PV Monitoring & Control from Carlo Gavazzi

1. CARLO GAVAZZI
Automation Components
Management and control system for photovoltaic plants

2. Eos
Eos Array, Eos Box, Eos Gate
Protecting the environment is a fundamental ideal that
requires dedication and care, which is why every solar
project is a vital project. It needs the same attention that we
devote to the things we love.
Care and attention, are essential values for Carlo Gavazzi,
when developing the control system for photovoltaic plants.
This ensures the solar investment is a solid investment.
The Carlo Gavazzi solution develops with Eos-Array, Eos-
Gate and Eos-Box depending upon the requirements and
complexity of the photovoltaic plant.
Eos-Array and Eos-Array Lite are systems comprised of
individual modular elements that, when interacting with one
another, provide efficient local control to the solar plant.
Whether it’s a small/medium power or high power plant,
you are assured there is effective information management.
The Eos-Array provides a compact, simple, versatile and
innovative solution. Eos-Box is a web server that controls
and supervises the whole installation, while Eos-Gate using
WEB-Service technique sends data to WEB portals. Both
solution can gather data from:
• Eos-Array groups;
• Inverters;
• Energy meters.
The Eos-Box and the Eos-Gate provide information in a
quick and automatic fashion via the internet, so the data is
available wherever you are.
Management and control system for photovoltaic plants
Eos Array: case of external connection via modem. Plant database
• Measurement and control functions split into independent download by means of EosArraySoft.
modules in order to improve the critical system reliability. • Notification of abnormal conditions as soon as they
• String efficiency and BOS efficiency measurements are occur for a prompt service intervention.
fundamental parameters to evaluate the yield of the • Comprehensive control solution capable of showing
photovoltaic plant. efficiency, yield graphs and the management of any
• Local alarm management for fast and easy identification. useful information which is accesible by the user from any
• Integrated fuse protection for cost and installation time place in the world just by using his PC browser.
saving.
• Eos application adaptability - the costomer can choose Eos Gate:
according to his project philosophy which unit/s best • Monitoring up to 200kW photovoltaic installations by
suits his application giving him the freedom to find means of a remote Web Portal.
different solutions to his application problems. • Data polling (measurements and alarms) from Eos-Array,
• Features expansion capability based on usage of Eos-Array Lite solution, energy meters and inverters
different modules and quantities so to meet application transmitted to a remote web-server by means of Internet,
needs from small (10kWp) to large solar PV plants. using web-services to avoid firewall related issues.
• Multicolor LEDs provide immediate feedback on • Use of “XML” (Extensible Markup Language) based
variables, alarms, fuse status and communication, communication protocols granting high degree of
showing the relevant details on the display. flexibility, allowing Eos-Gate to push data to multiple
monitoring portals, like the Carlo Gavazzi Web Portal
Eos Box: and the Fat Spaniel® Web Portal.
• Cost effective yield efficiency and plant failure warning
with additional manual or automatic database download
for easy plant history analysis.
• Plant failure warning by means of e-mail and SMS in the
2 CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only.

3. How can you protect your investment?
A solar installation, never mind if it’s How much money will you lose
small or large it’s always an important if your solar system stops for
investment. three days?
You can protect your investment if:
• You meet the performance limits! To ensure you don’t lose money
• You know the system is working properly! then you need a CONTROL
• You realize the hoped-for solar electric solution.
performance level!
• You prove that you’ve produced results!
• You payback the investment!
A reliable control … has to be an independent control!
Providing you with dependable and • The inverter fails.
accurate data, promptly advising
when: Moreover, focused control on every
• The photovoltaic modules are not single string provides an immediate
performing; localization of the fault reducing
• The photovoltaic modules are not significantly the service time and the
correctly connected; missed yield costs.
• The modules are removed (theft)
The major control solution today
• Has fixed number of string • Is difficult to repair when failure
controllers; occurs;
• Is space consuming; • Has yield data available mainly
• Is complex to wire; from the inverter.
Eos Array: versatile, a characteristic that makes work easier
Eos-Array is modular and can be
formed by: VMU-M the master unit
and data logger; VMU-S the string
controller; VMU-P the environment
variable unit, VMU-O the I/O unit,
VMU-AT the antitheft sensor and VMU-
1 the isolation enhancement unit.
Integrated fuse protection
CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only. 3

