Sunny Boy SWR 2100U
Sunny Boy
SWR 2100U
Installation and User Manual
Issue 1.0
Grid Tied String Inverter for Photovoltaic Systems
SB2100U-11:SE0506
Sunny Boy 2100U
Installation and User Manual
Document Number
Rev.
No.
Date
By
Description
SB2100U-11:SE0506
1.0
Jan, 2006
JP
First US Version
SB2100U
-2-
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
IMPORTANT SAFETY INSTRUCTIONS
This manual contains important instructions that shall be followed during installation and maintenance of the Sunny Boy.
To reduce the risk of electrical shock, and to ensure the safe installation and
operation of the Sunny Boy, the following safety symbols have been placed
throughout this technical description to indicate dangerous conditions and important safety instructions.
WARNING: This indicates a fact or feature very important for the safety of
the user and / or which can cause a serious hardware defect if not applied
appropriately.
Use extreme caution when performing this task.
NOTE: This indicates a feature that is important either for optimal and
comfortable usage or optimal operation of the system.
Follow instructions closely.
EXAMPLE: This indicates an example.
SAVE THESE INSTRUCTIONS
SB2100U
-3-
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
IMPORTANT SAFETY INSTRUCTIONS
•
All electrical installations shall be done in accordance with the local and
national electrical codes ANSI/NFPA 70.
•
The Sunny Boy contains no user serviceable parts. Please return the unit
to an SMA authorized Service Center (see page 55) for maintenance.
•
Before installing or using the Sunny Boy, please read all instructions and
cautionary markings in the technical description and on the Sunny Boy
and the PV-array.
•
Connecting the Sunny Boy to the electrical utility grid must only be done
after receiving prior approval from the utility company and performed only
by qualified personnel.
•
Completely cover the surface of all PV-arrays with opaque (dark) material
before wiring them. PV arrays produce electrical energy when exposed to
light and could create a hazardous condition.
•
On top of the device you can find the heat sink of the Sunny Boy with potential temperatures of over 175°F (80 °C). To reduce the risk of burns, do
not touch.
SAVE THESE INSTRUCTIONS
SB2100U
-4-
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Table of Contents
1
Introduction .................................................................................................................6
2
Installation ...................................................................................................................7
2.1
What Must Be Done in Case of Transport Damages?.......................................7
2.2
Placement of the Sunny Boy ..............................................................................8
2.3
Electric Connection...........................................................................................12
2.3.1
Preparation of the electric connection .........................................................14
2.3.2
Connection to Electrical Utility Grid .............................................................16
3
Commissioning..........................................................................................................20
4
Operation and Failure Indication LEDs.....................................................................23
4.1
Operation Indicator ...........................................................................................26
4.2
Ground Fault Indicator......................................................................................29
4.3
Failure Indication ..............................................................................................30
4.4
Opening and closing of the Sunny Boy ............................................................35
4.5
Upgrading or modification of the Sunny Boy interface.....................................38
4.6
Measuring Channels and Messages................................................................40
4.7
Measurement Precision....................................................................................42
5
Troubleshooting ........................................................................................................43
6
Warranty Regulations and Liability ...........................................................................45
7
Technical Data ..........................................................................................................47
7.1.1
8
Minimum MPP-voltage of the PV panel.......................................................48
Appendix ...................................................................................................................55
SB2100U
-5-
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
1 Introduction
The SMA Sunny Boy is a string inverter for grid tied operation. With this manual the
Sunny Boy can be installed and operated in a safe way. This installer’s guide is used
as reference for the commissioning and as guideline on how to use all functions of
the inverter optimally and how you can extend your existing PV-plant.
Supplementary grid feeding includes the conversion of the DC-voltage from the PVpanel to grid compatible AC-voltage with so-called ”inverters“ and the subsequent
connection to the electricity grid in the house distribution.
Here the electricity from the PV-modules provides all consumers with electric power
(household devices, lights etc.). In case that not enough power is produced the additionally necessary power is obtained from the grid. In case that there is a surplus of
power, this surplus is fed into the local grid and is therefore available for other consumers. This way every single kilowatt-hour is utilized and the electricity company’s
power systems are relieved. In the most simple case a PV-plant therefore consists of
two basic components: the PV-panel and the inverter.
Fig. 1.1: Grid tied string inverter application
For a more detailed technical description of the Sunny Boy and its functionality
please read “Sunny Boy 2100U Technical Description”.
SB2100U
-6-
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
2 Installation
WARNING: Before installing the Sunny Boy, read all instructions and cautionary markings in the technical description and on the Sunny Boy and
the photovoltaic array.
WARNING: All electrical installations shall be done in accordance with all
local
electrical
codes
and
the
National
Electrical
Code
(NEC),
ANSI/NFPA 70.
WARNING: Connecting the Sunny Boy to the electrical utility grid must
only be done after receiving prior approval from the utility company and
performed only by qualified personnel.
2.1 What Must Be Done in Case of Transport Damages?
The Sunny Boy inverters are thoroughly checked before they are shipped. Even
though they are delivered in a sturdy packaging (which can be recycled) the inverters
can be damaged which is the forwarding company’s fault in most cases.
Please inspect your inverter thoroughly after it is delivered. If any damages can be
detected on the packaging that could lead to the conclusion that the contents is damaged or if you detect that the inverter is damaged please immediately notify the forwarding company.
SMA or your local supplier can help you in this matter. In any case the declaration of
transport damage must be made within 6 days upon receipt of the product and must
be stated in writing directly to the forwarding agent. If it is necessary to return the inverter to the manufacturer please use the packaging the inverter was sent in.
SB2100U
-7-
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
2.2 Placement of the Sunny Boy
The Sunny Boy is a sophisticated electronic device and is therefore sensitive to humidity within the case.
NOTE: If the Sunny Boy is placed outside, the humidity during the installation should be as low as possible - pay special attention that it does not
rain. If moisture is enclosed in the case it will eventually condense within
the device which could damage the electronics.
A suitable position must be found for the inverter while the PV-plant is designed. In
the following you will find a summary of the most important criteria.
Criteria for Installation Location:
•
Due to the high protection class (NEMA 4X) of the enclosure the installation is
possible indoors as well as outdoors.
•
If possible, do not expose the inverter to rain despite NEMA 4X.
•
Keep the DC-cabling from the solar panel to the inverter as short as possible.
•
Avoid installation in the living area because a slight noise emission is possible.
•
Avoid mounting on resonant materials (e. g. thin wooden panels, plaster panels,
etc.). The Sunny Boy tends to slightly vibrate when under load.
•
Provide accessibility for installation and later service.
•
Installation at eye-level allows easy reading of the operating LEDs or the Sunny
Display.
SB2100U
-8-
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
CAUTION: Please note the following points in any case:
•
The mounting background must be firm.
•
The ambient temperature must be between -13 °F and +140 °F.
•
The National Electrical Code (NEC) requires that the inverter be connected to a dedicated circuit and no other outlets or device may be
connected to this circuit. See NEC Section 690-64(b)(1). The NEC
also impose limitations on the size of the inverter and the manner in
with it is connected to the utility grid. See NEC Section 690-64(b)(2).
•
Do not expose the string inverter to direct sunlight (if necessary install a shading roof).
•
A minimum distance of 8 inch (200 mm) must be clear above the inverter for ventilation, i. e. no cupboards, ceiling, etc.
•
Free air circulation around the case must not be obstructed.
•
If you are installing the Sunny Boy in a cabinet or closet etc., the air
circulation must be sufficient for heat dissipation - provide external
ventilation.
•
The heat sink can reach a temperature of more than 175 oF.
•
Check existing electrical installations or plumbing prior to drilling
holes into the wall.
•
Provide a correct position of the inverter - see below:
mount straight or tilted to the back
never mount tilted to front
Fig. 2.1: How to mount the Sunny Boy
SB2100U
-9-
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
The Sunny Boy 2100U inverter is mounted on the back side with the three metal
straps.
Fig. 2.2: Drilling Template
SB2100U
- 10 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Mounting Preparation
The Sunny Boy is mounted on its back side with the 3 metal straps. For that 3 screws
and 3 according dowels (wall anchors) are necessary. The screws and dowels are
not included. We recommend 6 mm screws and 8 mm dowels.
NOTE: For outside mounting use stainless steel screws. Use a plastic
washer in order to avoid scratching the paint.
Fig. 2.3: Side View of Wall Mounting
Metal straps for mounting:
The top straps take the load, the bottom is screwed
down in order to prevent the tilting off the wall.
Mounting to Wall
•
Mark the holes with the drilling template.
•
Drill the holes (and put in the wall anchors), put in the screws of both top holes
and screw them in until ca. 4 mm are sticking out.
•
Hang the inverter into the two top screws.
•
Fasten the bottom screw. This will prevent lifting of the inverter case.
•
Check the mounting of the inverter.
SB2100U
- 11 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
2.3 Wiring
The wiring of the Sunny Boy can be done once the device is correctly mounted.
Fig. 2.4: Simplified Electrical Wiring Diagram of a PV-System
GFDI-Fuse
DC- Connection
CommunicationConnection
AC- Connection
Fig. 2.5: Underside view of the Sunny Boy
SB2100U
- 12 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
WARNING: All electrical installations shall be done in accordance with all
local electrical codes and the National Electrical Code (NEC), ANSI/NFPA
70. Use no. 14 AWG, minimum 90 °C (194 °F), copper wire for all connections with the Sunny Boy. Voltage drop and other considerations may dictate that larger wire sizes be used.
The AC-grid and the input from the DC disconnect enclosure are connected to the
inverter inside the case. Cables with wire sizes up to 10 AWG (5.26 mm2) are accepted by the AC- and DC-terminals on the printed circuit board.
