
STUDER Innotec  
Xtender  
12 -BAT  
Negative pole battery  
connection terminals  
and when tightening the clamp.  
See chapter 4.5.7 - p. 14.  
Note: It is imperative that the PE terminal  
be connected.  
13 AC Input  
Connection terminals for the  
alternative power supply  
(generator or public network)  
Connection terminals for the  
device output.  
14 AC Output  
See chapter 4.5.6 - p. 14.  
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.  
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. 27 and following.  
YBRID TYPE STAND ALONE SYSTEMS  
4.1.1 H  
-
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 Xtender power) the  
factory settings (adapted to grid-connection) must be modified according to the  
“generator” column in the configuration table on p. 34.  
RID CONNECTED EMERGENCY SYSTEMS  
4.1.2 G  
-
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  
4.1.3 I  
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  
Installation and operating Instructions  
Xtender V1.3  
Page 9  
STUDER Innotec  
Xtender  
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  
4.1.4 M  
-
Whatever system is selected, it is 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.  
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  
4.2.1 M  
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  
4.2.2 F  
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.  
Installation and operating Instructions  
Xtender V1.3  
Page 10  
STUDER Innotec  
Xtender  
This connection (C) is not permitted if a socket is installed upstream of the Xtender.  
NSTALLATION WITH AUTOMATIC  
4.2.3 I  
NEUTRAL SWITCHING  
PE-  
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.  
4.3 Recommendations for dimensioning the system  
IMENSIONING THE BATTERY  
4.3.1 D  
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 8048 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 on 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  
4.3.2 D  
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  
4.3.3 D  
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 those 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.  
Installation and operating Instructions  
Xtender V1.3  
Page 11  
STUDER Innotec  
Xtender  
IMENSIONING THE ALTERNATIVE ENERGY SOURCES  
4.3.4 D  
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.  
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.  
INIMUM BATTERY CABLE CROSS SECTION  
4.5.1  
M
-
XTH3000-12  
XTH5000-24  
XTH6000-48  
XTH8000-48  
90 mm2  
90 mm2  
70 mm2  
90 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.  
ONNECTING THE BATTERY TENDER SIDE  
4.5.2 C  
(X  
)
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.  
Fix the battery cables to the appropriate connections „+ Battery “and „- Battery “. The M8 screws  
must be very well tightened.  
INPUT PROTECTION  
4.5.3 DC  
In order to avoid any further loss and protection  
redundancy, the Xtender does not have an  
internal fuse. A protection device (f) must be  
installed as close as possible to the battery and  
sized as per the table opposite:  
Unit  
Fuse on the battery side  
XTH-3000-12  
XTH-5000-24  
XTH-6000-48  
XTH-8000-48  
400 A  
350 A  
250 A  
300 A  
Installation and operating Instructions  
Xtender V1.3  
Page 12  
STUDER Innotec  
Xtender  
BATTERY SIDE CONNECTION  
4.5.4  
-
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 negative cable on to the negative pole (-) of the battery and the positive 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 level are shown in fig. 3a and specified in the configuration table p.34. 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. Studer Innotec 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. 34 of this manual. The default values proposed by Studer Innotec 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.  
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.  
ARTHING THE BATTERY  
4.5.5 E  
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.  
Installation and operating Instructions  
Xtender V1.3  
Page 13  
STUDER Innotec  
Xtender  
ONNECTING THE CONSUMERS AT THE  
4.5.6 C  
OUTPUT  
230 V AC  
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. 6.2.6 – p. 19)  
If the assistance 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), or 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.  
ONNECTING THE  
4.5.7 C  
SUPPLY SOURCES  
AC  
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  
4.5.8 W  
These contacts are reversing contacts that are potential-free. The admissible currents and voltages  
for these contacts are 16 A: 250 VAC/24VDC or 3 A: 50 VDC 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 6.2.10 – p.21.  
ONNECTING THE COMMUNICATIONS CABLES  
4.5.9 C  
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 Studer  
Innotec. In this network all parties in the network are connected in series (chain).  
Installation and operating Instructions  
Xtender V1.3  
Page 14  
STUDER Innotec  
Xtender  
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 Studer  
Innotec. 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 of terminal of 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  
4.5.10  
(BTS-01)  
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 stuck onto the battery or  
directly next to it. The temperature sensor will be recognised automatically and the correction made  
immediately.  
5 Powering up 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 on the battery cable 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.  
Putting the Xtender(s) in operation  
using the main ON/OFF switch (1). The Xtender is  
supplied and is ready for operation. If you require immediate start-up of the inverter when the  
battery is powered up, the main switch (1) must be in the “ON” position and the  
configuration {1111} activated.  
