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Fronius Agilo
75.0-3 / 100.0-3
Operating Instructions
EN
Grid-connected inverter
42,0426,0127,EN 008-26032015
0
Dear reader,
Introduction Thank you for the trust you have placed in our company and congratulations on buying this
high-quality Fronius product. These instructions will help you familiarise yourself with the
product. Reading the instructions carefully will enable you to learn about the many different
features it has to offer. This will allow you to make full use of its advantages.
Please also note the safety rules to ensure greater safety when using the product. Careful
handling of the product will repay you with years of safe and reliable operation. These are
essential prerequisites for excellent results.
EN
1
2
Contents
Safety rules ................................................................................................................................................ 7
General information 11
Protection of people and equipment .......................................................................................................... 13
Safety.................................................................................................................................................... 13
Protection of people and equipment ..................................................................................................... 13
Galvanic (electrical) isolation ................................................................................................................ 13
Monitoring the grid ................................................................................................................................ 13
Warning notices on the device.............................................................................................................. 14
Proper use ................................................................................................................................................. 16
Proper use ............................................................................................................................................ 16
Application area ................................................................................................................................... 16
Regulations governing the photovoltaic system.................................................................................... 16
Functional principle .................................................................................................................................... 17
Functional principle ............................................................................................................................... 17
Cooling of the inverter through forced-air ventilation ............................................................................ 17
Power derating...................................................................................................................................... 17
Solar module grounding........................................................................................................................ 17
The inverter in a photovoltaic system ........................................................................................................ 18
General ................................................................................................................................................. 18
Tasks .................................................................................................................................................... 18
Converting DC to AC current ................................................................................................................ 18
Display function and data communication ............................................................................................ 18
System add-on...................................................................................................................................... 18
Description of the device............................................................................................................................ 19
Outside of inverter................................................................................................................................. 19
Inside the inverter ................................................................................................................................. 20
Connection compartment...................................................................................................................... 21
Data communication area ..................................................................................................................... 22
Possible relay contact functions............................................................................................................ 24
Data communication and Solar Net ........................................................................................................... 26
Solar Net and data interface ................................................................................................................. 26
Overcurrent and undervoltage cut-out .................................................................................................. 26
Description of the 'Fronius Solar Net' LED............................................................................................ 26
Example ................................................................................................................................................ 27
EN
Installation and commissioning 29
Choice of location ...................................................................................................................................... 31
General comments regarding choice of location...................................................................................31
Cabling into the inverter ........................................................................................................................ 31
Criteria influencing choice of location ................................................................................................... 31
Unsuitable locations.............................................................................................................................. 32
Transport.................................................................................................................................................... 33
Transport............................................................................................................................................... 33
Transporting by its lifting eyes using a crane........................................................................................ 33
Transporting by crane using pallet fork................................................................................................. 33
Transporting by forklift truck or lift truck ................................................................................................ 34
Manual transport ................................................................................................................................... 34
Positioning the inverter .............................................................................................................................. 35
Prerequisites ......................................................................................................................................... 35
Positioning the inverter ......................................................................................................................... 35
Notes regarding the air supply and the connection of an exhaust duct ................................................ 36
Connecting the inverter to the public grid (AC) .......................................................................................... 37
Monitoring the grid ................................................................................................................................ 37
Mains connections ................................................................................................................................ 37
Connecting aluminium cables ............................................................................................................... 37
Max. cross-section of AC cables........................................................................................................... 37
Safety.................................................................................................................................................... 38
3
Connecting the inverter to the public grid ............................................................................................. 38
Connecting AC cables with a cable lug................................................................................................. 40
Maximum fuse rating on alternating current side .................................................................................. 41
Connecting an external AC supply for the inverter ...............................................................................41
Fitting and connecting optional overvoltage protection.............................................................................. 42
General ................................................................................................................................................. 42
Safety.................................................................................................................................................... 42
Fitting and connecting overvoltage protection on the DC side.............................................................. 42
Fitting and connecting overvoltage protection on the AC side.............................................................. 43
Fitting and connecting overvoltage protection for the AC- supply......................................................... 43
Connecting the DC cable to the inverter .................................................................................................... 45
General comments regarding solar modules ........................................................................................45
DC connections..................................................................................................................................... 45
Connecting aluminium cables ............................................................................................................... 45
Max. cross-section of DC cables .......................................................................................................... 45
Safety.................................................................................................................................................... 46
Connecting DC cables .......................................................................................................................... 46
Connecting DC cables with a cable lug ................................................................................................ 47
Fuse protection against polarity reversal of DC cables......................................................................... 47
Grounding the solar modules in the inverter .............................................................................................. 48
General ................................................................................................................................................. 48
Grounding the solar module to the negative pole via a fuse................................................................. 48
Safety.................................................................................................................................................... 49
Configuring the inverter for grounded solar modules............................................................................ 49
Grounding the solar module on the negative pole: inserting a fuse...................................................... 49
Closing the inverter .................................................................................................................................... 51
Closing the inverter ............................................................................................................................... 51
Using for the first time ................................................................................................................................ 53