WARNING: The connection of the Sunny Boy to the DC-voltage from the
PV string and the AC-voltage of the utility must be done in the order described here. This ensures that the disconnecting of contacts as well as
hazardous voltages during the installation are avoided.
•
Connect the Sunny Boy to the electricity grid
•
Connect the PV strings to the DC disconnect enclosure
•
Connect the DC disconnect enclosure to the Sunny Boy
•
Connect the utility by switching all breakers ON
To disconnect the Sunny Boy from the system, first turn all breakers and switches
OFF. Then disconnect the various conductors in the reverse order listed above.
SB2100U
- 13 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
2.3.1 Wiring Preparation
Remove all screws (1 - 4, size M5 (see Fig. 2.6)) and take off the lid. When removing
these screws, be sure to save the special lock washers and reinstall them to properly
ground the front panel.
4
1
2
3
Fig. 2.6: Front View of the Sunny Boy 2100U
You now have the opened Sunny Boy in front of you (see Fig. 2.7) and can see the
position of components and clamps relevant for you. You will find:
•
The internal grid fuse
WARNING: A defective grid fuse has to be replaced only with same types
and rating of fuse in order for continued protection against risk of fire. The
type is Littelfuse 314015 15 AMP 250V AC.
•
The control system board with the socket for the Piggy Back board for the
communication
•
Terminal for the AC-connection
•
Terminals for the DC-connection
SB2100U
- 14 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
AC-Connection
Grid Fuse
Resistors
Place for Piggy Back
DC-Connection
Fig. 2.7: Interior of the Sunny Boy 2100U
SB2100U
- 15 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
2.3.2 Connecting to the Utility Grid
The Sunny Boy must be connected to the grid with 3 cables
•
With two phases (L1) and (L2) and one equipment-grounding conductor(Protective earth (PE)).
WARNING: Make sure the main 240 V breaker in the main utility breaker
box is switched OFF before you connect the AC terminal block.
The grid impedance value at the connection point should be as low as possible to
avoid an increase of the AC-voltage to non-permissible values while the Sunny Boy
feeds to the grid. This also results in a higher system efficiency.
EXAMPLE: The impedance is the sum of the electricity grid impedance at
house distribution and all impedance values of cables and clamping
points.
NB: Impedance values are
•
ca. 0.44 Ω for a 70 feet (16.4 m) cable with a cross section of
AWG 14
•
ca. 0.40 Ω for a 100 feet (33 m) cable with a cross section of
AWG 12
•
ca. 0.43 Ω for a 175 feet (57 m) cable with a cross section of
AWG 10
The total impedance of the grid plus the interconnecting ac cables and connections
must be less than 1.25 Ohms.
SB2100U
- 16 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
L2
L1
Ground
AC conduit and wiring
Fig. 2.8: AC Connection Terminals
•
Connect the main 240 Volt AC-breaker box to the Sunny Boy by a 1/2“ conduit.
•
Insert the conduit fitting in the very right opening of the Sunny Boy. Fasten the
fitting on the inside of the Sunny Boy with the nut.
•
Pull the wires through the conduit into the interior of the Sunny Boy.
•
Connect the wire L1 to the terminal labeled L in the Sunny Boy (see Fig. 2.8).
•
Connect the wire L2 to the terminal labeled N in the Sunny Boy.
•
Connect the equipment-grounding conductor to the terminal labeled PE in the
Sunny Boy.
•
Torque wires with torque of 35 in-lb.
•
Ensure all connections are correctly wired and properly torqued.
SB2100U
- 17 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Connection of the PV-Array to the DC Disconnect
WARNING: Completely cover the surface of all PV-arrays with opaque (dark)
material before wiring them. PV-arrays produce electrical energy when exposed to light and could create a hazardous condition.
Depending on the type of PV-module used it is possible to connect one single string
or several parallel strings. Therefore there are three connections for both the + and
the - pole. Within the device these connections are connected in parallel each.
WARNING: Before connecting the connectors of the PV-panel to the DC
disconnect enclosure check the correct polarity and admissible PV-panel
voltage between the + and the - cable connectors of the PV-panel.
The PV-panel open circuit voltage must be below or at most equal to
600 V DC (VPV ≤ 600 V DC) under all conditions. Please read chapter 7.1.1
SB2100U
- 18 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Connection of the Sunny Boy to the DC Disconnect
•
Install the DC conduit from the DC disconnect enclosure to the Sunny Boy.
•
Insert the conduit fitting in the left opening of the Sunny Boy. Fasten the fitting
on the inside of the Sunny Boy with the nut. Do the same at the DC disconnect.
•
Ensure all circuit breakers in the DC disconnect enclosure are in the OFFposition.
•
Route the wires from the DC disconnect enclosure through the conduit and into
the Sunny Boy.
•
Connect the positive (+) wire to the terminal block labeled with (+), see Fig. 2.9.
•
Connect the negative(-) wire to the terminal block labeled with (-), see Fig. 2.9.
•
Torque wires with torque of 35 in-lb .
•
Ensure all connections are correctly wired and properly torqued.
Positive plug
Negative plug
DC- conduit and wiring
Fig. 2.9: DC Connection Terminal
SB2100U
- 19 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
3 Commissioning
Safety Notice
NOTE: Make sure that nothing is on top of the heat sink of the Sunny Boy
when it is running.
WARNING: The heat sink can get very hot - i. e. over 175 °F (80 °C).
NOTE: Make sure that all fittings are sealed and all openings on the bottom
are closed with the seals.
•
When putting the lid on make sure the seal in the inner side of the lid is
placed correctly. When screwing the inner screws make sure that the
thread in the Sunny Boy case is not damaged by tilted screws. Under
certain conditions the enclosure type NEMA 4X cannot be guaranteed
any more. When mounting the Sunny Boy outside moisture can get into
the device and damage the electronics.
WARNING: Make sure that the lid is closed before applying power to
the Sunny Boy.
•
SB2100U
Ensure that all AC and DC wiring is correct.
- 20 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Powering Up for the First Time
Please follow the order described when commissioning the device.
Fig. 3.1: ” provides a sequence chart for commissioning.
•
Switch the DC-breaker ON again so that the Sunny Boy is supplied with the DCvoltage.
•
The Sunny Boy switches to fully automatic normal operation. The green LED is
blinking. Should the red LED still be on the GFDI-fuse is defective and has to be
replaced or there is a PV array ground-fault. (You will find a description of the
correct type in chapter 4.2.)
Fig. 3.1: Commissioning Flowchart
SB2100U
- 21 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
If the input voltage is high enough the Sunny Boy should start to feed inverted PVpower fully automatically to the grid, once enough power is coming from the PVmodules.
The design of the Sunny Boy makes sure that its internal consumption is as low as
possible. The Sunny Boy requires a maximum 7 W internal consumption which it
takes from the PV-panel.
If you measure the voltage of the PV-modules you must keep in mind the inverter’s
internal consumption that will have an effect on your measurement with lower solar
radiation. The open circuit voltage of the PV-panel will therefore not be displayed.
The internal consumption is negligible for the voltage measurement with higher solar
radiation.
The operating state of the Sunny Boy will be indicated with three LEDs integrated
into the lid. The meaning of the LEDs will be explained in chapter 4, “LED”.
SB2100U
- 22 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
4 LED Indicators
The inverter normally operates automatically, without user interaction and without any
maintenance. The inverter automatically turns itself off when a grid feeding is not
possible (e. g. at night).
The Sunny Boy automatically starts its grid feeding the next day once the solar radiation is high enough. The inverter goes to standby mode if the radiation and the resulting electric input energy is too low and is therefore always ready for operation.
Each time the Sunny Boy starts up it runs a number of self test and safety procedures which the user does not notice.
The user can obtain the inverter’s operating status from the 3 integrated LEDs on the
lid (see Table 4.1: Operation indication overview).
The green LED “Operation” describes the current operation of the Sunny Boy, see
chapter 4.1 “Operation Indicator”.
The red LED warns the user that the GFDI-fuse is defective. A description of this
situation and what has to be done in that case is given in chapter 4.2.
The yellow LED ”Failure“ indicates an internal or external failure that keeps the inverter from feeding the grid. The specific causes for this and how to avoid them are
described in chapter 4.3 “Fault Indication”.
The red and yellow LED combined indicate that the internal Ground Fault Detector
and Interupter (GFDI) has detected a ground fault in the PV panel. A description of
this situation and what has to be done in that case is given in chapter 4.2.
SB2100U
- 23 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Fig. 4.1: Front view of Sunny Boy 2100U
Description of the symbols used in the following section:
LED off
LED on once per second
LED on three times per second
LED on with short interruptions (75% on, 25% off)
LED on
Not important
SB2100U
- 24 -
SMA America, Inc.
Sunny Boy 2100U
LED indicator
Installation and User Manual
Operating condition
Description
green:
red:
yellow:
standby (night)
input voltage < 120 V
green:
red:
yellow:
initialization
input voltage: 120 V ... 240 V
green:
red:
yellow:
stop
changing operating condition or manually initiated condition
green:
red:
yellow:
waiting,
checking grid
starting conditions are being checked
green:
red:
yellow:
feeding grid
MPP or constant voltage mode
normal operation
green:
red:
yellow:
derating mode
Reduction of power fed to the grid due to increased temperature of the heat sink
green:
red:
yellow:
insulation failure
ground fault of the PV-panels
see chapter 4.2
green:
red:
yellow:
failure
GFDI fuse is defective
see chapter 4.2
green:
red:
yellow:
failure
internal or external failure, exact description
depending on blink code
see chapter 4.3
green:
red:
yellow:
Consistent Failure
A failure of the utility has occurred
Table 4.1: Operation indication overview
SB2100U
- 25 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
4.1 Operation Indicator
Standby (night)
all LEDs are off
The
Sunny
Boy
is
in
“Standby”
mode.
