Delta SOLIVIA 5.0 AP G3 Specification sheet

Operation and installation manual for
SOLIVIA 5.0 AP G3
5.0
AP

ENGLISH
1Operation and installation manual SOLIVIA 5.0 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 reprodu-
ced 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 5.0 AP G3

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3Operation and installation manual SOLIVIA 5.0 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 11
6.7.1 Output power over PV voltage 12
6.7.2 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: Firmware 25
8 Diagnostics and data evaluation 26
8.1 Malfunction rectification 26
8.2 Display messages 26
9 Technical data 28
10 Appendix 30
10.1 Connection examples 30
10.2 Overview of connection diagrams 32
11 Glossary 34
12 Certificates 142

4 Operation and installation manual SOLIVIA 5.0 AP G3
1 Scope of delivery
• SOLAR INVERTER SOLIVIA 5.0 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 5.0 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 5.0 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 high-
frequency 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 com-
pliance 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 ca-
pable 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 5.0 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 tempera-
tures (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 open-
circuit voltage of 540 VDC 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 dust-
proof) and is protected against weathering processes by surface re nement. The cooling charac-
teristic pro le is designed so that operation of the inverter is possible with ambient temperatures
from -25 °C to +60 °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 tem-
peratures 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 consis-
tent 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 nomi-
nal 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 5.0 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 5.0 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 5.0 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 32.0 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 5.0 AP G3
6.5 Ambient temperature
The solar inverter can be operated in an ambient temperature between -25°C to +60°C.
The following diagram illustrates how the power supplied by the solar inverter is reduced automa-
tically in accordance with ambient temperature.
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 cor-
rect 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 4.0 mm².
An automatic circuit breaker is to be provided in the line L upstream of every device, with a nominal
current of 32 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.
0 W
1000 W
2000 W
3000 W
4000 W
5000 W
6000 W
0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 8
0 °C

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11Operation and installation manual SOLIVIA 5.0 AP G3
6.7 Connection of PV modules
Before the photovoltaic system is connected, the polarity of the PV voltage at the Multi-Contact con-
nectors 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. The maximum current load of each indi-
vidual Multi-Contact MC4 connector is 18 A.
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.

12 Operation and installation manual SOLIVIA 5.0 AP G3
6.7.1 Output power over PV voltage
CABLE
COUPLER
POLARITY
WIRE SIZE
2.5 MM2
(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:
0
100 0 W
200 0 W
300 0 W
400 0 W
500 0 W
600 0 W
150 VDC 200 VDC 250 VDC 300 VDC 350 VDC 400 VDC 450 VDC

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13Operation and installation manual SOLIVIA 5.0 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
6.7.2 Efciency
The best efciency of the solar inverter is obtained at input voltages >250 V.
50 W 500 W 1000 W 1500 W 2000 W 2500 W 3000 W 3500 W 4000 W 4500 W 5000 W
60 %
65 %
70 %
75 %
80 %
85 %
90 %
95 %
100 %
SOLIVIA 5.0 - 150 V SOLIVIA 5.0 - 250 V SOLIVIA 5.0 - 350 V SOLIVIA 5.0 - 450 V

14 Operation and installation manual SOLIVIA 5.0 AP G3
81
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 5.0 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
Anti-
islanding
protection
Communi-
cation
Operating- and system control
MPP-
Tracker -
-
Booster
-
-
Isolation
DC-Bus
-
~
Solar inverter
DC
DC
DC
DC
String A
String B
String C
String D
AC
Public
grid
15
Operation and installation manual SOLIVIA 5.0 AP G3
attached to the casing. In no case must the device be opened!

16 Operation and installation manual SOLIVIA 5.0 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 (countries available: China, India, Australia, Aus-
tralia PL1) and Thailand PEA).
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 5.0 AP G3 will be as followed :
Max power: 4990 W
Nominal power: 4600 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:
For Australia PL
This product has been power limited
at maximal output power of: 4.99 kW
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) xx,xx
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 AU L
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
AUstralia Limitation

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17Operation and installation manual SOLIVIA 5.0 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 moni-
toring. Starting conditions are tested.

18 Operation and installation manual SOLIVIA 5.0 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!