Factory configuration ............................................................................................................................ 53
Using for the first time ........................................................................................................................... 53
Configuring the inverter for existing solar module grounding................................................................ 54
Operation 57
Controls and indicators .............................................................................................................................. 59
Controls and indicators ......................................................................................................................... 59
Display .................................................................................................................................................. 59
Symbols showing function key allocation.............................................................................................. 60
Monitoring and status LEDs.................................................................................................................. 61
Startup phase and feeding energy into the grid ......................................................................................... 62
Startup phase........................................................................................................................................ 62
Feeding energy into the grid ................................................................................................................. 62
Navigation at the menu level...................................................................................................................... 63
Activate display backlighting ................................................................................................................. 63
Automatic deactivation of display backlighting / change to display mode 'NOW' ................................. 63
Open menu level................................................................................................................................... 63
The display modes..................................................................................................................................... 64
The display modes................................................................................................................................ 64
Choosing a display mode...................................................................................................................... 64
Overview of display values ................................................................................................................... 64
Values in display mode 'NOW'................................................................................................................... 66
Choosing a display mode...................................................................................................................... 66
Values in display mode 'NOW'.............................................................................................................. 66
Values in display modes 'TODAY / YEAR / TOTAL' ..................................................................................68
Choose display mode 'TODAY / YEAR / TOTAL' ................................................................................. 68
Values in display modes 'TODAY / YEAR / TOTAL' ............................................................................. 68
The Setup menu ........................................................................................................................................ 71
Initial setting .......................................................................................................................................... 71
Accessing the setup menu.................................................................................................................... 71
Move up and down the menu items ...................................................................................................... 71
Menu items in the Set-up menu ................................................................................................................. 72
Standby................................................................................................................................................. 72
Contrast ................................................................................................................................................ 72
Backlighting........................................................................................................................................... 72
4
Language ............................................................................................................................................. 73
Currency .............................................................................................................................................. 73
CO2 factor............................................................................................................................................. 73
Yield ...................................................................................................................................................... 73
DATCOM .............................................................................................................................................. 74
Device Info ............................................................................................................................................ 74
Device Status........................................................................................................................................ 76
Time ..................................................................................................................................................... 76
Status LT............................................................................................................................................... 76
Grid Status ............................................................................................................................................ 76
Fan test ................................................................................................................................................. 76
Version.................................................................................................................................................. 76
Setting and displaying the menu items ...................................................................................................... 78
Setting the menu items, general ........................................................................................................... 78
Exiting a menu item .............................................................................................................................. 78
Practical examples for setting and displaying menu items ................................................................... 79
Setting the display backlighting............................................................................................................. 79
Setting the currency and feed-in tariff ................................................................................................... 79
Setting the time and date ...................................................................................................................... 81
Switching the key lock on and off............................................................................................................... 83
General ................................................................................................................................................. 83
Switching the key lock on and off.......................................................................................................... 83
Troubleshooting and maintenance 85
Status diagnostics and troubleshooting ..................................................................................................... 87
Displaying status codes ........................................................................................................................ 87
Total failure of the display ..................................................................................................................... 87
Class 1 status codes............................................................................................................................. 87
Class 3 status codes............................................................................................................................. 89
Class 4 status codes............................................................................................................................. 90
Class 5 status codes............................................................................................................................. 96
Class 7 status codes............................................................................................................................. 98
Class 10 - 12 status codes.................................................................................................................... 101
Customer service .................................................................................................................................. 101
Maintenance .............................................................................................................................................. 102
Safety.................................................................................................................................................... 102
Maintenance guidelines ........................................................................................................................ 102
Replacement of components ................................................................................................................ 102
Opening the inverter for maintenance work .......................................................................................... 102
Operation in environments subject to heavy accumulations of dust ..................................................... 103
Replacing fuses ......................................................................................................................................... 104
Safety.................................................................................................................................................... 104
Replacing the reverse polarity protection fuse...................................................................................... 104
EN
Appendix 107
Technical data............................................................................................................................................ 109
Fronius Agilo 75.0-3.............................................................................................................................. 109
Fronius Agilo 100.0-3............................................................................................................................ 110
Explanation of footnotes ....................................................................................................................... 111
Applicable standards and guidelines ......................................................................................................... 112
CE mark ................................................................................................................................................ 112
Parallel operation of in-plant generation systems ................................................................................. 112
Power failure ......................................................................................................................................... 112
Warranty terms and conditions, and disposal ............................................................................................ 113
Fronius manufacturer's warranty .......................................................................................................... 113
Disposal
................................................................................................................................................ 113
5
6
Safety rules
EN
Explanation of
safety symbols
General
DANGER! Indicates immediate and real danger. If it is not avoided, death or se-
rious injury will result.