3.  
4.  
Connecting the consumers at the output  
: Activate the output protection device (F) if existing,  
and/or press the ON/OFF button (41). The light indicator “AC out” (46) lights up or flashes (in  
the event of an absence of consumers).  
Activating the input circuit breaker(s) (H)  
If an AC source (generator or electrical grid) valid in  
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 RCC-  
02/03 remote control. Please refer to the operating instructions for this accessory.  
Installation and operating Instructions  
Xtender V1.3  
Page 15  
STUDER Innotec  
Xtender  
6 Description and functioning  
The Xtender is a sine wave inverter with a battery charger. It has been developed for use as a stand-  
alone installation to supply AC voltage (not connected to the grid) or as a continuous supply.  
6.1 Circuit diagram  
17  
K1  
L
L
100nF  
2,2nF  
2,2nF  
2,2nF  
2,2nF  
K3  
K4  
K2  
N
N
4x2,7M  
16  
14  
13  
11  
BATTERY  
f
10nF  
10nF  
9
AC  
DC  
b
t
12  
f
10  
Multimode Power Center  
XTH-5000-24  
DSP  
6
RJ45  
8p  
O
T 4  
RJ11  
6p  
Remote  
On/Off  
8p  
7
a
Bus termination  
Temp.  
2
CAN bus  
3
max 300m  
e
RCC-02  
6.2 Description of the main functions  
NVERTER  
6.2.1 I  
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 electrical 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  
6.2.2 A  
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.  
The detection threshold for the absence of loads can be adjusted according to the configuration  
Installation and operating Instructions  
Xtender V1.3  
Page 16  
STUDER Innotec  
Xtender  
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.  
When the load search sensitivity {1187} is set to 0 in a paralleled multi-units system, the  
master/slave behaviour is inhibited and all the inverter will be always functional whatever the  
load is.  
In standby mode the system will thus consume minimal power from the battery (see table of  
technical data p. 36).  
RANSFER RELAY  
6.2.3 T  
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 after a delay {1528}. This delay may be  
adjusted(extended) to allow a fully stabile status of the generator before transfer.  
When the transfer relay is activated, the voltage present at the input of the Xtender is available at the  
output for the consumers connected. At the same time the battery charger goes into operation.  
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.  
The maximum current of the transfer relay is 50 A. This means that the permanent power of the  
consumers must be a maximum of 11,500 W at 230 V (18000 W for the XTH 8000-48 if smart  
boost {1126} is activated). (see chap. 6.2.6 p. 19). If the battery charger is in operation, part of this  
power will be used for the battery charge.  
The sharing of energy between consumers and the battery charger is adjusted automatically (see  
chap. 6.2.5 – p. 19). 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. 6.2.6 – p. 19). This switching always takes place automatically. 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. To this case, a delay in the opening  
of the transfer relay can be adjusted with the parameter {1198}.  
The transfer normally takes place without any interruption when the generator stops. It would  
typically be 40 ms in the event of the immediate loss of input voltage at “AC IN”.  
6.2.3.1 Fast voltage loss detection mode (fast transfer):  
When the Xtender is connected to the public grid or to a generator supplying stable and clean AC  
voltage, a fast voltage loss detection mode {1435} can be used. In this mode, perturbation or lack of  
voltage of less than 1 millisecond can be detected, switching the unit in inverter mode immediately.  
The sensitivity of this detection is adjustable with the parameter {1510}. This mode guarantee a zero  
or maximum of 15 ms transfer time  
This mode should not be used in presence of highly disturbed utility grid or with a low power  
generator or a generator supplying a poor quality voltage  
ATTERY CHARGER  
6.2.4 B  
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.  
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.  
Installation and operating Instructions  
Xtender V1.3  
Page 17  
STUDER Innotec  
Xtender  
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.  
a
e
d
Cycle de charge simplifié, sans limitation de  
courant d'entrée  
Once the absorption voltage {1156) is reached, the cycle passes to voltage 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.  
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.  
Given the limiting function for the input current (see the following p. 19), 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 and "smart boost”  
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. 34.  
