Fronius IS 15, FRONIUS IS 30 Operating Instructions Manual

FRONIUS IS 15 / 30

GB

Operating instructions

Stand-alone inverter:

42,0426,0048,EN 012007

Dear Reader

Introduction

Thank you for choosing Fronius - and congratulations on your new, technically high­grade Fronius product! This instruction manual will help you get to know your new
machine. Read the manual carefully and you will soon be familiar with all the many
great features of your new Fronius product. This really is the best way to get the most
out of all the advantages that your machine has to offer.

Please also take special note of the safety rules - and observe them! In this way, you
will help to ensure more safety at your product location. And of course, if you treat your
product carefully, this definitely helps to prolong its enduring quality and reliability - things
which are both essential prerequisites for getting outstanding results.

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Safety rules

DANGER!

WARNING!

CAUTION!

NOTE!

“DANGER!” indicates an imminently hazardous situation which, if not

avoided, will result in death or serious injury. This signal word must be
limited to the most extreme situations. This signal word is not used for
hazards relating to property damage unless there is also a risk of personal
injury appropriate to this level.

“WARNING!” indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury. This signal word is not used
for hazards relating to property damage unless there is also a risk of perso­nal injury appropriate to this level.

“CAUTION!” indicates a potentially hazardous situation which, if not avo­ided, may result in minor or moderate injury. It may also be used to draw
attention to unsafe practices that may cause damage to property.

“NOTE!” indicates a situation which implies a risk of impaired results and
damage to the equipment.

Important!

General Remarks

“Important!” indicates practical hints and other particularly useful informati-

on. It is not a signal word for a harmful or dangerous situation.

Whenever you see any of the symbols shown above, pay close attention to
the contents of the manual!

This equipment has been manufactured in accordance with the state of the
art and general safety-engineering principles. Nevertheless, incorrect opera­tion or misuse may still endanger

- the life and well-being of the operator or of third parties,

- the equipment and other tangible assets belonging to the owner/operator,

- working efficiently with the equipment.

All persons involved in any way with starting up, servicing and maintaining
the equipment must

- be suitably qualified

- have good knowledge of dealing with electrical installations and

- read this instruction manual thoroughly and follow the instructions to the
letter.

The instruction manual must be kept at the machine location at all times. In
addition to the instruction manual, it is important to comply with both the
generally applicable and local accident prevention and environmental protec­tion regulations.

All the safety instructions and warning signs on the machine itself:

- must be kept in a legible condition

- must not be damaged, must not be removed

- must not be covered, pasted or painted over

I

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General Remarks

(continued)

For information about where the safety instructions and warning signs are
located on the machine, please refer to the section of your machine’s in­struction manual headed “General Remarks”.

Any malfunctions which might impair machine safety must be remedied
immediately before the machine is switched on.

Your safety is at stake!

Utilisation for
Intended Purpose
Only

Ambient
Conditions

The machine may only be used for jobs as defined by the “intended purpose”.

Utilisation for any other purpose, or in any other manner, shall be deemed "not
in accordance with the intended purpose". The manufacturer shall not be
liable for any damage resulting from such improper use.

Utilisation in accordance with the “intended purpose” also comprises

- thorough reading of and compliance with all the instructions, safety in­structions and warnings given in this manual

- performing all stipulated inspection and servicing work

- installation in accordance with the instruction manual

Where appropriate, the following guidelines should also be applied:

- regulations of the power supply company for input to the grid

- information provided by the manufacturer of the solar modules

Operation or storage of the machine outside the stipulated range is deemed
“not in accordance with the intended use”. The manufacturer shall not be
liable for any damage resulting therefrom.

Please refer to the technical data in your instruction manual for accurate
information about the permissible ambient conditions.

Qualified Staff The servicing information provided in this instruction manual is only intended

for qualified staff. An electric shock can be fatal. Please do not carry out any
activities other than those referred to in the documentation. This also applies
even if you are suitably qualified.

All cables and other leads must be firmly attached, undamaged, properly
insulated and adequately dimensioned. Have loose connections, scorched,
damaged or under-dimensioned cables and wires repaired immediately by
an authorised specialist company.

Maintenance and repair may only be carried out by an authorised specialist
company.

There is no guarantee in the case of parts sourced from other suppliers that
these parts have been designed and manufactured to cope with the stresses
and safety requirements that will be placed on them. Use only original spare
parts (this also applies to standard parts).

Do not carry out any alterations, installations or modifications to the machine
without first getting the manufacturer’s permission.

Replace immediately any components that are not in perfect condition.

ud_fr_se_sv_00923 022009

II

Safety Precauti­ons at the Machi­ne Location

Ensure when installing machines with cooling-air vents that the cooling air can flow freely
through the air vents without obstruction. Only operate the machine with the degree of
protection specified on the rating plate.

Information on
noise emission
values

EMC device
classifications

The inverter generates a maximum sound power level of <80 dB(A) (ref. 1pW)
when operating under full load in accordance with IEC 62109-1.

The device is cooled as quietly as possible with the aid of an electronic tempe­rature control system, and depends on the amount of converted power, the
ambient temperature, the level of soiling of the device, etc.

It is not possible to provide a workplace-related emission value for this device
because the actual sound pressure level is heavily influenced by the installati­on situation, the power quality, the surrounding walls and the properties of the
room in general.

Devices with emission class A:

- are only designed for use in an industrial setting

- can cause conducted and emitted interference in other areas.

Devices with emission class B:

- satisfy the emissions criteria for residential and industrial areas. This
also applies to residential areas in which power is supplied from the
public low-voltage grid.

EMC device classification as per the rating plate or technical specifications

EMC measures In certain cases, even though a device complies with the standard limit

values for emissions, it may affect the application area for which it was
designed (e.g. when there is sensitive equipment at the same location, or if
the site where the device is installed is close to either radio or television
receivers).
If this is the case, then the operator is obliged to take appropriate action to
rectify the situation.

