Delta solivia 2.5 Operation And Installation Manual

Operation and installation manual for
SOLIVIA 2.5 AP G3

2.5

AP

ENGLISH

1Operation and installation manual SOLIVIA 2.5 AP G3

The manual is subject to change.

Please check our website at www.solar-inverter.com

for the most up-to-date manual version.

© Copyright – Delta Energy Systems (Germany) GmbH - All rights reserved.
This manual accompanies our equipment for use by the end users.
The technical instructions and illustrations contained in this manual are to be treated as condential and no part may be reprodu­ced without the prior written permission of Delta Energy Systems Service engineers and end users may not divulge the information
contained herein or use this manual for purposes other than those strictly connected with correct use of the equipment.
All information and specications are subject to change without notice.

2 Operation and installation manual SOLIVIA 2.5 AP G3

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3Operation and installation manual SOLIVIA 2.5 AP G3

Table of Contents

1 Scope of delivery 4

2 General warnings / Notes on safety 4

3 Introduction 5

4 System 5

4.1 Data evaluation and communication 5

4.2 Technical structure of the solar inverter 6

4.3 Equipment overview 7

5 Installation 8

6 Installation of equipment 8

6.1 Installation location 8

6.2 Minimum requirements 8

6.3 Maintenance 9

6.4 Installation 9

6.5 Ambient temperature 10

6.6 Grid connection 10

6.7 Connection of PV modules 10

6.7.1 Output power over PV voltage 12

6.7.2 Output power over AC voltage 12

6.7.3 Efficiency 13

6.8 Interface connection RS485 (EIA485) 13

6.9 Electrical connection and operational start-up 15

6.10 Setup / settings 16

6.11 LED operation and fault display 17

7 Operating concept 18

7.1 The display 18

7.2 Navigation in the display 18

7.3 Main menu 18

7.3.1 Submenu N (Now) 20

7.3.2 Submenu D (Day) 21

7.3.3 Submenu W (Week) 22

7.3.4 Submenu M (Month) 22

7.3.5 Submenu Y (Year) 22

7.3.6 Submenu T (Total) 23

7.3.7 Submenu S (Setup) 24

7.3.7.1 Submenu S: Solar ISO / GND 25

7.3.7.2 Submenu S: Country settings 25

7.3.7.3 Submenu S: Firmware 26

8 Diagnostics and data evaluation 26

8.1 Malfunction rectification 26

8.2 Display messages 27

9 Technical data 28

10 Appendix 30

10.1 Connection examples 30

10.2 Overview of connection diagrams 32

11 Glossary 34

12 Certificates 140

4 Operation and installation manual SOLIVIA 2.5 AP G3

1 Scope of delivery

• SOLAR INVERTER SOLIVIA 2.5 AP G3

• Mounting plate

• Operation and installation manual

• AC connector

2 General warnings / Notes on safety

Congratulations on the purchase of the SOLAR INVERTER SOLIVIA 2.5 AP G3 .

These directions will help you become familiar with this product.

Please observe the safety regulations (see § 9) and technical connection conditions for local utility
company). Careful handling of your product will contribute to its service life durability and reliability.
These are essential prerequisites for maximum yield from your product.

Please observe the following notes on safety:

• During operation of electrical devices, certain parts are under dangerous voltage.

• Inappropriate handling can lead to physical injury and material damage!

• Adhere to the installation regulations.

• Installation and operational start-up work may be implemented only through qualied electrical
experts.

• Repair work on the device should be carried out by the manufacturer only.

• Please observe all points in the operating and installation manual!

• Isolate the device from the grid and the PV modules before carrying out any work on it.

• As a result of very high temperatures, the device surface can become hot.

• Sufcient cooling is necessary.

• As the solar inverter is heavy (weight > 18 kg), it should be lifted by at least two persons.

• Remember that the unit has a high leakage current. The PE conductor MUST be connected prior
to commencing operation.

To avoid risk of electrical shock, do not open the solar inverter. The inverter
contains no user-serviceable parts. Opening the cover will invalidate the
warranty.

Dangerous voltage is present for 5 minutes after disconnecting all sources
of power.

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5Operation and installation manual SOLIVIA 2.5 AP G3

3 Introduction

With this device you have acquired a solar inverter for connection of photovoltaic systems to the
grid. This solar inverter is characterized by its advanced housing design and state-of-the-art high­frequency technology, which enable the highest levels of efciency.

The solar inverter includes monitoring units, such as anti-islanding protection. The function of the
anti-islanding protection (automatic isolation point for in-plant generation systems) stipulates com­pliance with all specications required (see § 12).

The inverter is usable indoors and outdoors (IP65).

In the following technical description, the precise functions are explained to the installer, as well
as the user, which are required for the installation, operational start-up and handling of the solar
inverter.

4 System

The solar inverter converts direct current from the solar cells into alternating current. This enables
you to feed your self-produced solar energy into the public grid.

Thanks to efcient MPP tracking, maximum capacity utilization of the solar energy plant is ensured
even in the case of cloudy sky conditions.

The string concept means that PV modules are always connected in series (in a string) and/or that
strings with the same voltage are connected in parallel to the solar inverter with the aim of signi­cantly reducing the photovoltaic system’s cabling requirements.

