SMA SUNNY BOY 3.0-US User manual

SUNNY BOY 3.0-US / 3.8-US / 5.0-US /
6.0-US / 7.0-US / 7.7-US
Replacing a Defective Display
SB30-77-1SP-US-40-AT-Display-SG-xx-10 | 105831-00.01 | Version 1.0

Table of Contents
1 Information on this Document................................................. 3
1.1 Validity ............................................................................................... 3
1.2 Target group ...................................................................................... 3
1.3 Symbols.............................................................................................. 3
1.4 Nomenclature.................................................................................... 3
1.5 Typographies..................................................................................... 4
2 Safety Information ................................................................... 5
3 Scope of Delivery..................................................................... 6
4 Disconnecting the Inverter from Voltage Sources................. 7
5 Replacing the Display .............................................................. 9
6 Packing and Returning the Defective Assembly / Disposing
of the Defective Assembly ....................................................... 10
7 Contact ...................................................................................... 11
Table of Contents SMA Solar Technology AG
Service ManualSB30-77-1SP-US-40-AT-Display-SG-xx-102
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1 Information on this Document
1.1 Validity
This document describes how to replace defective components. This document supplements the
documents that are enclosed with each product and does not replace any locally applicable
standards or directives. Read and observe all documents supplied with the product.
This document is valid for the following device types:
• SB3.0-1SP-US-40 (Sunny Boy 3.0-US)
• SB3.8-1SP-US-40 (Sunny Boy 3.8-US)
• SB5.0-1SP-US-40 (Sunny Boy 5.0-US)
• SB6.0-1SP-US-40 (Sunny Boy 6.0-US)
• SB7.0-1SP-US-40 (Sunny Boy 7.0-US)
• SB7.7-1SP-US-40 (Sunny Boy 7.7-US)
1.2 Target group
The tasks described in this document must only be performed by qualified persons. Qualified
persons must have the following skills:
• Knowledge of how an inverter works and is operated
• Training in how to deal with the dangers and risks associated with installing and using
electrical devices and installations
• Training in the installation and commissioning of electrical devices and installations
• Knowledge of the applicable standards and directives
• Knowledge of and compliance with this document and all safety information
1.3 Symbols
Symbol Explanation
Information that is important for a specific topic or goal, but is not
safety-relevant
Indicates a requirement for meeting a specific goal
Desired result
A problem that might occur
1.4 Nomenclature
Complete designation Designation in this document
SunnyBoy Inverter, product
1 Information on this Document
SMA Solar Technology AG
Service Manual 3SB30-77-1SP-US-40-AT-Display-SG-xx-10
ENGLISH

Complete designation Designation in this document
SMA Solar Technology America LLC SMA
SMA Solar Technology Canada Inc.
1.5 Typographies
Typography Use Example
bold • Display texts
• Elements on a user interface
• Terminals
• Elements to be selected
• Elements to be entered
• The value can be found in
the field Energy.
• Select Settings.
• Enter 10 in the field
Minutes.
>• Connects several elements to be
selected
• Select Settings > Date.
[Button]
[Key]
• Button or key to be selected or
pressed
• Select [Next].
1 Information on this Document SMA Solar Technology AG
Service ManualSB30-77-1SP-US-40-AT-Display-SG-xx-104
ENGLISH

2 Safety Information
This section contains safety information that must be observed at all times when working on or with
the product.
To prevent personal injury and property damage and to ensure long-term operation of the product,
read this section carefully and observe all safety information at all times.
Danger to life due to high voltages in the inverter
When exposed to sunlight, the PV array generates dangerous DC voltage which is present in the
DC conductors and the live components of the inverter. Touching the DC conductors or the live
components can lead to lethal electric shocks.
• All work on the inverter must be carried out by qualified persons only. Qualified persons
must at least have the following skills:
– Knowledge of how SMA inverters work and are operated
– Training in how to deal with the dangers and risks associated with installing, repairing
and using electrical devices and installations
– Knowledge of how to safely disconnect SMA inverters
– Knowledge of all applicable laws, standards and directives
• Prior to performing any work on the inverter, disconnect it from all voltage sources as
described in this document (see Section4, page7).
• After disconnecting the inverter from voltage sources, a certain waiting time must be
observed to allow the residual voltages in the DC link of the inverter or in the charging
circuit of the capacitors to discharge. This waiting time is at least ten minutes.
• Do not touch any live components of the inverter.
Risk of burns from hot surfaces
The surface of the inverter can get very hot. Touching the surface can result in burns.
• Mount the inverter in such a way that it cannot be touched inadvertently.
• Do not touch hot surfaces.
• Wait 30 minutes for the surface to cool sufficiently.
• Observe the safety messages on the inverter.
Damage to the inverter due to electrostatic discharge
Touching electronic components can cause damage to or destroy the inverter through
electrostatic discharge.
• Ground yourself before touching any component.
2 Safety Information
SMA Solar Technology AG
Service Manual 5SB30-77-1SP-US-40-AT-Display-SG-xx-10
ENGLISH