Mains connection

High-performance devices (> 16 A) can affect the voltage quality on the mains
network because they can feed powerful current into the main supply.
This may affect a number of types of device in terms of:

- connection restrictions

- criteria with regard to maximum permissible mains impedance

- criteria with regard to minimum short-circuit power requirement

*)

at the interface with the public mains network

*)

*)

see Technical Data

In this case, the plant operator or the person using the device should check
whether or not the device is allowed to be connected, where appropriate
through discussion with the power supply company.

III

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Electrical Installa­tions

Electrical installations may only be executed in accordance with the relevant
national and regional standards and specifications.

ESD Protective
Measures

Safety Precau­tions in Normal
Operation

Safety markings

Danger of damage to electronic components due to electrostatic discharge.
Take appropriate protective measures when replacing and installing the
components.

Only operate the machine if all its protective features are fully functional. If
any of the protective features are not fully functional, there is a danger to:

- the life and well-being of the operator or other persons

- the equipment and other tangible assets belonging to the owner/operator

- working efficiently with the equipment.

Have any safety features that are not fully functional repaired by an autho­rised specialist company before switching the machine on again.

Never bypass or disable safety features.

Equipment with the CE mark fulfils the basic requirements of the Guideline
Governing Low-Voltage and Electromagnetic Compatibility. (More detailed
information about this may be found in the Annex or in the section of your
documentation headed “Technical Data”.)

Disposal

Data security

Copyright

Do not dispose of this device with normal domestic waste!
To comply with the European Directive 2002/96/EC on Waste Electrical and
Electronic Equipment and its implementation as national law, electrical
equipment that has reached the end of its life must be collected separately
and returned to an approved recycling facility Any device that you no longer
require must be returned to our agent, or find out about the approved collec­tion and recycling facilities in your area.
Ignoring this European Directive may have potentially adverse affects on the
environment and your health!

The user is responsible for backing up data relating to changes made to
factory settings. The manufacturer will not accept liability if personal settings
are deleted.

Copyright to this instruction manual remains the property of the
manufacturer.

The text and illustrations are all technically correct at the time of going to
print. The right to make modifications is reserved. The contents of the
instruction manual shall not provide the basis for any claims whatever on the
part of the purchaser. We should be most grateful for your comments if you
have any suggestions for improvement, or can point out to us any mistakes
which you may have found in the manual.

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IV

Table of contents

General remarks ........................................................................................................................................... 2

Basic system principle .............................................................................................................................. 2

Device concept......................................................................................................................................... 2

Application areas ...................................................................................................................................... 2

Options ..................................................................................................................................................... 2

Functional principle .................................................................................................................................. 3

Controls and connections .............................................................................................................................. 4

General remarks ...................................................................................................................................... 4

Controls and display ................................................................................................................................. 4

Connections and main switch .................................................................................................................. 5

Before commissioning ................................................................................................................................... 6

General remarks ...................................................................................................................................... 6

Utilisation in accordance with „intended purpose“ .................................................................................... 6

Setup regulations ..................................................................................................................................... 6

Connecting the battery and consumers ................................................................................................... 6

Fitting and connecting the inverter ................................................................................................................ 7

General remarks ...................................................................................................................................... 7

Fitting the inverter / Opening the connection compartment...................................................................... 7

Connecting the inverter / Starting up the consumers ............................................................................... 8

Operating scheme ........................................................................................................................................ 11

Symbols used..........................................................................................................................................11

Available modes ...................................................................................................................................... 11

Display ................................................................................................................................................... 12

Menu level ................................................................................................................................................... 13

General remarks .................................................................................................................................... 13

Navigation in the menu .......................................................................................................................... 13

Selecting the display visualisation .......................................................................................................... 15

Retrieve messages ................................................................................................................................ 15

Battery menu .......................................................................................................................................... 16

Inverter menu ......................................................................................................................................... 17

Consumer menu .................................................................................................................................... 18

External connection ..................................................................................................................................... 21

General remarks .................................................................................................................................... 21

Connecting external devices .................................................................................................................. 21

Configuring the relay .............................................................................................................................. 22

Multi-device mode ....................................................................................................................................... 23

General remarks .................................................................................................................................... 23

Connecting inverters to one another ...................................................................................................... 23

Connecting to single-phase mains supply .............................................................................................. 24

Connecting to three-phase mains supply ............................................................................................... 25

Connecting the battery Local / Central ................................................................................................... 25

Battery connection local / central ........................................................................................................... 26

Configuring the devices .......................................................................................................................... 27

Troubleshooting........................................................................................................................................... 28

General remarks .................................................................................................................................... 28

Service codes displayed ........................................................................................................................ 28

Service, maintenance and disposal............................................................................................................. 32

General .................................................................................................................................................. 32

On a regular basis or as required........................................................................................................... 32

Technical data ............................................................................................................................................. 33

FRONIUS IS 15 / IS 15 - 48 V ................................................................................................................ 33

FRONIUS IS 30 / IS 30 - 48 V ................................................................................................................ 34

Fronius worldwide

1

General remarks

Basic system
principle

Device concept

FRONIUS IS inverters open up totally new prospects for an off-grid power supply. The
new stand-alone inverter is extremely light, can be connected in parallel, offers simple
on-site servicing, total flexibility in terms of configuration and has an informative graphi­cal display.

Stand-alone systems store the power produced (e.g. from solar modules) in a battery
and make it available as alternating current when required.

As the user’s electricity needs increase, up to 5 additional inverters per phase can be
connected in parallel in 3 phase (maximum) operation, giving a total of 15 FRONIUS IS
inverters in a system. The original set-up can be upgraded at any time by installing
additional inverters, making the system extremely flexible and future-proof.

The backlit, self-explanatory display is a highlight in itself. The display provides informati­on on the entire system in both graphical and alphanumerical format. The well laid-out
display provides detailed information and shows important readings including battery
charge level and consumption values.