WARNING! Indicates a potentially dangerous situation. Death or serious injury
may result if appropriate precautions are not taken.
CAUTION! Indicates a situation where damage or injury could occur. If it is not
avoided, minor injury and/or damage to property may result.
NOTE! Indicates a risk of flawed results and possible damage to the equipment.
IMPORTANT! Indicates tips for correct operation and other particularly useful information.
It does not indicate a potentially damaging or dangerous situation.
If you see any of the symbols depicted in the "Safety rules" chapter, special care is required.
The device is manufactured using state-of-the-art technology and according
to recognised safety standards. If used incorrectly or misused, however, it can
cause
- injury or death to the operator or a third party,
- damage to the device and other material assets belonging to the operating company,
- inefficient operation of the device.
All persons involved in commissioning, maintaining and servicing the device
must
- be suitably qualified,
- have knowledge of and experience in dealing with electrical installations
and
- read and follow these operating instructions carefully.
The operating instructions must always be at hand wherever the device is being used. In addition to the operating instructions, attention must also be paid
to any generally applicable and local regulations regarding accident prevention and environmental protection.
All safety and danger notices on the device
- must be kept in a legible state
- must not be damaged/marked
- must not be removed
- must not be covered, pasted or painted over.
For the location of the safety and danger notices on the device, refer to the
section headed "General remarks" in the operating instructions for the device.
Before switching on the device, rectify any malfunctions that could compromise safety.
Your personal safety is at stake!
7
Proper use
The device is to be used exclusively for its intended purpose.
Any use above and beyond this purpose is deemed improper. The manufacturer shall not be liable for any damage resulting from such improper use.
Proper use also includes:
- carefully reading and obeying all the instructions and all the safety and
danger notices in the operating instructions
- performing all stipulated inspection and servicing work
- installation as specified in the operating instructions
The following guidelines should also be applied where relevant:
- Regulations of the company providing the mains power supply
- Instructions from the PV module manufacturer
Environmental
conditions
Qualified service
engineers
Operation or storage of the device outside the stipulated area will be deemed
as "not in accordance with the intended purpose". The manufacturer shall not
be held liable for any damage arising from such usage.
For exact information on permitted environmental conditions, please refer to
the "Technical data" in the operating instructions.
The servicing information contained in these operating instructions is intended
only for the use of qualified service engineers. An electric shock can be fatal.
Do not perform any actions other than those described in the documentation.
This applies even if you are qualified to do so.
All cables and leads must be secure, undamaged, insulated and adequately
dimensioned. Loose connections, scorched, damaged or inadequately dimensioned cables and leads must be immediately repaired by authorised personnel.
Maintenance and repair work must only be carried out by authorised personnel.
It is impossible to guarantee that bought-in parts are designed and manufactured to meet the demands made of them, or that they satisfy safety requirements. Use only original spare parts (also applies to standard parts).
Do not carry out any modifications, alterations, etc. to the device without the
manufacturer's consent.
Components that are not in perfect condition must be changed immediately.
Safety measures
at the installation
location
8
When installing devices with openings for cooling air, ensure that the cooling air can enter
and exit unhindered through the air ducts. Only operate the charger in accordance with the
degree of protection shown on the rating plate.
Noise emission
values
The inverter generates a maximum sound power level of < 80 dB(A) (ref. 1
pW) when operating under full load in accordance with IEC 62109-1:2010.
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.
