PHOTOVOLTAIK - PHOTOVOLTAIC - PHOTOVOLTAIQUE - FOTOVOLTAICA
Installation and Operating Instructions
Unit combining inverter, battery charger and transfer system.
Xtender
XTH 3000-12
XTH 5000-24
XTH 6000-48
XTH 8000-48
BTS-01 temperature sensor
EN
723.932 | V 0.511
Steca
Xtender
TABLE OF CONTENTS
INTRODUCTION................................................................................................................ 3
Conventions.................................................................................................................. 4
Storage.......................................................................................................................... 6
CABLING........................................................................................................................... 9
Recommendations for dimensioning the system........................................................ 12
Circuit diagram........................................................................................................... 18
Display and control parts............................................................................................ 26
Product recycling........................................................................................................ 28
10 FIGURE COMMENT TABLES......................................................................................... 29
11 FIGURE ELEMENT TABLES .......................................................................................... 31
13 TYPE PLATE ELEMENTS (FIG. 3B)............................................................................... 34
14 TABLE OF STANDARD CONFIGURATIONS................................................................. 35
15 TECHNICAL DATA.......................................................................................................... 37
Installation and Operating Instructions 723.932 Xtender V0.511
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Steca
Xtender
1 Introduction
Congratulations! You are about to install and use a device from the Xtender range. You have
chosen a high-tech device that will play a central role in energy saving for your electrical
installation. The Xtender has been designed to work as an inverter / charger with advanced
functions, which can be used in a completely modular way and guarantee the faultless
functioning of your energy system.
When the Xtender is connected to a generator or network, the latter directly supplies the
consumers, and the Xtender works like a battery charger and backup device if necessary. The
powerful battery charger has an exceptional high output and form factor correction close to 1. It
guarantees excellent battery charging in all situations. The charge profile is freely configurable
according to the type of battery used or the method of usage. The charge voltage is corrected
depending on the temperature, thanks to the optional external sensor. The power of the charger
is modulated in real time dependent according to the demand of the equipment connected at the
Xtender output and the power of the energy source (network or generator). It can even
temporarily backup the source if the consumer demand exceeds the source capacity.
The Xtender continuously monitors the source to which it is connected (network or generator) and
disconnects itself immediately if the source is missing, disturbed or does not correspond to the
quality criteria (voltage, frequency, etc.). It will then function in independent mode, thanks to the
integrated inverter. This inverter, which has an extremely robust design, benefits from Steca’s
many years of experience and expertise in this area. It is capable of supplying any type of load
without faults, enjoying reserves of additional power that is unmatched on the market. All your
equipment will be perfectly provided with energy and protected from power outages in systems
where energy supply is unpredictable (unreliable network) or voluntarily limited or interrupted,
such as hybrid installations on remote sites or mobile installations.
The parallel and/or three-phase network operation of the Xtender offers modularity and flexibility
and enables optimum adaptation of your system to your energy requirements.
The RCC-02/03 control, display and programming centre (optional) enables optimum
configuration of the system and guarantees the operator continuous control for all important
configurations in the installation.
In order to guarantee perfect commissioning and functioning of your installation, please read this
manual carefully. It contains all the necessary information relating to the functioning of the
inverters / chargers in the Xtender series. The setting up of such a system requires special
expertise and may only be carried out by qualified personnel familiar with the applicable local
regulations.
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Steca
Xtender
2 General information
2.1 Operating instructions
This manual is an integral part of each inverter/charger from the Xtender series.
It covers the following models and accessories:
Xtender: XTH 3000-12 – XTH 5000-24 – XTH 6000-48 – XTH 8000-48
Temperature sensor: BTS-01
For greater clarity, the device is referred to in this manual as Xtender, unit or device, when the
description of its functioning applies indiscriminately to different Xtender models.
Thes operating instructions serve as a guideline for the safe and efficient usage of the Xtender.
Anyone who installs or uses an Xtender can rely completely on this operating instructionsl, and is
bound to observe all the safety instructions and indications contained. The installation and
commissioning of the Xtender must be entrusted to a qualified professional. The installation and
usage must conform to the local safety instructions and applicable standards in the country
concerned.
2.2 Conventions
This symbol is used to indicate the presence of a dangerous voltage that is sufficient to
constitute a risk of electric shock.
This symbol is used to indicate a risk of material damage.
This symbol is used to indicate information that is important or which serves to optimise
your system.
All values mentioned hereafter, followed by a configuration no. indicate that this value may be
modified with the help of the RCC-02/03 remote control.
In general, the default values are not mentioned and are replaced by a configuration no. in the
following format: {xxxx}. The default values for this configuration are specified in the configuration
table, p.35.
All configuration values modified by the operator or installer must be transferred into the same
table. If a parameter not appearing in the list (advanced configurations) has been modified by an
authorised person with technical knowledge, they will indicate the number of the modified
parameter(s), the specifications of the configuration(s) and the new value set, at the end of the
same table.
All figures and letters indicated in brackets refer to items of figures in the separate manual
“Appendix to the installation and operating instructions” supplied with the device.
The figures in brackets refer to elements belonging to the Xtender.
The uppercase letters in brackets refer to AC cabling elements.
The lowercase letters in brackets refer to battery cabling elements.
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Xtender
2.3 Quality and warranty
During the production and assembly of the Xtender, each unit undergoes several checks and
tests. These are carried out with strict adherence to the established procedures. Each Xtender
has a serial number allowing complete follow-up on the checks, according to the particular data
for each device. For this reason it is very important never to remove the type plate (appendix I –
fig. 3b) which shows the serial number. The warranty for this equipment depends upon the strict
application of the instructions appearing in this manual.
The warranty period for the Xtender is 2 years.
XCLUSION OF WARRANTY
E
2.3.1
No warranty claims will be accepted for damage resulting from handling, usage or processing that
does not explicitly appear in this manual. Cases of damage arising from the following causes are
notably excluded from the warranty:
•
Surge voltage on the battery input (for example, 48 V on the battery input of an XTH
3000-12)
•
•
•
•
•
Incorrect polarity of the battery
The accidental ingress of liquids into the device or oxidation resulting from condensation
Damage resulting from falls or mechanical shocks
Modifications carried out without the explicit authorisation of Steca
Nuts or screws that have not been tightened sufficiently during the installation or
maintenance
•
•
•
Damage due to atmospheric surge voltage (lightning)
Damage due to inappropriate transportation or packaging
Disappearance of original marking elements
XCLUSION OF LIABILITY
E
2.3.2
The placement, commissioning, use, maintenance and servicing of the Xtender cannot be the
subject of monitoring by Steca. For this reasons we assume no responsibility and liability for
damage, costs or losses resulting from an installation that does not conform to the instructions,
defective functioning or deficient maintenance. The use of an inverter is the responsibility of the
customer in all cases.
This equipment is neither designed nor guaranteed to supply installations used for vital medical
care nor any other critical installation carrying significant potential damage risks to people or the
environment.
We assume no responsibility for the infringement of patent rights or other rights of third parties
that result from using the inverter.
Steca reserves the right to make any modifications to the product without prior notification.
2.4 Warnings and notes
GENERAL
2.4.1
This manual is an integral part of the device and must be kept available for the operator
and installer. It must remain close to the installation so that it may be consulted at any
time.
The configuration table available at the end of the manual must be kept up to date in the event of
modification of the configurations by the operator or installer. The person in charge of installation
and commissioning must be wholly familiar with the precautionary measures and the local
applicable regulations.
When the Xtender is running, it generates voltage that can be potentially lethal. Work on
or close to the installation must only be carried out by thoroughly trained and qualified
personnel. Do not attempt to carry out ongoing maintenance of this product yourself.
The Xtender or the generator connected to it, may start up automatically under certain
predetermined conditions.
When working on the electrical installation, it is important to be certain that the source of
Installation and Operating Instructions 723.932 Xtender V0.511
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Steca
Xtender
DC voltage coming from the battery as well as the source of AC voltage coming from a
generator or network have been disconnected from the electrical installation.
Even when the Xtender has been disconnected from the supply sources (AC and DC), a
dangerous voltage may remain at the outputs. To eliminate this risk you must switch the
Xtender OFF using the ON/OFF button (1). After 10 seconds the electronics is
discharged and intervention may take place without any danger.
All elements connected to the Xtender must comply with the applicable laws and regulations.
Persons not holding written authorisation from Steca are not permitted to proceed with any
change, modification or repairs that may be required. Only original parts may be used for
authorised modifications or replacements.
This manual contains important safety information. Read the safety and working instructions
carefully before using the Xtender. Adhere to all the warnings given on the device as well as in
the manual, by following all the instructions with regard to operation and use.
The Xtender is only designed for interior use and must under no circumstances be subjected to
rain, snow or other humid or dusty conditions.
The maximum specifications of the device shown on the type plate, as at fig. 3b, must be
adhered to.
In the event of use in motorised vehicles, the Xtender must be protected from dust, splash water
and any other humid condition. It must also be protected from vibration by installing absorbent
parts.
RECAUTIONS FOR USING THE BATTERIES
P
2.4.2
Lead-acid or gel batteries produce a highly explosive gas with normal use. No source of sparks or
fire should be present in the immediate vicinity of the batteries. The batteries must be kept in a
well-ventilated place and be installed in such a way as to avoid accidental short-circuits when
connecting.
Never try to charge frozen batteries.
When working with the batteries, a second person must be present in order to lend assistance in
the event of problems.
Sufficient fresh water and soap must be kept to hand to allow adequate and immediate washing
of the skin or eyes affected by accidental contact with the acid.
In the event of accidental contact of the eyes with acid, they must be washed carefully with cold
water for 15 minutes. Then immediately consult a doctor.
Battery acid can be neutralised with baking soda. A sufficient quantity of baking soda must be
available for this purpose.
Particular care is required when working close to the batteries with metal tools. Tools such as
screwdrivers, open-ended spanners, etc. may cause short-circuits. Consequently occurring
sparks may cause the battery to explode.
