SMA WB 3300-11 Installation
EN
Wind Power Inverter
WINDY BOY 3300 / 3800
Installation Manual
WB33-38-IA-IEN120940 | IME-WB3800 | Version 4.0
SMA Solar Technology AG Table of Contents
Table of Contents
1 Information on this Manual. . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Target Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Intended Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3 Explanation of Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3.1 Symbols on the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3.2 Symbols on the Type Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Identifying the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Selecting the Mounting Location. . . . . . . . . . . . . . . . . . . . . . . . 16
4.3 Mounting the Inverter using the Wall Mounting Bracket . . . . . 18
5 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.2 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . 21
5.2.1 Exterior View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.2.2 Interior view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Installation Manual WB33-38-IA-IEN120940 3
Table of Contents SMA Solar Technology AG
5.3 Connection to the Electricity Grid (AC). . . . . . . . . . . . . . . . . . . 23
5.3.1 Conditions for AC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.3.2 Connecting the Inverter to the Electricity Grid (AC) . . . . . . . . . . . . . . . . . . . 25
5.3.3 Connecting Additional Earthing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.4 Setting the Display Language . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.5 Connecting the Small Wind Turbine System (DC) . . . . . . . . . . 30
5.5.1 Conditions for DC connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.5.2 Assembling the DC Connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.5.3 Opening DC Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.5.4 Connecting the Small Wind Turbine System (DC). . . . . . . . . . . . . . . . . . . . . 34
5.6 Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.7 Setting the Grid and Country Parameters . . . . . . . . . . . . . . . . . 36
5.7.1 Setting the Installation Country . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.7.2 Setting to Stand-alone Grid Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
5.8 Polynomial Curve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.1 Commissioning the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.2 Display Messages During the Start-up Phase . . . . . . . . . . . . . . 40
6.3 Self-Test in Accordance with DK 5940, Ed. 2.2
(Applies to Italy Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.3.1 Starting the Self-Test by Tapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.3.2 Completion of the Self-test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.4 Operating States of the Inverter . . . . . . . . . . . . . . . . . . . . . . . . 46
7 Opening and Closing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.2 Opening the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7.3 Closing the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
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SMA Solar Technology AG Table of Contents
8 Maintenance and cleaning . . . . . . . . . . . . . . . . . . . . . . . . 52
8.1 Cleaning the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.2 Checking Heat Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.2.1 Cleaning the Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
8.2.2 Checking the Fans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
8.2.3 Cleaning the Ventilation Grids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
9 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
9.1 Blink Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
9.2 Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
9.3 Red LED is Permanently On . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
9.3.1 Checking the Small Wind Turbine System for Earth Faults . . . . . . . . . . . . . . 62
9.3.2 Checking the Function of the Varistors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
10 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
10.1 Dismantling the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
10.2 Packing the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
10.3 Storing the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
10.4 Disposing of the inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
11 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
11.1 DC/AC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
11.1.1 Windy Boy 3300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
11.1.2 Windy Boy 3800 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
11.2 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
11.3 Protective Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
11.4 Licences. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
11.5 Climatic Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
11.6 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
11.7 Torques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
11.8 Distribution systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Installation Manual WB33-38-IA-IEN120940 5
Table of Contents SMA Solar Technology AG
12 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
13 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
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SMA Solar Technology AG Information on this Manual
1 Information on this Manual
1.1 Validity
This manual describes the mounting, installation, commissioning, maintenance and troubleshooting
procedures for the following SMA inverters:
• Windy Boy 3300 (WB 3300, WB 3300-11, WB 3300-IT)
• Windy Boy 3800 (WB 3800, WB 3800-11, WB 3800-IT)
Please store this manual where it will be accessible at all times.
1.2 Target Audience
This manual is for the use of electrically skilled persons. The tasks described in this manual may be
performed by electrically skilled persons only.
1.3 Additional Information
You will find further information on special topics, such as the design of a miniature circuit-breaker or
the description of the operating parameters, in the download area at www.SMA.de/en.
Please refer to the user manual provided for detailed information on operating the inverter.
Installation Manual WB33-38-IA-IEN120940 7
Information on this Manual SMA Solar Technology AG
1.4 Symbols Used
The following types of safety precautions and general information are used in this manual:
DANGER!
DANGER indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING!