The fact that the modules are connected in strings also means that the photovoltaic system can be
perfectly matched to the solar inverter’s input voltage range.

4.1 Data evaluation and communication

The integrated data display, processing and communication of the device enables easy operation of
the solar inverter. Monitoring of the operational status and signaling of operational failures are ca­pable of being called up over the device display. The data interface enables the downloading of data
which can be evaluated with a PC system and guarantees continuous recording of operating data.

The best way of accessing this functionality is via the available accessories; comprehensive and
seamless solar inverter monitoring is ensured.

The data read-out over the integrated interface and the display is possible only in solar operation.

6 Operation and installation manual SOLIVIA 2.5 AP G3

4.2 Technical structure of the solar inverter

A galvanical isolation of the solar inverter from the grid is achieved through a DC/AC converter with
an integrated high-frequency transformer. The photovoltaic voltage is adjusted so that the maximum
power output of the PV modules is also achieved with varying solar irradiation levels and tempera­tures (MPP-Tracking).

The MPP range of the solar inverter is between 150 V and 450 V. This facilitates the use of PV
modules by a variety of manufacturers. Measures must be taken to ensure that the maximum open­circuit voltage of 540 VDC (for Korea limited to 500 V only) is never exceeded. Please note that
the maximum open-circuit voltage will occur at the lowest temperatures anticipated. You will  nd
more detailed information about temperature dependency in the data sheet of the PV modules. The
device’s power consumption is kept to a minimum.

The high-quality aluminum casing corresponds to protection class IP65 (water-jet-proof and dust­proof) and is protected against weathering processes by surface re nement. The cooling charac­teristic pro le is designed so that operation of the inverter is possible with ambient temperatures
from -25°C to +70°C.

A cooling characteristic pro le is used for the removal of the power dissipation caused through the
voltage conversion. An internal temperature control protects the device against excessive tem­peratures in the interior of the solar inverter. In case of high ambient temperatures, the maximum
transferable power is limited.

The solar inverter is controlled by microcontrollers, which also implement interface communication
and the monitoring of values and messages on the display.

Two independent and redundant microcontrollers control the monitoring of the grid, which is consis­tent with the feed-in directives of your local utility company. This enables an installation of the solar
inverter in the in-house electrical grid.

Operator protection requirements are met by electrically isolating the grid from the PV module. The
electrical isolation between the grid and the PV module is equivalent to basic insulation. Maximum
operator protection is ensured by reinforced isolation between the grid, PV modules and accessible
interfaces (display, RS485 interface). Relevant standards concerning electromagnetic compatibility
(EMC) and safety are ful lled.

The solar inverter is functional in on-grid operation exclusively. An automated isolation point, which
is approved by a certi cation agency, guarantees secure disconnection in case of circuit isolation or
interruptions in power supply and avoids isolated operation.

The disconnection equipment allows for automatic isolation for in-plant generation systems of nomi­nal power ≤ 4.6 kVA, with single-phase parallel feed-in through the solar inverter into the grid.

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7Operation and installation manual SOLIVIA 2.5 AP G3

4.3 Equipment overview

(1) Connections for PV modules
(2) Grid connection
(3) Interface connection RS485 (EIA485)
(4) Display for status messages and keypad for operation
(5) Light-emitting diodes for operational status display

(1)

(4)

(5)

(2)

(3)

8 Operation and installation manual SOLIVIA 2.5 AP G3

5 Installation

Installation and commissioning must only be carried out by qualied electrical experts.

The recommended local and national safety regulations and the technical interface conditions (TAB

2000), should be complied with.

To carry out an energy measurement, a meter must be attached between the grid feed-in point and
the solar inverter (in accordance with all local and national safety regulations).

By means of the integrated anti-islanding protection, the function of the recommended section
switch is fullled in accordance with all local and national safety regulations.

For details, please refer to § 9.

Caution: The secondary short-circuit current rating is increased at the transfer connection point to
the public electricity supply system by the nominal current of the connected solar inverter.

6 Installation of equipment

6.1 Installation location

• Install the device on a non-ammable support base.

• Avoid installation on resonating bodies (light construction walls etc.).

• Installation is possible both indoors and in protected outdoor areas.

• An increased ambient temperature can reduce the efciency of the PV system.

• Noise generation is possible (avoid installation in residential areas).

• Ensure legibility of the LEDs and the display (check read-off angle and installation height).

• Although the unit is tted with UV resistant components, direct exposure to sunlight should be
avoided.

• Despite having an IP65 enclosure and being certied in accordance with soiling category III, the
unit must not be allowed to become heavily soiled.

• Dusty conditions can impair the unit’s performance.

6.2 Minimum requirements

• Free convection around the solar inverter must not be impaired.

• For proper air circulation to dissipate heat, allow a clearance of approx. 10 cm to the side and
approx. 50 cm above and below the unit.

• The grid impedance requirement at the supply terminal is to be observed (cable length, cable
cross-section).

• The recommended installation position is to be adhered to (vertical).

• Unused DC connectors and interfaces must be sealed airtight with sealing plugs to ensure
protection class IP65 for the whole system (inverter & cables).