When working with the batteries, all metal jewellery such as rings, bracelet watches, earrings,
etc., must be taken off. The current output by the batteries during a short-circuit is sufficiently
powerful to melt the metal and cause severe burns.
In all cases, the instructions of the battery manufacturer must be followed carefully.
3 Assembly and installation
3.1 Handling and moving
The weight of the Xtender is between 35 and 50kg depending upon the model. Use an
appropriate lifting method as well as help from a third party when installing the equipment.
3.2 Storage
The equipment must be stored in a dry environment at an ambient temperature of between
-20°C and 60°C. It stay in the location where it is to be used a minimum of 24 hours before being
set up.
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Xtender
3.3 Unpacking
When unpacking, check that the equipment has not been damaged during transportation and that
all accessories listed below are present. Any fault must be indicated immediately to the product
distributor or the contact given at the back of this manual.
Check the packaging and the Xtender carefully.
Standard accessories:
Installation and operating instructions, c.f. Appendix 1
Mounting plate – fig. 2a (18)
2 conduit glands for the battery cable
3.4 Installation site
The installation site for the Xtender is of particular importance and must satisfy the following
criteria:
Protection from any unauthorised person.
Protection from water and dust and in a place with no condensation.
It must not be situated directly above the battery or in a cabinet with it.
No easily inflammable material should be placed directly underneath or close to the Xtender.
Ventilation apertures must always remain clear and be at least 15cm from any obstacle that may
affect the ventilation of the equipment according to fig. 2b.
In mobile applications it is important to select an installation site that ensures as low a vibration
level as possible.
3.5 Fastening
The Xtender is a heavy unit and must be mounted to a wall designed to bear such a
load. A simple wooden panel is insufficient.
The Xtender must be installed vertically with sufficient space around it to guarantee adequate
ventilation of the device (see figs. 2a and 2b).
If the Xtender is installed in a closed cabinet this must have sufficient ventilation to guarantee an
ambient temperature that conforms to the operation of the Xtender.
Firstly, fit the mounting bracket (18) supplied with the device, using 2 Ø <6-8 mm> screws**.
Then hang the Xtender on the bracket. Fasten the unit permanently using 2 Ø <6-8 mm>
screws** on to the two notches located at the underside of the case.
**: These items are not delivered with the device.
It is imperative to ensure complete and safe fastening of the device. A device that is
simply hung may detach and cause severe damage.
In motor vehicles or when the support may be subject to strong vibrations, the Xtender must be
mounted on anti-vibration supports.
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Xtender
3.6 Connections
ENERAL RECOMMENDATIONS
G
3.6.1
The Xtender falls within protection class I (has a PE connection terminal). It is vital that a
protective earth is connected to the AC IN and/or AC OUT PE terminals. An additional protective
earth is located between the two fastening screws at the bottom of the unit (fig. 2b-(17)).
In all cases, the PE conductor for the equipment must at least be connected to the PE
for all equipment in protection class I upstream and downstream of the Xtender
(equipotential bonding). It is imperative that the legislation in force for the application
concerned be adhered to.
Tighten of the input (13) and output (14) terminals by means of a no. 3 screwdriver and those for
the “REMOTE ON/OFF” (7) and “AUX.CONTAC” (8) by means of a no. 1 screwdriver.
The cable sections of these terminals must conform to local regulations.
All connection cables as well as the battery cables must be mounted using cable restraints in
order to avoid any traction on the connection.
Battery cables must also be as short as possible and the section must conform with the
applicable regulations and standards. Sufficiently tighten the clamps on the “battery” inputs (fig.
4a (11) and (12)).
EVICE CONNECTION COMPARTMENT
D
3.6.2
The unit’s connection compartment must remain permanently closed when in operation.
It is imperative to close the protection cap on the connection terminals after each
intervention in the device.
After opening, check that all sources of AC and DC voltage (batteries) have been
disconnected or put out of service.
Fig. 4a
12
11
14
13
8
1
2
7
1 2 3
A
B
5
10
6
L
L
AUX1
AUX2
AC Input
AC O
utput
Warning!
9
Check battery polarity (+/-) before connecting
A wrong connexion may damage the systen
!
2
4
3
1
OFF
ON
Open
Terminated
Main
switch
Temp.
Sens.
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Xtender
Pos. Denominati Description
on
Comment
1
2
3
ON/OFF
Main switch
Main on/off switch
7.1 – p 26.
See chapter 6.2.11 – p. 23.
Only connect the original Steca BTS-01
sensor
Temp. Sens Connector for the battery
temperature sensor
Com. Bus
Double connector for
See chapter 4.5.8 – p. 16.
connecting peripherals such as The two termination switches (4) for the
the RCC002/03 or other
Xtender units
Switch for terminating the
communication bus.
communication bus both remain in
position T (terminated) except when both
connectors are in use.
4
O / T
(Open /
Terminated)
--
5
6
3.3 V (CR-2032) lithium ion
type battery socket
Jumper for programming the
off/on switch by dry contact
Used as a permanent supply for the
internal clock. See chapter 6.2.10 – p 23.
See chapter 6.2.11 – p. 23 and fig. 8b
point (6) and (7). They are positioned at
A-1/2 and B-2/3 by default
--
7
REMOTE
ON/OFF
Connection terminals for dry
on/off remote connection.
See chapter 6.2.11 – p. 23).
When the control via dry contact is not
being used, a bridge must be present
between the two terminals.
8
9
AUXILIARY Auxiliary contact
CONTACT
See chapter 6.2.9 – p. 23
Take care not to exceed the admissible
loads
--
Activation indicators for
See chapter 6.2.9 – p. 23
auxiliary contacts 1 and 2
10 L1/L2/L3
11 +BAT
Phase selection jumpers.
See chapter 6.3.1. – p. 24.
Jumper default at position L1
Carefully read chapter 4.5 – p. 12
Take care with the polarity of the battery
and when tightening the clamp.
Positive pole battery
connection terminals
Negative pole battery
connection terminals
12 -BAT
13 AC Input
Connection terminals for the
alternative power supply
(generator or public network)
Connection terminals for the
device output.
Note: It is imperative that the PE terminal
be connected.
14 AC Output
See chapter 4.5.5 - p. 16.
Note: Increased voltages may appear on
the terminals, even in the absence of
voltage at the input of the inverter.
4 Cabling
The connection of the Xtender inverter / charger is an important installation step.
It may only be carried out by qualified personnel and in accordance with the applicable local
regulations and standards. The installation must always comply with these standards.
Pay attention that connections are completely tightened and that each wire is connected at the
right place.
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Xtender
4.1 Choice of system
The Xtender may be used in different system types, each of which must meet the standards and
particular requirements associated with the application or site of installation. Only an
appropriately qualified installer can advise you effectively on the applicable standards with regard
to the various systems and the country concerned.
Examples of cabling are presented in appendix I of this manual, fig. 5 and following. Please
carefully read the notes associated with these examples in the tables on p. 29 and following.
YBRID TYPE STAND ALONE SYSTEMS
H
-
4.1.1
The Xtender can be used as a primary supply system for grid-remote sites where a renewable
energy source (solar or hydraulic) is generally available and a generator is used as backup. In
this case, batteries are generally recharged by a supply source such as solar modules, wind
power or small hydropower systems. These supply sources must have their own voltage and/or
current regulation system and are connected directly to the battery. (Example, fig. 11)
When the energy supply is insufficient, a generator is used as a back-up energy source. This
allows the batteries to be recharged and direct supply to consumers via the Xtender transfer relay.
When the input voltage source is a low power generator (lower than the power) the
factory settings (adapted to grid-connection) must be modified according to the
“generator” column in the configuration table on p. 35.
RID CONNECTED EMERGENCY SYSTEMS
G
-
4.1.2
The Xtender can be used as an emergency system, also known as an uninterruptible power
supply (UPS) – enabling a reliable supply to a site connected to an unreliable network. In the
event of an interruption to the energy supply from the public network, the Xtender, connected to a
battery, substitutes the faulty source and enables a support supply to the users connected
downstream. These will be supplied as long as the energy stored in the battery allows. The
battery will quickly be recharged at the next reconnection to the public grid.
Various application examples are described in figs. 8a – 8c in appendix I.
The use of the Xtender as a UPS must be carried out by qualified personnel who have
been checked by the responsible local authorities. The diagrams in the appendix are
given for information and as a supplement. The applicable local standards and
regulations must be adhered to.
NTEGRATED MOBILE SYSTEMS
I
4.1.3
These systems are meant to be temporarily connected to the grid and ensure the supply of the
mobile system when this is disconnected from the grid. The main applications are for boats,
service vehicles and leisure vehicles. In these cases, two separate AC inputs are often required,
one connected to the grid and the other connected to an on-board generator. Switching between
two sources must be carried out using an automatic or manual reversing switch, conforming to
the applicable local regulations. The Xtender has a single AC input.
Various application examples are described in figs. 10a – 10b – 10c).
ULTI UNIT SYSTEMS
M
-
4.1.4
Whatever system is selected, it is perfectly possible to realise systems composed of several units
of the same type and the same power output. Up to three Xtenders in parallel or three extenders
forming a three-phase grid or three times two with three Xtenders in parallel forming a three-
phase / parallel grid, may be thus combined.
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Xtender
4.2 Earthing system
The Xtender is a protection class I unit, which is intended for cabling in a grid type TT, TN-S or
TNC-S. The earthing of the neutral conductor (E) is carried out at a sole installation point,
upstream of the RCD circuit breaker (D).
The Xtender can be operated with any earthing system. In all cases it is imperative that the
protective earth be connected in compliance with the applicable standards and regulations. The
information, notes, recommendations and diagram mentioned in this manual are subject to local
installation regulations in every case. The installer is responsible for the conformity of the
installation with the applicable local standards.
OBILE INSTALLATION OR INSTALLATION CONNECTED TO THE GRID VIA PLUG CONNECTOR
M
4.2.1
When the input of the device is connected directly to the grid via a plug, the length of the cable
must not exceed 2 m and the plug must remain accessible.