EN
EMC Device Classifications
EMC measures
Mains connection
Devices in emission class A:
- Are only designed for use in industrial settings
- Can cause line-bound and radiated interference in other areas
Devices in emission class B:
- Satisfy the emissions criteria for residential and industrial areas.
This is also true for residential areas in which the energy is supplied from the public low-voltage mains.
EMC device classification as per the rating plate or technical data.
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.
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 the maximum permissible mains impedance *)
- criteria with regard to the minimum short-circuit power requirement *)
Electrical installations
*) at the interface with the public mains supply
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.
Electrical installations must only be set up set up to the relevant national and
local standards and regulations.
9
Protective measures against ESD
Danger of damage to electrical components from electrical discharge. Suitable
measures should be taken to protect against ESD when replacing and installing components.
Safety measures
in normal operation
Safety symbol
Disposal
Only operate the device if all safety devices are fully functional. If the safety
devices are not fully functional, there is a risk of
- injury or death to the operator or a third party,
- damage to the device and other material assets belonging to the operator,
- inefficient operation of the device.
Any safety devices that are not functioning properly must be repaired by a suitably qualified engineer before the device is switched on.
Never bypass or disable safety devices.
Devices with the CE mark satisfy the essential requirements of the low-voltage
and electromagnetic compatibility directives. Further details can be found in
the appendix or the section headed "Technical data" in your documentation.
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 either be returned to your dealer or given to one of the approved collection and recycling facilities in your area. Ignoring this European Directive may
have potentially adverse affects on the environment and your health!
Data protection
Copyright
10
The user is responsible for the safekeeping of any changes made to the factory settings. The manufacturer accepts no liability for any deleted personal
settings.
Copyright of these operating instructions remains with the manufacturer.
The text and illustrations are all technically correct at the time of printing. We
reserve the right to make changes. The contents of the operating instructions
shall not provide the basis for any claims whatsoever on the part of the purchaser. If you have any suggestions for improvement, or can point out any
mistakes that you have found in the instructions, we will be most grateful for
your comments.
General information
Protection of people and equipment
EN
Safety
Protection of people and equipment
Galvanic (electrical) isolation
Monitoring the
grid
WARNING! If the equipment is used or tasks are carried out incorrectly, serious
injury or damage may result. Commissioning of the inverter may only be carried
out by trained personnel in accordance with the technical regulations. It is essential that you read the "Safety Regulations" chapter before commissioning the
equipment or carrying out maintenance work.
The inverter is constructed and operated in the safest possible way, both in terms of installation and operation.
The inverter fulfils the role of protecting people and equipment:
a) through galvanic (electrical) isolation
b) by monitoring the grid
The inverter has a 50/60 Hz three-phase transformer that provides electrical isolation between the DC side and the grid, thus guaranteeing the highest possible levels of safety.
In the event of abnormal grid conditions, the inverter shuts down immediately according to
national standards and guidelines and stops feeding energy into the grid (e.g. in the event
of grid disconnection, interrupts, etc.)
Grid monitoring is carried out by:
- monitoring the voltage
- monitoring the frequency
- using over/undervoltage relays (option, depends on country setup)
- monitoring the stand alone situation
13
Warning notices
on the device
There are warning notices and safety symbols on and in the inverter. These warning notices and safety symbols must not be removed or painted over. They warn against operating
the device incorrectly, as this may result in serious injury and damage.
(10
(10
(10
(10
Safety symbols:
Risk of serious injury and damage due to incorrect operation
Do not use the functions described here until you have fully read and understood
the following documents:
- these operating instructions
- all the operating instructions for the system components of the photovoltaic
system, especially the safety rules
Dangerous electrical voltage
(10
Fronius Agilo 100.0-3
14
Discharging of the energy storage device is time-controlled
Text of the warning notices:
WARNING!
An electric shock can be fatal. Make sure that both the input side and output side of the
device are de-energised before opening the device. Wait for the capacitors to discharge
(10 minutes).
EN
15
Proper use
Proper use The solar inverter is intended exclusively to convert direct current from solar modules into
alternating current and to feed this into the public grid.
Utilisation not in accordance with the intended purpose comprises:
- utilisation for any other purpose or in any other manner
- making any modifications to the inverter that have not been expressly approved by
Fronius
- the installation of parts that are not distributed or expressly approved by Fronius.
Fronius shall not be liable for any damage resulting from such action.
No warranty claims will be entertained.