Installation and operating Instructions  
Xtender V1.3  
Page 18  
STUDER Innotec  
Xtender  
Much more complex charge profiles or exclusion of the charger can be configured using  
the RCC-03/03 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. 34  
IMITING THE INPUT CURRENT BY LIMITING THE CHARGER CURRENT  
6.2.5 L  
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  
{1107}, the transfer relay will remain closed and the input source is likely to be overloaded bringing  
the protection device (H) to open. Exceeding the limit can be forbidden by the configuration of the  
parameter {1436}. If so, if the input current limit {1107} is reached, the transfer relay will be open and  
the consumer will remain supplied exclusively by the inverter (battery) as long as the output current  
exceeds the limit of the input current.  
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  
6.2.6 T  
(“  
)
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.  
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  
Installation and operating Instructions  
Xtender V1.3  
Page 19  
STUDER Innotec  
Xtender  
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.  
If the Xtender 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.  
NPUT CURRENT CONTROLLED BY INPUT VOLTAGE  
6.2.7 I  
When AC sources with variable power are connected to the Xtender's ACin, a particular parameter  
setting insure a permanent availability of the nominal power at the Xtender's output thanks to the  
Smartboost function. It's notably the case with "Dynawatt" 230Vac alternator coupled with variable  
speed traction engines. These kinds of sources have a variable voltage according to the available  
power. For this type of application, it's necessary to activate the parameter {1527}. So, the input  
current limit {1107} will be regulated between zero to the programmed value, for an input voltage  
whitch varies between {1309} and {1309}+{1433}  
ATTERY PROTECTION  
6.2.8 B  
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 dynamically corrected {1191} with an advanced algorithm tha  
computes automatically the battery voltage compensation in function of the instantaneous power.  
This correction may also be manually fixed {1532} by setting the low voltage disconnection at full  
load {1109}. These dynamic corrections can be desactivated by stting the parameter {1191} . 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}.  
This restarting threshold {1110} can be automatically readjusted if the parametewr {1194} is  
activated, in order to better protect the battery against repeated cycling in an "almost empty " state  
of charge. The restarting threshold is then incremented {1298} up to a maximum value {1195},  
whenever the LVD (low voltage disconnection) is reached. The restarting threshold will be reset to its  
initial value when the value of parameter {1307} is reached.  
If the inverter is repeatedly {1304} encountering a low voltage disconnection in a short period {1404},  
it will stop permanently and will only start again via an operator’s manual restart.  
TENDER PROTECTION  
6.2.9 X  
The Xtender is protected electronically against overloads, short-circuit, overheating and reverse  
current (cabling of a voltage source on AC out).  
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.  
Installation and operating Instructions  
Xtender V1.3  
Page 20  
STUDER Innotec  
Xtender  
A battery voltage greater than 1.66 x the nominal voltage may lead to significant damage or  
destroy the device.  
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 from reverse polarity by means of an external fuse installed on the battery.  
UXILIARY CONTACTS  
6.2.10 A  
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: max. 50Vdc/ 3A  
These dry contacts are programmed by default for the following functions:  
Contact no. 1 (AUX 1): The contact has a function of automatic star of generator (two wire). Contact  
will be activated when the battery voltage is, during a given time {1247/48}/{1250/51}/{1253/54},  
less than the value given by parameter {1246/49/52}. The contact will be deactivated or when the  
charge cycle as reached absobtion, or when the "Aux. 1 deactivation voltage" {1255} is reached  
during a pre-determinated time {1256}  
The voltage of the battery is automatically compensated according to the instantaneous  
battery current the same way as it is done for compensation of LVD (see chapter 6.2.8 –  
p.20) if parameter {1191} is activated  
Contact no. 2 (AUX2) : alarm contact by default. It is deactivated 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.  
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  
6.2.11 T  
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.  
EMOTE CONTROL ON OFF  
6.2.12 R  
/
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 (6) 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.  
Installation and operating Instructions  
Xtender V1.3  
Page 21  
STUDER Innotec  
Xtender  
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.  
When multi-unit system is commissioned, the software's version of every units will be  
automatically checked and units may refuse to start in case of incompatibility. If so, an  
upgrade of every units is be required with the RCC-02/03 and the last software version  
available by the manufacturer. (Read the RCC-02 user's manual to perform this operation).  
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 metres. 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 of Appendix I.  
It is important to read and adhere to the descriptions associated with each of the figures  
mentioned above  
In multi-unit system,it is not recommended to employ the manual setting {1532} of the LVD  
dynamic correction.  
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  
6.3.1 T  
-
Three Xtenders of the same type can be used and combined in order to establish a three-phase grid.  
An example of cabling in three-phase 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  
will switch to inverter mode. If only a single-phase source is available, it must 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  
6.3.2 I  
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. 27.  
When the load search sensitivity {1187} is set to 0 in a paralleled multi-units system, the  
master/slave behaviour is inhibited and all the inverter will be always functional whatever the  
load is.  