In the absence of voltage at the input, the neutral and live are interrupted, thereby guaranteeing
complete isolation and protection of the cabling upstream of the Xtender.
The earthing system downstream of the Xtender is determined by the upstream earthing system
when the grid is present. In the absence of the grid, the earthing system downstream of the
inverter is in isolated mode. The safety of the installation is guaranteed by the equipotential
bonding.
The connection (link) between the neutrals (C) upstream and downstream of the
Xtender is not permitted in this configuration.
This connection type guarantees the optimal continuity for supplying the Xtender loads. The first
isolation fault will not lead to an interruption in the supply.
If the installation requires the use of a permanent isolation controller this would have to be de-
activated when the TT network is present at the Xtender input.
All sockets and protection class I devices connected downstream of the Xtender must
be properly connected to the earth (earthed socket). The cabling rules above remain
valid, including fixed installations, in all cases where the Xtender input is connected to
the grid via a plug connector.
IXED INSTALLATION
F
4.2.2
The installation may be equivalent to a mobile installation (with interrupted neutral).
In a fixed installation where the neutral is connected to the earth at a single installation point
upstream of the Xtender, it is permissible to carry out a connection of the neutrals in order to
preserve an unchanged earthing system downstream, independent of the operating mode of the
Xtender. This choice has the advantage of keeping the protection devices downstream of the
Xtender. This connection can be executed according to the examples in appendix 1, or carried
out by modifying the configuration {1486}
In this case the appearance of the first fault will lead to the installation stopping or the
disconnection of the protection devices upstream and/or downstream of the Xtender.
Safety is guaranteed by the equipotential bonding and by any RCD circuit-breakers placed
downstream.
This connection (C) is not permitted if a socket is installed upstream of the Xtender.
NSTALLATION WITH AUTOMATIC
NEUTRAL SWITCHING
PE-
I
4.2.3
In certain applications, it is desirable to keep the neutral upstream and downstream of the
Xtender separated (C) while reestablishing the earthing system (TN-S, TT or TNC-S) in the
absence of voltage at the input. This can be programmed by the configuration {1485} via the
RCC-02/03 remote control. This modification must be carried out possessing technical knowledge,
at the responsibility of the installer and in conformity with the applicable regulations and
standards.
This allows adherence to the requirements for an earth-neutral connection at the source.
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Xtender
4.3 Recommendations for dimensioning the system
IMENSIONING THE BATTERY
D
4.3.1
The battery capacity is dimensioned according to the requirements of the user – that is 5 to 10
times its average daily consumption. The discharge depth of the battery will therefore be limited
and the service life of the battery will be extended.
On the other hand, the Xtender must have a battery capacity that is large enough to be able to
take full advantage of the performance of the equipment. The minimum capacity of the batteries
(expressed in Ah) is generally dimensioned in the following way: five times the rated power
output of the Xtender / the battery voltage. For example, the model XTH 8000-48 must have a
battery of a minimum capacity of 7000*5/48=730 Ah (C 10). Because of the inverter’s extreme
overload capacity, it is often recommended that this value be rounded up. An under-dimensioned
battery may lead to an accidental and undesired stopping of the Xtender in the event of high
instances of use. This stoppage will be due to a voltage that is insufficient for the battery, subject
to a strong discharge current.
The battery will be selected with regard to the greatest value resulting from the calculations set
out above.
The battery capacity determines the adjustment of the configuration {1137} “battery charge
current”. A value between 0.1 and 0.2 x C batt. [Ah] (C10) enables an optimum charge to be
guaranteed.
The method proposed below is strictly indicative and in no way constitutes a guarantee
of perfect dimensioning. The installer is solely responsible for good dimensioning and
installation
IMENSIONING THE INVERTER
D
4.3.2
The inverter is dimensioned in such a way that the rated power output covers the power of all the
consumers which will be used at the same time. A dimensioning margin of 20 to 30% is
recommended to guarantee that the Xtender will work well in an ambient temperature of more
than 25 °C.
IMENSIONING THE GENERATOR
D
4.3.3
The power output of the generator must be the same or more than the average daily power.
Optimally, it should be two or three times this power. Thanks to the smart boost function it is not
necessary to over-dimension the generator. Indeed, the loads that are temporarily higher than the
power of the generator will be supplied by the inverter. Ideally it should not have a power output
by phase that is less than half of the power of the Xtender(s) present at this phase.
The power available downstream of the inverter when the generator is working is the
same as the sum of the two powers.
IMENSIONING THE ALTERNATIVE ENERGY SOURCES
D
4.3.4
In a hybrid system, the alternative energy sources such as the solar generator, wind power and
small hydropower should, in principle, be dimensioned in such a way as to be able to cover the
average daily consumption.
4.4 Wiring diagrams
The diagrams shown in the appendix of this document are subsidiary. The applicable local
installation regulations and standards must be adhered to.
The elements referred to with an uppercase letter denote the alternate current (AC) part.
The elements referred to with a lowercase letter denote the direct current (DC) part.
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Xtender
4.5 Connecting the battery
Lead batteries are usually available in 2 V, 6 V or 12 V block types. In the majority of cases, in
order to obtain an operating voltage that is correct for Xtender usage, several batteries must be
connected in series or in parallel depending on the circumstances.
. In multi-unit systems, all Xtenders from the same system must be connected according
to the same battery bank.
The various cabling options are presented in figures 5a-5b (12 V), 5c-5e (24 V) and 6a to 6d (48
V) in appendix I of this manual.
ONNECTING THE BATTERY TENDER SIDE
C
(X
)
4.5.1
Insert the conduit glands supplied on the battery
cable before tightening the cable clamp. Crimp the
cable clamps and fasten the conduit gland on the
device. Repeat this for the second battery cable.
Connect the red cable (+) to the “+ battery” terminal,
and the black cable (-) to the "- battery” terminal of
the device, adhering to the order of the elements
shown in figure 1b on the side.
20
21
22
23
24
26
25
Unit
Fuse
XTH-2500-12
XTH-5000-24
XTH-6000-48
XTH-8000-48
None
300 A
200 A
300 A
NTERNAL FUSE FOR THE TENDER
I
X
4.5.2
The internal fuse provides additional protection on certain models and does not preclude the
requirement for cable protection closest to the battery. (see chapter following).
The battery clamp fitted on the fuse (24) must have a
match the centering lip of the ceramic isolation disc (23).
in order to
diameter of M10
The internal fuse of the equipment (26) is always installed on the positive terminal (+). It
will be fitted on the negative terminal in the event of connection of the + to the earth.
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Xtender
BATTERY SIDE CONNECTION
-
4.5.3
Before connecting the battery, carefully check the voltage and polarity of the battery
using a voltmeter.
Incorrect polarity or surge voltage may seriously damage the device.
Prepare the batteries for connection: appropriate battery clamps, protection device (f), cable in
good conditions with correctly fitted clamps.
Fasten the black cable on to the negative pole (-) of the battery and the red cable on the open
protection device (f).
The battery cables must be protected by one of the following measures in all cases:
- protection device (fuse) at each pole
- protection device (fuse) on the pole connected to the earth
- mechanical envelope making an accidental short-circuit impossible.
When connecting the battery, a spark may occur when connecting the second pole. This
spark is due to the load of the internal filtering capacity of the Xtender.
When connecting the battery it is necessary to check that the configuration values of the Xtender
conform to the recommendations of the battery manufacturer. Non-conforming values may be
dangerous and/or seriously damage the batteries. The default values of the battery’s charge
threshold limits are shown in fig. 3a and specified in the configuration tables. If they prove not to
conform, it is necessary to modify them via the RCC 02/03 remote control before connecting the
voltage sources on the AC input. Steca is not responsible for default values not corresponding
with the recommendations of the manufacturer.
If the factory settings are modified, the new values must be entered on the configuration table on
p. 35 of this manual. The default values proposed by Steca are the usual values for gel batteries
(VRLA or AGM).
The calibre of the protection device (f) must be adapted to the cable section and also mounted as
close as possible to the battery.
ATTERY CABLE SECTION
B
(minimum recommended):
XTH3000-12
XTH5000-24
XTH6000-48
XTH8000-48
90 mm2
90 mm2
50 mm2
70 mm2
The cable sections recommended above are valid for lengths less than 3 m. Beyond this length it
is strongly recommended to over-section the battery cables.
The battery cables must also be as short as possible.
It is always preferable to keep the cable at the negative pole of the battery as short as possible.
The clamps must be carefully fixed and tightened sufficiently to guarantee minimum
loss. Insufficient tightening may cause dangerous heating at the connection point.
For safety reasons, we recommend an annual check on the tightness of all connections.
For mobile installation the connections should be checked more frequently for tightness.
The cabling and connection of the installation should only be carried out by an appropriately
qualified professional. The installation material such as cables, connectors, distribution boxes,
fuses, etc. must be adapted and must conform to the applicable laws and regulations the
application under consideration.
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Steca
Xtender
ARTHING THE BATTERY
E
4.5.4
One of the two battery conductors can be earthed. This may be either the positive or negative
pole. In all cases the installation must conform to the local regulations and usage or specific
standards associated with the application.
In case of earthing, the earthing conductor section must at least be equivalent to the section of
the battery conductor. The earthing of the equipment must also adhere to these regulations. In
this case the use of the additional earthing screw is recommended (fig. 2b (17)), which is located
at the front of the device between the two lower fastening screws.
ONNECTING THE CONSUMERS AT THE
C
OUTPUT
230 V AC
4.5.5
High voltages may be present on the connection terminals (13) and (14). Make sure that
the inverter is deactivated and that there is no AC or DC voltage present on the AC IN
terminals and battery terminals, before proceeding with the connection.
The 230 V consumers must be connected on the “AC OUT” (14) connection terminals with the
wire section conforming to the standards with regard to the rated current at the Xtender output
(see fig. 1a). Distribution must conform to the local standards and regulations, and generally, be
realised via a distribution table.
The Xtender terminals are marked in the following way:
N = neutral, L = live
= protective earth (connected to the case of the device).