Proper use also includes:
- complying with all the instructions in the operating instructions
- performing all stipulated inspection and maintenance work
Application area The inverter has been developed exclusively for use in grid-connected photovoltaic sys-
tems; generating energy independently of the public grid is not possible.
Regulations governing the photovoltaic system
The inverter is designed to be connected and used exclusively in conjunction with solar
modules.
Use of the inverter with other DC generators (e.g. wind generators) is not permitted
When designing the photovoltaic system, ensure that all its components are operated within their permitted operating ranges at all times.
Observe all the measures recommended by the solar module manufacturer to ensure the
lasting maintenance of the properties of the solar module.
16
Functional principle
EN
Functional principle
Cooling of the inverter through
forced-air ventilation
The inverter operates fully automatically. The control module starts monitoring the grid voltage and frequency as soon as the solar modules produce enough energy after sunrise.
When insolation has reached a sufficient level, the solar inverter will start to feed energy
into the grid.
The inverter works in a way that ensures the maximum power possible is obtained from the
solar modules.
This is known as "Maximum Power Point Tracking" (MPPT).
As soon after dusk as the power available to feed into the mains falls below a sufficient
level, the inverter disconnects from the mains supply. It retains all its settings and stored
data.
Cooling of the inverter is performed by a forced-air ventilation system via a temperaturecontrolled radial fan. Air is sucked in from the front and fed, via a sealed duct, through the
electronics compartment, before passing directly over the inductors and dissipating upwards.
The sealed air duct prevents the electronics compartment from coming into contact with
the ambient air. This approach largely prevents any contamination of the electronics compartment.
The speed of the fan and temperature of the intake air are monitored.
The variable-speed, ball-bearing mounted fans in the inverter permit the following:
- optimum cooling of the inverter
- a higher level of efficiency
- cooler parts, therefore a longer service life
- lowest-possible energy consumption and noise levels
Power derating To protect the inverter if adequate heat dissipation is not possible, even with the fans run-
ning at full speed (e.g. when installed in containers without proper heat dissipation measures), the operation known as power derating takes place above an ambient temperature
of approximately 40 °C.
Power derating briefly reduces the power of the inverter to prevent the temperature exceeding its permitted limit.
The inverter remains operational for as long as possible without stopping.
Solar module
grounding
The inverter is designed for use with non-grounded solar modules and those grounded on
the negative pole.
Grounding of the solar module on the negative pole is carried out inside the inverter via a
fuse holder equipped with a corresponding fuse as required.
17
The inverter in a photovoltaic system
General The solar inverter acts as a highly sophisticated link between the solar modules and the
public grid.
Tasks The main tasks of the inverter are as follows:
- converting DC to AC current
- fully automatic operational management
- display function and data communication
Converting DC to
AC current
Display function
and data communication
System add-on The inverter is able to accommodate a wide variety of system add-ons, such as:
The inverter converts the direct current created in the solar modules into alternating current. This alternating current is fed synchronously with the grid voltage into the in-house
network or the public grid.
IMPORTANT! The inverter has been developed exclusively for use in grid-connected photovoltaic systems; generating energy independently of the public grid is not possible.
The display on the inverter acts as the interface between the inverter and the user. The
display design is oriented towards simple operation and to making the system data available at all times.
The inverter has a range of basic functions for logging minimum and maximum values on
a daily and total basis. The values are output on the display.
An extensive selection of data communication elements opens up numerous recording and
visualisation options.
- a datalogger, to enable a PC to record and manage data from a photovoltaic system
- various large-format displays
- interfaces to transfer system data in a freely accessible format
- devices to combine and monitor solar module strings
18
The inverter is not designed to be used with optional plug-in cards. System add-ons must
be installed in a separate housing.
Description of the device
EN
Outside of inverter
(14)
(13)
(12)
(11)
(10)
(1)
(2)
(3)
(4)
(5)
(9)
Item Description
(1) Outlet air opening, diameter 315 mm
(2) Lifting eye for crane transport
(3) Lifting eye for crane transport
(4) Air inlet grille
(5) Door handle (lockable)
(6) Right side panel (opposite: left side panel)
(7) Front cover (opposite: rear cover)
(8) Forklift truck receptacle
(9) Base
(10) DC main switch, lockable when switched off
IMPORTANT! The door cannot be opened when the DC main switch is switched
on.