The company’s decades of experience in high frequency technology means that Fronius
devices are exceptionally fault resistant. If a fault should occur, the faulty circuit board
can be replaced quickly and easily on site by our After-Sales Service or by the installer.
The device does not have to be dismantled or sent away. The result - downtime is kept
to a minimum and the power supply is restored in the shortest time possible.

Application areas The FRONIUS IS is ideal for use on holiday cottages, mobile homes and boats right

through to entire village power supplies that can be easily supplied by stand-alone
systems.

Options

Available options:

- Ambient temperature sensor

- Battery temperature sensor

- SYNC module IS kit

2

Functional prin­ciple

The FRONIUS IS can be operated as a single device or in parallel mode in conjunction
with several other devices, depending on the power required. Up to 5 devices may be
operated in single-phase mode or up to 15 devices in three-phase mode.

Important! The Sync Module IS is also needed for multi-device operation.

Fig. 1 Single operation: 1-phase mode

Fig. 2 Multi-device operation: 2 to 5 devices are possible in 1-phase mode

Fig. 3 Multi-device operation: Up to 5 devices per phase are possible in 3-phase mode

3

Controls and connections

General remarks

Controls and
display

NOTE: As a result of firmware updates, you may find that there are functions

available on your device that are not described in these operating instructions
or vice versa. Certain illustrations may also differ slightly from the actual cont­rols on your device. However, the functionality of these controls is identical.

WARNING! Operating the equipment incorrectly can cause serious injury and
damage. You should not use the functions described until you have thoroughly
read and understood the following documents:

- These operating instructions

- All the operating instructions for the system components, especially the
safety regulations

(3)

(1)(2)

Fig. 4 Controls and display

No. Function

(1) Navigation keys

For navigating around the available operating modes and menus

(2) Display

Displays the operating status, toggles between graphical and numerical display

(3) Operating mode display

Displays the active operating mode

- STB: Standby mode

- AUTO: Load detection mode

- ON: Power supply switched on continuously

Important! To save energy, the inverter’s Setup menu can be used to define a time for

- Switching the display to Sleep mode

- Switching off the backlight
Press any key to activate the display or the backlight.

General information on setting up the display can be found in the inverter Setup menu
section

4

Connections and
main switch

(12)

(11)

(10)

(9)

(8)

(7)

(6)

(2)

(1)

Fig. 5 Connections and main switch

(3) (4) (5)

No. Function

(1) AC connection for consumers

For connecting AC consumers

(2) Strain relief device

(3) Switch contact connection

For switching external devices

(4) Bushing for battery connecting cable (-) terminal

(5) Bushing for battery connecting cable (+) terminal

(6) Main machine switch

(7) Battery cable connection (-) terminal

(8) Battery cable connection (+) terminal

(9) Data transfer interface

For sending data to other system components

(10) Inverter output jack

Output for connecting inverters when setting up a multi-device operation

(11) Inverter input jack

Input for connecting inverters when setting up a multi-device operation

(12) Display and navigation buttons

5

Before commissioning

General remarks

Utilisation in
accordance with
„intended purpo­se“

WARNING! Operating the equipment incorrectly can cause serious injury and

damage. You should not use the functions described until you have thoroughly
read and understood the following documents:

- These operating instructions

- All the operating instructions for the system components, especially the
safety regulations

CAUTION! Risk of severe damage if the device is connected to the public
mains supply. The device must NOT be connected to the public mains supply.

NOTE! To ensure reliable operation, the battery recharger should only be
connected directly to the battery.

The device is designed solely to generate AC voltage from direct current (DC) drawn
from suitable batteries. Utilisation for any other purpose, or in any other manner, shall be
deemed to be „not in accordance with the intended purpose“. The manufacturer shall not
be liable for any damage resulting from such improper use.

Proper usage also includes complying with all the instructions in the operating instruc­tions.

Setup regulations

Connecting the
battery and
consumers

The machine is tested to “Degree of protection IP20”, meaning:

- Protection against penetration by solid foreign bodies with diameters > 12 mm (.49
in.)

- No protection against water

The specified degree of protection only applies if the device is fitted correctly as descri­bed in the operating instructions.

The device must not be set up and operated outdoors. The built-in
electrical parts must be protected from direct wetting. The device must not be turned
upside down or fitted lying on its side in the box.

The venting duct is a very important safety feature. When choosing the machine locati­on, ensure that the cooling air can enter and exit unhindered through the air ducts.
An all-round clearance of 20 cm (7.87") should be maintained.

The device is designed for the DC voltages indicated on the rating plate. The fuses
needed for the connecting cables are described in the „Technical data“ section. Battery
connecting cables and mains cables for the consumers should be fitted in accordance
with national standards.

NOTE: Inadequately dimensioned electrical installations can lead to serious
damage. The battery connecting cables and their fuses must be rated accordin­gly. The technical data shown on the rating plate shall apply.

6

Fitting and connecting the inverter

General remarks

Fitting the inver­ter / Opening the
connection
compartment

WARNING! An electric shock can be fatal. If the device is connected to the

battery during installation, there is a risk of serious injury and damage. The
connection compartment should only ever be opened by an authorised electri­cal engineer. Only carry out work on the machine when

- the mains switch is in the „O“ position,

- the device is isolated from the battery and the consumers.

The device is designed for all types of mains supply and may be connected by a
licensed electrical installation engineer in accordance with the applicable national and
international standards:

- The phase and PEN conductor are not connected to the box

- The DC input and AC output are electrically isolated

A trained electrician may also set up a TN network in which the inverter is earthed (a
residual-current circuit-breaker may be used) with due regard to the relevant regulations.

Important! The inverter’s inputs and outputs should be fused in accordance with the
applicable national and international standards.

WARNING! Risk of explosion! Do not install the device in areas in which
highly flammable gas mixtures do or could occur. Explosive gas can build up
at floor level when the batteries are charged. Do not install the device in the
vicinity of batteries. Ensure that

- the device is installed at least 50 cm (approx. 18") above floor level

- the area has a plentiful supply of fresh air

NOTE! If fixing to the wall, please note the weight of the charger. The bracket
must be fitted to a suitable wall using the correct dowels and screws.

