SMA WINDY BOY 3300 User manual

WB33-38-IA-IEN120940 | IME-WB3800 | Version 4.0
EN
Wind Power Inverter
WINDY BOY 3300 / 3800
Installation Manual

SMA Solar Technology AG Table of Contents
Installation Manual WB33-38-IA-IEN120940 3
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

Table of Contents SMA Solar Technology AG
4 WB33-38-IA-IEN120940 Installation Manual
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

SMA Solar Technology AG Table of Contents
Installation Manual WB33-38-IA-IEN120940 5
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

Table of Contents SMA Solar Technology AG
6 WB33-38-IA-IEN120940 Installation Manual
12 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
13 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

SMA Solar Technology AG Information on this Manual
Installation Manual WB33-38-IA-IEN120940 7
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.

Information on this Manual SMA Solar Technology AG
8 WB33-38-IA-IEN120940 Installation Manual
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.

SMA Solar Technology AG Safety
Installation Manual WB33-38-IA-IEN120940 9
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 addition, the Windy Boy can be used as inverter for energy converters 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).

Safety SMA Solar Technology AG
10 WB33-38-IA-IEN120940 Installation Manual
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 have problems while performing any of the activities described in this manual, please
contact SMA Solar Technology AG (see Section 13"Contact" (page77)).

SMA Solar Technology AG Safety
Installation Manual WB33-38-IA-IEN120940 11
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
* This function is valid as of firmware version 4.00.
** QR-Code is a registered trademark of DENSO WAVE INCORPORATED.
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" (page62).
Fault or disturbance.
Read Section 9"Troubleshooting" (page56).
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" (page40)).
QR-Code®** for SMA bonus programme
You will find information on the SMA bonus programme at
www.SMA-Bonus.com.

Safety SMA Solar Technology AG
12 WB33-38-IA-IEN120940 Installation Manual
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.
The inverter must not be disposed of together with the household waste. For
more information on disposal, see Section 10.4"Disposing of the inverter"
(page68).
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.

SMA Solar Technology AG Unpacking
Installation Manual WB33-38-IA-IEN120940 13
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.
* For WB 3300-11 / WB 3800-11 2 ⨯ positive, 2 ⨯ negative
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

Unpacking SMA Solar Technology AG
14 WB33-38-IA-IEN120940 Installation Manual
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.

SMA Solar Technology AG Assembly
Installation Manual WB33-38-IA-IEN120940 15
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

Assembly SMA Solar Technology AG
16 WB33-38-IA-IEN120940 Installation Manual
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.

SMA Solar Technology AG Assembly
Installation Manual WB33-38-IA-IEN120940 17
• 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.

Assembly SMA Solar Technology AG
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4.3 Mounting the Inverter using the Wall Mounting Bracket
1. Use the wall mounting bracket as a drilling template and mark the positions of the drill holes.
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).
CAUTION!
Risk of injury due to the heavy weight of the inverter.
• Bear in mind that the inverter weighs approx. 38 kg
Mounting material
When mounting the wall mounting bracket, use fastening material suitable for the mounting
surface.

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Installation Manual WB33-38-IA-IEN120940 19
3. Attach the wall mounting bracket to the wall using
suitable screws and washers.
4. Hook the inverter by its top mounting 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.

Assembly SMA Solar Technology AG
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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.