50 cm

10 cm

50 cm

10 cm

Wall

Wall

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9Operation and installation manual SOLIVIA 2.5 AP G3

319.5

150

320

200

6.5

12

Ø

12.5

90

38

12

410 ± 0.5

6.3 Maintenance

Make sure that the device remains uncovered while in operation. To avoid the casing of the solar
inverter becoming soiled, it should be cleaned periodically.
User serviceable parts are not contained in the device. Under no circumstances should the solar
inverter be opened!

6.4 Installation

You should utilize the delivered mounting plate for problem-free installation of the solar inverter.
Installation to the wall should be implemented with the proper screws. Mount the wall bracket so that
the solar inverter only has to be simply attached. After that, the device is to be bolted on securely.

Assembly instructions

1. Mount the mounting plate with appropriate screws (max. Ø 6mm) into at least four of
the eight holes to x the wall bracket in place. You can employ the mounting plate as a
template for marking the positions of the boreholes.

2. As the solar inverter weighs 21.5 kg, it should be lifted out of the transport crate by at
least two persons.

3. Place the solar inverter onto the mounting plate with at least two persons.

4. Fasten the supplied mounting nuts and washers on the threaded bolt intended for secu­ ring the device.

5. Check that the solar inverter is securely sealed.

Mounting
plate

Locking screw

Locking screw

10 Operation and installation manual SOLIVIA 2.5 AP G3

6.5 Ambient temperature

The solar inverter can be operated in an ambient temperature between -25°C to +70°C.

The device should be installed in a well-ventilated, cool and dry location.

6.6 Grid connection

The grid (AC output) is connected over a Wieland RST25i3S AC connector. You can nd the cor­rect allocation on the screw-type terminal connection of the connector. The solar inverter must be
connected to the grid over a three-core line (L, N, PE). The connected AC line must be switched
potential-free before the disconnection or the insertion of the AC connector.

The connection to the Wieland AC connector must be made with a exible line and a conductor
cross section of min. 2.5 mm² to max. 4.0 mm².

An automatic circuit breaker is to be provided in the line L upstream of every device, with a nominal
current of 25 A and tripping characteristic type B or C (please refer to your local country installation
requirements and regulations for correct tripping characteristic type). In addition, attention is to be
paid to the selectivity of the fuse unit attached upstream of the automatic circuit breaker.

The solar inverter must be grounded via the AC connector’s PE conductor. To do this, connect the
PE conductor to the designated terminal. If you wish to integrate more than one inverter into the
installation, please proceed as illustrated in the drawings in the appendix.

Please note the cable length and the cable cross-section, due to the risk of undesirable temperature
rise and power losses.

The AC connector is protected from unintentional disconnection by a clip mechanism which can be
released with a screwdriver.

6.7 Connection of PV modules

Before the photovoltaic system is connected, the polarity of the PV voltage at the Multi-Contact con­nectors must be checked to ensure that it is correct.

The connection of the PV module is implemented using Multi-Contact MC4 connectors, where the
DC negative pole is located on the connector upper row and the DC positive pole on the connector
lower row. The connectors are coded to prevent you from accidentally plugging them into the wrong
terminal.

Please ensure the following at all times:

• That there is never any risk of anyone coming into contact with the solar inverter connection
terminals, due to the risk of dangerous voltages across them.

• That under no circumstances are the PV modules to be disconnected from the solar inverter under
load. If a disconnection should be necessary, rst switch the grid off so that the solar inverter
cannot absorb any further power. Next, open the upstream DC disconnector.

The maximum input voltage of the solar inverter is 540 V (for Korea limited to 500 V only). The
maximum current load of each individual Multi-Contact MC4 connector is 18 A.

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11Operation and installation manual SOLIVIA 2.5 AP G3

The solar inverter has an insulation and grounding monitoring on the DC side. The options can be
congured in the Setup menu “S -> Solar ISO / GND” (see § 7.3.7.1).

The insulation monitoring has two modes:

• ISO-ON-Error (the solar inverter is disconnected from the grid in the event of an insulation
fault)

• ISO-ON-Warning (the solar inverter indicates the fault but is not disconnected from the grid).
Deltas solar inverters are factory-set to ISO-ON-Warning mode on delivery.

The grounding monitoring has two modes:

• PV+ grounding (grounding monitoring of the positive pole of the PV generator)

• PV- grounding (grounding monitoring of the negative pole of the PV generator).
In these modes the solar inverter remains in feed-in operation and will not be disconnected from the
grid in case of a fault. The error message “PV+ grounding fault” or “PV- grounding fault” will appear
on the display.

If you need to connect the positive or negative pole of the PV system to meet requirements set
out by the module manufacturer, you can do this. Earth continuity must be implemented close to
the inverter. We suggest using Deltas grounding kit “Grounding Set A Solar” (EOE99000275). The
grounding connection is monitored and should be congured in the Setup menu (see above).

Alternatively, it is possible to turn off the insulation- and grounding monitoring:

• ISO / GND OFF.