Due to the source backup function (smart boost) the current at the output of the device
may be higher than the rated current of the inverter. It is the sum of the current supplied
by the additional source and the current supplied by the inverter. In this case, the
dimensioning of the output cables will be carried out by adding the current indicated on
the protection device (H) located on the upstream of the unit, to the nominal current of
If the backup function at the source (smart boost) is not used, the calibre of the protection device
for the output (F) will be established at a maximum value equal to the rated current of the inverter,
or at the maximum value of the protection device at the input (H) if this is exceeds the rated
current of the inverter.
An additional earthing terminal (15) is present between the two fastening screws at the
bottom of the unit. It can be used instead of a connection on the input terminals of the
device, particularly when cable sections are used at the output that do not allow use of a
three-wire cable (live earth and neutral) through the conduit glands of the connection
cables of the input and output (AC IN and AC OUT), where when the earthing of one of
the points of the battery requires a cable section greater than the the PE conductor
section of the AC IN and/or AC OUT line.
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Xtender
ONNECTING THE
C
SUPPLY SOURCES
AC
4.5.6
The Xtender is intended to be supplied by alternative voltage sources such as the public grid or a
generator. Check that the rated voltage of the source corresponds to the rated voltage (34) of the
Xtender specified on the type plate (fig. 3b).
The source must be connected to the input terminals marked “AC INPUT” (13) with sufficient wire
section, depending on the power output of the source, and protected by a protection device of the
appropriate calibre. This will be at the maximum equal to the current I AC in max (35) specified
on the type plate (fig. 3b).
The terminals are marked in the following way: N = neutral, L = live, PE = protective earth
(connected to the case of the device).
IRING AUXILIARY CONTACTS
W
4.5.7
These contacts are reversing contacts that are potential-free. The admissible currents and
voltages for these contacts are 16 A / 250 V AC or 3 A/50 V DC max. The representation of the
contact near the terminals corresponds to the status of the contact in idle mode (light indicator (5)
off). The cabling of these auxiliary contracts depends solely on the application and cannot be
described in this manual.
ONNECTING THE COMMUNICATIONS CABLES
C
4.5.8
The Xtender is equipped with a pair of RJ45/8 connectors that allow information transfer via a
communication bus for different consumer types which have the proprietary protocol of Steca. In
this network all parties in the network are connected in series (chain).
The length of the communication bus cable must not exceed 300 m.
In a system comprising a single Xtender, the connection of the RCC-02 or RCC-03 may be
conducted without stopping the Xtender (warm).
The communication bus will be used to interconnect other Xtender inverters in the case of a
multi-unit application or to connect other types of users who have the proprietary protocol of
Steca. In these cases, the installation must be switched off using the main “ON/OFF” button (1) to
connect the units via the communication bus.
The 2 switches for terminating the communication bus, “Com. Bus" (4) both remain in
position T (terminated) except when both connectors are in use. In this case, and only in
this case, both must be placed in the O open position. If one of the two connectors is not
in use, the two termination switches (14) will be in position T.
CONNECTING THE TEMPERATURE SENSOR
(BTS-01)
4.5.9
The temperature sensor, BTS-01 is supplied with a 3 m cable fitted with RJ11/6-type plugs. It
may be connected or disconnected at any time (including when the device is in use) using the
corresponding socket (2) marked “temp. sens.” on the Xtender. Plug the connectors into the
socket (2) until they click in. The temperature sensor sleeve may simply be glued onto the battery
or directly next to it. The temperature sensor will be recognised automatically and the correction
made immediately.
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Steca
Xtender
5 Energisation of the installation
It is imperative that the closing cap for the connection compartment be installed and
screwed tight before the installation is energised. There are dangerous voltages within
the interior of the connection compartment.
The connection of the Xtender must be carried out in the order given below. Any disassembly
must be carried out in the reverse order.
1. Connecting the battery
Too high or inappropriate a battery voltage may seriously damage the Xtender. For
example, installing a 24 V battery in the Xtender 3000-12.
If the Xtender has been connected the wrong way around by accident (incorrect polarity
of the battery) it is highly likely that the protection fuse inside the equipment may melt
and will have to be replaced. If such is the case, it will be necessary to disconnect all the
connections to the Xtender including the battery. If, after replacing the fuse, the Xtender
proves not to work correctly after reconnecting the battery with the correct polarity, it will
have to be returned to your distributor for repair.
2.
using the main ON/OFF switch (1). The Xtender is
Putting the Xtender(s) in operation
supplied and is ready for operation. If you require immediate start-up of the inverter when
the battery is energised, the main switch (1) must be in the “ON” position and the
configuration {1111} activated.
: Activate the output protection device (F) if
Connecting the consumers at the output
existing, and/or press the ON/OFF button (41). The light indicator “AC out” (46) lights up
3.
4.
or flashes (in the event of an absence of consumers).
If an AC source (generator or network) valid in
Activating the input circuit breaker(s)
frequency and voltage is present at the AC input, the device automatically goes into
transfer and will start to charge the batteries. The consumers at the output are therefore
supplied directly by the power source present at the input.
Your installation is now in operation. If particular configuration or adjustment is required by the
system, it is recommended to carry this out immediately. Adjustments must be made with the
help of the RCC-02/03 remote control. Please refer to the operating instructions for this
accessory.
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Xtender
6 Description and functioning
The Xtender is a sine wave inverter with a battery charger. It has been developed for use as a
standalone installation to supply AC voltage (not connected to the grid) or as a continuous supply.
6.1 Circuit diagram
17
K1
100nF
2,2nF
2,2nF
2,2nF
2,2nF
K3
K4
K2
14
13
f
10nF
10nF
9
AC
DC
t
12
f
10
6
1x
AC out
AC in
Charge
ON
1x
1x
2x
1x
RJ45
8p
1x Battery low
2x
3x
4x
O
T 4
RJ11
6p
Temp.
Remote
On/Off
8p
7
a
Swiss Made
Bus termination
2
CAN bus
3
e
6.2 Description of the main functions
NVERTER
I
6.2.1
The Xtender is equipped with a high-performance inverter which supplies a perfect and very
precise sine wave. Any unit designed for the 230 V/50 Hz public grid may connect to it without
any problem, up to the rated power out of your Xtender. The inverter is protected against
overloads and short-circuits.
Thanks to the largely over-dimensioned performance level, loads of up to three times greater
than the Xtender’s rated output can be faultlessly supplied for short periods of use, thus allowing
motors to be started up without any problem.
When the Xtender is operating the LED “ON” (43) is glowing.
When the Xtender is in inverter mode, the LED “AC out” (46) is glowing. If it flashes, the inverter
is in “load search” mode (see following chapter “Automatic load detection”).
UTOMATIC LOAD DETECTION
A
6.2.2
In order to save battery energy, the Xtender inverter stops and automatically goes into load
search when the detected load is lower than the sensitivity set by the configuration {1187}. It
automatically goes back into operation when a power consumer greater than this value demands
it. The indicator (46) flashes if the inverter is in “load search” mode, which also indicates that the
AC voltage is present at the output in an intermittent form.
In standby mode the system will thus consume minimal power from the battery (see table of
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Steca
Xtender
technical data p. 37). The detection threshold for the absence of loads can be adjusted according
to the configuration range {1187} by means of the RCC-02/03 remote control. When the
configuration is set to 0 the inverter will still operate even in the absence of any consumer.
RANSFER RELAY
T
6.2.3
The Xtender can be connected to an alternative power source such as a generator or public
network. When the voltage at the entry satisfies the voltage {1199+470} and frequency {1505-
1506} parameters, the transfer relay will be activated, except where the input current limit{1107}
is lower than the instantaneous current supplied by the Xtender inverter. If the limit has not been
exceeded then the voltage present at the input of the Xtender is therefore available at the output
for the consumers connected. At the same time the battery charger goes into operation. The
sharing of energy between consumers and the battery charger is adjusted automatically (see
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
A delay before the opening of the transfer relay can be adjusted {1198}.
This switching always takes place automatically. The switching always takes place without delay
by default (UPS mode) and the equipment will pass into inverter mode once the voltage and
frequency criteria at the input are no longer being fulfilled. The presence of increased dynamic
loads (such as pneumatic angle grinders, etc.) may lead to an undesirable opening of the transfer
relay due to the weakness of the source. In this case a delay in the opening of the transfer relay
{1198} may be introduced via the RCC-02/03 remote control.
The transfer normally takes place without any interruption when the generator stops. It would
typically be 20 minutes in the event of the immediate loss of input voltage at “AC IN”.
The maximum current of the transfer relay is 30 A (50 A for XTH 8000-48). This means that the
permanent power of the consumers must be a maximum of 6,900 W to 230 V (11,500 W for the
XTH 8000-48). It cannot be higher if the “Smart Boost” function is activated {1126} (see chap.
6.2.7 p. 21). If the battery charger is in operation, part of this power will be used for the battery
charge.
When the transfer relay of the Xtender is active, the voltage at the output of the Xtender
is equivalent to that which is present at the input and cannot be influenced or improved
by the Xtender. The consumers are supplied by the source present at the “AC IN” input
via the transfer relay.
ATTERY CHARGER
B
6.2.4
The battery charger is designed in such a way as to guarantee charging of the battery that is as
complete as possible. The charging process is at four levels by default and guarantees optimum
charging of the batteries. The charging current is given by the configuration {1138} and can be
adjusted continuously from 0 to the nominal value with the help of the RCC-02/03.
ATTERY CHARGER
B
6.2.5
The battery charger for the Xtender is completely automatic and is designed in such a way as to
guarantee an optimum charge for the majority of the lead-acid or gel batteries. Once the transfer
relay is activated, the battery charger goes into operation and the charge indicator (44) lights up.
If the battery voltage is lower than the critical disconnection threshold {1488} operation of
the charger will be automatically prevented. Only the transfer relay is authorised to
operate in this case. The battery must then be recharged by an external source up to a
voltage higher than the critical disconnection threshold in order to allow the Xtender
charger to operate.
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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.