WARNING indicates a hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION!
CAUTION indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury.
NOTICE!
NOTICE indicates a situation which, if not avoided, could result in property damage.
Information
Information provides tips that are valuable for the optimal installation and operation of the
product.
☑ This symbol indicates the result of an action.
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SMA Solar Technology AG Safety
2 Safety
2.1 Intended Use
The Windy Boy is a wind power inverter, which converts the rectified current generated by a small
wind turbine system into AC current and feeds this energy into the electricity grid, domestic network
or the Sunny Island system.
Principle of a small wind turbine system with Windy Boy
In add iti on, the W ind y Bo y can be u sed as inver ter for energy c onverters based on permanent magnet
generators (hydro-power systems, combined heat and power plants, diesel generators, etc.).
The manufacturer of the small wind turbine system or generator must have approved his plant for
operation with this Windy Boy.
For safety reasons, it is not permitted to modify the product or install components that are not explicitly
recommended or distributed by SMA Solar Technology AG.
When designing the PV plant, ensure that the permitted operating range of all components is
complied with at all times. Moreover, make sure that appropriate protective measures are in place to
ensure that the maximum permissible input voltage is not exceeded. SMA Solar Technology AG offers
you the necessary components, such as the Windy Boy Protection Box (overvoltage protection for
wind power inverters including the rectifier).
Installation Manual WB33-38-IA-IEN120940 9
Safety SMA Solar Technology AG
2.2 Safety Precautions
DANGER!
Electric shock due to high voltages in the inverter when connecting the device.
Death or serious injuries.
• All work on the inverter must be carried out by a trained electrically skilled person
only.
• Work on the inverter should only be carried out as described in this manual.
• All safety precautions listed here must be observed.
CAUTION!
Risk of burns through contact with the hot enclosure during operation. Burns to
the palm of the hand.
• Do not touch the inverter enclosure during operation.
Problems while performing the described activities
If you hav e pr obl ems whi le p erf orm ing any of t he a cti vit ies des cri bed in t his man ual , pl eas e
contact SMA Solar Technology AG (see Section 13"Contact" (page77)).
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SMA Solar Technology AG Safety
2.3 Explanation of Symbols
This section gives an explanation of all the symbols found on the inverter and on the type label.
2.3.1 Symbols on the Inverter
Symbol Explanation
Operation display
Indicates the operating state of the inverter.
Earth fault or varistor defective
Read Section 9.3"Red LED is Permanently On" (page62).
Fault or disturbance.
Read Section 9"Troubleshooting" (page56).
You can operate the display by tapping the enclosure lid.
• Single tap: the backlight switches on or the display scrolls to the next
display message.
• Double tap in quick succession*: The inverter shows the display
messages from the start-up phase again (see Section 6.2"Display
Messages During the Start-up Phase" (page40)).
QR-Code®** for SMA bonus programme
You will find information on the SMA bonus programme at
www.SMA-Bonus.com.
* This function is valid as of firmware version 4.00.
** QR-Code is a registered trademark of DENSO WAVE INCORPORATED.
Installation Manual WB33-38-IA-IEN120940 11
Safety SMA Solar Technology AG
2.3.2 Symbols on the Type Label
Symbol Explanation
Beware of dangerous electrical voltage.
The inverter operates at high voltages. All work on the inverter must be
carried out by a trained electrically skilled person only.
Beware of hot surface.
The inverter can become hot during operation. Avoid contact during
operation.
Observe all documentation that accompanies the inverter.
Th e in ver ter must not be d isp ose d of tog eth er w ith the hous eho ld waste. For
more information on disposal, see Section 10.4"Disposing of the inverter"
(page68).
CE marking
The inverter complies with the requirements of the applicable EC directives.
RAL quality mark for solar products
The inverter complies with the requirements of the German Institute for
Quality Assurance and Labelling.
The inverter has a transformer.
Direct current (DC)
Alternating current (AC)
The inverter is protected against dust intrusion and water jets from any
angle.
The inverter is suitable for outdoor installation.
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SMA Solar Technology AG Unpacking
3 Unpacking
3.1 Scope of Delivery
Check the delivery for completeness and for any visible external damage. Contact your dealer if
anything is damaged or missing.