The
input
voltage
is
too
low
(VPV < 120 V) for supplying the Sunny Boy control system with enough power.
Initialization
all LEDs are on
The Sunny Boy control system is initializing.
The string voltage to the inverter is between approx. 120 V and 240 V. The supply is sufficient for the system control and not quite sufficient for feeding to the grid. Data transmission is not possible.
NOTE: In some seldom cases (bad weather, low solar radiation) the LEDs
can go on all at once and off again. This “blinking” results from the fact that
the incoming radiation is not high enough for the Sunny Boy to keep it stable. Note: This is not a malfunction!
SB2100U
- 26 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Stop
Green LED blinks (3 times per second)
Red LED off
Yellow LED off
The inverter has stopped operation, among other tasks the measurement electronics is
calibrated. Subsequent condition is “Waiting”.
“Stop” condition can be initiated by the user with the Sunny Boy Control or the program
Sunny Data. The Sunny Boy remains in this condition until set to “MPP-Operation” or
“Constant Voltage Operation”.
Waiting, Grid Monitoring
Green LED blinks (once per second)
Red LED off
Yellow LED off
The Sunny Boy is checking the utility concerning its suitability for feeding electricity (starting voltage, starting time) and begins to monitoring.
NOTE: If the Sunny Boy fails to connect to the utility 3 times in a row, it will
wait for 10 minutes before the next attempt.
SB2100U
- 27 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Operation
Green LED on
Red LED off
Yellow LED off all LEDs are off
The Sunny Boy is feeding the local electricity grid, either in “MPP“ or in „Constant - Voltage“ operation.
•
„MPP“-operation (default setting):
The Sunny Boy pushes the voltage from the PV-modules to the voltage with the
maximum output power.
•
„Constant Voltage“-operation
The voltage from the PV-modules can be set to a fixed value. This value is transmitted to the Sunny Boy with the Sunny Boy Control or with the Sunny Data software
(The parameter is “V-Konst“).
Derating
Green LED blinks (75 % ON, 25 % OFF)
Red LED off
Yellow LED off
The Sunny Boy is feeding the local electricity grid, either in “MPP“ or in „Constant - Voltage“ operation. Additionally it is in the derating mode due to increased temperature of the
heat sink.
SB2100U
- 28 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
4.2 Ground Fault Indicator
Isolation Fault
Green LED off
Red LED on
Yellow LED on
This is the result of a ground fault of the PV panel. The inverter then has to indicate this
condition and disconnect from the grid. The inverter has to be reset manually, it cannot
restart automatically.
CAUTION: The PV-array must be inspected for ground faults.
Please have a look at chapter 3 “Powering Up for the First Time”.
If the ground fault of the PV panel is removed, the inverter switches from “permanent device disable” to “GFDI Fuse open” failure and the yellow LED is off.
The red LED is still on. Now the following must be done:
Open GFDI Fuse
Green LED off
Red LED on
Yellow LED off
The message “GFDI Fuse open” is displayed. If an intact fuse is then installed, the inverter restarts operation. The “GFDI Fuse open” failure persists in case the fuse is defective.
WARNING: For continued protection against risk of fire replace only with
same types and rating of fuse. The type is KLKD 1 AMP 600 V AC / DC.
SB2100U
- 29 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
4.3 Fault Indication
Consistent Fault
Operation
Earth Fault
Failure
The yellow fault LED is permanently on.
This is a failure of the utility monitoring or the automatic disconnection device MSD. The
Sunny Boy has detected a failure in the disconnection device and has suppressed the
utility interaction on startup. The Sunny Boy must be checked by service personnel and
can only be put back to operation after a thorough checkup.
SB2100U
- 30 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Blinking code 2: Grid Failure
Operation
Earth Fault
Failure
5s
3s
1s
3x
1s
The yellow failure indication LED is on for 5 seconds, is out for 3 seconds and then blinks
twice. The code is sent three times.
If the failure persists the indication blinking code is repeated.
The Sunny Boy is indicating a failure which has one of the following reasons:
•
Low grid voltage ( < VAC min see table 9.2)
•
High grid voltage ( > VAC max see table 9.2)
•
Low grid frequency (< fAC min see table 9.2)
•
High grid frequency ( > fAC max see table 9.2)
•
Drastic grid frequency change
Check the utility (check the function of other electric consumers) and check the fuse of
the mains connector to the Sunny Boy.
NOTE: Have the grid connection to the Sunny Boy checked by a qualified
electrician. Check the correct connection and the fuse in the Sunny Boy.
WARNING: Do not forget to disconnect the Sunny Boy from the grid. Before opening the device read chapter 4.4.
SB2100U
- 31 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Blinking Code 3: Grid Impedance Too High (if the optional Grid Impedance Measurement is active)
Operation
Earth Fault
Failure
5s
3s
1s 1s
3x
1s
The yellow failure LED is activated for 5 seconds, remains dark for 3 seconds and then
blinks three times. The code is sent three times.
If the failure persists the indication begins once again.
The Sunny Boy has detected a failure based on the utility impedance values. The criteria
for the grid impedance is described in the section ”Islanding protection“ in the technical
description of the Sunny Boy.
A too high utility impedance can be the reason should this failure occur very often. The
impedance can be checked with the Sunny Boy Control or Sunny Data. This failure can
normally be avoided by increasing the cross section of the AC-cabling.
SB2100U
- 32 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Blinking code 4: Input Voltage (PV-Array) Too High
Operation
Earth Fault
Failure
5s
3s
1s
1s
3x
1s
1s
The yellow failure indication LED is activated for 5 seconds, is out for 3 seconds and then
blinks four times. The code is sent three times.
If the failure persists the indication is repeated.
The input voltage is too high. The PV-panels are generating a voltage higher than the
permissible specified voltage!
WARNING: Disconnect the PV-Panels from the Sunny Boy immediately.
Too high input voltage can destroy the Sunny Boy.
Have the circuits of your PV-panels checked.
SB2100U
- 33 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Blinking code 5: Device Failure
Operation
Earth Fault
Failure
5s
3s
1s
1s
1s
3x
1s 1s
1s
The yellow failure indication LED is activated for 5 seconds, is out for 3 seconds and then
blinks five times. The code is sent three times.
If the failure persists the indication is repeated.
The Sunny Boy is in a condition that makes it impossible to return to normal operation
and is most likely defective.
NOTE: The Sunny Boy has to be checked by a qualified technician.
SB2100U
- 34 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
4.4 Opening and closing of the Sunny Boy
Normally the Sunny Boy operates fully automatically and maintenance-free. Should the
device nonetheless be opened e.g. for
•
upgrading or modification of the Sunny Boy interface
•
control of internal AC-fuse
follow the instructions given below.
Opening of the Sunny Boy
WARNING: These servicing instructions are for use by qualified personnel
only. To reduce the risk of electric shock, do not perform any sevicing
other than specified in this technical description unless you are qualified to
do so.
When working on the Sunny Boy follow the instructions below:
1. Separate the Sunny Boy from the grid by opening the 240 Volt AC-circuit breaker in
the main fusebox.
WARNING: Make sure the main 240V breaker in the main utility breaker
box is switched OFF.
2. Switch the DC-breaker in the DC disconnect enclosure OFF.
WARNING: Wait for at least 5 minutes until internal voltage has discharged after shutting down the DC-voltage on the Sunny Boy.
SB2100U
- 35 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
3. Take off the lid by removing screws 1 - 4 (see Fig. 2.6) on the lid (M5).
You now have the opened Sunny Boy in front of you (see Fig. 2.7) and can see the position of components and clamps relevant for you. You will find:
•
The control system board with the socket for the piggy back board for the communication. To install the new communication components read chapter 4.5.
SB2100U
- 36 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Closing of the Sunny Boy
•
When putting the lid on make sure the seal in the inner side of the lid is placed correctly. When screwing the inner screws make sure that the thread in the Sunny Boy
case is not damaged by tilted screws. Under certain conditions the enclosure type
NEMA 4X cannot be guaranteed any more. When mounting the Sunny Boy outside
moisture can get into the device and damage the electronics.
WARNING: Make sure that the lid of the Sunny Boy is screwed tightly to
the case before you start operating the Sunny Boy.
•
Connect the PV-panel by switching ON the DC-breaker in the DC disconnect enclosure.
•
Connect the grid by switching ON the main 240 Volt breaker.
With sufficient power from the PV-panel the Sunny Boy should now start automatically
feeding the grid.
SB2100U
- 37 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
4.5 Upgrading or Modification of the Sunny Boy Interface
The Sunny Boy is prepared for data transmission. By simply plugging on a piggy back
module it supports transmission via RS232 or RS485 interfaces.
In order to install a new interface in the Sunny Boy a corresponding piggy back module
has to be installed on the system control board.
WARNING: Follow all relevant instructions in chapters 2.3, “Wiring”, 3,
“Commissioning”, 4.4, “Opening and closing of the Sunny Boy” in the
Sunny Boy manual.
WARNING: The Sunny Boy works with high voltages externally and internally which can cause considerable harm to people. Only a qualified electrician may work on the device, especially open it!
While upgrading the Sunny Boy interface the operator can get into touch both with electronic components and components carrying lethal voltage. Faulty upgrading can lead to
damage at the device and danger to people by electric voltage.
Therefore the device may only be upgraded by qualified personnel or the SMA service.