4. Eos
Eos Array and Eos Array Lite
Information and control... everywhere
Local
Eos-Array control with local alarm
output and with the additional
possibility to be connected to a PC
running freeware Eos-ArraySoft.
Cost effective yield efficiency and
plant failure warning with additional
manual or automatic database
download for easy plant history
analysis.
Remote
Plant failure warning by means of
GSM communication and proper
SMS and plant database download
by means of Eos-ArraySoft.
Notification of abnormal conditions
as soon as they occur for a prompt
service intervention.
Advanced
Eos-Box embedded Pc based WEB
server capable to gather data from:
Eos-Arrays, Inverters and Energy
meters. Comprehensive control
solution capable of showing
efficiency, yield graphs and the
management of any useful information
which is accessible by the user from
any place in the World just by using
his PC browser.
Eos Array Lite
Eos-Array Lite is the answer to those maintenance. Eos-Array Lite is
photovoltaic applications where a less specifically developed to be
sophisticated control is needed. This integrated in either a small or medium
solution is based on the same overall size photovoltaic park where all the
concept of Eos-Array such as most significant data are transmitted
modularity, integrated string fuse via RS485 Modbus at a maximum
protection but being focused to speed of 115.2 kbit/s to the local PV
measure and control only the string Energy Management System. An
current and voltage. As undoubted essential working tool is represented
result this string control provides an by Eos-ArrayLSoft a freeware software
immediate string failure detection and which allows the user to easily
localisation of the wrong PV panel configure Eos-Array Lite, check the
connection, a faster plant communication wiring and remotely
commissioning and future read the available measurement data.
4 CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only.

5. Eos
Eos Array and Eos Array Lite
Why to choose Eos-Array or Eos-Array Lite
As each application has unique control solution:
requirements, Carlo Gavazzi has • Eos-Array
designed distinctive products for solar or a simplified control solution:
applications offering an advanced • Eos-Array Lite
Eos Array and Eos Array Lite are
provided with a specific
communication and power supply bus
Eos-Array completeness of control, Eos-Array Lite synthesis of control that allows the moules to communicate
and antitheft control each other in any needed
configuration thus simplifying and
reducing the installation time.
Versatility of Eos-Arry and Eos-Array Lite
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EOS-Array can be formed by: EOS-Array Lite can be formed by: If an isolation to earth up to 1000VDC
1 VMU-M, up to 15 VMU-S, up to 7 1 VMU-ML, up to 15 VMU-S0, up to 2 (instead of standard 800VDC) is
VMU-O, up to 1 VMU-P but not VMU-O, up to 1 VMU-P but not requested, one VMU-1 can be added
exceeding 16 units and up to 3 exceeding 16 units in tota. between the VMU-S/VMU-S0 group
additional VMU-AT antitheft sensors. of units and all the other units, in this
latter case the total number of units
cannot exceed 17.
CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only. 5