1

*

2

*

3

* template provided

2

2

6

1

5

3

7

4

1

4

8

7

Fitting the inver­ter / Opening the
connection
compartment

(continued)

3

4

Connecting the
inverter / Starting
up the consu­mers

2

1

Connecting the AC side

1

LN

1

2

1

3

Important! Tighten terminals with no more
than 0.5 Nm torque.

2

Connecting the DC side

2

12 Nm

*

12 Nm

* Size 10

NOTE! Risk of damage if the
battery cable polarity is reversed.
Connect connecting cables with
correct polarity and ensure that
the electrical connection is
correct.

8

Connecting the
inverter / Starting
up the consu­mers

(continued)

Close inverter and finish fitting.

3

1

4

4

1

2

5

2

3

Connect inverter to the battery (single operation)

5

1

2

200 A

Max. length

200A

Min Ah

Min. requirement

Inverter Max. length Min. ø Min Ah

IS 15 2 m (6.56 ft.) 25 mm2 (.039 in2) 300 Ah

IS 15 - 48 V 3 m (9.84 ft.) 25 mm2 (.039 in2) 150 Ah

IS 30 1.5 m (4.9 ft.) 35 mm2 (.054 in2) 500 Ah

IS 30 - 48 V 2 m (6.56 ft.) 25 mm2 (.039 in2) 300 Ah

Min. ø

Recommended configuration

Inverter Max. length Min. ø Min Ah

IS 15 2 m (6.56 ft.) 35 mm2 (.054 in2) 500 Ah

IS 15 - 48 V 3 m (9.84 ft.) 35 mm2 (.054 in2) 250 Ah

IS 30 1,5 m (4.9 ft.) 50 mm2 (.077 in2) 1000 Ah

IS 30 - 48 V 2 m (6.56 ft.) 35 mm2 (.054 in2) 500 Ah

NOTE: Risk of damage if the battery cable polarity is reversed. Protect the
battery’s negative terminal with a DC fuse (200 A). The battery cables used
must be of the specified length and minimum diameter.

9

Connecting the
inverter / Starting
up the consu­mers

(continued)

Start up the consumers

6

31

2

Important! For information on connecting and operating several inverters, see the Multi­device operation section.

10

Operating scheme

Symbols used

Battery symbol

The number indicates the battery charge level

Inverter symbol

Symbol for the inverter

Consumer symbol

Symbol for all consumers

Messages symbol

Symbol for messages that appear during operation

Energy flow arrows

ON mode: Energy flows from the battery via the inverter to the
consumer (continuous operation)

AUTO mode: The device checks whether there is a load
switched on at regular intervals. When a load is detected, the
device switches on with a slight delay until the consumer is
switched off again (load detection mode).

Available modes

Numerical display symbol

Select to display the current power data

Graphical display symbol

Select to display the current operating status

Setting the required operating mode using the navigation buttons:

Stand-by mode STB

In Standby mode, the AC output voltage is switched off. This reduces consump­tion to the display and data communication components.

AUTO load detection mode

In Load detection mode, a test pulse is applied at the output at regular intervals.
When a load is detected, the device switches on until the consumer is switched
off again. This energy-saving mode may cause a slight delay when consumers
are switched on, depending on the settings made in the Setup menu.

Continuous operation ON mode

In Continuous operation mode, there is a continuous AC voltage (230 V) pre­sent at the AC output. Any consumers that are connected are ready for use
immediately.

11

Display

The display has 2 visualisation modes:

Graphical visualisation

Displays the current operating status. Provides a quick over­view of the entire system.

Numerical visualisation

Displays the most important power values (may be customised
in the Setup menu).

12

Menu level

General remarks

Navigation in the
menu

The system component menu levels are used to make settings for the battery, inverter
and consumers. The menu level also contains detailed information about the individual
system components.

Important! The device may have to be restarted when you confirm the settings.

To switch to menu level:

1. Press the OK button

2. Select the required menu using the navigation buttons

Select numerical display

Select graphical display

Retrieve existing messages

Battery menu

Inverter menu

Consumer menu

3. Press the OK button to open the required menu (e.g. Battery menu)

4. Page through the menu

5. Access the setup menu
> Select SETUP and press the OK button

13

Navigation in the
menu

(continued)

6. Use the navigation buttons to select the required option and then press the OK
button to access the submenu

7. Use the navigation buttons to make the required setting in the submenu

Change value

Move to next position

8. Press the OK button to confirm your settings and exit the submenu

To cancel settings: do not press any button for 20 seconds (exits automatically)
or

Hold down for 1 second

9. Exit the Setup menu
> Select EXIT and press the OK button

10. Exit the menu
> Select EXIT and press the OK button

- To quickly exit a submenu or cancel a setting:

Hold down for 1 second

14

Selecting the
display visualisa­tion

To select the display visualisation:

1. Press the OK button to access the menu level

2. Select the required visualisation using the navigation buttons

3. Press the OK button to confirm the selected visualisation

Retrieve mes­sages

When events occur during operation, the device saves them in the form of messages. If
there is a message available, the Messages symbol appears on the display.

To retrieve messages:

1. Press the OK button to access the menu level

2. Use the navigation button to select the Messages symbol and press the OK button
to confirm

15

Battery menu The Battery menu contains information about the battery state and settings.