WARNING: Only work on the Sunny Boy when it is disconnected from the
grid and is sufficiently discharged!
Follow ESD protection countermeasures when modifying the Sunny Boy:
Electronic components are sensitive to electrostatic discharge. To protect them you have
to be on the same electric potential. Discharge the electrostatic charge by touching the
grounded case before touching an electronic component, otherwise you run a great risk
in destroying your electronics.
SB2100U
- 38 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Open the device as described in chapter 4.4.
Remove the piggy back that is installed on the system control board.
•
Only for installation of an RS232 or RS485 board:
−
Remove the light blue resistors (see Fig. 2.7) on the system control board by
cutting them out with a wire cutter.
Connect the cables for RS232 or RS485. Data cables are lead outside through the free
opening at the bottom of the Sunny Boy. Please insert the PG16 screws into this opening
and fasten them.
•
Push the communication cable through the contact unit of the PG cable fitting.
•
Connect the terminal cables to the terminal strip of the system control board and
check whether they are firmly fastened.
•
Fasten the cable seal of the PG16 cable fitting.
•
If you have installed RS232 cabling please close the opening in the bottom with the
seal included in the packing list.
•
Close the device as described in chapter 4.4.
SB2100U
- 39 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
4.6 Measuring Channels and Messages
The communication supports a number of measuring channels and messages from the
Sunny Boy inverters.
The following abbreviations are used:
BFR
Betriebsführungsrechner (Sequential Control System)
SRR
Stromregelungsrechner (Current Control System)
Measuring Channels
Vpv
PV-input voltage
Vpv-Setpoint
PV-desired input voltage of the Vpv-control
Iac
current to the grid
Vac
grid voltage
Fac
grid frequency
Pac
power fed to grid
Zac
grid impedance
Vpv-_PE
PV-voltage to earth
Ipv
current from PV-panels
E-Total
energy yield
h-Total
total operation hours
Power On
total system start ups
Serial Number
Sunny Boy serial number
Mode
operating mode
Error
failure description for mode “disturbance“
Mode Messages
Stop
manual system stop
Offset
offset calibration of the electronics
Waiting
grid switching-on conditions are not fulfilled (yet)
Grid monitoring
checking grid (grid impedance)
MPP-Search
PV voltage is determined and set
MPP
Sunny Boy is in MPP mode
SB2100U
- 40 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
V-Const
Sunny Boy is in constant voltage MPP mode
Derating
reduction of the grid feeding power
Disturbance
failure
Error messages
F-Bfr-Srr
communication between micro-controllers is failing
F-EEPROM
EEPROM cannot be read or written on
F-EEPROM dBh
EEPROM cannot be read or written on
F-Fac-Bfr
BFR-frequency measurement - value out of tolerable range
F-Fac-Srr
SSR-frequency measurement - value out of tolerable range
F-dZac-Bfr
BFR-impedance measurement - value out of tolerable range
F-dZac-Srr
SSR-impedance measurement - value out of tolerable range
F-Imax
internal over current
F-Shut-Down
internal over current continuous
F-MSD-UAC
different values between BFR and SRR for grid voltage
F-MSD-FAC
different values between BFR and SRR for grid frequency
F-MSD-Meas
different values between BFR and SRR for dI, Fac, Vac or Zac
F-K1-Close
Relay test failed
F-K1-Open
Relay test failed
F-EarthCurMax-S
SRR-earth current between PV- and GND is out of tolerable range
F-EarthCurMax-B
BFR-earth current between PV- and GND is out of tolerable range
F-MSD-ZAC
different values between BFR and SRR for grid impedance
F-Offset
Offset check for grid voltage failed
F-MSD-Timeout
BFR or SSR controller failure
F-Vac-Bfr
BFR-grid voltage measurement - value out of tolerable range
F-Vac-Srr
SSR-grid voltage measurement - value out of tolerable range
F-VpvMax
PV input voltage out of tolerable range
F-Zac-Bfr
BFR-grid impedance measurement - value out of tolerable range
F-Zac-Srr
SSR-grid impedance measurement - value out of tolerable range
F-Watchdog
Watchdog for operation control triggered
F-GFDI Fuse Ope
The GFDI-Fuse is defective
F-ROM
Failure of Read only memory test
SB2100U
- 41 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
4.7 Measurement Precision
Any kind of measurement always depends on the accuracy. The reproducibility of the
measurement values is conceived for an ambient temperature of 77 °F (25 °C). Other
temperatures must be evaluated with respect to the inaccuracy resulting from these different temperatures.
[Unit]
Range
Resolution
Maximal failure
Display
Measurement
ϑU=+77 °F
input voltage
UPV [V]
0...650 V
1V
1,12 V
±2%
input current
IPV [mA]
0...12000 mA
1 mA
12 mA
±4%
grid voltage
UAC [V]
180...300 V
1V
0,3 V
±1%
grid current
IAC [mA]
0...15000 mA
1 mA
30 mA
±2%
grid frequency
fAC [Hz]
45...55 Hz
0,01 Hz
0,01 Hz
± 0,1 %
output power
PAC [W]
0...2500 W
1W
1W
±3%
9
energy yield
E [kWh]
0...4,29* 10 Wmin
1 Wmin
20 Wmin
±3%
operating hours
h [h]
0...4,29*109 s
1s
0,67 µs
± 0,1 %
Table 4.1: Measurement accuracy of the Sunny Boy
SB2100U
- 42 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
5 Troubleshooting
Our quality management strategy includes a constant quality improvement of our products. We always are concerned to avoid all failures and malfunctions of our products.
The product you purchased was shipped after successfully passing numerous tests concerning the operation behavior and the disconnection devices as well as long term heavy
duty tests.
We recommend the following steps in case your PV-plant does not operate correctly:
•
Check the connection to the grid and to the PV-panels - pay attention to all safety
measures listed in chapter 2 “Installation”.
•
Check the blinking code on the lid of the Sunny Boy and compare the code with the
blinking codes in chapter 4. Follow the countermeasures listed there, if necessary
contact the installer.
•
Check the ”Mode“ and ”Error“ messages in the monitoring system if present.
•
Contact the Sunny Boy service if the system malfunction persists. The address is
listed in the appendix.
In order to let your PV-plant operate again as soon as possible it is essential to provide
the following information:
SB2100U
- 43 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Information Regarding the Sunny Boy
•
Serial number of the inverter
•
Sunny Boy type
•
Short failure description
−
Number of the blinking code (chapter 4)
−
If Sunny Boy Control or a PC with Sunny Data is present: What failure is indicated?
−
Can you reproduce the failure? How can you reproduce it?
−
Has this failure always occurred?
−
What were the ambient conditions as the failure occurred?
Information concerning the PV-modules
•
Supplier, type of modules
•
Number of modules in string
•
Output power
•
Open circuit voltage
Use the original box the Sunny Boy was delivered in if it is necessary to send the Sunny
Boy to the manufacturer.
SB2100U
- 44 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
6 Warranty Regulations and Liability
Warranty
The warranty period is 5 years from the date of purchasing the device by the end user. It
ends at the latest 30 months after the delivery date from SMA, and includes all defects
caused by material or manufacturing faults.
The guaranty period for warranty repairs or compensation deliveries ends 12 months after
delivery, but runs at least until the expiration of the original warranty period for the delivered
item.
Evidence
SMA will only render warranty services if the rejected device is sent back to SMA together
with a copy of the account the distributor has issued for the consumer. The type plate at the
device must be legible. In case of non-fulfillment SMA reserves the right to refuse warranty
services.
Conditions
The device will be repaired at SMA’s discretion in its works without invoicing material and
work, or a replacement resp. compensation device will be delivered.
The rejected device is to be sent back to SMA in the original packing, or in a transport packing of equal quality.
The customer has to grant SMA the necessary time and opportunity to repair the defects.
SB2100U
- 45 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Exclusion of Liability
Excluded are any warranty claims and liabilities for direct or consequential damages due to
•
transportation damages,
•
improper installation or commissioning,
•
improper alterations, modification or repairing attempts,
•
inappropriate use or operation,
•
insufficient air supply to the device,
•
any installation and operation beyond the scope covered by according relevant
safety regulations (VDE, UL1741, NEC, etc.),
•
or force of nature (lightning, surge voltage, storm, fire).
NOTE: We cannot guarantee the proper function of the data transmission
via mains lead (Powerline modem) in case it is carried out in electric grids
with high harmonic distortion resp. high-frequency line distortions like e. g.
industrial power supply grids, or in the neighborhood of irregular consumers
(unshielded motors, switching power supplies, converters, etc.). Furthermore, the simultaneous operation of babyphones may lead to short-time
data transmission disturbances or interruptions. In case of disturbed data
transmission via mains lead, we offer alternatively a communication via
separate data line as option (RS232 or RS485).
We do not guarantee that the software is completely free of failures. In case of a fault, an
instruction how to avoid the effects of the fault is also considered as sufficient repair. Only
the customer is responsible for the correct selection, orderly use, supervision, and the results of the use of software.
We reserve the right to make alterations to improve the device. Further or other claims for
direct or indirect damages, especially including claims for damages from positive contract
violation, are excluded insofar as not otherwise compelling stated by law.
SB2100U
- 46 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
7 Technical Data
Input (PV panel)
Maximum open circuit voltage of the PV panel
WARNING: It is essential to comply with the respective input voltage range
which varies depending on the type and number of PV modules used.
WARNING: The maximum open circuit voltage of the PV panel may not exceed the specified maximum input voltage of the Sunny Boy.