(11) Door
(12) Control elements (display, buttons, monitoring and status LEDs)
(6)
(7)
(8)
19
Inside the inverter
Item Description
(13) Lifting eye for crane transport
(14) Lifting eye for crane transport
(10)
(1)
(2)
(3)
(4)
(5)
(6)
DC AC
(7)
(8)
(9)
Item Description
(1) Fan
(2) Holes for air inlet grille fastening screws (5x)
(3) Data communication area
(4) Fuse holder for operation with solar modules grounded on the negative pole:
DC- to PE
(5) 2-pin automatic circuit breaker
to protect the AC power supply
(6) 4-pin automatic circuit breaker
to protect the measuring lines on the grid side
(7) Revision cover
(8) Connection compartment
(9) Door catch
(10) DC main switch
20
The DC main switch shaft is not fitted when the inverter is delivered.
Connection compartment
EN
(1) (2) (3)(4) (5) (6) (7) (8) (9)
Item Description
(1) DC+ connections
(2) Openings for attaching the strain-relief clamps* for the DC+ cable
(3) Cable input opening with sliding cover and seal
(4) DC- connections
(5) Openings for attaching the strain-relief clamps* for the DC- cable
(6) Openings for attaching the strain-relief clamps* for the AC cable
(7) Grounding terminal for AC cable
(8) Mains connections L1, L2, L3 and N with connection cover
(9) AC power supply
* The strain-relief clamps and other installation and connection accessories are
part of the scope of supply of the inverter.
21
Data communication area
(1) (2) (3) (4) (5) (6) (7) (10)(8) (9)
Item Description
(1)
(2)
for future use
(3) Solar Net IN connection socket
'Fronius Solar Net' input, for connecting to other DATCOM components (e.g. inverter, sensor box, etc.)
(4) Solar Net OUT connection socket
'Fronius Solar Net' output, for connecting to other DATCOM components (e.g. inverter, sensor box, etc.)
(5) VSR connection socket
for connecting an external measuring and monitoring relay
The contact must be potential-free.
Contact rating 24 V / 10 mA
22
Item Description
(6) NO/alarm terminals
| S3 EXT 2 | 3 IN1 4 | 5 IN2 6 | 7 IN3 8 |
S3 - 2 EXT
for connecting an external NO contact, e.g. to isolate the device from the
grid voltage using an AC contactor;
connected using bracket when delivered.
EN
3 - 4 IN1
for connecting and evaluating a floating alarm contact
5 -6 IN2
for connecting and evaluating a floating alarm contact
7 - 8 IN3
for connecting and evaluating a floating alarm contact
The contacts must be potential-free.
Contact rating 24 V / 10 mA
Cable cross-section: 0.5 - 6 mm²
Tightening torque of terminals: 0.8 - 1.6 Nm
(7) 'Solar Net' LED
shows the current status of the Fronius Solar Net
(8) Fuse F1 for switched-mode power supply, 4 A slow-blow
23
Item Description
(9) Relay output terminals
| NC1 SC1 NO1 | NC2 SC2 NO2 |
NC1 NC for relay contact 1
SC1 Relay contact 1
NO1 NO for relay contact 1
NC2 NC for relay contact 2
SC2 Relay contact 2
NO2 NO for relay contact 2
Possible relay
contact functions
Cable cross-section: 0.5 - 6 mm²
Tightening torque of terminals: 0.8 - 1.6 Nm
Max. continuous current: 16 A
Switching load: 500 mW (10 V / 5 mA)
Switching capacity: 16 A / 250 V (AC1) and 16 A / 30 V (DC1)
The relay outputs are not protected.