OMBINED SYSTEM  
6.3.3 C  
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. Examples of cabling are given in figs. 16 to 18 and the comments on p. 27.  
Installation and operating Instructions  
Xtender V1.3  
Page 22  
STUDER Innotec  
Xtender  
6.4 Accessories  
ONTROL CENTRE AND  
6.4.1 C  
REMOTE CONTROL DISPLAY  
RCC-02/03 (  
)
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  
RCC-02  
RCC-03  
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  
board device.  
The RCC-03 model must be taken off the table to allow access to the SD card slot (during updating,  
for example).  
Model N°: RCC-02: Dimensions: H x W x D / / 170 x 168 x 43.5mm  
RCC-03: Dimensions: H x W x D / / 130 x 120 x 42.2mm  
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.  
Installation and operating Instructions  
Xtender V1.3  
Page 23  
STUDER Innotec  
Xtender  
TEMPERATURE SENSOR  
6.4.2 BTS-01  
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  
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.  
Multimode Power Centre  
Inverter + Charger + Autom. transfer + Input current manager  
XTH-5000-24  
Blinking indicator  
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.  
(41) The ON/OFF button allows the startup or  
complete 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. 6.2.12 – p. 21) or the ON/OFF  
button of the RCC-02/03 remote control.  
Load search  
Input limited  
46  
45  
44  
43  
42  
Float  
Absorption  
Auto restart  
Overload  
Overtemp.  
Bat. over volt.  
41  
Even when the equipment has stopped,  
dangerous voltages may be present at the  
Xtender input.  
(42) This indicator lights up when the equipment has 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 6.2.9 – p. 20.  
Installation and operating Instructions  
Xtender V1.3  
Page 24  
STUDER Innotec  
Xtender  
2x Stoppage due to overload in In this event the equipment will make several attempts restart  
the equipment, due to either {1133} every few seconds and will stop if the overload remains  
a short-circuit or too high a (see chap. 6.2.9 – p. 20). It is vital to eliminate the cause of the  
load for the inverter.  
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 high  
of the device due to a too 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.  
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 threshold  
configuration {1121}.  
value {1122}.  
see chap. 6.2.9 – p. 20  
5x No transfer. Insufficient power In this case, the Xtender remains in operation in inverter mode  
from the source  
until the output power decrease below the input limit 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 manual  
device output.  
control on the button (41).  
7x Indicates missing voltage on Check the input protection devices (H) for all the system units.  
one of the units of the 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. 22).  
The equipment will restart automatically when the conditions that led to the temporary  
stoppage have gone away.  
(44) This indicator is glowing continuously when the charger is working and has not yet reached 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. 6.2.5 p. 19). 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.19) is used and the inverter is part of the user supply  
– therefore the battery is discharged – the “charge” indicator (44) will be glowing.  
(46) This indicator is glowing continuously when an alternative voltage of 230V is present at the  
equipment output. It flashes when the device is in “load search” mode according to chapter 6.2.2 –  
p. 16.  
Installation and operating Instructions  
Xtender V1.3  
Page 25  
STUDER Innotec  
Xtender  
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.  
9 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.  
10 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)  
Installation and operating Instructions  
Xtender V1.3  
Page 26  
STUDER Innotec  
Xtender  
11 Comments of annexes’ figures  
Fig. Description and comment  
Dimensioning table for the downstream protection device (F). See chap. 4.5.6 – p.14.  
Type plate and series no.  
1a  
1b  
See chapter 16 - p. 32.  
The intactness of this label is vital for any possible warranty claims. It must not be altered  
or removed.  
Dimensions and fastening the device  
The support (wall) must be appropriate for supporting the increased weight of the device  
without any risk.  
2a  
2b  
3a  
Installation distance  
Insufficient distance or an increased ambient temperature can reduce the rated power  
output of the device.  
Battery charge cycle  
Charge cycles that are more complex than those described in chap. 6.2.4 – p. 17 of this  
manual may be programmed via the RCC-02/03 remote control.  
Simplified battery charge cycle:  
See chapter 6.2.4 - p. 17.  
Device connection box  
3b  
4a  
See chapter 3.6.2 – p. 7.  
4b  
5a  
5b  
5c  
5d  
6a  
6b  
6c  
6d  
7
Control table See chapter 7.2-p. 24.  