6. Eos
Eos Array and Eos Box
The EOS comprehensive monitoring solution
Monitoring solution based on embedded web-server for PV farms up to 5MWp
For a highly disturbed installation, because of centralised
SIU-FO Inverters a glass fibre optic communication system is avail-
Eos-Array 1...20 able with single loop or double loop communication.
Communication by fiber optic
Eos-Array 1...20
Eos-Array 21...40 RS485
Eos-Box
Eos-Array 41...60
Eos-Array 61...80 RS485
Eos-Array 81...110
RS485
Eos-Array 111...130
RS485
kWh meter 1...8
Remote reading of Solar park
Inverter group 1...10
Inverter group 11...20 Inverter group 21...30
Overall features: Compatibility to:
• Plant information. • Eos-Array solution
• Plant map for failure localization. • Carlo Gavazzi and more than 20 different Inverter
• Webcam management. manufacters
• Real-time display with alarm indication. • Carlo Gavazzi and other energy meters
• Graphical and analytical yield trends.
• Alarm and events logging. This architecture can manage up to:
• Extremely high level of data reliability and management • 130 Eos-Array (9600 bps communication speed and 10
because of local Eos-Array data logging and Eos-Box min time interval), see also string-boxes
centralised data logging. In case of Eos-Array failure the • 30 Inverters (depending on inverter’s communication
data is available in Eos-Box and vice versa. speed)
• 100 to 240VAC power supply • 8 energy meters
• Wall/DIN-rail mounting type
6 CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only.

7. Eos
Eos Array, Eos Array Lite and Eos Gate
The EOS comprehensive monitoring solution
Monitoring solution based on web-service protocols for PV installations up
to 200kWp
Eos-Array 1, 2
Eos-Gate
Eos-Array 3, 4
Eos-Array 5, 6
RS485 XML-PUSH
Eos-Array 7, 8 TCP/IP
Eos-Array 9, 10
WEB Service
kWh meter
Inverter group
Overall features: Compatibility to:
• Plant information based on available portal services • Eos-Array solution
(alarms, graphical and analytical yield trends) • Eos-Array Lite solution
• Data polling (measurements and alarms) from different • Carlo Gavazzi and other Inverter manufacturer
site devices transmitted to a remote web-server by • Carlo Gavazzi energy meters
means of Internet, using web-services to avoid firewall • Fat Spaniel Insight Platform portal
related issues • Fat Spaniel Solar Vision portal
• Use of “XML” (Extensible Markup Language) based com-
munication protocols granting high degree of flexibility, This architecture can manage up to:
allowing Eos-Gate to push data to multiple monitoring • 10 Eos-Array or Eos-Array Lite
portals, like the Carlo Gavazzi Web Portal and the Fat • 10 inverters
Spaniel® Web Portal • One energy meter
• 12 to 48VDC power supply
• Wall/DIN-rail mounting type
CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only. 7

8. Eos
Eos Array, Eos Array Lite and SCADA
The EOS comprehensive monitoring solution
Monitoring solution based on System Integrator’s own SCADA software
Eos-Array A...
RS485
The Carlo Gavazzi communication adaptors
Eos-Array B...
Eos-Array C... SIU-TCP2 (RS485 to TCP/IP)
SIU-PC2 (RS485 to RS232)
Eos-Array D... SIU-PB1 (RS485 to Profibus)
Eos-Array E... SCADA
RS485
Eos-Array F...
monday, october
kWh meter A...
Inverter group A...
Inverter group C...
Inverter group B...
• Architecture freedom • Free Eos-Array communication protocol available on
• Measurement features depending on Eos-Array selected request.
solution (either Eos-Array or Eos-Array Lite)
SIU-FO the solution in case of high electrical disturbed environment
This unit converts the standard Mod- • Fibre optic dual loop
Bus communication from RS485 communication (dual cascade
wired to fibre-optic type with the aim connection: partial communication
to increase the communication loss in case of one loop cut)
distance and provide an extremely • Fibre optic dual loop
high communication immunity in case communication (redundant
of combined centralised inverters, communication: no communication
Eos-Array devices and Eos-Box or loss in case of one loop cut)
other equivalent devices. • 10 to 24VDC/12 to 18VAC power
supply
Overall features • DIN-rail mounting type
• RS485 to glass fibre optic adaptor Fibre type and communication
• Dual way communication capability distances:
(wire to fibre optics and fibre optics • Single-mode and multimode glass
to wire) fibre optic compatibility
• Fibre optic single loop • Point to point distance up to 800m
communication (cascade with 50/125 µm multimode fibre
connection: communication loss in • Point to point distance up to 2000m
case of loop cut) with 62.5/125 µm multimode fibre
8 CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only.