The open circuit voltage of the PV panel depends on the temperature of its cells and
on the respective solar radiation. The highest open circuit voltage of the PV panel occurs when the temperature of the cells is at its lowest point. Therefore it has to take
into account the lowest possible ambient temperature of the PV panel when planning
the PV plant. Based on this temperature and knowing the type of PV modules used
you can then determine the maximum open circuit voltage of the PV panel. You can
use the string sizing program on the web and check whether the maximum admissible
input voltage of the Sunny Boy is not exceeded under any possible operating conditions. You will find this tool on the SMA America Web site:
http://www.sma-america.com
WARNING: The MPP-voltage of the connected PV-modules may not fall
below the specified range at 158 °F (+70 °C) (VMPP +158 °F > min. input voltage
range).
NOTE: The Sunny Boy can tolerate a current higher than the specified
current as long as the voltage is within the specified range.
SB2100U
- 47 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
7.1.1 Minimum MPP-Voltage of the PV Module
Often a fixed lower MPP voltage limit of the inverter is not useful when the cells of the PV
panel have very high temperatures. This means the MPP voltage of the PV panel decreases and the inverter cannot feed the maximum power from the PV panel to the lowvoltage grid. The inverter remains at the lower limit of input voltage and cannot follow the
MPP of the PV panel. Therefore the Sunny Boy has a flexible MPP voltage range.
There is a fixed ratio between the minimum MPP voltage VMPPmin the Sunny Boy loads
onto the PV panel and the grid voltage VAC as shown in Fig. 7.1.
Depending on the current grid voltage the minimum DC voltage is assessed and fixed.
This flexible MPP voltage range lets the user make optimum use of the specific device
characteristics while the energy yield is increased.
270
260
256 Volt DC
250
VMpp min [V]
240
234 Volt DC
230
220
210
207 Volt DC
200
190
180
211Volt AC
170
160
200
205
210
215
220
240 Volt AC
225
230
235
264 Volt AC
240
245
250
255
260
265
VAC [V]
Fig. 7.1: Minimal MPP-voltage as a function of grid voltage
SB2100U
- 48 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Input Values of the Sunny Boy (DC side)
Input voltage, MPP range (depending on V ):
AC
VPV
234 V∗ - 550 V DC
Max. open circuit voltage (under all conditions):
VPVOC
≤ 600 V DC
Max. input current:
IPV
13 A DC
Max. DC power:
PPV
2710 W DC
Recommended PV-panel power:
up to
3000 WP
Voltage ripple:
VPP
< 10 %
All-pole disconnection on DC side:
optional external DC-breaker
Pole confusion protection:
short circuit diode
Ground fault protection:
ground fault detection(IDif > 1000 mA)
∗
@ VACnom
SB2100U
- 49 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Output Values of the Sunny Boy (Utility side)
Nominal output power:
P
2100 W AC
ACnom
Maximum output power:
P
2100 W AC
ACmax
Operating range, utility voltage:
V
211 - 264 V AC
AC
Operating range, utility frequency:
f
59.3 – 60.5 Hz
AC
Total Harmonic Distortion (THD):
THD
<4%
IAC
(with K
< 2 %, PAC > 0,5 P
Vgrid
Phase shift (ref. fundamental)
ϕ
)
ACnom
0°
Utility monitoring:
- Islanding protection:
V ; f in accordance with UL 1741
AC
AC
- Ground Fault Protection:
IDIF; in accordance with UL1741
All pole disconnection utility:
independent disconnection (MSD),
redundant design (double)
Short circuit protection:
current controlled
Overvoltage classification:
ΙΙΙ
Testing voltage (50 Hz):
2.88 kV (1 s)
Testing voltage for surge (1,2/50 µs):
4 kV (serial interface 6 kV)
External Interfaces
Data transmission via Powerline:
optional
Data transmission via separate cable:
optional; electrically separated RS232 / RS485
SB2100U
- 50 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Power Consumption
Internal consumption during operation:
<7W
Internal consumption during stand-by:
< 0.25 W
Efficiency
ηmax
Maximum efficiency:
> 94.8 %
Ambient Conditions
Tolerable ambient temperature:
-13 °F…140 °F ( -25 oC ... +60 oC)
Rel. humidity:
0 ... 100 %, class 3K6
Size & Weight
Enclosure type:
NEMA 4X
Size (w x h x d):
17.08 x 11.61 x 8.42inch
(434 x 295 x 214 mm)
Weight:
70 lb. (32 kg)
Certifications:
EMI:
in compliance with FCC regulations,
DIN EN 50081, Part 1
(EN 55014, EN 60555 Part 2,
EN 55011 group 1, class B)
DIN EN 50082, part 1
Utility interaction:
in compliance with UL1741,
EN 61000-3-2
Utility monitoring:
in compliance with UL1741,
optional: MSD (VDEW; E DIN VDE 0126
(10.97))
Low voltage regulation:
DIN EN 50178 (4.98) (VDE 0160)
DIN EN 60146 part 1-1 (3.94)
(VDE 0558 part 11)
SB2100U
- 51 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
12,0
10,0
8,0
6,0
I PV [ A]
4,0
2,0
250
300
350
400
450
500
550
600
UP V [A]
Fig. 7.2: Maximal Input Current of the Sunny Boy 2100U
Fig. 7.3: Output Power of the Sunny Boy 2100U
SB2100U
- 52 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Fig. 7.4: Efficiency of the Sunny Boy 2100U
SB2100U
- 53 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Parameter List Sunny Boy 2100U
All parameters are transmitted to Sunny Data or to the Sunny Boy Control when the Sunny
Boy is configured. The following table shows the available parameters:
No.
Name
Unit
Range
from ...
Default
Change by
to...
1
SMA-SN
-
Fixed
2
Vpv-Start
V
250
600
300
Installer
3
T-Start
S
5
300
300
Installer
5
T-Stop
S
1
300
2
Installer
6
V-Const Setval
V
250
600
600
Installer
Plimit
W
2500
Fixed
23
Testcurrent Zac
MA
0
15000
8000
Installer
28
Vac-Min
V
180
300
213
Installer
29
Vac-Max
V
180
300
262
Installer
30
Fac-delta-
Hz
0
4.5
0.69
Installer
31
Fac-delta+
Hz
0
4.5
0.49
Installer
dFacmax
Hz / s
0.005
4.0
0.5
Installer
32
Zac-Max
mOhm
0
20000
20000
Installer
33
dZac
mOhm
0
20000
20000
Installer
43
Hardware-BFS
Version
Fixed
44
Software-BFR
Version
Fixed
45
Software-SRR
Version
Fixed
68
Operating mode
MPP-operation
Installer
69
Memory function
no function
Installer
Default
USA 60Hz
Installer
Storage
permanent
Installer
Table 7.2: Parameter list for the Sunny Boy 2100U
SB2100U
- 54 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
8 Appendix
Information about SMA
Further literature about the Sunny Boy inverter family:
•
User Manual Sunny Boy 700U
•
User Manual Sunny Boy 1100U
•
User Manual Sunny Boy 1800U
•
User Manual Sunny Boy 2100U
•
User Manual Sunny Boy 2500U
•
User Manual Sunny Boy 3600U
•
User Manual Sunny Boy 6000U
•
User Manual Sunny Data
•
User Manual Sunny Data Control
•
User Manual Sunny Boy Control
•
SMA CD (products, technical documentation, driver)
Sunny Boy in the Internet:
All documentation and software concerning the Sunny Boy products is available on the
Internet - http://www.sma-america.com
SB2100U
- 55 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
Our Web site is updated frequently and offers:
•
the latest information concerning the family of Sunny Boy inverters
•
training schedules
•
the latest software
•
help with the design and troubleshooting of your PV-plant
•
additional information about SMA America, Inc
SB2100U
- 56 -
SMA America, Inc.
Sunny Boy 2100U
Installation and User Manual
SMA in the USA:
•
Address:
SMA America Inc.
12438 Loma Rica Dr.
Grass Valley, CA 95945
•
Telephone:
530.273.4895
•
Fax:
530.274.7271
•
eMail:
[email protected]
•
URL:
http://www. sma-america.com
SMA in Europe:
•
Address:
SMA Technologie AG
Hannoversche Straße 1 - 5
D-34266 Niestetal
•
•
Telephone:
Fax:
0049-561 / 9522 - 0
(operator)
0049-561 / 9522 - 499
(Sunny Boy Service)
0049-561 / 9522 - 100
(main fax)
0049-561 / 9522 - 4699
(Sunny Boy Service)
•
eMail:
mailto:[email protected]
•
URL:
http://www.sma.de
SB2100U
- 57 -
SMA America, Inc.
Sunny Boy
SWR 2100U
Technical Description
Issue 1.0
Grid Tied String Inverter for Photovoltaic Systems
SB2100U_Tech_Desc_013006
Sunny Boy 2100U
Technical Description
Document Number
Rev. No.
Date
By
Description
SB2100U_Tech_Desc_013006
1.0
Jan, 2006
JP
First US Version
SB2100U_Tech_Desc_013006
-2-
SMA America, Inc.
Sunny Boy 2100U
Technical Description
Explanation of Symbols used in this Document
To enable optimal usage of this manual and safe operation of the device during installation, operation and maintenance routines, please note the following description
of symbols:
This indicates a feature that is important either for optimal and comfortable
usage or optimal operation of the system.
Example: “Useful C routines for this purpose are on the support disk. “
This indicates a fact or feature very important for the safety of the user and
/ or can cause a serious hardware defect if not appropriately applied.
Example: “Disconnect the mains plug before opening the case!“
This indicates an example.
SB2100U_Tech_Desc_013006
-3-
SMA America, Inc.
