SMA WINDY BOY 3300 User manual

WB33_38-IEN101830 | IME-WB3800 | Version 3.0
EN
Wind Power Inverter
WINDY BOY 3300 / 3800
Installation Guide

SMA Solar Technology AG Table of Contents
Installation Guide WB33_38-IEN101830 3
Table of Contents
1 Notes on this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Appropriate Usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3 Explanation of Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3.1 Symbols on the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3.2 Symbols on the Type Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 Scope of Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Identifying the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 Mounting the Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2 Selecting the Mounting Location. . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 Mounting the Inverter with the Wall Mounting Bracket . . . . . . 17
5 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . 20
5.2.1 Exterior View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2.2 Interior View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.3 Connection to the Public Grid (AC) . . . . . . . . . . . . . . . . . . . . . 22
5.3.1 Connecting the Inverter to the Public Grid (AC) . . . . . . . . . . . . . . . . . . . . . . 24
5.4 Setting the Display Language . . . . . . . . . . . . . . . . . . . . . . . . . . 27

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4 WB33_38-IEN101830 Installation Guide
5.5 Connecting the Small Wind Turbine System (DC) . . . . . . . . . . 28
5.5.1 Conditions for the DC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.5.2 Assembling the PV connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.5.3 Opening the PV connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.5.4 Connecting the Small Wind Turbine System (DC). . . . . . . . . . . . . . . . . . . . . 32
5.6 Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.7 Setting the Grid and Country Parameters . . . . . . . . . . . . . . . . . 33
5.7.1 Setting the Installation Country . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.7.2 Setting Off-Grid Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.8 Polynomial Characteristic Curve . . . . . . . . . . . . . . . . . . . . . . . . 35
6 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.1 Commissioning the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.2 Self-Test in accordance with DK 5940, Ed. 2.2
(Applies to Italy Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2.1 Starting the Self-Test by Tapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.2.2 Completion of the Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6.3 Operating Conditions of the Inverter . . . . . . . . . . . . . . . . . . . . 42
7 Opening and Closing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.2 Opening the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.3 Closing the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
8 Maintenance and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . 47
8.1 Checking Heat Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
8.1.1 Cleaning the Fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
8.1.2 Checking the Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
8.1.3 Cleaning the Air Grills. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
9 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
9.1 Blink Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
9.2 Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

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Installation Guide WB33_38-IEN101830 5
9.3 Red LED is Glowing Continuously. . . . . . . . . . . . . . . . . . . . . . . 57
9.3.1 Checking the Small Wind Turbine System for a Ground Fault . . . . . . . . . . . 57
9.3.2 Checking the Functioning of the Varistors . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
10 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
10.1 Dismantling the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
10.2 Packing the Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
10.3 Storing the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
10.4 Disposing of the Inverter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
11 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
11.1 Windy Boy 3300 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
11.2 Windy Boy 3800 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
12 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
13 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

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SMA Solar Technology AG Notes on this Guide
Installation Guide WB33_38-IEN101830 7
1 Notes on this Guide
This installation guide describes the assembly, installation, commissioning and maintenance of the
following SMA inverters:
• Windy Boy 3300 (WB 3300)
• Windy Boy 3800 (WB 3800)
Store this guide where it can be accessed at all times.
1.1 Validity
This guide applies to all device types WB3300 and WB3800 with firmware version 2.94, and later.
1.2 Target Group
This guide is for qualified personnel. The tasks described in this guide may only be performed by
qualified personnel.
1.3 Additional Information
You will find further information on special topics such as designing a line circuit breaker or the
description of the operating parameters in the download area at www.SMA.de/en.
Refer to the user manual for detailed information on operating the inverter.

Notes on this Guide SMA Solar Technology AG
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1.4 Symbols Used
The following types of safety precautions and general information are used in this guide:
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 that can result in property damage if not avoided.
Information
Information provides tips that are valuable for the optimal installation and operation of
your product.
☑ This symbol indicates the result of an action.

SMA Solar Technology AG Safety
Installation Guide WB33_38-IEN101830 9
2 Safety
2.1 Appropriate Usage
The Windy Boy is a wind power inverter, which converts rectified current of a small wind turbine
system into AC current and feeds this energy into the public grid, domestic grid or the
SunnyIslandsystem.
Principle of a Small Wind Turbine System with Windy Boy
Furthermore, the Windy Boy can be used as an inverter for power conversion units 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 the generator must have his
plant approved for operation with this Windy Boy (see also the Windy Boy planning guidelines in the
download area at www.SMA.de/en).
When designing the system, ensure that the permitted operating range of all components is
maintained at all times. Also use appropriate protective measures to ensure that the maximum
permissible input voltage of the inverter is not exceeded. SMA Solar Technology AG offers you the
corresponding components, such as the Windy Boy Protection Box (overvoltage protection for
windpower inverters including the rectifier).

Safety SMA Solar Technology AG
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2.2 Safety Precautions
2.3 Explanation of Symbols
This section contains an explanation of all symbols found on the inverter and type label.
2.3.1 Symbols on the Inverter
DANGER!
Electric shock due to high voltages in the inverter when connecting the device.
Death or serious injury.
• All work on the inverter may be carried out by qualified personnel only.
• The appliance is not to be used by children or persons with reduced physical,
sensoryor mental capabilities, or lack of experience and knowledge, unless they
have been given supervision or instruction.
• Children should be supervised to ensure that they do not play with the appliance.
• Work on the inverter must only be carried out as described in this guide.
• All safety instructions listed 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's enclosure during operation.
Problems while performing the described activities
If you have problems while performing any of the activities described in this guide, contact
SMA Solar Technology AG (see section13”Contact” (page70)).
Symbol Explanation
Operation display.
Indicates the operation condition of the inverter.
Ground fault or varistor defective.
There is either a ground fault in the system, or at least one of the varistors
inside the inverter is defective.
An error has occurred.
Read the installation guide and the user manual to remedy the malfunction.
Tap to switch on the display light and switch to the next message.