BAT INFO Explanation

SOC (State Of Charge) State of charge of the battery

Ubat Battery voltage

Ibat Battery current

Ebat+ Energy drawn from the battery

TempB Battery temperature (with battery sensor option only)

> SETUP Press the OK button to access the Setup menu

> EXIT Press the OK button to exit the Battery menu

To access the battery Setup menu:

> Select SETUP and press the OK button

BAT SETUP Explanation

Low voltage off The battery voltage at which drawing energy from the

battery is stopped

Low voltage on The battery voltage at which drawing energy from the battery

is started once more

Voltage rel Nr. Set the voltage level for switching connected relays at

inverter. In the „REL-Nr. mode“ menu, „VOLTAGE LEVEL“
must be activated in the inverter Setup menu. This will be
signaled by the set voltage value

Setting 24 V units: 17 - 32 V (factory setting 23 V)

48 V units: 34 - 64 V (factory setting 46 V)

Nominal temp bat Used to manually enter the battery ambient temperature.

This is only taken into account if there is no battery sensor
connected

Ubat correction DC power correction factor for compensating for DC

conductor resistances and the battery’s internal resistance.
The factor is preset at the factory for the recommended
conductor cross-sections and battery sizes.
(More information about the conductor cross-sections can be
found in the Connecting the inverter sections)
If you are using

- thicker conductor cross-sections, reduce the value
accordingly

- thinner conductor cross-sections, increase the value
accordingly

SOC detection State of charge detection in multi-device operation.

Local Local detection: The SOC is detected locally at the device

(separate battery supply for each inverter)

Central Central detection: SOC is detected by the master device

(common battery supply for all inverters)

> EXIT Press the OK button to exit the Setup menu

16

Inverter menu

The Inverter menu contains the possible settings for the device options that
can be connected, for the display and for single or multi-phase operation.

IS INFO Explanation

Rel-1 Switching state of relay 1

Rel-2 Switching state of relay 2

Mode Synchronisation settings (single / 1 - 3 phase)

Phase Phase set on the inverter

SycNo Synchronisation number in multi-phase operation or for

several devices per phase

> SETUP Press the OK button to access the Setup menu

> EXIT Press the OK button to exit the Battery menu

To access the inverter Setup menu:
> Select SETUP and press the OK button to confirm

IS SETUP Explanation

REL-Nr. mode Used to set the function of the selected relay (if SOURCE

setting is selected in the Rel No. mode menu)
ON Activate relay continuously
OFF Deactivate relay continuously
INFO All information about the system is signalled via the relay
WARNING All system warnings are signalled via the relay
VOLTAGE LEVEL Signalling uses the set voltage value

(„Voltage rel Nr.“ in „Batt Setup“ menu)

LCD mode Sets the time after which the display is switched off

5 sec
30 sec
2 min (factory default)
15 min
ON The display is switched on continuously

LED mode Sets the time after which the display’s backlight is switched

off
OFF Switches off the backlight continuously
5 sec
30 sec (factory default)
2 min
15 min
ON Switches on the backlight continuously

SycNo / Phase Sets the device number and the phase to be used in multi-

phase operation (with SYNC module IS option only)
Phase No. IS # No. Assigns a function to the inverter. Phase 1 - 3, inverter 1 - 5

(per phase).

Syc mode Sets the operating mode (with SYNC module IS option only)

Single Setting for operation with just one inverter (factory default)

1 Phase System Setting for operation with several (2 - 5) inverters on a phase
2 Phase System Setting for operation with at least 2 inverters in a 2-phase

system (split-face)
3 Phase System Setting for operation with at least 3 inverters in a 3-phase AC

system (up to 5 inverters per phase possible)

17

Inverter menu

(continued)

Favourite No. 1 - 4 Displays favourite display values on the numerical display (1

- 4 = order in which they appear on the display)
AC Power Power on the AC side in W
AC S Apparent power in VA
AC Voltage Voltage on the AC side in V
AC kWh Output Energy supplied in kWh
Bat Voltage Battery voltage in V
Bat Current Current flowing from the battery to the inverter in A
Bat Ah Input Energy supplied from the battery in Ah
Bat Temp Battery temperature in °C (only with Battery Sensor option)
SOC Current battery charge in %
AC kWh all Energy supplied by the overall system in multi-device

operation in kWh
AC Power P (2 - 3) Power of the selected phase in multi-phase operation in W
AC Voltage P (2 - 3) Voltage of the selected phase in multi-phase operation in V

Clear news Clears the recorded messages

No Clear Cancels clearing messages
Clear News Confirms that messages should be deleted

Clear counters Resets the power data counters

No Clear Cancels resetting the power data counters
Clear Counters Confirms resetting the power data counters

Set to default Resets to factory default settings

No Default Cancels resetting to factory defaults
Default Confirms resetting to factory defaults

Lock setup Prevents access to the Setup menu

0000 Enter the code using the navigation buttons and press OK to

confirm.

Consumer menu

Important! The lock is cancelled the next time you access

the Setup menu, so it must be reactivated every time you exit

the menu if you wish to use it.

> EXIT Press the OK button to exit the Setup menu

The Consumer menu contains information about the connected consumers
and the working power they require.

LOAD INFO Explanation

Pout Active power in W

Eout Energy supplied to the consumers in Wh

Uout Output voltage in V

Sout Apparent power in VA

EoutN Total energy of the network in multi-device operation

Pout No. Active power of the phase concerned in multi-phase

operation

Uout No. Output voltage of the phase concerned in multi-phase

operation

> SETUP Press the OK button to access the Setup menu

> EXIT Press the OK button to exit the Battery menu

18

Consumer menu

(continued)

To access the Consumer Setup menu:
> Select SETUP and press the OK button

LOAD SETUP Explanation

Load detect profile Pre-defined load detect profiles

Manual Setting as per menu items (factory setting)

- Load on limit (ON)

- Load hysteresis

- Detect pulse

- Detect pause

Eco Energy-saving, slow load detect

ON 15 (5 W)

hysteresis 5

pulse 3 (60 ms)

pause 100 (2 s)
Fast Increased energy consumption, fast load detect

ON 15 (5 W)

hysteresis 5

pulse 3 (60 ms)

pause 15 (300 ms)
Refrigerator Long pulse (5 sec), followed by a 1 min pause (e.g. for

cooling units)

ON 50 (18 W)

hysteresis 10

pulse 250 (5 s)

pause 3000 (60 s)