Sunny Boy 2100U
Technical Description
Table of Contents
1
Introduction .................................................................................................................5
2
System Description .....................................................................................................6
3
2.1
String Technology...............................................................................................7
2.2
Diagnosis and Communication...........................................................................8
2.3
Technical design of the Sunny Boy..................................................................10
2.3.1
Ambient Temperature ..................................................................................10
2.3.2
Sequential Control System ..........................................................................11
2.3.3
Stainless Steel Case....................................................................................11
2.3.4
Islanding Protection .....................................................................................12
2.3.5
Grid Monitoring ............................................................................................13
2.3.6
Ground Fault Detector Interrupter (GFDI) ...................................................14
System Monitoring and Diagnosis ............................................................................15
3.1
Data Transmission with a Separate Data Cable ..............................................15
3.2
PV-System Management and Diagnosis .........................................................17
3.3
Measuring Channels and Messages................................................................19
3.4
Measurement Precision....................................................................................22
4
Technical Data ..........................................................................................................23
5
Appendix ...................................................................................................................31
SB2100U_Tech_Desc_013006
-4-
SMA America, Inc.
Sunny Boy 2100U
Technical Description
1 Introduction
You have decided to use one of the most sophisticated devices and for the most advanced modular PV system technology by purchasing a Sunny Boy® 1 string inverter.
SMA string technology has revolutionized parallel grid feeding. The SMA Sunny Boy
String Inverters are the most successful photovoltaic String Inverters in Europe. They
convince with their outstanding qualities concerning the efficiency and reliability and
make the installation of a PV-system most simple and affordable. Sunny Boy string
inverters are the universal equipment for all applications – small or large scale PVsystems.
The Sunny Boy has complete on-board islanding protection and meets safety operating standards and code requirements world-wide. In North America, the Sunny Boy
meets the requirements of UL 1741. NEC 690 building code requirements for photovoltaic systems are met with the internal ground fault detector interrupter (GFDI).
In Australia Sunny Boys are certified according to the “Australian Guidelines” and the
regulations of the IEC950. In the United Kingdom Sunny Boys passed the tests in
accordance with the “engineering recommendation G77”. The Sunny Boys comply
with all regulations from the VDEW (Association of German Electricity Producers) for
the supplementary grid feeding to the low voltage electricity grid of the utility. This
contains the regulations concerning the “Independent Disconnection Device” known
as MSD (Mains monitoring device with allocated Switching Devices) and the regulations of the DIN VDE 0126. Furthermore the Sunny Boy complies with the according
standards and the low voltage regulations as certified in the CE declaration (see appendix).
1
Sunny Boy is a registered Trademark of SMA Technologie AG
SB2100U_Tech_Desc_013006
-5-
SMA America, Inc.
Sunny Boy 2100U
Technical Description
2 System Description
The reduction of CO² emission and other pollution resulting from energy conversion is
becoming more and more important. The direct conversion of solar radiation to electric energy (photovoltaics) will play a substantial role in this essential matter.
Supplementary grid feeding includes the conversion of the DC voltage from the PVpanel to grid compatible AC voltage with so-called ”inverters“ and the subsequent
connection to the electricity grid in the house distribution.
Here the electricity from the PV-modules provides all consumers with electric power
(household devices, lights etc.). In case that not enough energy is produced the additionally necessary energy is obtained from the grid. In case that there is a surplus of
energy, this surplus is fed into the local grid and is therefore available for other consumers. This way every single kilowatt-hour is utilized and the electricity company’s
power systems are relieved. In the most simple case a PV-system therefore consists
of two basic components: the PV-panel and the inverter.
Fig. 2.1: Grid tied string inverter application
SB2100U_Tech_Desc_013006
-6-
SMA America, Inc.
Sunny Boy 2100U
Technical Description
2.1 String Technology
The experience with several thousand grid-connected PV-systems in Europe with an
output range from one to several hundred kilowatts has shown that the costs for grid
connecting and monitoring the PV-system add up to almost 50 % of the costs for the
entire system. The reduction of these costs, especially the costs for the cabling on
the DC side and the subsequent distribution on the AC side, was the reason for developing the String Technology from SMA. The Sunny Boy finally enabled the string
technology to be the standard system design for PV-systems.
String technology means that a small number of PV-modules are connected in series
to a ”string“, each string is then connected to a separate inverter which feeds the
electricity of one string to the grid. Large PV-systems consist of a large number of
single strings. The energy produced is collected directly on the AC side which results
in the fact that the system design gets very simple and no extraordinary DC cabling is
necessary anymore. String Technology allows MPP tracking for each small module
group, thus improving system efficiency by 1 - 3 %.
The most various system concepts can be realized with this strategy. A wide range of
differently scaled inverters and peripheral components is available:
Sunny Boy Inverters:
•
Sunny Boy 700U:
The small model for small PV-systems with simple extension possibilities and
configurable input voltage range
•
Sunny Boy 1100U:
For PV-systems with 1 kWp; supports a wider input voltage range.
•
Sunny Boy 2100U:
The powerful string inverter with electric separation, ideal for large PV-systems.
SB2100U_Tech_Desc_013006
-7-
SMA America, Inc.
Sunny Boy 2100U
Technical Description
Additional Equipment for the Sunny Boy Inverters
•
Sunny Display
Lid integrated LCD for all Sunny Boys, cyclic display of all relevant operating
data
•
Sunny Data:
The PC-program for the communication with your Sunny Boy inverters
•
Sunny Boy Control:
The terminal for your PV-system for data acquisition and evaluation - for up to
50 Sunny Boys - communication via Powerline or RS232 / RS485
•
Sunny Boy Control PLUS:
The terminal for your PV-system for data acquisition and evaluation - for up to
50 Sunny Boys - communication via Powerline or RS232 / RS485 - additional
digital I/O channels for nearly any sensor type - continuous standalone data
storage and remote access via modem etc.
•
Sunny Data Control:
The PC-program for visualization of the data from your Sunny Boy Control
The Sunny Boy Family is the result of a consequent development with SMA´s experience in PV conversion with over 300,000 units with nominal powers from 700 to
6000W (date: 02/06).
2.2 Diagnosis and Communication
The modular PV system technology leads to a spread out distribution of the Sunny Boy
String inverters. A simple and fast function monitoring of the status and measured values for each single Sunny Boy is easy to achieve. The data is either displayed on the
LCD of the Sunny Boy Control or is shown on the screen of a PC running the according
SMA software. Two programs ”Sunny Data“ and ”Sunny Data Control“ are based on a
comfortable Windows GUI and allow the user to process the data with other programs
®
such as MS Excel .
SB2100U_Tech_Desc_013006
-8-
SMA America, Inc.
Sunny Boy 2100U
Technical Description
The data transmission is done via Powerline (see chapter Error! Reference source
not found.). SMA supports the following monitoring strategies for Sunny Boy string inverters:
•
PC with software package Sunny Data for small and medium size PV-systems also for Sunny Boy Control and Sunny Boy Control Light
•
Sunny Boy Control as standalone controller for nearly any PV-system size
•
PC with software package Sunny Data Control for enhanced operation together
with the Sunny Boy Control
These monitoring concepts support the following features:
•
Continuous acquisition of operation data of all connected string inverters and
their PV-panels
•
Supervision of operating states and failure indication
•
Spot value transmission from single Sunny Boys
•
Identification of failures in the single strings
•
Graphical representation of the data from single Sunny Boys or comparison of
the data from several ones
•
System management, transmission of operation parameters
SB2100U_Tech_Desc_013006
-9-
SMA America, Inc.
Sunny Boy 2100U
Technical Description
2.3 Technical design of the Sunny Boy
The Sunny Boy inverter is based on a power unit that operates with a very high efficiency and optimal reliability. An IGBT H-bridge converts the voltage coming from the
PV modules to a high frequency secondary circuit with 16 kHz. The voltage is then
fed to the grid after being processed by a transformer.
Fig. 2.2: Block circuit diagram of the Sunny Boy 2100U
The Sunny Boy 2100U is designed for strings with 18 to 24 standard modules connected in series.
A micro controller manages the current control which results in a perfectly sinus wave
AC current with very low harmonic distortion. Operation is possible with a fixed voltage or with MPP tracking.
2.3.1 Ambient Temperature
The heat sink of the Sunny Boy is necessary in order to let thermal energy dissipate.
Once the heat sink gets too hot the Sunny Boy reduces the output energy accordingly but nevertheless keeps feeding to the grid.
SB2100U_Tech_Desc_013006
- 10 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
2.3.2 Sequential Control System
The sequential control system also manages the communication with the system
monitoring tools Sunny Data and Sunny Data Control. The Sunny Boy therefore is
not only a simple standalone device - it can be part of one big PV-system that has
one central control and monitoring facility.
2.3.3 Stainless Steel Case
The case of the Sunny Boy is made of stainless steel which protects the inverter from
dust and water up to enclosure type NEMA 4X. The Sunny Boy can therefore be
mounted nearly anywhere inside or outside the house with an ambient temperature
range of -13 °F … 140 °F (-25° C to +60 °C). All applicable standards and regulations
for personnel safety and EMI are complied with.
SB2100U_Tech_Desc_013006
- 11 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
2.3.4 Islanding Protection
Islanding protection is an essential safety issue in order to make sure that nobody
working on the grid is harmed. It is important to detect an ”islanding“ where the public
grid is not up and the electricity consumers and producers are accidentally equal resulting in the fact that the electricity circuits are on ”full blow“ even though the fuses
are down.