Object Quantity Description
A1Inverter
B 1 Wall mounting bracket
C 2 Ventilation grid (1 x left, 1 x right)
D 5 Filler-plug for wall mounting (sealing)
E 2 Cheese-head screw (M6)
F 1 AC connection socket: bush insert, protective cap for bush insert,
threaded sleeve, sealing ring, pressure screw
G 6 DC connectors (3 x positive, 3 x negative)*
H 6 Sealing plug for DC connectors
I 1 Jumper for communication / fan test
K 1 Installation manual
L1User manual
M 1 Document set with explanations and certificates
N 1 Supplementary sheet with inverter default settings
* For WB 3300-11 / WB 3800-11 2 ⨯ positive, 2 ⨯ negative
Installation Manual WB33-38-IA-IEN120940 13
Unpacking SMA Solar Technology AG
3.2 Identifying the Inverter
You can identify the inverter be means of the type label. The type label is located on the right-hand
side of the enclosure.
On the type label you will find the type (Type / Model) and the serial number (Serial No.) of the
inverter.
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SMA Solar Technology AG Assembly
4 Assembly
4.1 Safety
DANGER!
Danger to life due to fire or explosion
Despite careful construction, electrical devices can cause fires.
• Do not mount the inverter on flammable construction materials.
• Do not mount the inverter in areas where highly flammable materials are stored.
• Do not mount the inverter in a potentially explosive atmosphere.
CAUTION!
Risk of burns due to hot enclosure parts
• Do not touch the enclosure during operation.
CAUTION!
Risk of injury due to the heavy weight of the inverter.
• Bear in mind that the inverter weighs approx. 38 kg
Installation Manual WB33-38-IA-IEN120940 15
Assembly SMA Solar Technology AG
4.2 Selecting the Mounting Location
Observe the following conditions for mounting:
• The mounting method and location must be suitable for the weight and size of the inverter.
• Mount on a solid surface.
• The mounting location must be clear and safely accessible at all times without the use of
additional aids such as scaffolding or lifting platforms. Non-fulfillment of these criteria may
restrict service friendliness.
• Mount vertically or tilted backwards by max. 45°.
• Never mount the device with a forward tilt.
• Never mount the device with a sideways tilt.
• Do not mount in a horizontal position.
• The connection area must point downwards.
• Mount at eye level so that operation states can be read.
• The ambient temperature should be below 40°C to ensure optimum operation.
• Do not expose the inverter to direct solar irradiation as this can cause over-heating and hence
power reduction.
• To avoid audible vibrations in living areas, do not mount the unit on plasterboard walls or
similar. The inverter can make noises when in use which may be perceived as a nuisance in
living areas.
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SMA Solar Technology AG Assembly
• Observe minimum clearances to walls, other
inverters or objects as shown in the diagram in
order to guarantee adequate heat dissipation.
Multiple inverters installed in areas with high ambient temperatures
If necessary, increase the spacing between the individual inverters. In addition, make sure
there is an adequate fresh-air supply to ensure sufficient cooling of the inverters.
Installation Manual WB33-38-IA-IEN120940 17
Assembly SMA Solar Technology AG
4.3 Mounting the Inverter using the Wall Mounting Bracket
CAUTION!
Risk of injury due to the heavy weight of the inverter.
• Bear in mind that the inverter weighs approx. 38 kg
1. Use the wall mounting bracket as a drilling template and mark the positions of the drill holes.
Mounting material
When mounting the wall mounting bracket, use fastening material suitable for the mounting
surface.
2. Use filler-plugs to fill any unused holes in the wall mounting bracket. Insert the filler-plugs into
the wall mounting bracket from the outside (the side that will later be placed against the wall).
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SMA Solar Technology AG Assembly
3. Attach the wall mounting bracket to the wall using
suitable screws and washers.
4. Hook t he inverte r by its top mounti ng plates into the
wall mounting bracket with both attachments of the
wall bracket passing through the cutouts on the
inverter.
5. Visual inspection: The inverter is only correctly
mounted when both rear panel attachments slightly
protrude through the cutouts.
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Assembly SMA Solar Technology AG
6. Secure the inverter in position by screwing the
supplied M6 contact screw into the underside of
the enclosure. Use the contact washer provided
with the toothing facing towards the enclosure.