9. Eos
Eos Array
The EOS comprehensive monitoring solution
Increase the security of your PV plant adding the specific Eos-Array antitheft
solution
Eos-Array, in addition to all its remarkable features can also
be provided with an antitheft system which allows you to
protect the whole PV installation, particularly when it is a
ground mounted type. This security system is based on a
cost effective plastic fibre optic technology which is easy to
install and doesn’t need expensive and specific fibre optic
mounting skills. The optical sensing part is represented by
VMU-AT which provides a theft alarm as soon as the plastic
fibre, in its sensing loop, is broken because of PV panel
removal attempt.
VMU-O.AT and VMU-AT overall features:
• Every Eos-Array (string-box) can manage up to 3 VMU-
AT modules in combination with VMU-O “AT” with one
relay output.
• The maximum allowed length of the fibre optic is
200m/VMU-AT.
• The theft status is managed by the VMU-M unit which
transmits the status to management system by means of
the RS485 communication port (either wired or glass
fibre optic based)
• VMU-AT sensor power supply from Eos-Array solution Fibre optic specific
• PFO22.1000: fibre optic roll of 1000m supplied cutter.
VMU-AT sensors in an Eos-Array context
VMU-AT
form 1 up to 3
CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only. 9

10. Eos
Retrofit solution
Adding a control solution is now easy!
Replacement of standard “positive” String box with switch disconnector,
fuse holders with same space Eos- surge and fuses protection with meas-
Array VMU-M and VMU-S solution urements of V-A-kW-kWh (VMU-S),
providing a cost effective control cell-air temperatures-irradiation-wind
without need of replacement of speed (VMU-P) and extended control fea-
existing string box. Full local variable tures (VMU-O).
measurement with data and local
switch disconnector trip alarm and
surge protection status logging for an
efficient and effective string and plant
control.
Existing String-Box
String box with switch disconnector, long fault searching time and the
surge and fuses protection. relevant missed production. 2
1
Benefits 1 DC switch disconnector
Apparently cheap solution, which 2 Surge arrester
becomes very expensive, in a large 3 Fuses
installation, because of the
3
Retrofitted String-Box
String-Box with switch disconnector, solution providing a cost effective
surge and fuses protection with added control without need of replacement of 4
measurement features. existing sting box.
Benefits 4 Power supply
Replacement of standard “positive” 5 Eos-Array or Eos-Array Lite
fuse holders with same space Eos-
Array VMU-M/ML and VMU-S/S0
5
Advanced String-Box
String box with switch disconnector, data, protection-trip alarms and surge
surge and fuses protection with protection status logging for an
measurements of V-A-kWkWh (VMU- efficient and effective string and plant
S), cell-air temperatures, irradiation, control.
wind speed (VMUP) and extended
control features (VMU-O). 6 Eos-Array
7 Antitheft
Benefits
Full local variable measurement with 6 7
10 CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only.

11. Eos
Eos Array and Eos Array Lite
Compare and refine your investment
The main differences between the two monitoring solutions
Modules Function and Features Eos Array LITE Eos Array
All Modular concept ✓ ✓
12 to 28VDC power supply ✓ ✓
RS485 communication port (max. 115.2 kbit/s) ✓ ✓
Programming of communication speed and address ✓ ✓
Local display with programming pushbutton ✓ ✓
Measurement of single string current from VMU-S only ✓ ✓
Alarm management on measured variables ✓ ✓
Local bus-configuration errors control ✓ ✓
VMU-M Current string monitoring ✓
Units Manager Power string monitoring ✓
String efficiency ✓
Event-logger: variables, functions and system alarms ✓
Data-logger: V, A, W, Wh, PV cell temperature, air temperature, irradiation ✓
First digital input (energy counting) ✓
First temperature input or temperature input: Pt100/Pt1000 (2 or 3 wire) ✓
Second digital input or temperature input: Pt100/Pt1000 (2 or 3 wire) ✓
Clock ✓
Local status monitoring by means of LED ✓
6-DGT data format for energy ✓
4-DGT data format for instantaneous variables ✓ ✓
Integrated fuse holder (not available for 30A string input) ✓ ✓
String voltage measurement up to 1000VDC (+/-) (0.5% RDG) ✓ ✓
VMU-S String current measurement up to 16ADC (0.5% RDG) ✓ ✓
String Control
unit String current measurement up to 30ADC (0.5% RDG) ✓ ✓
String power measurement (1.0% RDG) ✓
String energy measurement (class 1) ✓
Fuse blow alarm ✓
Fuse temperature alarm ✓ ✓
Wrong connection (reverse current or voltage) ✓ ✓
Isolation-enhancement unit which increases the string input to earth voltage
VMU-1
from 800VDC to 1000VDC
✓ ✓
Irradiation sensor input: max. 120mV or max. 20mA DC ✓ ✓
VMU-P First temperature probe input: Pt100/Pt1000 (2 or 3-wire) ✓ ✓
Environment Short/open circuit on probe inputs ✓ ✓
Measuring unit Second temperature probe input: Pt100/Pt1000 (2 or 3-wire) ✓
Wind speed sensor measuring input ✓
First relay output activated by local alarm ✓ ✓
First relay output managed as remote command ✓
VMU-O Second relay output activated by local alarm ✓
Inputs/Outputs
unit Second relay output managed as remote command ✓
First digital input ✓
Second digital input ✓
Antitheft control based on fibre optic ✓
VMU-AT
Antitheft control
Up to 3 fibre optic sensors (200m each loop) ✓
VMU-O-AT I/O unit (3 digital inputs/one relay output) for VMU-AT sensor ✓
CARLO GAVAZZI Automation Components. Specifications are subject to change without notice. Illustrations are for example only. 11

12. OUR SALES NETWORK IN EUROPE
AUSTRIA - Carlo Gavazzi GmbH FRANCE - Carlo Gavazzi Sarl ITALY - Carlo Gavazzi SpA SPAIN - Carlo Gavazzi SA
Ketzergasse 374, A-1230 Wien Zac de Paris Nord II, 69, rue de la Belle Via Milano 13, I-20020 Lainate Avda. Iparraguirre, 80-82,
Tel: +43 1 888 4112 Etoile, F-95956 Roissy CDG Cedex Tel: +39 02 931 761 E-48940 Leioa (Bizkaia)
Fax: +43 1 889 10 53 Tel: +33 1 49 38 98 60 Fax: +39 02 931 763 01 Tel: +34 94 480 4037
office@carlogavazzi.at Fax: +33 1 48 63 27 43 info@gavazziacbu.it Fax: +34 94 480 10 61
french.team@carlogavazzi.fr gavazzi@gavazzi.es
BELGIUM - Carlo Gavazzi NV/SA NETHERLANDS - Carlo Gavazzi BV
Schaarbeeklei 213/3, B-1800 Vilvoorde GERMANY - Carlo Gavazzi GmbH Wijkermeerweg 23, SWEDEN - Carlo Gavazzi AB
Tel: +32 2 257 4120 Pfnorstr. 10-14 NL-1948 NT Beverwijk V:a Kyrkogatan 1,
Fax: +32 2 257 41 25 D-64293 Darmstadt Tel: +31 251 22 9345 S-652 24 Karlstad
sales@carlogavazzi.be Tel: +49 6151 81000 Fax: +31 251 22 60 55 Tel: +46 54 85 1125
Fax: +49 6151 81 00 40 info@carlogavazzi.nl Fax: +46 54 85 11 77
DENMARK - Carlo Gavazzi Handel A/S info@gavazzi.de info@carlogavazzi.se
Over Hadstenvej 40, DK-8370 Hadsten NORWAY - Carlo Gavazzi AS
Tel: +45 89 60 6100 GREAT BRITAIN - Carlo Gavazzi UK Ltd Melkeveien 13, N-3919 Porsgrunn SWITZERLAND - Carlo Gavazzi AG
Fax: +45 86 98 15 30 7 Springlakes Industrial Estate, Tel: +47 35 93 0800 Verkauf Schweiz/Vente Suisse
handel@gavazzi.dk Deadbrook Lane, Hants GU12 4UH, Fax: +47 35 93 08 01 Sumpfstrasse 6312,
GB-Aldershot gavazzi@carlogavazzi.no CH-632 Steinhausen
FINLAND - Carlo Gavazzi OY AB Tel: +44 1 252 339600 Tel: +41 41 747 4535
Petaksentie 2-4, FI-00661 Helsinki Fax: +44 1 252 326 799 PORTUGAL - Carlo Gavazzi Lda Fax: +41 41 740 45 40
Tel: +358 9 756 2000 sales@carlogavazzi.co.uk Rua dos Jerónimos 38-B, info@carlogavazzi.ch
Fax: +358 9 756 20010 P-1400-212 Lisboa
myynti@carlogavazzi.fi Tel: +351 21 361 7060
Fax: +351 21 362 13 73
carlogavazzi@carlogavazzi.pt
OUR SALES NETWORK IN NORTH AMERICA
USA - Carlo Gavazzi Inc. CANADA - Carlo Gavazzi Inc. MEXICO - Carlo Gavazzi Mexico S.A. de
750 Hastings Lane, 2660 Meadowvale Boulevard, C.V.
USA-Buffalo Grove, IL 60089, CDN-Mississauga Ontario L5N 6M6, Calle La Montaña no. 28, Fracc. Los
Tel: +1 847 465 6100 Tel: +1 905 542 0979 Pastores
Fax: +1 847 465 7373 Fax: +1 905 542 22 48 Naucalpan de Juárez, EDOMEX CP 53340
sales@carlogavazzi.com gavazzi@carlogavazzi.com Tel & Fax: +52.55.5373.7042
mexicosales@carlogavazzi.com
OUR SALES NETWORK IN ASIA AND PACIFIC
SINGAPORE - Carlo Gavazzi Automation MALAYSIA - Carlo Gavazzi Automation CHINA - Carlo Gavazzi Automation HONG KONG - Carlo Gavazzi
Singapore Pte. Ltd. (M) SDN. BHD. (China) Co. Ltd. Automation Hong Kong Ltd.
61 Tai Seng Avenue D12-06-G, Block D12, Unit 2308, 23/F., Unit 3 12/F Crown Industrial Bldg.,
#05-06 UE Print Media Hub Pusat Perdagangan Dana 1, News Building, Block 1,1002 106 How Ming St., Kwun Tong,
Singapore 534167 Jalan PJU 1A/46, 47301 Petaling Jaya, Middle Shennan Zhong Road, Kowloon, Hong Kong
Tel: +65 67 466 990 Selangor, Malaysia. Shenzhen, China Tel: +852 23041228
Fax: +65 67 461 980 Tel: +60 3 7842 7299 Tel: +86 755 83699500 Fax: +852 23443689
Fax: +60 3 7842 7399 Fax: +86 755 83699300
OUR COMPETENCE CENTRES AND PRODUCTION SITES
Carlo Gavazzi Industri A/S Carlo Gavazzi Ltd Carlo Gavazzi Controls SpA Uab Carlo Gavazzi Industri Kaunas
Hadsten - DENMARK Zejtun - MALTA Belluno - ITALY Kaunas - LITHUANIA
Carlo Gavazzi Automation
(Kunshan) Co., Ltd.
Kunshan - CHINA
Specifications are subject to change without notice. Illustrations are for example only.
HEADQUARTERS
Carlo Gavazzi Automation SpA
Via Milano, 13 - I-20020
Lainate (MI) - ITALY
Tel: +39 02 931 761
info@gavazziautomation.com
8028183 BRO ENG 04/11
CARLO GAVAZZI
Automation Components
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