Once the absorption voltage {1156) is
reached, the cycle passes to voltage
a
e
d
Cycle de charge simplifié, sans limitation de
courant d'entrée
adjustment mode (d), known as the absorption phase, the duration of which is set by the
configuration {1157}. The minimum interval between two absorption cycles is limited by the
configuration {1161).
At the expiry of the absorption time, or if the absorption current is lower than the configuration
{1159}, the voltage is set to a lower value {1140}. This phase (e) is known as the maintenance or
“floating” phase.
Given the limiting function for the input current (see the following p. 21), it is perfectly normal for
the charge current to be lower than the selected current if the limit of the AC input current {1107}
is reached (b). In this event the AC IN indicator (45) flashes.
If the “smart boost” function is activated {1126} and the power required by the consumer exceeds
the power of the source, the battery will be discharged (c) despite the presence of the grid or the
generator. In this case the LED “charge” (4) goes out. The consumers must ensure that they
have average consumption that is less than the power of the source (generator or public grid) in
order to avoid a complete discharge of the battery. These situations are set out in the figure
below.
ACin=OK
{1156}
{1140}
{1143}
28
{1138}
In
0
29
Out
a
d
e
a
b c a
d
e c
Fig 3a
Charge cycle example with input current limitation "smart boost”
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Xtender
If the BTS-01 temperature sensor is used, the voltage adjustment thresholds for the battery are
corrected in real time by means of the battery temperature. The value of this correction is set by
the configuration {1139} in the configuration table p. 35.
Much more complex charge profiles or exclusion of the charger can be configured using
the RCC-02/03 remote control.
Configuration of the battery is the responsibility of the operator. Incorrect configuration
that does not correspond to the charging methods of the battery recommended by the
manufacturer may be dangerous and/or considerably diminish the battery service life. If
the factory settings are modified, it is imperative that the new values be entered in the
configuration table p. 35
IMITING THE INPUT CURRENT BY LIMITING THE CHARGER CURRENT
L
6.2.6
In order to best use the resources available at the input (depending on the generator size or the
grid output) the Xtender has a system known as power sharing.
This is a system that allows the current of the charger to be limited – from its target value {1138}
to 0 – according to the current used at the output in relation to the maximum current available at
the input set by the configuration {1107}. The greater the current at the output, the more the part
of the current at the input assigned to charging the battery is reduced. If the current exceeds the
limit, the transfer relay will be open and the consumers therefore supplied exclusively by the
inverter, as long a the output current exceeds the limit of the input current. Exceeding the limit
value may be authorised by the configuration of {1436}.
This system allows the sharing of power available by giving priority to the AC output (AC out) and
to the consumers who are connected to it. The charger will only use the power not utilised at the
output to ensure that the battery is charged. Once the charge current decreases by going into
“power sharing” mode, the indicator (45) flashes.
The limit value of the input current is set by the configuration {1107} and may be adjusted via the
RCC-02/03 remote control.
In the case of mobile applications the installation of an RCC-02/03 remote control is
recommended, in order to be able to adapt the value of the input current limit if
necessary, for each connection to a protected grid.
.
If the power usage at the output is greater than the input current value, the Xtender
cannot limit the current. This situation will then lead to the stoppage of the generator due
to overcharging or will release the upstream protection circuit for the Xtender. This major
drawback can be prevented by using the “smart boost” function described below.
HE INVERTER AS SOURCE BACKUP SMART BOOST FUNCTION
)
T
(“
”
6.2.7
The combined usage of the power sharing function and the smart boost function allows this
drawback to be overcome as mentioned above. The source backup function supplements
efficiently the charger current limiting function in order to ensure optimum protection of the fuse
upstream of the device. This system proves to be a decisive advantage particularly in all mobile
systems (boats, leisure vehicles and service vehicles) that are frequently connected to sources
with a limited value such as a portable or camping power supply. Despite a limited source, all the
greater power applications downstream of the Xtender remain functional.
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Steca
Xtender
When this function is activated, the battery can be fully discharged despite the presence
of the grid or the generator. The average power consumed by the user must not exceed
the power of the source, at the risk of discharging the battery.
The smart boost function is deactivated by default. To activate the function the RCC-02/03
remote control is required. When this function is activated {1126} it allows the current from the
battery to be supplied to the user in order to guarantee that the current at the input of the device
does not exceed the limit set {1107}.
If the input current limit is exceeded, the transfer relay will be opened immediately, thereby
protecting the upstream protection device. If the exceeding of the input current value limit is due
to a short-circuit downstream, the transfer relay will remain activated and the protection upstream
of the Xtender (H) will be requested.
The installation cabling must take this particular function into account, which allows a current
equivalent to the sum of all power outputs in the inverter and the AC source to be available at the
output.
If you have, for example, a 5 kW (22 A) source and an Xtender of 5 kW, the power available at
the output will be 10 kW. The downstream cabling must therefore be dimensioned accordingly. In
this example, the output cable must be dimensioned to support a current of 45 A. A dimensioning
table, fig. 1a, will help you to determine the output currents that dimension the protection devices
and the cable sections to be applied.
The Xtender can supply up to 10x the limit value of the input current {1107}.
If the extender is connected to a generator, this must have a power at least equal to half
of the power of the Xtender(s) to which it is connected.
TENDER PROTECTION
X
6.2.8
The Xtender is protected electronically against overloads, short-circuit, overheating and reverse
current (cabling of a voltage source on AC out).
The battery is protected in all cases against deep discharge. The indicator (52) flashes once
when the battery has reached the disconnection threshold {1108} and the inverter will stop some
time after {1190}. This threshold can be corrected dynamically depending on the instantaneous
power supplied by the inverter if the configuration {1191} is activated. In this case the value of the
dynamic correction is set by the parameter {1109}. The inverter will stop immediately if a critically
low voltage value set by the configuration {1188} is reached. The inverter will restart automatically
when the battery voltage has reached the restarting threshold {1110}.
If the inverter is repeatedly encountering this situation {1304} in a short period {1404}, it will stop
permanently and will only start again via an operator’s manual control.
In the event of overload or short-circuit at the output, the inverter stops for some seconds and
restarts. If the inverter is repeatedly encountering this situation {1300} in a short period, it will
stop permanently and will only start again via an operator’s manual control.
If the battery voltage exceeds the value set by the configuration {1121}, the inverter stops and
starts up again when the voltage is less than {1110}. If the Xtender is repeatedly encountering
this situation {1303} in a short period {1403}, it will stop permanently and will only start up again
via an operator’s manual control.
A battery voltage greater than 1.66 x the nominal voltage may lead to significant damage
or destroy the device.
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Xtender
Overheating of the Xtender: Insufficient ventilation, increased ambient temperature or obstructed
ventilation may lead to overheating of certain internal components of the unit. In this case, the
device will automatically limit its power output as long as this abnormal situation persists.
The Xtender is protected by the internal fuse from incorrect polarity (24 V and 28 V versions). The
Xtender XTH-3000-12 does not have an internal fuse and can be protected by an external 400 A
fuse.
UXILIARY CONTACTS
A
6.2.9
The Xtender has two dry reversing contacts that are potential-free. The status of the contacts in
idle mode (deactivated) is indicated by the annotations, N.C. = normally closed and N.O. =
normally open.
Maximum contact loads: 230 Vac / 24 Vdc: 16 A or:
> 36 Vdc / 3 A
These dry contacts are programmed by default for the following functions:
Contact no. 1 (AUX1) : alarm contact by default. It is activated when the inverter is out of service
or is working at reduced performance, either because of manual control or if there is an
operational fault such as overload, undervoltage of the battery, overtemperature, etc.
Contact no. 2 (AUX 2): The contact has a load shedding function by default and is activated when
the battery voltage corresponds to the configurations {1356/1357}.
These auxiliary contacts can be freely programmed by the RCC-02/03 remote control for various
applications.
The functions of the two auxiliary contracts can be modified and programmed variously with the
help of the RCC-02/03 control.
If the operator or installer requires different behaviour for the auxiliary contacts, they are both
freely and individually programmable depending on the battery voltage and the inverter status
and the internal clock.
The intelligent programming of the auxiliary contacts allows many applications to be considered
such as:
Automatic startup of the generator (two or three wires)
Automatic load shedding of the inverter (2 sequences)
Global or individual alarm
Automatic disconnection (load shedding) of the source
HE REAL TIME CLOCK
T
6.2.10
The Xtender has a real time clock that allows the functioning of the auxiliary contacts to be
managed, in particular. This clock must be adjusted via the use of the RCC-02/03 remote control.
If you wish to retain the adjustment of the clock even if the installation is out of operation (button
1)) or in the absence of a battery, a lithium-ion type 3.3 V disc battery (CR-2032) must be
inserted into the battery carrier (5) which is on the left of the junction box.
EMOTE CONTROL VIA DRY CONTACT
R
6.2.11
The functioning of the Xtender may be interrupted by opening the connection, normally between
the two terminal points “REMOTE ON/OFF”, fig. 8a-(7). Operation will recommence when this
connection is re-established. The device is delivered with a bridge between the 2 points of this
terminal.
It is also possible to control this function according to the different variants indicated in fig. 8b. If a
variant is used, the jumpers (b) must be positioned at 1 a-b and 2 a-b.
Operating voltage: Max. 60 V eff. (I max. 30 mA)
In multi-unit configurations (see below) the interruption of operation of just one of the system’s
units by the cabled control (7) involves the immediate interruption of operation of the other units
of the system. This input can be used, for example, as an emergency stop.
6.3 Multi-unit configurations
Several Xtenders can be used in the same system, either to create a three-phase system or to
increase the power output of a single or two phases. The implementation of this configuration
requires particular precautions and it must be installed and commissioned by qualified personnel
only.
The inverters selected must be of the same type and the same rated power output. There is a
shared battery bank.
In these multi-unit system, the units must be interconnected via a communication bus connected
to the connectors (3) by cable (art. no. CAB-RJ45-2) of a maximum length of 2 metres.
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Xtender
Interrupting this connection in a multi-unit system will lead to the stoppage – after 5 seconds – of
all the units in the system.