Relay contacts can be assigned different functions in the Basic service menu. The
access code 22742 must be entered to access the Basic service menu:
- Press the 'Menu' key
- Select 'Setup' mode
- Press the unassigned 'Esc' button five times
- Enter the access code 22742
- Select the 'Switch contact 1' or 'Switch contact 2' parameter
- Set the desired relay contact function
(10) F2 fuse, 4 A slow-blow
Function Switch contact ac-
tivation criterion
1)
Switch contact deactivation criteri-
2)
on
Description
Off - Permanently OFF Function switched
off
On Permanently ON - Test function for NO/
alarm contact
AC Open AC contactor is open AC contactor is
closed
No contactor error
signal or AC grid
24
Function Switch contact ac-
tivation criterion
1)
Fan On Cabinet fan in opera-
tion
> 40 °C max. internal tem-
perature >/= 40 °C
> 50 °C max. internal tem-
perature >/= 50 °C
Sig. Rel. NO/alarm contact
trips
Running Inverter feeding en-
ergy into the grid
Warning Defined warning sta-
tus codes
Error Defined error status
codes
Switch contact deactivation criteri-
2)
on
Cabinet fan not
working
max. internal temperature </= 30 °C
max. internal temperature </= 40 °C
Error confirmation at
the touch of a button
/ by Solar Net command
Inverter not feeding
energy into the grid
Error confirmation at
the touch of a button
/ by Solar Net command
Error confirmation at
the touch of a button
/ by Solar Net command
Description
EN
External ventilation /
air conditioning can
be activated
Status indicator / relay contact switches
Control of powered
non-return valve
NO/alarm contact
activation, when certain warning status
codes occur at a
specific frequency
according to the 'Error-Counter' Service
menu
NO/alarm contact
activation, when certain error status
codes occur at a
specific frequency
according to the 'Error-Counter' Service
menu
1)
Activation = the NC for the relay contact opens, the NO closes
2)
Deactivation = the NC for the relay contact closes, the NO opens
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Data communication and Solar Net
Solar Net and
data interface
Overcurrent and
undervoltage cutout
Fronius Solar Net was developed to make system add-ons flexible and capable of being
used in a wide variety of different applications. Fronius Solar Net is a data network that
enables more than one inverter to be linked up using system add-ons.
It is a bus system. A single cable is all that is required for one or more inverters to communicate with all the system add-ons.
Fronius Solar Net automatically recognises a wide variety of system add-ons.
In order to distinguish between several identical system add-ons, each one must be assigned a unique number.
Similarly, every inverter on the Fronius Solar Net must be assigned a unique number.
Refer to the section entitled 'The Setup-Menu‘ for instructions on how to assign a unique
number.
More detailed information on the individual system add-ons can be found in the relevant
operating instructions or on the internet at http://www.fronius.com.
More detailed information on cabling DATCOM components can be found at
http://www.fronius.com - Solar Electronics / Info & Support / Document downloads / Operating instructions / System monitoring / Fronius DATCOM cabling guide.
The data communications electronics have a cut-out function that interrupts the power supply in the Fronius Solar Net:
- in response to overcurrent, e.g. in the event of a short circuit
- in response to undervoltage
Description of the
'Fronius Solar
Net' LED
The overcurrent and undervoltage cut-out does not depend on the current flow direction. If
the Fronius Solar Net measures a current flow > 3 A or a voltage < 6.5 V, the power supply
in the Fronius Solar Net is interrupted.
The power supply is restored automatically.
The 'Fronius Solar Net' LED is on:
the power supply for data communication within the Fronius Solar Net is OK
The 'Fronius Solar Net' LED is off:
data communication error in the Fronius Solar Net
- Overcurrent (current flow > 3 A, e.g. resulting from a short circuit in the Fronius Solar
Net)
- Undervoltage (not a short circuit, voltage in Fronius Solar Net < 6.5 V, e.g. if there are
too many DATCOM components on the Fronius Solar Net and not enough electrical
power is available)
In this case, power for the DATCOM components must be supplied by connecting an
external power unit to one of the DATCOM components.
To detect the presence of an undervoltage, check some of the other DATCOM components as required.
The 'Fronius Solar Net' LED flashes briefly every 5 seconds:
following a shutdown as the result of an overcurrent or undervoltage, the inverter attempts
to restore the power supply to the Fronius Solar Net every 5 seconds while the fault persists.
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Once the fault is rectified, power to the Fronius Solar Net will be restored within 5 seconds.
Example Recording and archiving of inverter data using Fronius Datalogger Web, data output on ex-
ternal display:
EN
Fronius Agilo
Fronius IG Plus
Display
Fronius Datalogger Web
12VDC 1A
Class 2
12VDC
Output
Class 2
Input only
max. 42V AC/6A
US: Class 2 only
RS232
IN
OUT
LAN
IN
OUT
Fronius
Public Display
Box
IN
OUT
= terminating plug
PC / Laptop
= Fronius Com Card
Captions:
Fronius Solar Net data network with
- 1 Fronius Agilo
- 1 Fronius IG Plus with a 'Fronius Com Card'
- 1 Fronius Datalogger Web with LAN interface for connecting to a PC/laptop
- 1 Fronius Public Display Box
- 1 external display
Communication between the individual components themselves is handled by Fronius Solar Net.
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