CABLE
COUPLER
POLARITY

WIRE SIZE

2.5 MM

2

(AWG 14)

WIRE SIZE

4.0 MM2 - 6.0 MM²
(AWG 12-10)

FEMALE
CABLE
COUPLER

MALE CABLE
COUPLER

MULTI-CONTACT
ORDER NUMBER

Plus
coupler

• •

32.0010P0001-UR

32.0012P0001-UR

Minus
coupler

• •

32.0011P0001-UR

32.0013P0001-UR

Plus
coupler

• •

32.0014P0001-UR

32.0016P0001-UR

Minus
coupler

• •

32.0015P0001-UR

32.0017P0001-UR

Required cable coupler types for DC cable connection to inverter:

12 Operation and installation manual SOLIVIA 2.5 AP G3

6.7.1 Output power over PV voltage

150 VDC

200 VDC 250 VDC

300 VDC

350 VDC 400 VDC 450 VDC

500

2

7

0

0

W

2

900

W

3

W

W

W

W

W

W

W

210 VAC 230 VAC 250 VAC

270 VAC

6.7.2 Output power over AC voltage

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13Operation and installation manual SOLIVIA 2.5 AP G3

6.8 Interface connection RS485 (EIA485)

The interfaces not used must always be closed off. In case of utilization of an interface, only the
counterpart tting on the interface connector is to be employed.

Mating connector supplier HARTING Deutschland GmbH & Co. KG (P.O. 2451, 32381 Minden;
Germany; www.harting.com).

Order designation: 09 45 145 1510, Cable Manager Blue IP67 Push-Pull Data Plug
09 45 145 1500, Cable Manager White IP67 Push-Pull Data Plug

-

~

-

~

-

~

-

~

220 V / 230 V
House connection line

RS485 (EIA485) - Connection

Datalogger

RS485 (EIA485)
terminating resistor

6.7.3 Efciency

The best efciency of the solar inverter is obtained at input voltages >250 V.

84 %

86 %

88 %

90 %

92 %

94 %

96 %

0 W

400 W

800 W

1200 W

1600 W

2000 W

2400 W

2500 W @ 150 V

2500 W @ 250 V

2500 W @ 350 V

2500 W @ 450 V

14 Operation and installation manual SOLIVIA 2.5 AP G3

8

1

Pin

1 Reserved
2 Reserved
3 Reserved
4 GND (RS485)
5 Reserved
6 RX_B (RS485)
7 TX_A (RS485)
8 Reserved

Top View

Connector pin assignment RS485 (EIA485)

+5V

Reserved

Reserved

0R

0R

TX_A

RX_B

GND

Pin 7

Pin 6

100 ... 150
Ohm, 0,25W

When several devices are connected in series and the total length of the data line measures 2 m or
more, the following option is available for terminating the RS485 (EIA485) interface:

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15Operation and installation manual SOLIVIA 2.5 AP G3

6.9 Electrical connection and operational start-up

The electrical connection is utilized on this solar inverter using the connector contacts which are
attached to the casing. In no case must the device be opened!

Power
controller

Anti­islanding
protection

Communi­cation

Operating- and system control

MPP­Tracker

-

-

Booster

-

-

Isolation

DC-Bus

­~

Solar inverter

DC

DC

DC

DC

String A

String B

String C

String D

AC

Public
grid

16 Operation and installation manual SOLIVIA 2.5 AP G3

In order to connect the device electrically, the following procedures must be followed:

1. DC connection: First, connect the PV module strings to the DC disconnector (not included in
the scope of delivery).

2. Connect the DC disconnector to the solar inverter (ensure correct polarity).

3. AC connection: Please install the Wieland AC mating connector to the AC output cable and then
put the AC connector to the solar inverter. Please make sure, that the sleeve nut is properly
 xed and tighten.

4. Before switching on the power, check all feeders and connections one last time.

5. Close the DC disconnector.

6. Close the circuit breaker on the AC output side.

7. In case of suf cient PV voltage (UPV > 150 V), the device now goes into the start-up mode.

8. In case of a new installation the time and date have to be set in sub-menu S (Setup) (see § 7.3.7).

All unoccupied connectors and interfaces must be sealed using the provided sealing
plugs.

6.10 Setup / settings

The default display language for solar inverters leaving the Delta factory is set to English.

After connecting to correct DC voltage and running through self-test, you will be asked to specify
the network ID and to select the desired country (see § 7.3.7.2) (countries available: Australia,
Australia PL

1)

, China, India, Korea and Taiwan).

The selection has to be con rmed another time by the user. Once con rmed, the network ID and
the country selection are stored to the controller memory – and the solar inverter is ready for
operation.

Please note that the enter keys on the display are locked, if there is no input entry within 5
minutes. To unlock the enter keys, you need to switch off the DC voltage and then switch it on
again.

1) In certain states in Australia, power limitation is required.