Load on limit (ON) Sets the load detection sensitivity. Infinitely variable

Can be set from 0 - 300.
Suggested values for SETTING WATTS

15 (factory default) 5

30 10

55 20

80 30

105 40

125 50

210 100

275 200

Load hysteresis Load detection hysteresis for switching off in

Load detection mode

P (W)

ON

OFF

(Load hysteresis)

Load detection (AUTO)

19

Continuous

operation (ON)

t (s)

Consumer menu

(continued)

Detect pulse Number of load detection pulses (n1) in periods

Detect pause Number of load detection pauses (n2) in periods

P (W)

n

n

1

n

1

1

n

2

E.g.: 50 Hz consumers (period 1/50 s = 20 ms)

Detect pulse = 5 -> 5 x 20 ms = 100 ms
Detect pause = 50 -> 50 x 20 ms = 1 s

> EXIT Press the OK button to exit the Setup menu

t (s)

20

External connection

General remarks

Connecting
external devices

Two relays can be used to switch additional external devices via the inverter. This allows
consumers to be switched off automatically, for example, or a signal lamp to light up
when the battery has dropped below the minimum voltage set in the Setup menu.

WARNING! An electric shock can be fatal. If the device is connected to the
battery during installation, there is a risk of serious injury and damage. The
connection compartment should only ever be opened by an authorised electri­cal engineer. Only carry out work on the machine when

- the mains switch is in the „O“ position,

- the device is isolated from the battery and the consumers.

Close the battery and open the inverter

1

1

2

2

2

1

200A

Connect external devices to relays

Relay connection:

3

(3)

(2)

1

2

(1) Root connection
(2) NC contact connection
(3) NO contact connection

Important! Only devices that meet the specifications in the Technical data section may
be connected. Tighten terminals with no more than 0.5 Nm torque.

(1)

21

Connecting
external devices

(continued)

Examples for connecting external devices to the relays

4

L
N

AC

DC

Close inverter and connect battery

L
N

Configuring the
relay

5

1

3

2

Set the switching function for the relay:

1. Access the Inverter Setup menu

6

1

2

200A

2. Set the relay:

REL-Nr. mode Used to set the function of the selected relay (if

SOURCE setting is selected in the Rel No. mode menu)
ON Activate relay continuously
OFF Deactivate relay continuously
INFO All information about the system is signalled via the relay
WARNING All system warnings are signalled via the relay
VOLTAGE LEVEL Signalling uses the set voltage value

(„Voltage rel Nr.“ in „Batt Setup“ menu)

22

Multi-device mode

General remarks

Connecting
inverters to one
another

If greater power is required, up to 5 inverters can be operated in parallel per phase. In
this case, each inverter must be configured individually for its task within the system.

WARNING! Mains voltage can cause fatal injuries. The terminal area must
only be opened by a qualified electrical installation engineer and must be de­energised first.

WARNING! An electric shock can be fatal. If the device is connected to the
battery during installation, there is a risk of serious injury and damage. Only
carry out work on the machine when

- the mains switch is in the „O“ position,

- the device is isolated from the battery and the consumers.

Close the battery and open the inverter

1

1

2

2

2

200A

1

3

23

Connecting
inverters to one
another

(continued)

Connect inverters

Important! Note the input and output sockets when connecting the inverters.

3

*

IS 1 IS 2 IS 3

6

1

2

* Connect first and last inverters together

Close inverters

4

3

4

5

*

Connecting to
single-phase
mains supply

1

2

3

L

NLN

L

N

L

N

N
L

Fig. 6 Wiring diagram for single-phase mains supply, 2 to 5 devices

24

Connecting to
three-phase
mains supply

L

NLN

L

N

N
L

1

L

2

L

3

Fig. 7 Wiring diagram for three-phase AC mains supply (e.g. 1 device per phase)

L

NLN

N
L

1

L

2

L

3

L

N

L

N

L

NLN

N

L

N

L

L

N

Connecting the
battery Local /
Central

Fig. 8 Wiring diagram for three-phase AC mains supply (e.g. 2 devices per phase)

In multi-device mode, the battery may be supplied

- Locally: separate battery supply for each inverter

- Centrally: common battery supply

Min.
ø

Max.

length

200 A

200 A

200 A

Min Ah Min Ah Min Ah

Fig. 9 Connecting cables for detecting the battery supply locally

25

Battery connec­tion local / cen­tral

(continued)

ø

min.

200 A

max. L

3 x
min. Ah

Fig. 10 Connections for central detection of battery supply (recommended)

200 A

200 A

600 A

200 A

3 x ø

max. L

600 A

200 A

200 A

min.

3 x
min. Ah

Fig. 11 Connections for central detection of battery supply (optional)

Min. requirement

Inverter Max. length Min. ø Min Ah

IS 15 2 m (6.56 ft.) 25 mm2 (.039 in2) 300 Ah

IS 15 - 48 V 3 m (9.84 ft.) 25 mm2 (.039 in2) 150 Ah

IS 30 1.5 m (4.9 ft.) 35 mm2 (.054 in2) 500 Ah

IS 30 - 48 V 2 m (6.56 ft.) 25 mm2 (.039 in2) 300 Ah

Recommended configuration

Inverter Max. length Min. ø Min Ah

IS 15 2 m (6.56 ft.) 35 mm2 (.054 in2) 500 Ah

IS 15 - 48 V 3 m (9.84 ft.) 35 mm2 (.054 in2) 250 Ah

IS 30 1.5 m (4.9 ft.) 50 mm2 (.077 in2) 1000 Ah

IS 30 - 48 V 2 m (6.56 ft.) 35 mm2 (.054 in2) 500 Ah

26

Configuring the
devices

NOTE: Risk of damage from consumers that are switched on while the inver-

ters are being configured. Before configuring the inverters, make sure that

- the consumers are disconnected

- all inverters are switched off

- the described sequence is followed exactly

1. Switch on the inverter to be configured

Access the Setup menu for the individual inverter

2. Select SycNo / Phase menu, then set the device number and the phase to be used
to synchronise the devices

SycNo / Phase Sets the device number and the phase to be used in

multi-device operation

Phase No. IS # No. Assigns a function to the inverter. Phase 1 - 3,

inverter 1 - 5 (per phase).