Various application examples are described from fig. 12 to fig. 19.
It is important to read and adhere to the descriptions associated with each of the figures
mentioned above
In configurations carrying several Xtenders, each unit is controlled independently using the
ON/OFF push button (41). When the on/off control is given via the RCC-02/03 remote control, it is
applied simultaneously to all units.
HREE PHASE SYSTEM
T
-
6.3.1
Three Xtenders of the same type can be used and combined in order to establish a three-phase
grid. An example of Fehler! Verweisquelle konnte nicht gefunden werden. is given at figs. 13.-
14.
When 3 Xtenders are cabled to form a three-phase grid, the cabled phases at the input determine
the jumper position for selecting the phase (10). It is vital to determine and select the phase for
each Xtender. If the grid is not available at the input of the master unit (phase 1) all the units of
the system pass into inverter mode. If only a single-phase source is available, it will be connected
to phase 1. The other two phases will therefore be supplied by the other two working units in
inverter mode.
NCREASING THE POWER AND CONNECTION IN PARALLEL
I
6.3.2
Up to three Xtenders can be cabled in parallel in order to increase the system’s rated power
output. In this configuration, all the ACin inputs of the Xtender must be cabled. One of the units
functions as master and will decide on the operation or suspension of the units in parallel
according to the consumer’s power demand. The yield of the installation is therefore still optimal.
An example of parallel connection is given in fig.12. and the comments on p. 30.
OMBINED SYSTEM
C
6.3.3
It is possible to combine a three-phase system with one or several phases made up of 2 or 3
Xtenders in parallel. An example of cabling is given at fig. 15.
It is therefore possible to combine up to nine Xtenders by running three Xtenders parallel in a
three-phase grid. An example of cabling is given in figs. 16 to 18 and the comments on p. 31.
6.4 Accessories
ONTROL CENTRE AND
C
REMOTE CONTROL DISPLAY
RCC-02, RCC-03 (
)
6.4.1
An RCC-02/03 remote display and programming unit can be optionally connected to the Xtender
via one of the two RJ45-8-type “Com. Bus” (3) connectors.
These connectors may only be used for connecting a CAN-ST compatible accessory, excluding
any other connection such as LAN, Ethernet, ISDN, etc.
The RCC-02/03 control centre is vital for modifying device configurations.
It also allows the following functions:
•
•
•
•
•
•
Display of function synopsis
Display of the measured operational values (current / voltage / power output, etc.)
Updating of software or implementation of customised software
Storage of inverter configuration
Updating of inverter configurations
Storage of error message history
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 24
Steca
Xtender
The features of the RCC-02 and the RCC-03 are the same. They only differ in their external
appearance. The RCC-02 is designed for wall mounting, whereas the RCC-03 is designed as a
tabletop device.
The RCC-03 model must be taken off the table to allow access to the SD card slot (during
updating, for example).
RCC-02: Dimensions: H x W x D / / 58 x 51.5 x 22 mm
RCC-03: Dimensions: H x W x D / / 58 x 51.5 x 22 mm
The two remote control models are delivered with a 2 m cable by default.
Cables of specific lengths (5 m, 20 m and 50 m) can be ordered.
The article no. is as follows: CAB-RJ45-xx. The length in metres is specified as xx
Up to 3 RCC-02/03 remote controls can be connected in series on the communication bus of one
Xtender or an Xtender multi-inverter system. In a system comprising a single Xtender, the
connection of the RCC-02 or RCC-03 may be conducted without stopping the Xtender (warm).
When connecting an RCC-02/03 remote control in a multi-unit system, it is recommended that all
units in the system be stopped and that the communication bus on the device on which the
connection is being made be terminated.
The 2 switches for terminating the communication bus, “Com. Bus" (4) both remain in
position T (terminated) except when both connectors are in use. In this case, and only in
this case, both must be placed in the O open position. If one of the two connectors is not
in use, the two termination switches (14) will be in position T.
TEMPERATURE SENSOR
BTS-01
6.4.2
The operating voltages for lead batteries vary depending on the
temperature. A temperature sensor is optionally available to correct the
battery voltage and guarantee an optimum charge whatever the battery
temperature. The correction factor given by the correction of the sensor
is set by the configuration {1139}
Article no. for the temperature sensor (including a cable of 3 m): BTS-01.
Dimensions: H x W x D / / 58 x 51.5 x 22 mm
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 25
Steca
Xtender
7 Control
7.1 Main on/off control
This switch (1) interrupts the electronic supply and all the Xtender peripherals. The residual
consumption on the battery is therefore less than 1 mA.
The ON/OFF switch is used only for the complete stoppage of the whole system.
7.2 Display and control parts
The Xtender has a ON/OFF button and light indicators
at the front of the device, allowing clear identification of
the operating mode.
The ON/OFF button allows the startup or complete
(41)
stoppage of the system such as it has been
programmed. In the systems comprising several units,
each unit is started or stopped individually. For a
simultaneous startup of all the units use the dry contact
the RCC-02/03 remote control.
Even when the equipment has stopped,
dangerous voltages may be present at
the Xtender input.
This indicator lights up when the equipment has
(42)
been stopped manually using the ON/OFF button (41).
It also allows the cause of an unintentional stoppage of
the device to be indicated via the different flashes, the
imminence of a stoppage or the temporary limitation of
its performance.
The table below describes the type of fault according to
the number of flashes on the indicator (42)
Indicated alarm
Comment
1x (Imminent) stoppage as a If the device has not yet stopped, it is recommended to
result of low battery voltage. disconnect all non-priority consumers and/or start up the
generator. If the Xtender has stopped it will restart
automatically when the battery voltage has reached the
correct value again {1110}. It can be restarted manually
using the ON/OFF button (41) as long as the battery voltage
is higher than the critical threshold {1488}.
2x Stoppage due to overload in In this event the equipment will make several attempts
the equipment, due to either restart {1133} every few seconds and will stop if the overload
load for the inverter.
cause of the overload without restarting. Restarting is carried
out manually by pressing the button (41).
3x Decrease in the rated output This may be due to too great a load for the device, at too
of the device due to a too high an ambient temperature or counteracted or obstructed
high internal temperature.
ventilation. The power output of the device will therefore be
limited to around 50% of the Pnom. including in charger
4x Battery voltage higher than
Check the cause of this excess voltage. The equipment will
the maximum limit set by the restart automatically when the voltage falls below the
configuration {1121}. threshold value {1122}.
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 26
Steca
Xtender
5x No
transfer.
Insufficient In this case, the Xtender remains in operation in inverter
power from the source
mode and does not allow the transfer relay to close. You
must increase the input current limit {1107}, or authorise the
exceeding of this limit {1436} or authorise backup on the
source {1126}, or disconnect some consumers (decrease of
loads).
6x Startup prevented due to Voltage is present at the device output. Check your cabling:
unwanted voltage at the correct the fault and start the installation again using a
device output.
manual control on the button (41).
7x Indicates missing voltage on Check the input protection devices (H) for all the system
one of the units of the units.
system in
a
multi-unit
configuration.
(43) This indicator is glowing continuously when the device is working.
It flashes when the equipment is temporarily stopped due to a fault displayed by the indicator (42)
or a ON/OFF control cabled at the ”Remote ON/OFF” input (7), or when the equipment is
intentionally put to idle mode by the master unit in a multi-inverter parallel system (see chap.
chap.6.3.2 - p. 24).
The equipment will restart automatically when the conditions that led to the temporary
stoppage have gone away.
This indicator is glowing continuously when the charger is working and has not yet reached
(44)
his absorption phase.
It flashes twice during the absorption phase and once during the floating phase.
If the smart boost mode has been activated, this indicator goes out temporarily when source
backup is required by users (loads).
(45) This indicator is glowing continuously when a n alternative voltage with correct values, either
in frequency {1112-1505-1506}, or in voltage {1199} is present at the AC IN input of the device
and the current limit set by the user has not been reached. It flashes when the current limit at the
input {1107} set by the user has been reached. In this case the charger current is reduced in
exceeded nevertheless, the Xtender goes back to inverter mode (transfer relay open) and the
indicator (42) will keep flashing as long as the user current exceeds the limit value of the input
current {1107}.
If the smart boost mode (see chapter 6.2.6 – p. 21) is used and the inverter is part of the user
supply – therefore the battery is discharged – the “charge” indicator (44) will be glowing.
This indicator is glowing continuously when an alternative voltage of 230V is present at the
(46)
equipment output. It flashes when the device is in “load search” mode according to chapter 6.2.2
– p. 18.
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 27
Steca
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.
8.1 Product recycling
The models of the Xtender series conform to the European directive 2002/95/EC on hazardous
substances and does not contain the following elements: lead, cadmium, mercury, hexavalent
chrome, PBB or PBDE.
To dispose of this product, please use the service for the collection of
electrical waste and observe all applicable obligations according to the place
of purchase.
9 EC declaration of conformity
The inverter and accessories described in this manual comply with the following standards:
EN 61000-6-1, EN 61000-6-3, EN 55014, EN 55022, EN 61000-3-2, Dir. 89/336/EEC,
LVD 73/23/EEC, EN 50091-2, EN 60950-1.
CH -1950 Sion, 31 January 2007
STUDER Innotec (R. Studer)
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 28
Steca
Xtender
10 Figure comment tables
Fig. Description and comment
1a Dimensioning table for the downstream protection device (F). See chap. 4.5.5 – p. 15.
1b Assembly order for connecting the battery.
The assembly order for the battery connections must be adhered to. Bolts 20 and 21 are
of different sizes:
(21): M8x45 for fastening on the fuse
(20):M8x35 for fastening without a fuse
If there is no fuse installed, the two bolts are of identical length: M8x35
The battery clamp fitted on the fuse (24) must have a diameter of M10 in order to match
the centering lip of the ceramic isolation disc.
Ensure that the battery connections are tightened sufficiently.
2a Dimensions and fastening the device
The support (wall) must be appropriate for supporting the increased weight of the device
without any risk.