• With power limitation, the output (AC) power of SOLIVIA 2.5 AP G3 will be as followed :
Max power: 2490 W
Nominal power: 2350 W

• To activate power limitation, please select dedicated country “Australia PL” (Installed settings are password

protected):
Select unit ID = [1] & press <ENTER> key
Select country = [Australia PL] & press <ENTER> key
Con rm country selection by pressing <ENTER> key

• The following label that is enclosed in the box of the inverter MUST be sticked next to the model label:

• To check if power limitation has been activated, please go to the menu S (Setup) and press the „UP“ or
„DOWN“ buttons to  nd the following display message:

at maximal output power of: 2.49kW

For Australia PL
This product has been power limited

S -> Country Set
AU L

Down

Up

AUstralia Limitation

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17Operation and installation manual SOLIVIA 2.5 AP G3

Country selection

Increase network ID Decrease network ID

Down *

Up *

Enter network ID

ENTER *

ESC *

Select country

Next country Country before

Down *

Up *

ENTER *

Normal mode

* Timeout if no key is pressed (within 5 minutes)

Operation (A)

Earth Fault (B)

Failure (C)

• LED (A), green: „Operation“ displays the
operational state.

• LED (B), red: „Earth Fault“ displays an insula­ tion resistance fault or PV grounding (GND)
fault on the DC side.

• LED (C), yellow: „Failure“ displays existing
faults internally or externally and whether the
grid feed-in operation has been interrupted.

6.11 LED operation and fault display

Three light-emitting diodes (LEDs), which display the operational state of the solar inverter, are
attached on the front:

Please note, that once the country has been selected and con rmed, it is only possible to change
the country by following the steps as listed below:

1. Please click ESC + for few seconds to get the key information.

2. Provide the key code to the Solar Support Team at [e-mail] to get the PIN
code (valid for one use only!).

3. Once you get the PIN code, you need to press ESC + .

4. Then, you will be asked to insert the PIN code and to con rm it twice.

5. After con rmation, you will then be able to select the desired country.

Note: These steps must be executed without interruption. Otherwise, you will stay in the country
selection mode.

LED STATUS OPERATIONAL STATE EXPLANATION

green: <off>
red: <off>
yellow: <off>

Night disconnection.

The input voltage (UPV) is lower than 100 V.
The solar inverter is not feeding power to the grid.

green: <on>
red: <on>
yellow: <on>

Initialization.

Input voltages:
UPV: 100 V to 150 V
(self test ongoing).

green: < ashes>
red: <off>
yellow: <off>

Input- and grid moni­toring.

Starting conditions are tested.

18 Operation and installation manual SOLIVIA 2.5 AP G3

7 Operating concept

7.1 The display

The display on the device indicates varied information. The enter keys are used for the adjustment
of the device and for the retrieval of information. The indicated data can deviate with a tolerance of
up to 5%.

ESC

(A) (B) (C) (D)

7.2 Navigation in the display

Lighting of the display
After pressing the ENTER key in automatic operation, the display lighting is switched on. If no key
is pressed within 30 seconds, the display lighting automatically goes out. The setup menu enables
selection between continuous or automatic lighting. Through pressing the ENTER key, the display
lighting is switched on again.

Key (A), ESC: To switch from the menu
items to the main menu and
to exit each sub-menu.
Key (B) and (C): For scrolling in the individual
menu items and/or carrying
out adjustments in the setup
menu.
Key (D), ENTER: ENTER key for changing into
the menu levels and for input
acknowledgement in the
setup menu.

7.3 Main menu

The main menu consists of 7 menu items which are subdivided into submenus:

• Menu N (Now)

• Menu D (Day)

• Menu W (Week)

• Menu M (Month)

• Menu Y (Year)

• Menu T (Total)

• Menu S (Setup)

Handling of the menu items:
You can scroll the main menu by activating the selector keys

.
Press the ENTER key to select the submenus. In order to exit the menus again, activate the ESC
key.

LED STATUS OPERATIONAL STATE EXPLANATION

green: <on>
red: <off>
yellow: <off>

Feed-in operation.

Normal operational state:
UPV: 150 V to 450 V.

green: <off>
red: <on/off>
yellow: <on/off>

Equipment fault.

Internal or external fault
(interrupted feed).
See also display messages!

green: <off>
red: <on/off>
yellow: <on>

General error
condition.

Solar inverter is not connected to the grid.
No power is delivered.
See also display messages!

green: <on/off>
red: <on/off>
yellow: <ashes>

Warning message.

You can carry on using the solar inverter.
See also display messages!

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19Operation and installation manual SOLIVIA 2.5 AP G3

User menu

Menu N - Now (act data)

Menu D - Day statistic

Menu W - Week statistic

Menu M - Month statistic

Menu Y - Year statistic

Menu T - Total statistic

Menu S - Setup inverter

Down

Down

Down

Down

Down

Down

Up

Up

Up

Up

Up

Up

Down to 2

1

Up to 1

2

Submenu N - Now

Submenu D - Day

Submenu W - Week

Submenu M - Month

Submenu Y - Year

Submenu T - Total

Submenu S - Setup

ESC

ESC

ESC

ESC

ESC

ESC

ESC

ENTER

ENTER

ENTER

ENTER

ENTER

ENTER

ENTER

Remarks:

ESC in main menu jumps to first entry of
corresponding sub menu

20 Operation and installation manual SOLIVIA 2.5 AP G3

7.3.1 Submenu N (Now)

This menu item displays the active values.