12 V battery: connection in series and in parallel / series for 2 V cell  
12 V battery: connection of 12 V battery in parallel  
24 V battery: connection in series and in parallel / series for 2 V cell  
24 V battery: connection in series and in parallel / series for 12 V battery block  
48 V battery: connection in series and in parallel / series for 12 V battery block  
48 V battery: connection in series for 12 V battery block  
48V battery: Series connection of 2V cell  
48 V battery: connection in parallel / series for 2 V cell  
Xtender circuit diagram  
8a  
Single-phase installation (AC and DC part)  
This example illustrates the most routinely used installation, allowing the 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 AC source is absent. See also chapter  
4.1.1.1 / 4.1.2 – p. 9.  
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. 6.2.12 – p. 21.  
The maximum length for this control should not exceed 5 m.  
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 or grid are  
operating.  
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 4.2.1  
– p. 10.  
Fixed single-phase installation with connection by plug to a three-phase source – AC  
part  
8c  
9a  
9b  
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 4.2.1  
– p. 10.  
Installation and operating Instructions  
Xtender V1.3  
Page 27  
STUDER Innotec  
Xtender  
Fig. Description and comment  
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 4.2.1 – p. 10.  
10b  
10c  
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.  
Installation example in a boat, with isolation transformer  
Characteristic: With several power sources, like shore connection and onboard generator,  
a switchover (X) must be installed, to safely switch between the different voltage supplies  
with guaranteed interruption of the phase and neutral conductors. Moreover, an earth  
must be formed (E) after the isolation transformer.  
11  
12  
Example of a hybrid installation:  
This is the most common system used to establish 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.  
Example of parallel connection of 2 or 3 Xtenders  
1. Only Xtenders of the same power output may be connected in parallel.  
2. Wiring precautions: The cable lengths and cross-sections of AC in input (A) and AC  
out output (B) must be the same for all inverters in parallel in the same phase.  
3. 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  
4. The AC input for each Xtender must be protected individually by a protection device  
(H) of the appropriate size.  
5. 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.  
6. If necessary, the ON/OFF remote control (r) 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  
14  
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. 22.  
The comments for fig. 12 - 4 to 6 are valid.  
Example of three-phase cabling of 3 Xtenders – single-phase input  
Special feature: In a three-phase configuration, if only one phase is available as a source,  
only one Xtender will be wired on that source. Phase 2 and 3 will be permanently fed from  
the two other units connected only to the battery (not connected to ACin).  
It is vital to determine and select the phase for each Xtender.  
See also chapter 6.3.1– p. 22.  
The comments for fig. 12 are valid.  
15  
Example of three-phase, input and output wired, 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 13 are valid.  
Installation and operating Instructions  
Xtender V1.3  
Page 28  
STUDER Innotec  
Xtender  
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  
18  
19  
Example of cabling of 9 Xtenders in three-phase and parallel – DC part (distribution  
bar)  
Example of cabling of 9 Xtenders in three-phase and parallel – DC part in star  
formation  
Connection of remote controls RCC-02/03  
At a Xtender or at a system with several Xtender maximally 3 remote controls can be  
attached.  
12 Figure element's (DC part)  
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 6.4.1 – p.  
23.  
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 trouble free  
operation of the system. See chapter 4.3.1 – p. 11.  
Communications cable. Only an original cable supplied by Studer  
Innotec 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.  
e
f
Communications  
cable  
Protection devices 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.  
h
j
k
Distribution bar  
Distribution bar  
Wind-powered  
Positive pole of the battery  
Negative pole of the battery  
One or more wind-powered generators or/and micro-hydro with their  
or/and  
micro- own regulation system may be used to directly charge the battery. Its  
hxdro generator  
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.  
r
t
Remote  
via dry contact  
control A control device may be connected to the terminals (7) of the  
Xtender. See chapter 6.2.12 – p. 21.  
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. See chap. 6.4.2 p.24  
BTS-01  
temperature  
sensor  
Installation and operating Instructions  
Xtender V1.3  
Page 29  
STUDER Innotec  
Xtender  
13 Figure element's (AC part)  
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  
cable  
supply 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 or  
breaker  
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, downstream  
connection bridge 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 A protection device dimensioned in dependence of the cable section  
protection devices used may be installed downstream of the Xtender (main circuit  
for the Xtender  
Generator  
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 Fig. 1b (35).  
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”.  
G
H
Protection devices The protection device at the input of the Xtender must be  
at the Xtender dimensioned according to the power output of the source at the  
input  
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 Fig. 1b (35).  
J
K
Connection plug / If the Xtender is connected to an AC source by means of a plug, the  
socket  
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  
Xtender V1.3  
Page 30  
STUDER Innotec  
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- This connection is deactivated by default. In may be used in certain  
neutral connection 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. See 4.2.3– p.11  
W
X
Galvanic isolator  
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.  