SMA Solar Technology AG Safety
Installation Guide WB33_38-IEN101830 11
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 may be
carried out by qualified personnel 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 with household waste. For more
information on disposal, see section10.4”Disposing of the Inverter”
(page62).
CE mark.
The inverter complies with the requirements of the applicable
ECguidelines.
RAL quality mark for solar products.
The inverter complies with the requirements of the German Institute for
Quality Assurance and Labeling.
The inverter has a transformer.
Direct Current (DC).
Alternating Current (AC).
The inverter is protected against penetration by dust particles and water
jets from any angle.

Unpacking SMA Solar Technology AG
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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 Air grills (1x left, 1x right)
D 5 Sealing plugs for wall mounting bracket
E 2 Cylinder head screw and contact disk (M6)
F 1 AC coupling socket: socket unit, protective cap for socket unit,
threadedsleeve, sealing ring, clamping nut.
G 6 PV connectors (3 x positive / 3 x negative)
H 6 Sealing plugs for PV connectors
I 1 Jumper for communication / fan test
K 1 Installation Guide
L1User Manual
M 1 Set of documents with explanations and certificates
N 1 Supplementary sheet with inverter factory settings

SMA Solar Technology AG Unpacking
Installation Guide WB33_38-IEN101830 13
3.2 Identifying the Inverter
You can identify the inverter using the type label. The type label is on the right side of the enclosure.
On the type label you will find the type (Type/Model) and the serial number (Serial No.) of the
inverter.

Mounting the Device SMA Solar Technology AG
14 WB33_38-IEN101830 Installation Guide
4 Mounting the Device
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 areas with a risk of explosion.
CAUTION!
Danger of burn injuries due to hot enclosure parts.
• Do not touch the enclosure during operation.
CAUTION!
Risk of injury due to the heavy weight of the inverter.
• Note that the inverter weighs approx.38kg.

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Installation Guide WB33_38-IEN101830 15
4.2 Selecting the Mounting Location
Observe the following conditions during mounting:
• The installation method and mounting location must be suitable for the inverter's weight and
dimensions.
• Mount on a solid surface.
• The mounting location must at all times be clear and have safe access without the use of
additional aids such as scaffolding or lifting platforms. Any possible service actions are
otherwise limited.
• Mount vertically or tilted backward by max. 45°.
• Never mount the device with a forward tilt.
• Do not mount in a horizontal position.
• The connection area must point downward.
• Install at eye level to allow operating state to be read at all times.
• The ambient temperature should be below 40°C to ensure optimal operation.
• Do not expose the inverter to direct sunlight to avoid a power reduction due to excessive
heating.
• In living areas, do not mount the unit on plasterboard walls or similar to avoid audible
vibrations. The inverter can make noises when in use which may be perceived as a nuisance in
a living area.

Mounting the Device SMA Solar Technology AG
16 WB33_38-IEN101830 Installation Guide
• Observe the minimum clearances to walls, other
inverters or objects as shown in the diagram in
order to guarantee sufficient heat dissipation.
Multiple inverters installed in areas with high ambient temperatures
If necessary, increase the clearances between the individual inverters. In addition, make
sure there is enough ventilation to ensure sufficient cooling of the inverters.

SMA Solar Technology AG Mounting the Device
Installation Guide WB33_38-IEN101830 17
4.3 Mounting the Inverter with the Wall Mounting Bracket
1. Use the wall mounting bracket as a drilling template and mark the positions of the drill holes.
2. Fill in holes that are not required in the wall mounting bracket using the sealing plugs. Insert the
sealing 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.
• Note that the inverter weighs approx.38kg.
Mounting material
When mounting the bracket, use fastening material suitable for the mounting surface.

Mounting the Device SMA Solar Technology AG
18 WB33_38-IEN101830 Installation Guide
3. Attach the wall mounting bracket to the wall using
appropriate screws and washers.
4. Mount the inverter with the upper fastening plates
on the wall mounting bracket so that both plates on
the upper edge of the bracket pass through the
cutouts on the inverter.
5. Visual inspection: The inverter is only correctly
mounted when both rear panel mounting plates
slightly protrude through the cutouts.

SMA Solar Technology AG Mounting the Device
Installation Guide WB33_38-IEN101830 19
6. Secure the inverter in position by screwing the
supplied M6 contact screw, located on the
underside of the enclosure. Use the contact
washers provided with the toothing against the
enclosure. Tighten the screw with a torque
ofapprox. 5Nm.
7. Check to ensure that the inverter is firmly fastened. The wall mounting bracket is designed so
that the inverter tilts backward slightly on a perfectly vertical wall.
8. Attach the air grills provided to the inverter. To help
you identify the sides, "links/left" or "rechts/right" is
printed on the inside of the air grids.
☑ The inverter is now mounted.

Electrical Connection SMA Solar Technology AG
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5 Electrical Connection
5.1 Safety
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 bottom of the
inverter.
NOTICE!
Electrostatic discharges can damage the inverter.
Internal components of the inverter can be irreparably damaged by static discharge.
• Before you touch a component inside the inverter, ground yourself by touching
agrounded object.
Object Description
A Enclosure openings for communication (with dummy plugs)
B PV connectors for connecting the DC cables
C AC socket for grid connection