Main menu N - Now
actual data

N -> AC-Power Value (W)

N -> AC-Voltage Value (V)

N -> AC-Current Value (A)

N -> AC-Frequency
Value (Hz)

N -> PV-Voltage Value (V)

N -> PV-Current Value (A)

N -> Time (HH:MM:SS)

N -> Date
(WD.DD.MM.YYYY)

Down

Down

Down

Down

Down

Down

Down

Up

Up

Up

Up

Up

Up

Up

Down to 2

1

Up to 1

2

Submenu N - Now

ESC

ESC

ESC

ESC

ESC

ESC

ESC

Remarks:

ESC in main menu N jumps to first entry of
sub menu N

ESC

ENTER

Display of the
active output power

Display of the active
output voltage

Display of the active
output current

Display of the active
mains frequency

Display of the active
PV cell voltage

Display of the active
PV cell current

Display of the
current time

Display of current day
of the week and date

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21Operation and installation manual SOLIVIA 2.5 AP G3

7.3.2 Submenu D (Day)

This menu item displays the daily values for the grid feed.

Main menu D - Day statistic

D -> Energy Value (Wh)

D -> AC-Revenue Value
(AUD / Won)

D -> AC-Power-Max
Value (W)

D -> AC-Volt-Max
Value (V)

D -> AC-Volt-Min
Value (V)

D -> AC-Curr-Max
Value (A)

D -> AC-Freq.-Max
Value (Hz)

D -> Runtime Value (Min)

Down

Down

Down

Down

Down

Down

Down

Up

Up

Up

Up

Up

Up

Up

Down to 2

1

Up to 1

2

Submenu D - Day

ESC

ESC

ESC

ESC

ESC

ESC

ESC

Remarks:

ESC in main menu D jumps to first entry of
sub menu D

ESC

ENTER

D -> AC-Freq.-Min
Value (Hz)

ESC

Down

Up

Display of the daily
energy gain

Display of the daily revenue

Display of the daily
maximum output power

Display of the daily max.
output voltage

Display of the daily min.
output voltage

Display of the daily
maximum output current

Display of the daily
maximum output frequency

Display of the daily
minimum output frequency

Display of the daily operating
time of the solar inverter

22 Operation and installation manual SOLIVIA 2.5 AP G3

7.3.3 Submenu W (Week)

This menu item displays the average values of the current week.

Main menu W - Week statistic

W -> Energy Value (kWh)

W -> AC-Revenue
Value (AUD / Won)

W -> Runtime Value (h)

Down

Down

Up

Up

Down to 2

1

Up to 1

2

Submenu W - Week

ESC

ESC

Remarks:

ESC in main menu W jumps to first entry of
sub menu W

ESC

ENTER

Display of the weekly
energy gain

Display of the weekly revenue

Display of the weekly operating
time of the solar inverter

7.3.4 Submenu M (Month)

This menu item displays the average values of the current month.

M -> Energy Value (kWh)

M -> AC-Revenue
Value (AUD / Won)

M -> Runtime Value (h)

Down

Down

Up

Up

Down to 2

1

Up to 1

2

Submenu M - Month

ESC

ESC

Remarks:

ESC in main menu M jumps to first entry of
sub menu M

ESC

ENTER

Display of the monthly
energy gain

Display of the monthly revenue

Display of the monthly operating
time of the solar inverter

7.3.5 Submenu Y (Year)

This menu item displays the average values of the current year.

Main menu Y - Year statistic

Y -> Energy Value (kWh)

Y -> AC-Revenue
Value (AUD / Won)

Y -> Runtime Value (h)

Down

Down

Up

Up

Down to 2

1

Up to 1

2

Submenu Y - Year

ESC

ESC

Remarks:

ESC in main menu Y jumps to first entry of
sub menu Y

ESC

ENTER

Display of the annual
energy gain

Display of the annual revenue

Display of the annual operating
time of the solar inverter

ENGLISH

23Operation and installation manual SOLIVIA 2.5 AP G3

7.3.6 Submenu T (Total)

This menu item shows cumulated and maximum/minimum values since  rst use.

Main menu T - Total statistic

T -> Energy Value (kWh)

T -> Revenue Value
(AUD / Won)

T -> PV-Vol. Max
Value (V)

T -> PV-Cur. Max
Value (A)

T -> PV-Pow. Max
Value (W)

T -> Isolation Max
Value (kOhm)

T -> Isolation Min
Value (kOhm)

T -> Runtime Value (Min)

Down

Down

Down

Down

Down

Down

Down

Up

Up

Up

Up

Up

Up

Down to 2

1

Up to 1

2

Submenu T - Total

ESC

ESC

ESC

ESC

ESC

ESC

ESC

Remarks:

ESC in main menu T jumps to first entry of
sub menu T

ESC

ENTER

Up

Display of the total
energy gain

Display of the total
revenue

Display of the max.
PV cell voltage

Display of the max.
PV cell current

Display of the max.
PV cell power

Display of the largest
insulation resistance

Display of the smallest
insulation resistance

Display of the total operating
time of the solar inverter

24 Operation and installation manual SOLIVIA 2.5 AP G3

7.3.7 Submenu S (Setup)

This menu item is used for changing the presettings of the solar inverter.

Main menu S - Setup

S -> LCD-Contrast
0 ... 9

S -> LCD-Backlight
Auto / On

S -> Menu-Mode
Now ... Setup

S -> Cash per kWh Value
(AUD / Won)

S -> ID-Number
001 ... 254

S -> Solar ISO / GND

S -> Baudrate
2400 ... 38400

Down

Down

Down

Down

Down

Down

Up

Up

Up

Up

Up

Down to 2

1

Up to 1

2

Submenu S - Setup

ESC

ESC

ESC

ESC

ESC

ESC

ESC

ENTER

Up

S -> Time (HH:MM:SS)

Down

ESC

Up

S -> Date
(WD.DD.MM.YYYY)

Down

ESC

Up

S -> Firmware

Down

ESC

Up

Adjustment of the firmware

Adjustment of the brightness of
the LCD display between 0 ... 9

Adjustment of the LCD
background lighting

Selection of the start menu
on restart of the device

Entry of feed-in remuneration in AUD / Won per kWh

Input of the ID number of the solar inverter

Adjustment of the baud rate
between 2400 ... 38400 Baud

Adjustment of the internal clock

Adjustment of current day of the week and date

ISO / GND Setup Menu

S -> Country settings
Name of country

ESC

Down

Adjustment of the country parameters

Up

ENGLISH

25Operation and installation manual SOLIVIA 2.5 AP G3

7.3.7.1 Submenu S: Solar ISO / GND

More detailed information on the Solar ISO / GND menu within the submenu S (Setup).

Submenu Setup
Solar ISO / GND

S -> Solar ISO / GND
ISO ON-Warning

S -> Solar ISO / GND
ISO ON-Failure

S -> Solar ISO / GND
ISO GND-OFF

S -> Solar ISO / GND
PV+ grounded

S -> Solar ISO / GND
PV- grounded

Down

Down

Down

Down

Up

Up

Up

Up

Down to 5

6

Up to 6

5

ESC

ESC

ESC

ESC

ESC

ENTER

Use old setting

ENTER

ENTER

ENTER

ENTER

ENTER

Use new value

7.3.7.2 Submenu S: Country settings

More detailed information on the country settings menu within the submenu S (Setup).

Submenu Setup
Country settings
Name of country

S -> Country settings
Critical undervoltage
x(V) < x.xx(s)

S -> Country settings
Undervoltage
x(V) < x.xx(s)

S -> Country settings
Overvoltage
x(V) < xmin

S -> Country settings
Critical overvoltage
x(V) < x.xx(s)

S -> Country settings
Low frequency
xx.xx(Hz) < x.xx(s)

S -> Country settings
High frequency
x.xx(Hz) < x.xx(s)

S -> Country settings
Islanding
Active / Not active

Down

Down

Down

Down

Down

Down

Down

Up

Up

Up

Up

Up

Up

Up

Down to 5

6

Up to 6

5

ESC

ESC

ESC

ESC

ESC

ESC

ESC

ENTER

S -> Country settings
DC injection
x(mA) < x.xx(s)

ESC

Up

S -> Country settings
Sync time
x(s)

ESC

Down

26 Operation and installation manual SOLIVIA 2.5 AP G3

8 Diagnostics and data evaluation

8.1 Malfunction recti cation

The solar inverter is provided with an automatic diagnostics system which independently identi es
certain faults and which can make them visible on the display.

Troubleshooting in the  eld

In principle, it is always worth attempting a reset by reinitializing the solar inverter whenever an error
message appears on the display.

To reset the device, proceed as follows:

1. Isolate the solar inverter from the grid (open automatic circuit breaker).

2. Switch off the DC disconnector.

3. Wait: approx. 1 minute.

4. Switch DC disconnector back on.

5. Switch in grid (close automatic circuit breaker).

(In the  eld, the  rst step is to scan for potential fault causes that could be picked up by the solar
inverter and result in tripping.)

Various key parameters can be scanned via the display, thereby enabling conclusions to be drawn
about potential fault causes.

Current values in the N menu

AC Voltage -> Display of current output voltage -> Voltage limiting values
AC Frequency -> Display of current grid frequency -> Frequency limiting values
Solar Voltage -> Display of current PV cell voltage -> Switch-in threshold

7.3.7.3 Submenu S: Firmware

More detailed information on the  rmware menu within the submenu S (Setup).

Submenu Setup
Firmware

S -> Firmware

AC-Ctrl maj.min.bug

Down

Down

Down

Up

Up

Up

Down to 4

3

Up to 3

4

ESC

ESC

ESC

ESC

ENTER

S -> Firmware

DC-Ctrl maj.min.bug

S -> Firmware

SC-Ctrl maj.min.bug

S -> Firmware

Display-Ctrl maj.min.bug

ENGLISH

27Operation and installation manual SOLIVIA 2.5 AP G3

8.2 Display messages

LED STATUS

DISPLAY
MESSAGE

CAUSE ELIMINATION

green: <on>
red: <on>
yellow: <on>

-

Display communication
faulty.

- If the fault persists after the device has
been reset, please inform your service
technician.

green: <off>
red: <off>
yellow: <on>

AC frequency
failure

Grid frequency overshoo­ting or undershooting
specied limit range.

- Check the grid frequency via the
display in the N menu.

green: <off>
red: <off>
yellow: <on>

AC voltage
failure

Grid voltage overshooting
or undershooting specied
limit range.