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.  
14 Elements of connexion cabinet (Fig 4a)  
Pos. Denomination Description  
Comment  
See chapter 7.1 - p 24.  
1
ON/OFF  
Main on/off switch  
Main switch  
2
Temp. Sens Connector for the battery See chapter 6.4.2 – p. 24.  
temperature sensor Only connect the original Studer BTS-01  
sensor  
3
4
Com. Bus  
Double  
connector  
for See chapter 4.5.9 – p. 14.  
connecting peripherals such as The two termination switches (4) for the  
the RCC002/03 or other communication bus both remain in  
Xtender units  
position T (terminated) except when both  
connectors are in use.  
O / T  
Switch for terminating the  
/ communication bus.  
(Open  
Terminated)  
--  
5
6
3.3 V (CR-2032) lithium ion type Used as a permanent supply for the  
battery socket internal clock. See chapter 6.2.11 - p 21.  
Jumper for programming the See chapter 6.2.12 – p. 21 and fig. 8b  
--  
off/on switch by dry contact  
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 See chapter 6.2.12– p. 21).  
on/off remote connection.  
Auxiliary contact  
When the control via dry contact is not  
being used, a bridge must be present  
between the two terminals.  
(See chapter 6.2.10– p. 21)  
Take care not to exceed the admissible  
loads  
8
9
AUXILIARY  
CONTACT  
--  
Activation indicators for auxiliary See chapter 6.2.10– p. 21  
contacts 1 and 2  
Installation and operating Instructions  
Xtender V1.3  
Page 31  
STUDER Innotec  
Xtender  
Pos. Denomination Description  
Comment  
See chapter 6.3.1. – p.22.  
10 L1/L2/L3  
Phase selection jumpers.  
Jumper default at position L1  
11 +BAT  
Positive pole battery connection Carefully read chapter 4.5 – p.12  
terminals  
Negative  
Take care with the polarity of the battery  
and when tightening the clamp.  
battery  
12 -BAT  
pole  
connection terminals  
Connection terminals for the See chapter 4.5.7 - p. 14.  
alternative power supply Note: It is imperative that the PE terminal  
(generator or public network) be connected.  
Connection terminals for the See chapter 4.5.6 - p. 14.  
device output. Note: Increased voltages may appear on  
13 AC Input  
14 AC Output  
the terminals, even in the absence of  
voltage at the input of the inverter.  
15 Control and display parts for the Xtender (fig. 4b)  
See chapter 7.2 - p. 24.  
Pos. Denomin Description  
ation  
Comments  
ON/OFF  
41  
ON/OFF button  
The ON/OFF button allows the start up 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 When the light indicator flashes it indicates the cause of the  
for stoppage of stoppage of the unit, its imminent stoppage or the limitation of  
the unit  
Light  
its rated power output according to chapter 7.2 - p.24.  
indicator This indicator is glowing continuously when the device is  
showing that the working. It flashes when the equipment is at a temporary  
equipment is in stop. Note: The equipment will restart automatically when the  
operation  
conditions that led to the temporary stoppage have gone  
away.  
44 Charge Light  
indicator This indicator is glowing continuously when the charger is in  
showing that the operation and has not yet reached the absorption phase.  
battery is being It flashes twice during the absorption phase and once during  
charged  
the maintenance phase.  
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 6.2.6 - p. 19)  
45 AC in  
Light  
showing  
indicator This indicator is glowing continuously when an alternative  
the voltage with correct values is present at the AC IN input (13)  
presence  
correct  
synchronised  
input voltage  
of of the device and the current limit {1107) set by the user has  
and not been reached. It flashes when this limit is reached (see  
chapter 6.2.5 – p. 19).  
46 AC out  
Light  
showing  
indicator This indicator is glowing continuously when an alternative  
the voltage of 230V is present at the device output. It flashes  
presence of a when the device is in “load search” mode due to the absence  
voltage at the of users. (See chapter 6.2.3 – p. 16)  
output  
16 Type plate elements (fig. 1b)  
Pos. Denomination Description  
Comments  
31 Model  
Model  
32 Pnom/P30  
Rated power output / power for 30 minutes  
Installation and operating Instructions  
Xtender V1.3  
Page 32  
STUDER Innotec  
Xtender  
Pos. Denomination Description  
Comments  
33 U Battery  
Rated battery voltage (input area)  
See chapter 6.2.8– p.  
20  
34 U ACin  
Rated AC input voltage (input area)  
Maximum current at input / output  
See chapter 6.2.3 – p.  
17  
See chapter 6.2.6 - p.  
35 I ACin/out  
19.  
36 U ACout  
37 I Charge  
Rated output voltage  
Maximum charger current  
Or according to {1286}  
See chapter 6.2.4 - p.  
17  
38 SN:xxxxxxxxxx Serial no.  
39 IPxx  
Protection degree according to IEC 60529  
Installation and operating Instructions  
Xtender V1.3  
Page 33  
STUDER Innotec  
Xtender  
17 Table of standard configurations  
No. of  
Units  
Fact. Mod.  
Denomination / description  
config.  
value  
value  
1107 Maximum current of the AC source  
1108 Undervoltage of the empty battery  
1109 Sub-voltage of the charged battery  
1110 Restart voltage of the inverter after undervoltage of the battery  
1111 Automatic startup at power up  
A
30  
V/cell  
V/cell  
V/cell  
y/n  
1.93  
1.75  
2
no  
1112 Inverter frequency  
Hz  
50  
1121 Maximum DC voltage for stopping the Xtender  
1126 Source assistance (Smart Boost) permitted  
1138 Battery charge current  
V/cell  
y/n  
A
2.84  
no  
60  
1139 Battery voltage correction according to the temperature  
mV/°C/ -5  
cell  
1140 Battery maintenance voltage  
V/cell  
V/cell  
min.  
V/cell  
sec.  
V/cell  
h
2.27  
2.1  
30  
1.93  
180  
2.4  
2
1143 Voltage 1 to allow a new battery cycle  
1144 Duration of under voltage 1 to allow a new cycle  
1145 Voltage 2 to allow a new battery cycle  
1146 Duration of under voltage 2 to allow a new cycle  
1156 Battery absorption voltage  
1157 Duration of absorption  
1159 Current at end of absorption  
Adc  
h
%
sec.  
min.  
y/n  
10  
3
10  
0.8  
3
yes  
non  
2.08  
8
180  
50  
1161 Minimum interval between absorptions  
1187 Sensitivity of the charge detection (100% approx.25W)  
1189 Time interval between load search pulses  
1190 Duration of undervoltage of battery before disconnection  
1191 Dynamic compensation for undervoltage  
1194 Battery adaptive low voltage allowed  
1195 Max voltage for adaptive low voltage  
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  
1246 Auxiliary contact 1 activated by voltage 1 {1247} after delays  
{1248}  
o/n  
V/cell  
sec.  
Vac  
Vac  
y/n  
yes  
1247 Voltage 1under which auxiliary contact 1 is activated  
1248 Delays on voltage 1 to activate auxiliary contact 1  
1249 Auxiliary contact 1 activated by voltage 2 {1250} after delays  
{1251}  
V/cell  
min.  
y/n  
1.95  
1
yes  
1250 Voltage 2 under which auxiliary contact 1 is activated  
1251 Delays on voltage 2 to activate auxiliary contact 1  
1252 Auxiliary contact 1 activated by voltage 3 {1253} after delays  
{1254}  
V/cell  
min.  
y/n  
2
10  
yes  
1253 Voltage 3 under which auxiliary contact 1 is activated  
1254 Delays on voltage 3 to activate auxiliary contact 1  
V/cell  
min.  
2.05  
60  
1255 Voltage 1above which auxiliary contact 1 is deactivated after delays V/cell  
2.25  
60  
yes  
120  
1
yes  
80  
5
1256 Delays on voltage {1255} to deactivate auxiliary contact 1  
1258 Auxiliary contact 1 activated by power 1  
1259 Power 1 above which auxiliary contact 1 is activated after delays  
1260 Duration of power 1 for activating auxiliary contact 1  
1261 Auxiliary contact 1 activated by power 2  
1262 Power 2 above which auxiliary contact 1 is activated after delays  
1263 Duration of power 2 for activating auxiliary contact 1  
1264 Auxiliary contact 1 activated by power 3  
min.  
y/n  
%
min.  
y/n  
%
min.  
y/n  
Vac  
no  
230  
1286 Output voltage  
Installation and operating Instructions  
Xtender V1.3  
Page 34  
STUDER Innotec  
Xtender  
No. of  
config.  
Units  
Fact. Mod.  