2b Installation distance
Insufficient distance or an increased ambient temperature can reduce the rated power
output of the device.
3a Battery charge cycle
manual may be programmed via the RCC-02/03 remote control.
Simplified battery charge cycle:
3c Type plate and series no.
The intactness of this label is vital for any possible warranty claims. It must not be altered
or removed.
4a Device connection box
See chapter 3.6.2 – p. 8.
4b Control table See chapter 7.1 - p. 26.
5a 12 V battery: connection in series and in parallel / series for 2 V cell
5b 12 V battery: connection of 12 V battery in parallel
5c 24 V battery: connection in series and in parallel / series for 2 V cell
5d 24 V battery: connection in series and in parallel / series for 12 V battery block
6a 48 V battery: connection in series and in parallel / series for 12 V battery block
6b 48 V battery: connection in series for 12 V battery block
6c 48V battery: Series connection of 2V cell
6d 48 V battery: connection in parallel / series for 2 V cell
7
Xtender circuit diagram
8a Single-phase installation (AC and DC part)
HIS EXAMPLE ILLUSTRATES THE MOST ROUTINELY USED INSTALLATION ALLOWING THE
T
,
10.1.1
ATTAINMENT OF AN EMERGENCY SYSTEM OR A HYBRID SYSTEM REMOTE SITES
(
)
ENSURING THE SUPPLY IN SINGLE PHASE FROM A GENERATOR AND OR THE BATTERY
-
/
WHEN THE
SOURCE IS ABSENT
EE ALSO CHAPTER
. S
AC
4.1.2 – p. 10.
8b ON/OFF remote control variants
This example illustrates the various options for connecting the “REMOTE ON/OFF” input
(7), enabling the ON and OFF controls of the Xtender via a contact or a voltage source.
See also chap. 6.2.11– p. 23.
The maximum length for this control should not exceed 5 m.
8c Installation with three-phrase source and secured single-phase output – AC and DC
part
In this example, the three-phase users will only be supplied when the generator is in
operation.
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 29
Steca
Xtender
Fig. Description and comment
9a Fixed installation with plug connection to the single-phase source – AC part
Special feature: The connection of the neutral upstream and downstream of the Xtender
(C) is prohibited in this configuration (presence of a plug upstream). See also chapter
6.2.11 – p. 23.
9b Fixed single-phase installation with connection by plug to a three-phase source –
AC part
Special feature: The connection of the neutral upstream and downstream of the 'Xtender
(C) is prohibited in this configuration (presence of a plug upstream). See also chapter
6.2.11 – p. 23.
10a Example of installation in a vehicle (AC part)
Special features: The connection of the neutral (C) is not permitted (presence of a
socket upstream). The earth-neutral connection is absent in inverter mode (neutral stand-
alone system). The safety is guaranteed by the equipotential bonding (frame). The
automatic re-establishment of the earth-neutral connection downstream of the device in
inverter mode can be programmed. Consult the table of figures, item (V).
See also chapter 4.2.3 – p. 11.
10b Example of installation in a boat without an isolation transformer – AC part
Special feature: Where there are multiple sources, for example connection to the dock
and on-board generator, a source reverser (X) guaranteeing switching with phase and
neutral interruption must be installed.
11 Example of a hybrid installation:
This is the most up-to-date system used that enables establishing an emergency system
or a hybrid system (grid-remote sites) ensuring a single-phase supply from a generator
and/or the battery.
Special feature: In a hybrid installation, the sources for recharging a battery (k-m) are
connected directly to the batterie via their own control system. This does not interfere with
12 Example of parallel connection of 2 or 3 Xtenders
Only Xtenders of the same power output may be connected in parallel.
Cabling precautions: The cable lengths and sections of AC in input (A) and AC out output
(B) must be the same for all inverters in parallel in the same phase.
Variant: The sum of the lengths of the cables (A1) + (B1) of Xtender 1 must be the same
as the sum of the lengths of the cables (A1) + (B1) of Xtender 2, and ditto for Xtender 3
The AC input for each Xtender must be protected individually by a protection device (H)
of the appropriate calibre.
The protection device at the output of the Xtender (F) can be shared and of appropriate
calibre at the sum of the currents of the devices in parallel.
If necessary, the ON/OFF remote control (7) will be implemented on only one of the
devices of the installation and suspends or authorises the operation of all the Xtenders in
the installation.
13 Example of three-phase cabling of 3 Xtenders – three-phase input
Special features: When 3 Xtenders are cabled to form a three-phase grid, the cabled
phases at the input determine the jumper position for selecting the phase (10). It is vital to
determine and select the phase for each Xtender.
See also chapter 6.3.1 – p. 24.
The comments for fig. 12 - 3 to 7 are valid.
14 Example of three-phase cabling of 3 Xtenders – single-phase input
Special feature:
6.3.1 – p. 24.
The comments for fig. 13 are valid.
15 Example of three-phase cabling for input and output with reinforced phase
Special feature: This installation allows a three-phase supply with a reinforced phase The
reinforced phase may be incorporated on two or even three inverters in parallel. The
protection device at the output on which 2 or 3 Xtenders are cabled must be calibrated
according to the sum of the maximum currents of the devices in parallel.
The comments for fig. 12 to 14 are valid.
Installation and Operating Instructions 723.932 Xtender V0.511
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Steca
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 Example of cabling of 9 Xtenders in three-phase and parallel – DC part (distribution
bar)
18 Example of cabling of 9 Xtenders in three-phase and parallel – DC part in star
formation
11 Figure element tables
Elem. Description
Comment
a
RCC-02/03
remote control
This device allows complete configuration of the installation as well
as displaying the system behaviour. It is recommended but not
p.24.
b
Battery
The battery capacity is constituted according to figures 5a to 6d
based on the required voltage.Note: It is vital that the voltage and
the polarity of the battery be checked before connecting to the
inverter. An overload or incorrect polarity could seriously damage
the Xtender. Correct dimensioning of the batteries is essential for
troublefree operation of the system. See chapter 4.3.1 - p. 11.
Communications cable. Only an original cable supplied by Steca
may be used. The total length of the communications cable must
not exceed 100 m for 3 x RCC-02/03 or 300 m for a single RCC-
02/03.
A fuse-type device, thermal circuit breaker or magnetic-thermal
circuit breaker (see fig. 8a) must be installed on at least one of the
two battery conductors. It will ideally be placed on the positive pole
of the battery and as close as possible to this. The calibre of the
device is selected according to the cable section used.
If the negative pole of the battery is not earthed, it must also be
protected by such a device.
e
f
Communications
cable
Protection
devices
g
Battery cables
(positive)
The battery cables must be of the correct section and appropriately
set and tightened at the two extremities. They must be as short as
possible, particularly for the negative pole. The total length of the
cables must not exceed 6 m.
h
j
k
Distribution bar
Distribution bar
Wind-powered
generator
Positive pole of the battery
Negative pole of the battery
One or more wind-powered generators with their own regulation
system may be used to directly charge the battery. Its dimensioning
does not depend on the Xtender and does not interfere with it.
l
m
Solar generator
One or more solar-powered generators with their own regulation
system may be used to directly charge the battery. Its dimensioning
does not depend on the Xtender and does not interfere with it.
A control device may be connected to the terminals (7) of the
Xtender. See chapter 6.2.11 - p. 23.
The length of the connection cable must not exceed 5 m.
The sensor is placed in immediate proximity to the battery. If the
installation comprises several Xtenders, a single sensor is
connected to one of the units. The battery voltage level will be
corrected by means of the ambient temperature. {1139}.
r
t
Remote control
via dry contact
BTS-01
temperature
sensor
u
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 31
Steca
Xtender
Elem. Description
Comment
A
B
C
Input supply
cable
The section is determined by means of the maximum current at
source and the protection device (H). In multi-unit systems, cables
(A) of the same phase must have the same length and section (see
comment fig. 12-2/3).
Output supply
cable
In multi-unit systems, cables (B) of the same phase must have the
same length and section (see comment fig. 12-2/3). The section
must be selected by means of the Xtender’s output current given
on the type plate and the protection device selected for the input
(see fig. 1a).
Connection of the See chapter 4.2 - p. 10.
neutrals In a fixed installation where the neutral is connected to the earth at
a single installation point upstream of the Xtender, it is permissible
to carry out a connection of the neutrals in order to preserve an
unchanged earthing system downstream, independent of the
operating mode of the Xtender. This choice shows the advantage
of keeping the differential protection devices downstream of the
Xtender.
This connection (C) is not permitted if a socket is installed
upstream of the Xtender.
D
E
Differential circuit A protection device must be installed downstream of he source (G
breaker
or U) according to the local requirements and in compliance with
the applicable regulations and standards.
Earth-neutral
The neutral is earthed at a single point of the installation,
connection bridge downstream of the source and upstream of the protection device(s)
at the default current (DDR). When several sources are available,
each source must have an earthed neutral. If the source has to be
retained with an isolated earthing system (IT) the applicable local
provisions and regulations must be applied.
F
AC output
protection
devices for the
Xtender
A protection device dimensioned in dependence of the cable
section used may be installed downstream of the Xtender (main
circuit breaker before distribution). The cable section is to be
dimensioned according to the calculation table of maximum output
current (fig. 1). The Xtender has an internal current limitation the
value of which is stated on the type plate (35).
G
H
Generator
The generator is dimensioned according to the requirements of the
user. Its rated current will determine the configuration adjustment
{1107} “maximum current of the AC source”.
The protection device at the input of the Xtender must be
dimensioned according to the power output of the source at the
cable section used. It will not exceed a calibre equivalent to the
input current “I AC in” given on the type plate of the unit (35).
Protection
devices at the
Xtender input
J
K
Connection plug / If the Xtender is connected to an AC source by means of a plug,
socket
the connection cable must not exceed a length of 2 m, and the
socket must remain permanently accessible. The socket will be
protected by a protection device of appropriate calibre. The
connection of the neutrals (C) is prohibited in this case.