- Check the grid voltage via the display in
the N menu.

- If no voltage present, check grid auto­ matic circuit breaker.

green: <off>
red: <off>
yellow: <on>

AC relay
failure

One of the anti-islanding
protection output relays is
faulty / defective.

- The solar inverter is defective.

- Return the device.

green: <ashes>
red: <off>
yellow: <off>

Calibration
ongoing

Check internal settings. Normal function before input mode.

green: <off>
red: <off>
yellow: <on>

DC injection
failure

DC component of input­side alternating current is
too high.

- If the fault persists after the device has
been reset, please inform your service
technician.

green: <off>
red: <off>
yellow: <on>

Error # 301

Internal communication
error or hardware fault.

- If the fault persists after the device has
been reset, please inform your service
technician.

green: <off>
red: <off>
yellow: <on>

Error # 302

The device trips and
reverts to grid input mode
once the temperature has
dropped.

- Check the installation site (no direct
sunlight, air circulation).

green: <off>
red: <on>
yellow: <off>

Error # 506
Error # 508

Isolation resistance fault
on the DC side during
start-up phase (# 508) or
running phase (# 506).

- Check the isolation resistance on the DC
side of the PV modules.

green: <on>
red: <on>
yellow: <off>

Isolation start­up warning
Isolation run­ning warning

Isolation resistance fault
on the DC side during
start-up phase or running
phase.

- You must check the isolation resistance
on the DC side of the PV modules.
Solar inverter is still feeding!

green: <on>
red: <on>
yellow: <off>

PV+ groun­ding fault
PV- grounding
fault

Connection PV+ (PV-)
to GND is interrupted or
wrong pole is connected
to GND.

- Check that the GND connection has been
made correctly and/or check the fuse in
the grounding path. Change the fuse if
necessary. The solar inverter remains in
feed-in operation.

green: <off>
red: <off>
yellow: <on>

Revision error

Versions of hard- and soft­ware are not compatible.

- If the fault persists after the device has
been reset, please inform your service
technician.

green: <on>
red: <on>
yellow: <on>

Self test
ongoing

Initialization of solar inver­ter on start-up.

The rst time the solar inverter is started
up:

- Normal function with a PV cell voltage
of between 100 V and 150 V.

green: <ashes>
red: <off>
yellow: <off>

PV power too
low

Insufcient input power.

- Insufcient insolation (dawn/twilight).

- Check the PV cell voltage via the
display in the N menu.

green: <ashes>
red: <off>
yellow: <off>

PV voltage
too low

PV generator voltage bet­ween 100 V and 150 V.

- Insufcient insolation.

- Check the PV cell voltage via the
display in the N menu.

green: <ashes>
red: <off>
yellow: <off>

Synchronize
to AC

Checks grid voltage and
grid frequency for grid
input mode.

- Normal function before input mode.

28 Operation and installation manual SOLIVIA 2.5 AP G3

Please follow the instructions above before contacting your service technician!

9 Technical data

LED STATUS

DISPLAY
MESSAGE

CAUSE ELIMINATION

green: <on>
red: <off>
yellow: <ashes>

Varistor
warning

Internal varistor at the DC
input is defective.

- Although you can, in theory, carry on
using the solar inverter, the varistors
should be replaced at the earliest oppor
tunity. This will involve returning the
device.

INPUT (DC) AUSTRALIA CHINA INDIA KOREA TAIWAN

Max. recommended
PV power

3100 W

Nominal power 2750 W

Voltage range 125 ... 540 V 125 ... 540 V 125 ... 540 V 125 ... 500 V 125 ... 540 V

MPP range 150 ... 450 V

Full power MPP range 150 ... 450 V

Nominal current 9.8 A

Max. current 18.0 A

Stand-by power < 0.2 W

OUTPUT (AC) AUSTRALIA CHINA INDIA KOREA TAIWAN

Max. power

1), 2)

2640 W

Nominal power

2)

2500 W

Nominal voltage 230 V 220 V 230 V 220 V 220 V

Voltage range 210.0 ... 264.0 V 187.0 ... 242.0 V 184.0 ... 264.5 V 193.6 ... 242.0 193.6 ... 253.0 V

Nominal current 10.9 A 11.4 A 10.9 A 11.4 A 11.4 A

Max. current 11.9 A 12.9 A 11.9 A 12.9 A 12.9 A

Nominal frequency 50 Hz 50 Hz 50 Hz 60 Hz 60 Hz

Frequency range 48.0 ... 52.0 Hz 49.5 ... 50.5 Hz 47.3 ... 52.7 Hz 59.3 ... 60.5 Hz 58.0 ... 61.0 Hz

Power factor (cos φ) > 0.99 @ nominal power

Total harmonic
distortion (THD)

< 3 % @ nominal power

GENERAL
SPECIFICATION

AUSTRALIA CHINA INDIA KOREA TAIWAN

Model name SOLIVIA 2.5 AP G3

Max. efficiency 96.0 %

Efficiency EU 94.8 %

Operating temperature -25 ... +70°C

Storage temperature -25 ... +80°C

Humidity 0 ... 98 %

Max. operating altitude 2000 m (above sea level)