3. Select the Syc mode menu and set the device to suit the operating mode

Syc mode Set the operating mode

1 Phase System Setting for operation with several (2 - 5)

inverters on a phase

2 Phase System Setting for operation with at least 2 inverters in a 2-

phase system (split-face)

3 Phase System Setting for operation with at least 3 inverters in a 3-

phase AC system (up to 5 inverters per phase possible)

4. In the battery Setup menu, set the type of connection for the battery supply for SOC
detection.

SOC detection State of charge detection in multi-device operation.

Local Local detection: The SOC is detected locally at the

device (separate battery supply for each inverter)

Central Central detection: SOC is detected by the master device

(common battery supply for all inverters)

5. Switch off the inverter

6. Repeat the procedure until all the inverters in the system have been configured

7. Once all the inverters are configured, switch on all the inverters

8. Start up the consumers

27

Troubleshooting

General remarks

Service codes
displayed

WARNING! An electric shock can be fatal. Before opening up the machine

- Move the mains switch to the „O“ position

- Disconnect the device from the battery

- Put up an easy-to-understand warning sign to stop anybody inadvertently
switching it back on again

- Using a suitable measuring instrument, check to make sure that electri­cally charged components (e.g. capacitors) have been discharged

CAUTION! Inadequate PE conductor connections can cause serious injury
and damage. The housing screws provide a suitable PE conductor connection
for earthing (grounding) the housing and must NOT be replaced by any other
screws which do not provide a reliable PE conductor connection.

If an error message that is not described here appears on the displays, then the fault is
one that can only be put right by a service technician. Make a note of the error message
shown in the display, and of the serial number and configuration of the device, and get in
touch with our after-sales service, giving them a detailed description of the error.

Error number 101

Reset

Cause: The device has an internal error which has caused the device to

reset itself

Remedy: The device will rectify the error itself and automatically restart

Error number 112

System busy

Cause: Error while saving the settings
Remedy: Repeat the setting process

Error number 120 – 123

Over temp

Cause: Temperature on the DC circuit board is too high
Remedy: The device will restart automatically after it has cooled down

Clean air outlet if necessary

Error number 131

Over temp

Cause: Temperature of the AC circuit boards is too high
Remedy: The device will restart automatically after it has cooled down

Clean air outlet if necessary

Error number 132

AC detected

Cause: There is a voltage at the AC output
Remedy: Disconnect the AC output from the mains supply or other voltage

source

Error number 133

Internal err

Cause: Device error
Remedy: Contact After-Sales Service

28

Service codes
displayed

(continued)

Error number 191

Display reset

Cause: The display has an internal error which has caused the display to

reset itself

Remedy: The device will rectify the error itself and the display automatically

restart

Error number 211

Low battery

Cause: Battery voltage is below the set minimum voltage threshold
Remedy: Charge the battery or check which type of battery is connected

Error number 212

High battery

Cause: Battery voltage is above the set maximum voltage threshold
Remedy: Switch off the external charge source or check what type of battery

is connected

Error number 213

Hot battery

Cause: Battery temperature is too high
Remedy: Stop charging the battery and switch off all connected consumers

Error number 231

AC detected

Cause: There is a voltage at the AC output
Remedy: Disconnect the AC output from the mains supply or other voltage

source

Error number 232

Over current

Cause: Too many consumers switched on
Remedy: Switch off any consumers that are not required

Error number 301

Internal err

Cause: Device error
Remedy: Contact After-Sales Service

Error number 302

Hardware

Cause: Wrong device configuration
Remedy: Contact After-Sales Service

Error number 304

Internal err

Cause: Device error
Remedy: Contact After-Sales Service

Error number 312

Internal err

Cause: Device error
Remedy: Contact After-Sales Service

Error number 313

Internal err

Cause: Device error
Remedy: Contact After-Sales Service

Error number 314

System busy

Cause: Error while saving the settings
Remedy: Repeat the setting process

29

Service codes
displayed

(continued)

Error number 320 – 323

Internal err

Cause: Device error
Remedy: Contact After-Sales Service

Error number 331

Internal err

Cause: Device error
Remedy: Contact After-Sales Service

Error number 333

Over current

Cause: Short-circuit at AC output
Remedy: Disconnect consumer and remedy short-circuit

Error number 334

Internal err

Cause: Device error
Remedy: Contact After-Sales Service

Error number 335

Internal err

Cause: Device error
Remedy: Contact After-Sales Service

Error number 336

Internal err

Cause: Device error
Remedy: Contact After-Sales Service

Error number 391

Display lost

Cause: Communication with display not possible
Remedy: Contact After-Sales Service

Error number 392

Display fault

Cause: Display error
Remedy: Switch device off and on again

Error number 393

Old software

Cause: The AC processor software is not compatible with the new display

processor firmware

Remedy: Update the software (After-Sales Service)

Error number 401

Slave fault

Cause: In multi-device operation, the master device detected an error in one

of the slave devices

Remedy: Rectify the error on the slave device

Error number 402

Sync lost

Cause: Synchronisation signal not received from the master device several

times

Remedy: Check the communication connection

Error number 403

Sync lost

Cause: A reset was triggered on the parallel bus
Remedy: The device will rectify the error automatically

30

Service codes
displayed

(continued)

Error number 404

No slave

Cause: Error in communication setup in multi-device operation.
Remedy: Check the Setup settings and communication links and correct if

necessary

Error number 405

Internal err

Cause: Device error
Remedy: Contact After-Sales Service

Error number 470

Twin slave

Cause: Two devices have the same device number
Remedy: Check the device settings in the Setup menu and correct if necessa-

ry

Error number 471

Wrong slave

Cause: Wrong phase settings. Devices were identified with phase 2 or 3

settings, but the system is only configured for single-phase operation

Remedy: Check the Setup settings for the individual devices and correct if

necessary

Error number 472

Wrong slave

Cause: Wrong phase settings. Devices were identified with phase 3 settings,

but the system is only configured for 2-phase operation

Remedy: Check the Setup settings for the individual devices and correct if

necessary

Error number 473

No 2-1 found

Cause: Wrong phase settings. Devices with phase 2 settings were not

identified, but the system is only configured for 2 or 3-phase operati­on

Remedy: Check the Setup settings for the individual devices and correct if

necessary

Error number 474

No 3-1 found

Cause: Wrong phase settings. No device with the phase 3 master setting

was identified, but the system is only configured for 3-phase operati­on

Remedy: Check the Setup settings for the individual devices and correct if

necessary

Error number 591

Com error

Cause: The transmit buffer of the CAN interface is full
Remedy: The device will rectify the error automatically

Error number 592

Com error

Cause: Communication at the CAN interface is not possible
Remedy: Contact After-Sales Service

31

Service, maintenance and disposal

General

On a regular
basis or as
required

The inverter only requires a minimum of service and maintenance under normal opera­ting conditions. However, several items must be followed in order for the inverter to
remain operational for years to come.

WARNING! An electrical shock can be fatal. Before opening the unit

- Set power switch to - O -

- Disconnect unit from battery

- Attach a clear warning sign against turning the unit on

- Use a suitable measuring tool to ensure that electrically charged compon­ents (e.g. condensers) are discharged

- Check battery and power cable as well as all connections for damage

- Ensure that there is a 20 cm (7.87 in.) clearance all around the unit to allow cool air
to flow freely and hot air to dissipate

NOTE! Air intake and exhaust openings on the unit should not be blocked or
even partially covered.

Clean air filter

1

6x

2

1

2

7

3

1

2

4

3

4

6x

1

32

Technical data

FRONIUS IS 15 /
IS 15 - 48 V

IS 15 IS 15 - 48 V

DC input:

Rated voltage 24 V 48 V

Voltage range during operation 19 - 30 V 38 - 60 V

Max. input voltage 32 V 64 V

Nominal current 50 A 25 A

Max. current 60 A 30 A

AC output (related to DC nominal voltage):

Nominal voltage (+/- 10%) 230 V 230 V

Nominal output 1200 VA 1200 VA

Nominal current 5 A 5 A

Max. current 10 A 10 A

Output frequency 50 / 60 Hz * 50 / 60 Hz *

Load detection from 3 W 3 W

Permitted cos phi of the consumers 0.3 - 1 0.3 - 1

Distortion factor 3.0 % 3.0 %

Relay switching contacts:
AC 250 V / 12 A 250 V / 12 A
DC 30 V / 8 A 30 V / 8 A

60 V / 1.5 A 60 V / 1.5 A

General data:

Max. efficiency 93 % 93 %

Power consumption in continuous operation 16 W 16 W

Power consumption in load detection mode 6 W 6 W

Power consumption in standby mode 4 W 4 W

Power consumption in OFF mode 0 W 0 W

Temperature range - 20°C to 50°C** -20°C to 50°C**

-15.56°C to 50.00°C** -15.56°C to 50.00°C**

Dimensions l x w x h 384 x 267 x 181 mm 384 x 267 x 181 mm

15.1 x 10.5 x 7.1 in. 15.1 x 10.5 x 7.1 in.

Weight 8 kg 8 kg

17.64 lb. 17.64 lb.

Protection IP 20 IP 20

Marks of conformity CE CE

* Depending on the model
** Nominal output is no longer possible

33

FRONIUS IS 30 /
IS 30 - 48 V

IS 30 IS 30 - 48 V

DC input:

Rated voltage 24 V 48 V

Voltage range during operation 19 - 30 V 38 - 60 V

Max. input voltage 32 V 64 V

Nominal current 100 A 50 A

Max. current 120 A 60 A

AC output (related to DC nominal voltage):

Nominal voltage (+/- 10%) 230 V 230 V

Nominal output 2200 VA 2200 VA

Nominal current 10 A 10 A

Max. current 20 A 20 A

Output frequency 50 / 60 Hz * 50 / 60 Hz *

Load detection from 3 W 3 W

Permitted cos phi of the consumers 0.3 - 1 0.3 - 1

Distortion factor 3.0 % 3.0 %

Relay switching contacts:
AC 250 V / 12 A 250 V / 12 A
DC 30 V / 8 A 30 V / 8 A

60 V / 1.5 A 60 V / 1.5 A

General data:

Max. efficiency 93 % 93 %

Power consumption in continuous operation 16 W 16 W

Power consumption in load detection mode 6 W 6 W

Power consumption in standby mode 4 W 4 W

Power consumption in OFF mode 0 W 0 W

Temperature range - 20°C to 50°C** -20°C to 50°C**

-15.56°C to 50.00°C** -15.56°C to 50.00°C**

Dimensions l x w x h 384 x 267 x 181 mm 384 x 267 x 181 mm

15.1 x 10.5 x 7.1 in. 15.1 x 10.5 x 7.1 in.

Weight 8 kg 8 kg

17.64 lb. 17.64 lb.

Protection IP 20 IP 20

Marks of conformity CE CE

* Depending on the model
** Nominal output is no longer possible

34

Fronius Worldwide - www.fronius.com/addresses

Fronius International GmbH

4600 Wels-Thalheim, Günter-Fronius-Straße 1, Austria
E-Mail: [e-mail]
http://www.fronius.com

Under http://www.fronius.com/addresses you will find all addresses of our sales branches and partner firms!

Fronius USA LLC Solar Electronics Division

USAA

10421 Citation Drive, Suite 1100, Brighton, MI 48116
E-Mail: [e-mail]
http://www.fronius-usa.com

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