The method of Sunny Boy islanding detection includes the active grid impedance
measurement has been extensively tested and proven to exceed the requirements of
UL1741. In the event of a utility outage, these active measurement results in an
over/under frequency or voltage condition. The Sunny Boy then is disconnected from
the grid. Two independent one-chip computers monitor the grid. Each of these computers constantly monitors the grid quality by checking the frequency, voltage and
grid impedance. The redundant circuit and an automatic self test on each system
startup ensure a reliable function of the grid disconnection. The value of the grid impedance is the sum of the impedance of the public grid and the cabling impedance of
the house (i.e. cable of the house distribution to the connection point of the Sunny
Boy). It is therefore important to avoid an unnecessary increase of the grid impedance due to the connection cable to the Sunny Boy. Otherwise the grid voltage is increased to non-permissible values while the Sunny Boy feeds to the grid.
NOTE: We recommend that you have a look at the connection wire between the Sunny Boy to the house distribution with respect to the impedance increase.
SB2100U_Tech_Desc_013006
- 12 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
2.3.5 Grid Monitoring
Conditions that cause the Sunny Boy to be disconnected from the grid:
•
Over / under AC-voltage
−
The grid voltage may be within a range of the requirements of UL1741.
Once the grid voltage exceeds this range the Sunny Boy is disconnected
from the grid within 0.1 s.
•
Over / under grid frequency
−
The grid frequency may be within a range of +0.5 to –0.7 Hz of the nominal grid frequency while the voltage is within a range of -30 % and +15 %
of the nominal grid voltage VAC - once the frequency goes beyond this
range the Sunny Boy is disconnected from the grid within 0.1 s.
•
Rate of change of frequency
−
Once the frequency changes drastically while it is feeding to the grid, the
Sunny Boy disconnects within 0.2 s.
•
Grid impedance measurement
−
The Sunny Boy does not start to feed to the grid if the grid impedance ZAC
is higher than an adjustable trip point.
−
The Sunny Boy is disconnected from the grid within 5 sec. once the grid
impedance changes drastically within a short time or the impedance gets
too high. All values are adjustable by an authorized installer.
This new Sunny Boy disconnection concept provides maximal safety with nevertheless minimal necessary installation.
SB2100U_Tech_Desc_013006
- 13 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
2.3.6 Ground Fault Detector Interrupter (GFDI)
The GFDI is supposed to interrupt the connection to ground of the PV panel in case a
ground leakage current of 1 A is exceeded. This ground fault current is the result of a
ground fault of the PV panel. The inverter then has to indicate this condition and disconnect from the grid. The inverter has to be reset manually, it cannot restart automatically.
In grid-feeding mode the ground current is continuously monitored by two independent systems, the sequential control system and the current control system. If the
maximum current intensity is exceeded the inverter switches to “permanent disable”“Earth-currentmax”. This is indicated by the red and yellow LEDs.
In addition the voltage between the ground and PV-minus is monitored. If the voltage
exceeds the maximum value defined the failure “GFDI Fuse Open” is displayed and
the inverter stops feeding to the grid. This failure is indicated by the red LED. The
“GFDI Fuse Open” failure persists in case the GFDI fuse is defective.
SB2100U_Tech_Desc_013006
- 14 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
3 System Monitoring and Diagnosis
The monitoring and control of PV-systems is essential for the optimal energy yield,
the safety of your PV-system and the long life of your PV-components.
The Sunny Boy family inverters have various options for PV-system control and
monitoring. This chapter will try to cover all different possibilities for the data transmission, the cabling circuits and how to eliminate and suppress any transmission failures.
3.1 Data Transmission with a Separate Data Cable
Data transmission via Powerline is a reliable and affordable solution. In electrical
grids which are strongly influenced by high-frequency disturbance such as those in
industrial sites data transmission via Powerline may not be possible. Communication
between the Sunny Boys and the Sunny Boy Control or the PC can then be done
with a separate data cable.
RS232 communication
If only one Sunny Boy has to be connected to the PC the easiest way is direct coupling via an RS232 port. A maximum of 15 m is permissible between the PC and the
Sunny Boy.
Fig. 3.1: Example for RS232 communication with a single Sunny Boy
NOTE: RS232 communication is only suitable for data transmission be-
SB2100U_Tech_Desc_013006
- 15 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
tween a PC and one single Sunny Boy.
NOTE: RS232 communication with a Sunny Boy is only a reasonable solution with direct connection to the PC. If a Sunny Boy Control is used instead of the PC an RS485 connection is necessary. See section “RS485
communication” for details.
RS485 communication
In grids loaded with high interference several Sunny Boys can be connected to a PC
or the Sunny Boy Control via RS485 and a separate data cable. Data cables of up to
1200 m are permissible.
Sunny Boy
Sunny Boy
Sunny Boy
Sunny Boy Control
RS485
Sunny Boy
Sunny Boy
interface
converter
Sunny Boy
RS232
RS485
Fig. 3.2: Schematic layout of RS485 data transmission with several Sunny Boys
SB2100U_Tech_Desc_013006
- 16 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
3.2 PV-System Management and Diagnosis
Sunny Data
Sunny Data is used in order to establish a communication between a PC and your
Sunny Boys and process and evaluate the data from these.
Selected measurement channels can be displayed online. The data can be displayed
manually or automatically. The data is stored on any available mass storage medium.
Special functions allow the installer to modify the operating parameters of the Sunny
Boy in order to improve the system performance. Details are available in the Sunny
Data manual.
Fig. 3.3: Sunny Data user interface
SB2100U_Tech_Desc_013006
- 17 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
Sunny Data Control
Large PV-systems are supervised and monitored with a Sunny Boy Control. The Sunny
Boy Control handles up to 50 Sunny Boys and assists the commissioning of the PVsystem. Additional features are remote diagnosis via modem, fax messages and more.
The data can be collected by a PC connected to the Sunny Boy Control. Sunny Data
Control is the software that manages the PV-system and can display the data in nearly
any desired way.
For details see the Sunny Data Control manual.
single device
detailed device
information
short information
Fig. 3.4: Sunny Data Control user interface
SB2100U_Tech_Desc_013006
- 18 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
3.3 Measuring Channels and Messages
The communication supports a number of measuring channels and messages from
the Sunny Boy inverters.
The following abbreviations are used:
BFR
Betriebsführungsrechner (Sequential Control System)
SRR
Stromregelungsrechner (Current Control System)
Measuring Channels
Vpv
PV-input voltage
Vpv-Setpoint
PV-desired input voltage of the Vpv-control
Iac
current to the grid
Vac
grid voltage
Fac
grid frequency
Pac
power fed to grid
Zac
grid impedance
Vpv-_PE
PV-voltage to earth
Ipv
current from PV-panels
E-Total
energy yield
h-Total
total operation hours
Power On
total system start ups
Serial Number
Sunny Boy serial number
Mode
operating mode
Error
failure description for mode “disturbance“
SB2100U_Tech_Desc_013006
- 19 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
Mode Messages
Stop
manual system stop
Offset
offset calibration of the electronics
Waiting
grid conditions are not fulfilled (yet)
Grid monitoring
checking grid (grid impedance)
MPP-Search
PV voltage is determined and set
MPP
Sunny Boy is in MPP mode
V-Const
Sunny Boy is in constant voltage MPP mode
Disturbance
failure
Error messages
F-Bfr-Srr
communication between micro-controllers is failing
F-EEPROM
EEPROM cannot be read or written on
F-EEPROM dBh
EEPROM cannot be read or written on
F-Fac-Bfr
BFR-frequency measurement - value out of tolerable range
F-Fac-Srr
SSR-frequency measurement - value out of tolerable range
F-dZac-Bfr
BFR-impedance measurement - value out of tolerable range
F-dZac-Srr
SSR-impedance measurement - value out of tolerable range
F-Imax
internal over current
F-Shut-Down
internal over current continuous
F-MSD-UAC
different values between BFR and SRR for grid voltage
F-MSD-FAC
different values between BFR and SRR for grid frequency
F-MSD-Meas
different values between BFR and SRR for dI, Fac, Vac or Zac
F-K1-Close
Relay test failed
F-K1-Open
Relay test failed
F-EarthCurMax-S
SRR-earth current between PV and GND is out of tolerable
range
F-EarthCurMax-B
BFR-earth current between PV and GND is out of tolerable
range
F-MSD-ZAC
different values between BFR and SRR for grid impedance
F-Offset
Offset check for grid voltage failed
F-MSD-Timeout
BFR or SSR controller failure
F-Vac-Bfr
BFR-grid voltage measurement - value out of tolerable range
SB2100U_Tech_Desc_013006
- 20 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
F-Vac-Srr
SSR-grid voltage measurement - value out of tolerable range
F-VpvMax
PV input voltage out of tolerable range
F-Zac-Bfr
BFR-grid impedance measurement - value out of tolerable
range
F-Zac-Srr
SSR-grid impedance measurement - value out of tolerable
range
F-Watchdog
Watchdog for operation control triggered
F-ROM
failure of read only memory test
SB2100U_Tech_Desc_013006
- 21 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
3.4 Measurement Precision
Any kind of measurement always depends on the accuracy. The reproducibility of the
measurement values is conceived for an ambient temperature of 77 °F (25 °C). Other
temperatures must be evaluated with respect to the inaccuracy resulting from these
different temperatures.