L
P
R
S
Secured grid
Distribution to the users supplied by the grid or the generator when
this is present or by the Xtender within the limit of its power output
from energy stored in the battery. This distribution is carried out in
conformity with the local standards and regulations.
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 32
Steca
Xtender
Elem. Description
Comment
T
U
V
Non-secured grid Distribution to users supplied exclusively via the present grid or the
generator.
This distribution is carried out in conformity with the local standards
and regulations.
Public grid
The connection to the public grid imposes adherence to the local
standards and regulations at the responsibility of the installer. The
installation should, in principle, be checked and approved by an
official body.
Automatic earth-
neutral
connection
This connection is deactivated by default. In may be used in certain
specific cases for automatically re-establishing the neutral system
type TT (TNC, TNS, TNC-S) when the Xtender is in inverter mode.
The activation is carried out via RCC-02/03 remote control
configuration {1485}. This operation may only be carried out by
qualified personnel, under the responsibility of these personnel,
and in conformity with the local standards and regulations.
This device (optional) is generally used to reduce the risk of
electrolytic corrosion due to the direct current when a boat is
connected at the dock.
W
X
Galvanic isolator
Source reversing When the installation has more than one supply source, it is
switch
necessary to install a switching device between the sources,
simultaneously switching the neutral and the phase(s) of these
sources. In all cases this device (manual or automatic) must
guarantee interruption of the connected source before its
connection to another source.
Y
Isolation
transformer
This device (optional) prevents the risk of galvanic corrosion due to
direct currents when a boat is connected at the dock.
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 33
Steca
Xtender
12 Control and display parts for the Xtender (fig. 4b)
See chapter 7.1 - p. 26.
Pos. Deno Description
Comments
minat
ion
41 ON/OF ON/OFF button
F
The ON/OFF button allows the startup or complete
stoppage of the system such as it has been programmed.
When there are several units in the same system, each unit
must be started up or stopped individually using this button.
42 OFF
43 ON
Light indicator for When the light indicator flashes it indicates the cause of the
stoppage of the
unit
stoppage of the unit, its imminent stoppage or the limitation
of its rated power output according to chapter 7.1 - p. 26.
Light indicator
showing that the
equipment is in
operation
This indicator is glowing continuously when the device is
working. It flashes when the equipment is at a temporary
stop. Note: The equipment will restart automatically when
the conditions that led to the temporary stoppage have gone
away.
44 Charg Light indicator
This indicator is glowing continuously when the charger is in
operation and has not yet reached the absorption phase.
It flashes twice during the absorption phase and once during
the maintenance phase.
e
showing that the
battery is being
charged
If smart boost mode has been activated it is possible that
this indicator will go out temporarily when source backup is
45 AC in Light indicator
showing the
This indicator is glowing continuously when an alternative
voltage with correct values is present at the AC IN input (13)
of the device and the current limit {1107) set by the user has
not been reached. It flashes when this limit is reached (see
presence of
correct and
synchronised
input voltage
46 AC out Light indicator
showing the
This indicator is glowing continuously when an alternative
voltage of 230V is present at the device output. It flashes
when the device is in “load search” mode due to the
absence of users. (See chapter 6.2.2 – p. 18)
presence of a
voltage at the
output
13 Type plate elements (fig. 3b)
See also chapter 7.1 - p. 26.
Pos. Denomination Description
Comments
31
Model
Model
32 Pnom/P30
33 U Battery
Rated power output / power for 30 minutes
Rated battery voltage (input area)
28
34 U ACin
Rated AC input voltage (input area)
Maximum current at input / output
118
35 I ACin/out
21.
36 U ACout
37 I Charge
Rated output voltage
Maximum charger current
Or according to {1286}
19
38 SN:xxxxxxxxxx Serial no.
39 IPxx
Protection degree according to IEC 60529
Installation and Operating Instructions 723.932 Xtender V0.511
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Xtender
14 Table of standard configurations
No. of
Denomination / description
Fact. Mod. G1 G2 G3
config.
valuevalue
1
2
3
kVA kVA kVA
3.5
7
12
1107 Maximum current of the AC source
1108 Undervoltage of the empty battery
1109 Sub-voltage of the charged battery
A
30
V/cell 1.9
V/cell 1.75
1110 Restart voltage of the inverter after undervoltage of the V/cell
battery
2
1111 Automatic startup at energisation
1111 Automatic startup at energisation of the battery
1112 Inverter frequency
No
No
50
Hz
1121 Maximum DC voltage for stopping the Xtender
1126 Source backup (smart boost) permitted
1133 Number of restarts after stoppage
1138 Battery charge current
V/cell 2.84
No
2
A
80
1139 Battery voltage correction according to the temperature
mV/° -5
C/cell
1140 Battery maintenance voltage
1156 Battery absorption voltage
1157 Duration of absorption
V/cell 2.27
V/cell 2.4
h
2
2
1159 Current at end of absorption
Adc
1187 Sensitivity of the charge detection
3
1190 Duration of undervoltage of battery before disconnection
1191 Dynamic compensation for undervoltage
1198 Time elapsing before transfer relay opens
1199 ACin voltage causing the opening of the transfer relay
1200 Immediate open critical threshold for the transfer
min.
3
Yes
0
180
50
5
sec.
Vac
Vac
1300 Number of overloads permitted before definite stoppage
--
2
3
1303 Number of battery overvoltages accepted before definite --
stoppage
1304 Number of battery undervoltages permitted before definite --
stoppage
3
1309 Minimum ACin voltage to authorise charging
1403 Period for counting battery overvoltages
Vac
185
30
sec.
sec.
Vac
1404 Period for counting battery undervoltages
30
1432 Maximum ACin voltage to switch to inverter mode
1436 Authorise exceeding of the input current limit without
interrupting the transfer
265
No
1470 ACin voltage hysteresis for closing the transfer relay
1485 Automatic earth-neutral connection in inverter mode
Vac
20
No
1488 Serious undervoltage of the battery
1505 Delta of higher frequency accepted
V/cell 1.5
Hz
15
1506 Delta of lower frequency accepted
1286 Output voltage
Hz
5
Vac
227
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 35
Steca
Xtender
To modify the configurations, please refer to the operating instructions for the RCC-
02/03 remote control
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 36
Steca
Xtender
15 Technical data
Model
XTH 3000-12 XTH 5000-24 XTH 6000-48 XTH 8000-48
Inverter
Rated battery voltage
Input voltage range
Continuous power @ 25 °C
Smart boost power
30 minute charge @ 25 °C
5 second charge @ 25 °C
Maximum charge
Maximum asymmetrical charge
Load detection (standby)
Admissible cos phi
12 V
24 V
48 V
48 V
9.5 - 17 V
2,500 VA
2,500 VA
3,000 VA
19 - 34 V
4,000 VA
4,000 VA
5,000 VA
38 - 68 V
5,000 VA
5,000 VA
6,000 VA
39 - 68 V
7,000 VA
7,000 VA
8,000 VA
3 x Pnom
Up to short-circuit
Up to Pnom
2 to 25 W
0.1 – 1
Maximum efficiency
Open-circuit
93%
94%
96%
96%
power 1.7 W/2.2 W/14 1.8 W/2.5 W/20 2.2 W/3 W/22 W 2.2 W/3.8 W/34
OFF/standby/ON
W
W
W
Output voltage
230 Vac (-10% /0)
Output frequency
50/45-65 Hz +/- 0.05% (quartz-controlled)
<2%
0.5 ms (charge leap from 0 to 100%)
Automatic disconnection then 2 startup attempts
Harmonic distortion
Dynamic correction
Overcharge and short-circuit
Overheating protection
Battery charger
Alarm prior to disconnection and automatic restart
6-phase battery charger
Adjustable charge current
Input current sharing system
Maximum input voltage
AC input voltage range
Admissible input frequency
(PFC)
Programmable I-U-Uo-equalisation-Uo(low)-U(periodic)
0 - 160 A
0 - 140 A
1 - 30 A
0 - 100 A
0 - 120 A
1 - 50 A
265 Vac
Level of detection adjustable from 150 to 230 Vac
45 - 65 Hz
EN 61000-3-2
Battery control (factory value / adjustable range with RCC-02)
End of absorption
by duration 4 / 0.25 - 10 h or by current - / 4 - 30 A
Absorption voltage
14.4 / 9.5 - 18 V 28.8 / 19 - 36 V
- / 9.5 - 18 V - / 19 - 36 V
13.6 / 9.5 - 18 V 27.2 / 19 - 36 V
57.6 / 38 - 72 V
- / 38 - 72 V
54.4 / 38 - 72 V
-- / 38 - 72 V
Periodic absorption voltage
Maintenance voltage
Reduced maintenance voltage
Equalisation
- / 9.5 - 18 V
- / 19 - 36 V
End of equalisation
Equalisation voltage
- / 9.5 - 18 V
- / 19 - 36 V
- / 38 - 72 V
10.8 / 9.5 - 18 V 21.6 / 19 - 36 V 43.2 / 38 - 72 V
- / 0 - 32 days
- / 0 - 10 hours
Temperature compensation
General data
-5 / 0 to-8 mV/°C/cell (optional BTC-01)
Auxiliary contacts
2 independent contacts 16 A - 250 Vac (potential-free 3 points)
Maximum transfer relay current
Maximum transfer time
Weight
30 A
50 A
<25 ms
34 kg
40 kg
42 kg
46 kg
Dimensions: H x W x D [mm]
Protection degree
220x290x500
IP23
220x310x500
Conformity
EN 61000-6-1, EN 61000-6-3, EN 55014, EN 55022, EN 61000-3-2,
Dir. 89/336/EEC, LVD 73/23/EEC
Operating temperature range
Ventilation
-20 to 55 °C
Forced from 45 °C
Noise level
Warranty
<35 dB / <50 dB (without / with ventilation)
2 years
Options
Battery temperature sensor :
BTS-01
Remote control and programming centre: RCC-02 / RCC-03
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 37
Steca
Xtender
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 38
Steca
Xtender
Installation and Operating Instructions 723.932 Xtender V0.511
Seite 39
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