Schüco SUNNY BOY Series User manual

User Manual
PV Inverters SUNNY BOY
SUNNY MINI CENTRAL

SMA,Sunny, Sunny Boy, Sunny Central, Sunny Island, Sunny Backup, Sunny Beam,
Sunny Design, Sunny Portal, Sunny WebBox, Multi-String, OptiCool, H5, grid guard,
Power Balancer are registered trademarks of SMA Solar Technology AG.
SB_SMC_Schueco-BEN093730 | TBEN-ALL-K9A

SMA Solar Technology AG Table of Contents
User Manual SB_SMC_Schueco-BEN093730 3
Table of Contents
1 Notes on this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Area of Validity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Symbols Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Appropriate Usage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Identifying the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Operating Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Activating the Display Illumination . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Initial Phase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.1 All LEDs are on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3.1 All LEDs are off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3.2 The green LED is continuously on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3.3 The green LED is blinking slowly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3.4 The green LED is blinking rapidly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3.5 The green LED goes out briefly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4 Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.4.1 The red LED is continuously on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.4.2 The Red LED is blinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.4.3 The yellow LED is continuously on. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.4.4 The yellow LED blinks twice. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4.5 The yellow LED blinks 3 times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4.6 The yellow LED blinks 4 times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4.7 The yellow LED blinks 5 times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4.8 The yellow LED blinks 6 times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Table of Contents SMA Solar Technology AG
4SB_SMC_Schueco-BEN093730 User Manual
3.4.9 The yellow LED blinks 7 times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4 Information on the Display . . . . . . . . . . . . . . . . . . . . . . . . 24
4.1 Display Messages in the Startup Phase . . . . . . . . . . . . . . . . . . 24
4.2 Display Messages During Operation . . . . . . . . . . . . . . . . . . . . 25
4.2.1 Display Messages when Fault Warnings Occur. . . . . . . . . . . . . . . . . . . . . . 25
4.2.2 Display Messages for Plant Disturbances . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.2.3 Rapid Blinking of Background Illumination . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5 Maintenance and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . 27
5.1 Checking Heat Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.1.1 Cleaning the Cooling Fins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.1.2 Cleaning the Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.2 Cleaning the Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6 Measurement Channels and Messages . . . . . . . . . . . . . . 28
6.1 Measuring Channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.2 Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.3 Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
8 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

SMA Solar Technology AG Notes on this Manual
User Manual SB_SMC_Schueco-BEN093730 5
1 Notes on this Manual
This manual contains instructions on how to operate the SMA inverters Sunny Boy and Sunny Mini
Central. Store this manual where it will be accessible at all times.
1.1 Area of Validity
This manual applies to the following SMA inverters:
1.2 Target Group
This manual is for the user of the inverter types listed in the section "Area of Validity".
1.3 Additional Information
For information on assembly, installation, commissioning and servicing of the inverter, as well as for
the device-specific technical data, please refer to the attached installation guide.
You will find further information on special topics, such as details of the operating parameters, in the
download area at www.SMA.de/en.
Sunny Boy Sunny Mini Central
SB 1100
(discontinued model)
SMC 4600A
SMC 5000A
SB 1200
(available on request)
SMC 6000A
SMC 6000TL
SB 1700SB 1700 SMC 7000HV
SB 2100TL SMC 7000HV-11
(available on request)
SB 2500
SB 3000 SMC 7000TL
SB 3300TL HC SMC 8000TL
SB 3300 SMC 9000TL-10
SB 3800 SMC 9000TLRP-10
SMC 10000TL-10
SMC 10000TLRP-10
SMC 11000TL -10
SMC 11000TLRP-10

Notes on this Manual SMA Solar Technology AG
6SB_SMC_Schueco-BEN093730 User Manual
1.4 Symbols Used
The following types of safety instructions 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 that can result in property damage if not avoided.
Information
Information provides tips that are valuable for the optimum installation and operation of
your product.

SMA Solar Technology AG Safety
User Manual SB_SMC_Schueco-BEN093730 7
2 Safety
2.1 Appropriate Usage
The Sunny Boy / Sunny Mini Central is a solar inverter which converts the DC current of the PV
generator to AC current and feed it into the public grid.
More precise information on this subject and on your device can be found in the installation guide.
The operational limits specified in the installation guide for the particular inverter must be observed.
All inverters may only be operated with PV generators (modules and cabling) of Protection Class II
rating. Do not connect any sources of energy other than PV modules to the inverter.
Do not use the inverter for purposes other than those described here. Alternative uses, modifications
to the inverter or the installation of components not expressly recommended or sold by the
manufacturer void the warranty claims and operating permission. If you have questions regarding the
proper usage of the inverters, please contact the SMA Solar Technology Serviceline.
Principle of the string inverter
The string inverter is used to connect a small number of series-connected solar modules (strings) to the
public supply grid. This way, even a large PV generator can be constructed from a large number of
individual strings, each having its own string inverter. The energy is then combined on the AC side.
Principle of a grid-connected PV system with a Sunny Boy
Public grid
PV-Modules Distribution
Sunny Boy

Safety SMA Solar Technology AG
8SB_SMC_Schueco-BEN093730 User Manual
Principle of a grid-connected PV system with a Sunny Mini Central

SMA Solar Technology AG Safety
User Manual SB_SMC_Schueco-BEN093730 9
2.2 Safety Precautions
DANGER!
High voltages in the inverter. Death resulting from electric shock and burns.
The following work on the inverter must be carried out by a qualified personnel only.
• Electrical installation
• Repairs
• Modifications
Even when no external voltage is applied, high voltages can still be present in the device.
These high voltages can result in death or serious injury.
CAUTION!
Enclosure body can get hot during operation. Risk of burn injuries. Do not touch.
The temperature of some parts of the inverter enclosure – in particular the temperature of
the heatsinks – can reach over 60 °C in normal operation.
• Only touch lid and display during operation.
NOTICE!
Overvoltages in the inverter Destruction of the inverter and voiding of warranty
claims.
• Please contact your installer whenever the inverter reports an error.

Safety SMA Solar Technology AG
10 SB_SMC_Schueco-BEN093730 User Manual
2.3 Identifying the product
You can identify the inverter by the type plate. The type
plate is usually located on the right side of the enclosure.
The type plate specifies among other things the device
type (Type / Model), the serial number (Serial No.) and
the device-specific key data of the product.
The type plate illustrated here is a typical example
showing the Sunny Boy 3800.
outdoor
Manufactured by
Sonnenallee 1
34266 Niestetal, Germany
SMA Solar Technology AG
*2000165882*
Photovoltaic inverter made by SMA Solar Technology AG
Type
Art. No.
SB 3800
Serial No.
2000165882
Sunny Boy ®
Schüco International KG
Karolinenstraße 1-15
33609 Bielefeld, Germany
VDC max
VDC MPP
IDC max
VAC nom
fAC nom
PAC nom
I
500 V
200-400 V
20 A
230 V
50/60 Hz
3800 W
16.5 A
1
xxx
cos j
AC nom