Denomination / description  
value  
value  
1298 Increment step of the adaptive low voltage method  
1300 Number of overloads permitted before definite stoppage  
mV/cell 20  
--  
3
1303 Number of battery overvoltages accepted before definite stoppage --  
3
3
2.2  
185  
60  
0
270  
20  
1304 Number of battery undervoltages permitted before final stop  
1307 Reset voltage for adaptive correction  
--  
V/cell  
Vac  
sec.  
sec.  
Vac  
V
1309 Minimum ACin voltage to authorise charging  
1403 Period for counting battery overvoltages  
1404 Period for counting battery undervoltages  
1432 Maximum ACin voltage to switch to inverter mode  
1433 Adaptation range of the charge current according to the input  
voltage  
1436 Allow to exceed AC input current without opening the transfer relay y/n  
yes  
10  
no  
1.5  
15  
5
1470 ACin voltage hysteresis for closing the transfer relay  
1485 Automatic earth-neutral connection in inverter mode  
1488 Critical under voltage of the battery  
Vac  
y/n  
V/cell  
Hz  
1505 Delta of higher frequency accepted  
1506 Delta of lower frequency accepted  
Hz  
1516 Auxiliary contact 1 deactivated by floating mode  
1517 Auxiliary contact 2 deactivated by floating mode  
1527 Decrease max input limit current with AC-In voltage  
1528 Delay before closing transfer relay  
y/n  
y/n  
o/n  
Min.  
yes  
no  
n
0
1532 Kind of dynamic compensation  
Auto/Man Auto  
To modify the configurations, please refer to the operating instructions for the RCC-02/03  
remote control  
Installation and operating Instructions  
Xtender V1.3  
Page 35  
STUDER Innotec  
Xtender  
18 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 load @ 25 °C  
5 second load @ 25 °C  
Maximum load  
Maximum asymmetrical load  
Load detection (standby)  
Admissible cos phi  
12 V  
24 V  
48 V  
48 V  
9.5 - 17 V  
2500 VA  
3000VA  
3000 VA  
19 - 34 V  
4500 VA  
5000 VA  
5000 VA  
38 - 68 V  
5000 VA  
6000 VA  
6000 VA  
39 - 68 V  
7,000 VA  
8000 VA  
8000 VA  
3 x Pcont  
Up to short-circuit  
Up to Pnom  
2 to 25 W  
0.1 – 1  
Maximum efficiency  
93%  
94%  
96%  
96%  
Open-circuit power OFF/standby/ON 1.3W/2.2W/14W 1.8W/2.5W/18W 2.2W/3W/22W 2.2W/3.8W/26 W  
Output voltage  
Output frequency  
Harmonic distortion  
Overcharge and short-circuit  
Overheating protection  
Battery charger  
Sine wave 230 Vac (+/-2%) / 180-245 Vac  
50 Hz adjustable 45-65 Hz +/- 0.05% (quartz-controlled)  
<2%  
Automatic disconnection then 2 startup attempts  
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 - 140 A  
0 - 100 A  
0 - 120 A  
0 - 160 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  
Absorption voltage  
Periodic absorption voltage  
Floating voltage  
Reduced maintenance voltage  
Equalisation  
End of equalisation  
Equalisation voltage  
Low voltage disconnection  
Reduced floating duration  
Periodical absorption  
Temperature compensation  
General data  
by duration: 2h / 0.25 - 18 h or by current <10A / 2 - 50 A  
14.4V / 9.5-18 V 28.8V / 19-36 V  
- / 9.5 - 18 V - / 19 - 36 V  
13.6V / 9.5-18 V 27.2V / 19-36 V  
- / 9.5 - 18 V - / 19 - 36 V  
57.6V / 38 - 72 V  
- / 38 - 72 V  
54.4V / 38 - 72 V  
-- / 38 - 72 V  
By number of cycles ( - / - 100) or at fixed intervals ( - / 52 weeks)  
By duration 2h / 0.25 – 10h or by current - / 5 – 50 A  
- / 9.5 - 18 V  
10.8V / 9.5-18 V 21.6V /19-36 V  
- / 0 - 32 days  
- / 0 - 10 hours  
- / 19-36 V  
- / 38 - 72 V  
43.2V / 38 - 72 V  
-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  
Dimensions: H x W x D [mm]  
Protection degree  
50 A  
0-15 ms  
40 kg  
230x300x500  
IP20  
34 kg  
42 kg  
46 kg  
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  
<40 dB / <50 dB (without / with ventilation)  
2 years  
Options  
Battery temperature sensor:  
BTS-01  
Remote control and programming centre for wall mounting: RCC-02  
Remote control and programming centre for panel mounting: RCC-03  
Installation and operating Instructions  
Xtender V1.3  
Page 36  

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