Tighten the screw with a torque of approx. 5 Nm.
7. Check to ensure that the inverter is securely in place. The wall mounting bracket is designed in
such way that the inverter is tilted slightly backwards on a perfectly vertical wall.
8. Attach the ventilation grids provided to the inverter.
To help you identify the sides,
"links/left" or "rechts/right" is printed on the inside
of the ventilation grids.
☑ The inverter is now mounted.
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SMA Solar Technology AG Electrical Connection
5 Electrical Connection
5.1 Safety
NOTICE!
Electrostatic discharge can damage the inverter
Internal components of the inverter can be irreparably damaged by electrostatic
discharge.
• Earth yourself before touching a component.
5.2 Overview of the Connection Area
5.2.1 Exterior View
The following figure shows the assignment of the individual connection areas on the underside of the
inverter.
Object Description
A Enclosure openings for communication (with filler-plugs)
B DC connectors for connecting the DC cables*
C AC socket for grid connection
* For WB 3300-11 / WB 3800-11, the inverter is fitted with 2 negative and 2 positive DC connectors.
Installation Manual WB33-38-IA-IEN120940 21
Electrical Connection SMA Solar Technology AG
5.2.2 Interior view
The following figure shows the various components and connection areas of the open inverter.
Object Description
A Slot and connection area for communication
B Jumper slot for fan test
C Flat male tab for earthing the cable shield with cable-bound communication
D AC socket for grid connection
E DC connector for connecting the small wind turbine system*
F Enclosure opening with filler-plugs for communication
GVaristors
* For WB 3300-11 / WB 3800-11, the inverter is fitted with 2 negative and 2 positive DC connectors.
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SMA Solar Technology AG Electrical Connection
5.3 Connection to the Electricity Grid (AC)
5.3.1 Conditions for AC Connection
Connection requirements of the network operator
Always comply with the connection requirements of your network operator.
Cable sizing
Use Sunny Design Version 2.0 or higher for sizing the conductor cross-sections
(see Sunny Design program at www.SMA.de/en).
The maximum cable lengths as a function of conductor cross-section are shown in the following table.
Cable cross-section Maximum cable length
WB 3300 / WB 3300-11 /
WB 3300-IT
4 mm² 18.5 m 16 m
Cable requirements
WB 3800 / WB 3800-11 /
WB 3800-IT
Object Description Value
A External diameter 6 mm … 14 mm
B Conductor cross-section 4 mm²
C Stripping length 8 mm
Installation Manual WB33-38-IA-IEN120940 23
Electrical Connection SMA Solar Technology AG
Load disconnect unit
You must install a separate miniature circuit-breaker for each inverter in order to ensure that the
inverter can be securely disconnected under load. The maximum permissible fuse protection can be
found in Section 11"Technical Data" (page69).
Detailed information and examples on the design of miniature circuit-breakers are available in the
Technical Information "Miniature circuit-breakers" to be found in the download area of
SMA Solar Technology AG at www.SMA.de/en.
DANGER!
Danger to life by fire.
When more than 1 inverter is connected in parallel to the same miniature circuit-breaker,
the protective function of the miniature circuit-breaker is no longer guaranteed. It can result
in a cable fire or destruction of the inverter.
• Never connect several inverters to the same miniature circuit-breaker.
• Observe the maximum permissible fuse protection of the inverter when selecting the
miniature circuit-breaker.
DANGER!
Danger to life by fire.
When a generator (inverter) and a load are connected to the same miniature circuitbreaker, the protective function of the miniature circuit-breaker is no longer guaranteed.
The currents from the inverter and the grid can accumulate to form overcurrents that are not
detected by the miniature circuit-breaker.
• Never connect the load between the
inverter and the miniature circuit-breaker
without protection.
• Always protect the load separately.
NOTICE!
Damag e to the inverte r due to use of screw-t ype fuses as load disconnection units
A s cre w-t ype fus e, e .g. DIA ZED fus e or NEO ZED fus e, i s no t a s witch-disconnector and thus
may not be used as a load disconnection unit. A screw-type fuse only acts as cable
protection.
Disconnection under load using a screw-type fuse may damage the inverter.
• Use o nly a switch-di sconnecto r or a mi niature circui t-breaker as a l oad dis conne ction
unit.
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