[Unit]
Range
Resolution
Maximal
failure
Display
Measurement
ϑU=+77 °F
input voltage
VPV
[V]
0...650 V
1V
1,12 V
±2 %
input current
IPV
[mA]
0...12000 mA
1 mA
12 mA
±4 %
grid voltage
VAC
[V]
180...300 V
1V
0,3 V
±1 %
grid current
IAC
[mA]
0...15000 mA
1 mA
30 mA
±2 %
grid frequency
fAC
[Hz]
45...55 Hz
0.01 Hz
0.01 Hz
±0.1 %
output
power
PAC
[W]
0...2500 W
1W
1W
±3 %
energy yield
E
[kWh]
0...4,29* 109 Wmin
1 Wmin
20 Wmin
±3 %
operating
hours
H [h]
0...4.29* 109 s
1s
0.67 µs
±0.1 %
Table 3.1: Measurement accuracy of the Sunny Boy
SB2100U_Tech_Desc_013006
- 22 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
4 Technical Data
Input (PV panel)
Maximum open circuit voltage of the PV panel
WARNING: It is essential to comply with the respective input voltage range
which varies depending on the type and number of PV modules used.
WARNING: The maximum open circuit voltage of the PV panel may not exceed the specified maximum input voltage of the Sunny Boy.
The open circuit voltage of the PV panel depends on the temperature of its cells
and on the respective solar radiation. The highest open circuit voltage of the PV
panel occurs when the temperature of the cells is at its lowest point. Therefore it
has to take into account the lowest possible ambient temperature of the PV panel
when planning the PV-system. Based on this temperature and knowing the type
of PV modules used you can then determine the maximum open circuit voltage of
the PV panel. You can enter these data into our EXCEL® tool “GenAu“ and check
whether the maximum admissible input voltage of the Sunny Boy is not exceeded
under any possible operating conditions. You will find this tool in the Internet for
download at:
http://www.SMA.de/ftp/energietechnik/sunnyboy/GenAu/GenAu.exe
WARNING: The MPP-voltage of the connected PV-modules may not get
below the specified range at +160 °F (UMPP +160 °F > min. input voltage range).
NOTE: The Sunny Boy can tolerate a current higher than the specified
current as long as the voltage is within the specified range.
SB2100U_Tech_Desc_013006
- 23 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
Minimum MPP-voltage of the PV panel
Often a fixed lower MPP voltage limit of the inverter is not useful when the cells of
the PV panel have very high temperatures. This means the MPP voltage of the PV
panel decreases and the inverter cannot feed the maximum power from the PV panel
to the low-voltage grid. The inverter remains at the lower limit of input voltage and
cannot follow the MPP of the PV panel. Therefore the Sunny Boy has a flexible MPP
voltage range.
There is a fixed ratio between the minimum MPP voltage VMPPmin the Sunny Boy loads
onto the PV panel and the grid voltage VAC as shown in Fig. 4.1
Depending on the current grid voltage the minimum DC voltage is assessed and
fixed. This flexible MPP voltage range lets the user make optimum use of the specific
device characteristics while the energy yield is increased.
270
260
256 Volt DC
250
VMpp min [V]
240
234 Volt DC
230
220
210
207 Volt DC
200
190
180
211Volt AC
170
160
200
205
210
215
220
240 Volt AC
225
230
235
264 Volt AC
240
245
250
255
260
265
VAC [V]
Fig. 4.1: Minimum MPP-voltage as a function of grid voltage
SB2100U_Tech_Desc_013006
- 24 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
Input Values of the Sunny Boy (DC side)
Input voltage, MPP range (depending on VAC):
VPV
234 V∗ - 480 V DC
Max. open circuit voltage (under all conditions):
VPVOC
≤ 600 V DC
Max. input current:
IPV
13 A DC
Max. DC power:
PPV
2600 W DC
Recommended PV-generator power:
up to
2600 WP
Voltage ripple:
VPP
< 10 %
All-pole disconnection on DC side:
optional external DC-breaker
Pole confusion protection:
short circuit diode
Ground fault protection:
ground fault detection
(IDif > 1000 mA)
∗
@VACnom
SB2100U_Tech_Desc_013006
- 25 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
Output values of the Sunny Boy (utility side)
Nominal output power:
P
2100 W AC
ACnom
Maximum output power:
P
2100 W AC
ACmax
Operating range, utility voltage:
V
211 - 264 V AC
AC
Operating range, utility frequency:
f
59.3 - 60.5 Hz
AC
Total Harmonic Distortion (THD):
THD
<4%
IAC
(with K
< 2 %, P > 0.5 P
Vgrid
Phase shift (ref. fundamental)
ϕ
AC
)
ACnom
0°
Utility monitoring:
- Islanding protection:
V ; f in accordance with UL 1741
AC
AC
- Ground Fault Protection:
IDIF; in accordance with UL1741
All pole disconnection utility:
independent disconnection (MSD),
redundant design (double)
Short circuit protection:
current controlled
Overvoltage classification:
ΙΙΙ
Testing voltage (50 Hz):
2.88 kV (1 s)
Testing voltage for surge (1.2/50 µs):
4 kV (serial interface 6 kV)
External Interfaces
Data transmission via Powerline:
optional
Data transmission via separate cable:
optional; electrically separated
RS232 / RS485
SB2100U_Tech_Desc_013006
- 26 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
Power Consumption
Internal consumption during operation:
<7W
Internal consumption during stand-by:
< 0.25 W
Efficiency
ηmax
Max. Efficiency:
> 94 %
Ambient Conditions
Tolerable ambient temperature:
-13 °F…140 °F ( -25 oC ... +60 oC)
Rel. humidity:
0 ... 100 %, class 3K6
Size & Weight
Enclosure type:
NEMA 4X
Size (w x h x d):
17.08 x 11.61 x 8.42 inch
(434 x 295 x 214 mm)
Weight:
70 lb. (32 kg)
Certifications:
EMI:
in compliance with FCC Part 15 B,
DIN EN 50081, part 1
(EN 55014, EN 60555 part 2,
EN 55011 group 1, class B)
DIN EN 50082, part 1
Utility interaction:
in compliance with UL1741,
EN 61000-3-2
Utility monitoring:
in compliance with UL1741,
optional: MSD (VDEW; E DIN VDE
0126 (10.97))
Low voltage regulation:
DIN EN 50178 (4.98) (VDE 0160)
DIN EN 60146 part 1-1 (3.94)
(VDE 0558 part 11)
SB2100U_Tech_Desc_013006
- 27 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
12,0
10,0
8,0
6,0
I PV [ A]
4,0
2,0
250
300
350
400
450
500
550
600
UP V [A]
Fig. 4.2: Maximum Input Current of the Sunny Boy 2100U
Fig. 4.3: Output Power of the Sunny Boy 2100U
SB2100U_Tech_Desc_013006
- 28 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
Fig. 4.4: Efficiency of the Sunny Boy 2100U
SB2100U_Tech_Desc_013006
- 29 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
Parameter List Sunny Boy 2100U
All parameters are transmitted to Sunny Data or to the Sunny Boy Control when the
Sunny Boy is configured. The following table shows the available parameters:
No.
Name
Unit
Range
from
Default
Change by
to
1
SMA-SN
-
Fixed
2
Vpv-Start
V
250
600
300
Installer
3
T-Start
S
5
300
300
Installer
5
T-Stop
S
1
300
2
Installer
6
V-Const
Setval
V
250
600
600
Installer
Plimit
W
2150
Fixed
23
Testcurrent Zac
MA
0
15000
8000
Installer
28
Vac-Min
V
180
300
213
Installer
29
Vac-Max
V
180
300
262
Installer
30
Facdelta-
Hz
0
4,5
0,69
Installer
31
Facdelta+
Hz
0
4,5
0,49
Installer
dFacmax
Hz/s
0.00
5
4.0
0.5
Installer
32
Zac-Max
mOhm
0
20000
20000
Installer
33
dZac
mOhm
0
20000
20000
Installer
43
Hardware-BFS
Version
Fixed
44
SoftwareBFR
Version
Fixed
45
SoftwareSRR
Version
Fixed
68
Operating
mode
MPP-operation
Installer
69
Memory
function
no function
Installer
Default
USA 60 Hz
Installer
Storage
permanent
Installer
Table 4.2: Parameter list Sunny Boy 2100U
SB2100U_Tech_Desc_013006
- 30 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
5 Appendix
Further literature about the Sunny Boy inverter family:
•
User Manual Sunny Boy 700U
•
User Manual Sunny Boy 1100U
•
User Manual Sunny Boy 1800U
•
User Manual Sunny Boy 2100U
•
User Manual Sunny Boy 2500U
•
User Manual Sunny Boy 3800U
•
User Manual Sunny Boy 6000U
•
User Manual Sunny Data
•
User Manual Sunny Data Control
•
User Manual Sunny Boy Control
•
SMA CD (products, technical documentation, driver)
Sunny Boy on the Internet:
All documentation and software concerning the Sunny Boy products are available on
the Internet - http://www.sma-america.com
Our Web site is updated frequently and offers:
•
the latest information concerning the family of Sunny Boy inverters
•
training schedules
•
the latest software
•
help with the design and troubleshooting of your PV plant
SB2100U_Tech_Desc_013006
- 31 -
SMA America, Inc.
Sunny Boy 2100U
Technical Description
SMA in the USA:
•
Address:
SMA America Inc.
12438 Loma Rica Dr.
Grass Valley, CA 95945
•
Phone:
530.273.4895
•
Fax:
530.274.7271
•
eMail:
[email protected]
•
URL:
www. sma-america.com
SMA in Europe:
•
Address:
SMA Technologie AG
Hannoversche Straße 1 - 5
D-34266 Niestetal
•
•
Phone:
Fax:
0049-561 / 9522 - 0
(operator)
0049-561 / 9522 - 499
(Sunny Boy Service)
0049-561 / 9522 - 100
(main fax)
0049-561 / 9522 - 4699
(Sunny Boy Service)
•
eMail:
mailto:[email protected]
•
URL:
www.sma.de
Appendix: drilling template
SB2100U_Tech_Desc_013006
- 32 -
SMA America, Inc.
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement