SMA SUNNY ISLAND 8.0H User manual

SI80H-60H-OffGrid-IA-en-11 | IMEN-SI80H | Version 1.1
EN
Off-grid Inverter
SUNNY ISLAND 8.0H/ 6.0H
Installation Manual

SMA Solar Technology AG Table of Contents
Installation Manual SI80H-60H-OffGrid-IA-en-11 3
Table of Contents
1 Information on this Document. . . . . . . . . . . . . . . . . . . . . . . 9
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.1 Intended Use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2 Qualification of Skilled Persons . . . . . . . . . . . . . . . . . . . . . . . . 13
2.3 Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3 Scope of Delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Sunny Island . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 Type Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.3 Off-Grid Inverter Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . 22
4.4 Sunny Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.5 Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.1 Organising Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.2 Selecting the Mounting Location for the Off-Grid Inverter . . . . 27
5.3 Mounting the Off-Grid Inverter . . . . . . . . . . . . . . . . . . . . . . . . . 30
6 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.1 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . 32
6.2 Organising the Electrical Connection . . . . . . . . . . . . . . . . . . . . 33
6.3 Earthing the TN Off-Grid System . . . . . . . . . . . . . . . . . . . . . . . 35
6.4 Earthing the TT Off-Grid System . . . . . . . . . . . . . . . . . . . . . . . . 35
6.5 Earthing the Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.6 Connecting the BatFuse to the Off-Grid Inverter . . . . . . . . . . . . 37
6.7 Installing Protective Devices for DC Sources. . . . . . . . . . . . . . . 39
6.8 Connecting PE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

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4 SI80H-60H-OffGrid-IA-en-11 Installation Manual
6.9 Connecting the Stand-Alone Grid/Multicluster Box . . . . . . . . . 40
6.10 Connecting an External Energy Source . . . . . . . . . . . . . . . . . . 43
6.11 Inserting Filler-Plugs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
6.12 Installing Protective Devices for Loads . . . . . . . . . . . . . . . . . . . 44
6.13 Installing Protective Devices for AC Sources in the
Stand-Alone Grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.14 Installing Protective Devices for a Generator . . . . . . . . . . . . . . 45
6.15 Connecting the Communication . . . . . . . . . . . . . . . . . . . . . . . . 45
6.15.1 Removing the Cable Feed-Through Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
6.15.2 Connecting the Sunny Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
6.15.3 Connecting the Cable for Internal Communication between Clusters. . . . . . 46
6.15.4 Connecting the Communication to the Sunny Island Charger 50. . . . . . . . . 47
6.15.5 Connecting the Communication of the Multicluster Box . . . . . . . . . . . . . . . . 47
6.15.6 Connecting Control and Measuring Cables for
Multicluster Box. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
6.15.7 Connecting the Cable for Multicluster Communication. . . . . . . . . . . . . . . . . 48
6.15.8 Connecting RS485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
6.15.9 Installing the Cable Feed-Through Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
6.16 Connecting the Battery Temperature Sensor. . . . . . . . . . . . . . . 52
6.17 Connecting the Battery Current Sensor. . . . . . . . . . . . . . . . . . . 53
6.18 Assignment of Multi-Function Relay. . . . . . . . . . . . . . . . . . . . . . 54
6.19 Connecting Control Cables for Autostart Generators. . . . . . . . 56
6.20 Connecting a Signal Generator for Generators
Without Autostart Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
6.21 Connecting GenMan to the Off-Grid Inverter. . . . . . . . . . . . . . 58
6.22 Connecting the Control Cables of the Load-Shedding
Contactors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
6.23 Connecting the Time Control for External Processes. . . . . . . . . 62
6.24 Connecting Message Devices for Events and
Warning Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

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6.25 Connecting the Control Cable for the Battery-Room Fan . . . . . 64
6.26 Connecting the Control Cable for the Electrolyte Pump
of the Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
6.27 Connecting the Control Cable for the Use of Excess Energy . . 65
6.28 Connecting the Auxiliary Contact of the Transfer Switch . . . . . 66
6.29 Connecting the External Generator Request. . . . . . . . . . . . . . . 68
7 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7.1 Organising Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7.2 Checking the Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
7.3 Closing the Off-Grid Inverter. . . . . . . . . . . . . . . . . . . . . . . . . . . 74
7.4 Quick Configuration Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
7.4.1 Determining the Battery Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
7.4.2 Starting the Quick Configuration Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
7.4.3 Configuring Single Operation and Single-Cluster Operation . . . . . . . . . . . . 78
7.4.4 Configuring Multicluster Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
7.5 Switching to Installer Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
7.6 Switching to Expert Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
7.7 Setting Time-Dependent Functions. . . . . . . . . . . . . . . . . . . . . . . 89
7.8 Setting the Time-Controlled Functions . . . . . . . . . . . . . . . . . . . . 89
7.9 Setting Load Shedding in a Multicluster System . . . . . . . . . . . . 89
7.10 Configuration of the Multi-Function Relays . . . . . . . . . . . . . . . . 90
7.10.1 Use of the Multi-Function Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
7.10.2 Setting the Functions of the Multi-Function Relays . . . . . . . . . . . . . . . . . . . . . 91
7.10.3 Setting 1-Level Load Shedding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
7.10.4 Setting 2-Level Load Shedding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
7.10.5 Setting Time-Dependent 1-Level Load Shedding . . . . . . . . . . . . . . . . . . . . . . 93
7.10.6 Setting Time-Dependent 2-Level Load Shedding . . . . . . . . . . . . . . . . . . . . . . 95
7.10.7 Setting Time Control for External Processes . . . . . . . . . . . . . . . . . . . . . . . . . 96
7.10.8 Setting the Control of the Battery-Room Fan . . . . . . . . . . . . . . . . . . . . . . . . . 97
7.10.9 Setting the Use of Excess Energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

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6 SI80H-60H-OffGrid-IA-en-11 Installation Manual
7.11 Changing the Battery Protection Mode . . . . . . . . . . . . . . . . . . 98
7.12 Setting the Resistance of the Battery Cable . . . . . . . . . . . . . . 100
7.13 Commissioning the Battery Current Sensor. . . . . . . . . . . . . . . 101
7.14 Configuring the Limiting Values for the
Generator Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
7.14.1 Changing the Current Limiting Values for the Generator . . . . . . . . . . . . . . 102
7.14.2 Changing the Voltage Limiting Values for the Generator . . . . . . . . . . . . . . 103
7.14.3 Changing the Frequency Limiting Values of the Generator Voltage . . . . . . 103
7.14.4 Changing the Permitted Reverse Power to the Generator. . . . . . . . . . . . . . 104
7.14.5 Setting the Current Limit for the Generator Depending on the Frequency. . . . .104
7.15 Changing the Type of Generator Interface. . . . . . . . . . . . . . . 105
7.16 Configuring Generator Run Times. . . . . . . . . . . . . . . . . . . . . . 105
7.16.1 Changing the Warm-Up Time for the Generator . . . . . . . . . . . . . . . . . . . . 105
7.16.2 Changing the Minimum Run Time for the Generator . . . . . . . . . . . . . . . . . 106
7.16.3 Changing the Shut-Off Delay Time for the Generator. . . . . . . . . . . . . . . . . 106
7.16.4 Changing the Minimum Stop Time for the Generator . . . . . . . . . . . . . . . . . 106
7.17 Configuring the Generator Request . . . . . . . . . . . . . . . . . . . . 106
7.17.1 Changing the Automatic Generator Mode. . . . . . . . . . . . . . . . . . . . . . . . . 106
7.17.2 Changing the State-Of-Charge-Dependent Generator Request . . . . . . . . . 107
7.17.3 Setting Time-Dependent Generator Request . . . . . . . . . . . . . . . . . . . . . . . . 107
7.17.4 Setting Load-Dependent Generator Request. . . . . . . . . . . . . . . . . . . . . . . . 109
7.17.5 Time-Controlled Activation of the Generator. . . . . . . . . . . . . . . . . . . . . . . . 110
7.17.6 Changing the Generator Request Depending on the
Charging Process of the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
7.17.7 Setting the External Generator Request . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
7.18 Setting the Procedure in the Event of an Aborted Start
of the Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
7.19 Changing the Current Limiting Values for the Electricity Grid . . .112
7.20 Changing the Sleep Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
7.21 Setting the Search Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
7.22 Setting the Silent Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

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7.23 Changing the Automatic Frequency Synchronisation . . . . . . . 114
7.24 Functional Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
7.24.1 Testing Communication Interfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
7.24.2 Starting the Off-Grid System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
7.24.3 Testing the Battery Current Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
7.24.4 Testing the Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
7.24.5 Testing Load Shedding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
7.24.6 Testing the Frequency Shift Power Control . . . . . . . . . . . . . . . . . . . . . . . . . 119
7.25 Charging the Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
7.26 Completing Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . 120
8 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
8.1 Disconnecting the Off-Grid Inverter from Voltage Sources . . .121
8.2 Disassembling the Off-Grid Inverter . . . . . . . . . . . . . . . . . . . . 121
8.3 Packing the Off-Grid Inverter . . . . . . . . . . . . . . . . . . . . . . . . . 123
8.4 Disposal of the Off-Grid Inverter. . . . . . . . . . . . . . . . . . . . . . . 123
9 Battery Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
9.1 State of the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
9.1.1 Available Battery Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
9.1.2 Current State of Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
9.1.3 Battery Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
9.2 Charge Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
9.2.1 Charging Phases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
9.2.2 Charging Processes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
9.2.3 Automatic Temperature Compensation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
10 External Energy Sources in the Off-Grid System. . . . . . 129
10.1 Generator as an External Energy Source . . . . . . . . . . . . . . . . 129
10.2 Electricity Grid as an External Energy Source. . . . . . . . . . . . . 129
10.3 Generator and Electricity Grid as External Energy Sources . .129

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10.4 Synchronisation of the Stand-Alone Grid to the
External Energy Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
10.5 Interactions between External Energy Sources and the
Stand-Alone Grid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
10.6 Parameters for the Generator and Electricity Grid . . . . . . . . . 130
10.7 Generator Management of the Off-Grid Inverter . . . . . . . . . . 131
10.7.1 Generator Management Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
10.7.2 Conditions for Generator Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
10.7.3 Generator Run Times. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
10.7.4 Electrical Limiting Values for the Generator . . . . . . . . . . . . . . . . . . . . . . . . 133
10.8 Operating Modes for the Generator . . . . . . . . . . . . . . . . . . . 133
10.9 Operating Procedure for Generator Control . . . . . . . . . . . . . 134
10.9.1 Operating Procedure for Generators with Autostart Function. . . . . . . . . . . 134
10.9.2 Operating Procedure for Generators without an Autostart Function. . . . . . 136
10.9.3 Operating Procedure for Generators with GenMan. . . . . . . . . . . . . . . . . . 138
10.10 Grid Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
10.10.1 Tasks of Grid Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
10.10.2 Electrical Limiting Values for the Electricity Grid . . . . . . . . . . . . . . . . . . . . . 140
10.10.3 Request Conditions for the Electricity Grid . . . . . . . . . . . . . . . . . . . . . . . . . 141
10.11 Operating Modes for the Electricity Grid . . . . . . . . . . . . . . . . 141
10.12 Operating Procedure for Grid Control . . . . . . . . . . . . . . . . . . 142
11 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
12 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
12.1 Sunny Island 8.0H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
12.2 Sunny Island 6.0H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
13 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

SMA Solar Technology AG 1 Information on this Document
Installation Manual SI80H-60H-OffGrid-IA-en-11 9
1 Information on this Document
Validity
This document is valid for the following device types:
•SI8.0H-10
•SI8.0H-11
•SI6.0H-10
•SI6.0H-11
Target Group
This document is intended for skilled persons. Only skilled persons are allowed to perform the tasks
set forth in this document (see Section 2.2"Qualification of Skilled Persons",page13).
Additional Information
Additional information is available at www.SMA-Solar.com:
Symbols
Document title Document type
Battery Management in Off-Grid Systems Technology Brochure 6
Symbol Explanation
Indicates a hazardous situation which, if not avoided, will result in death or
serious injury
Indicates a hazardous situation which, if not avoided, could result in death or
serious injury
Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury
Indicates a situation which, if not avoided, can result in property damage
Information that is important for a specific topic or goal, but is not safety-
relevant
☐ Indicates an essential requirement for achieving a specific goal
☑ Desired result
✖ A problem that might occur

1 Information on this Document SMA Solar Technology AG
10 SI80H-60H-OffGrid-IA-en-11 Installation Manual
Typographies
Nomenclature
Menus are presented as follows: menu number, hash and menu name (e.g. 150# Compact Meters).
Parameters are presented as follows: menu number, full stop, parameter number and parameter name
(e.g. 150.01 GdRmgTm). Parameters include both configurable parameters and parameters for
displaying values.
Typography Usage Example
bold • Display messages
• Parameters
•Connections
•Slots
• Elements to be selected
• Elements to be entered
• Connect PE to AC2Gen/Grid.
• Select parameter
235.01 GnAutoEna and set it to
Off.
>•Several elements that are
to be selected
• Select 600# Direct Access >
Select Number.
[Button/Key] • Key on the inverter that is
to be selected or pressed
•Press [ENTER].
Complete designation Designation in this document
Sunny Island Off-grid inverter
Sunny Boy PV inverter
Sunny Mini Central
Sunny Tripower
Windy Boy Wind power inverter

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Installation Manual SI80H-60H-OffGrid-IA-en-11 11
Abbreviations
Abbreviation Designation Explanation
AC Alternating Current ‒
DC Direct Current ‒
FLA Flooded Lead Acid Batteries ‒
FSPC Frequency Shift Power Control ‒
LED Light-Emitting Diode ‒
MSL Mean Sea Level ‒
PV Photovoltaics ‒
QCG Quick Configuration Guide ‒
SOC State of Charge State of charge of the battery
SOH State of Health Battery capacity still available
VRLA Valve Regulated Lead-Acid ‒

2 Safety SMA Solar Technology AG
12 SI80H-60H-OffGrid-IA-en-11 Installation Manual
2Safety
2.1 Intended Use
The Sunny Island is a bidirectional off-grid inverter and forms a stand-alone grid.
Figure1: Principle of an off-grid system with a Sunny Island and a Sunny Remote Control
The Sunny Island is suitable for use indoors and in outdoor areas that are protected from the elements.
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 for this product.
Only use the Sunny Island in accordance with the information provided in the enclosed
documentation. Any other use may result in personal injury or property damage.
• Do not mount the Sunny Island on flammable construction materials.
• Do not mount the Sunny Island in areas containing highly flammable materials.
• Do not mount the Sunny Island in potentially explosive atmospheres.
The Sunny Island has been designed for use at elevations of up to 3,000 m above MSL.
Life-threatening voltages occur in the Sunny Island.
• Never operate the Sunny Island without the enclosure lid in place.

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AC sources in the stand-alone grid can be used for energy supply. Too much power from the
AC sources in the stand-alone grid can lead to system failures.
• Observe the maximum power from AC sources in the stand-alone grid that can be connected
to the AC1 terminal (see Section 12"Technical Data",page144). In a cluster, the powers of
the individual Sunny Islands are added to yield the total maximum power.
The Sunny Island uses batteries for energy storage. The rated voltage of the battery must correspond
to the DC input voltage. If the battery capacity selected is too low, system failures may result.
• Observe the recommendations for the minimum battery capacity connected to the DC terminal
(see Section 12"Technical Data",page144). For off-grid inverters connected in parallel on the
DC side (clusters), the recommended capacities of the individual Sunny Islands added together
yield yield the total minimum battery capacity.
A fuse-switch-disconnector, – e.g. a BatFuse, must be installed between the battery and the
Sunny Island.
DC loads and DC sources can be integrated into the off-grid system. If DC loads or DC sources other
than Sunny Island Charger 50 are included, a battery current sensor must be installed. The Sunny
Island is not suitable for establishing a DC distribution network.
The Sunny Island is not suitable for supplying life-sustaining medical devices.
• Never use the Sunny Island in systems in which a power outage might result in personal injury.
The Sunny Island can control various components in an off-grid system via two multi-function relays,
e.g. a load-shedding contactor. The multi-function relays are not suitable for controlling functions
which may endanger persons in the event of a malfunction in the multi-function relays – for example,
if there is insufficient redundancy in the ventilation of the battery room.
The enclosed documentation is an integral part of this product.
• Read and observe the documentation.
• Keep the documentation in a convenient place for future reference.
2.2 Qualification of Skilled Persons
Skilled persons must have the following qualifications:
• Training in off-grid systems from SMA Solar Technology AG
• Training in how to deal with the dangers and risks associated with installing and using electrical
devices and batteries
• Training in the installation and commissioning of electrical devices
• Knowledge and observance of the local standards and directives
• Knowledge and observance of this document and all safety precautions

2 Safety SMA Solar Technology AG
14 SI80H-60H-OffGrid-IA-en-11 Installation Manual
2.3 Safety Precautions
Electric Shock
High voltages are present in the off-grid system and in the off-grid inverter. The off-grid inverter can
start automatically from standby. Observe the following safety rules before opening the off-grid
inverter.
• Switch off or disconnect the components in the following order:
– Off-grid inverter
– All loads, AC sources, external energy sources and DC sources
– Miniature circuit-breakers for AC sources and the external energy source in the
sub-distributions
– BatFuse switch-disconnector
• Ensure that the device cannot be reconnected.
• Open the enclosure lid and ensure that no voltage is present.
• Earth and short-circuit the AC conductors.
• Cover or safeguard any adjacent live components.
Explosion
Explosive gases may escape from the battery.
• Protect the surroundings of the battery against open flames, embers or sparks.
• Install, maintain and operate the battery according to the manufacturer's specifications.
• Do not throw batteries into fire.
Acid Burns and Poisoning
If handled inappropriately, electrolyte from the battery can burn the skin or eyes and/or be
poisonous.
• Protect the battery enclosure against destruction.
• Do not open or deform the battery.
• Whenever working on the battery, wear rubber gloves, rubber boots and goggles.
• Rinse acid splashes with clear water and consult a doctor.
• Install, maintain and operate the battery according to the manufacturer's specifications.
Crushing
Moving parts on the generator can crush or sever body parts. The generator can be started
automatically by the off-grid inverter.
• Only operate the generator with the safety equipment.
• Install, maintain and operate the generator according to the manufacturer's specifications.

SMA Solar Technology AG 2 Safety
Installation Manual SI80H-60H-OffGrid-IA-en-11 15
Burn Hazards
Some parts of the enclosure can become hot during operation.
• During operation, touch the off-grid inverter on the enclosure lid only.
Short-circuit currents in the battery can cause heat build-up and electric arcs. Observe the following
safety rules before working on the battery:
• Remove watches, rings and other metal objects.
•Use insulated tools.
• Do not place tools or metal parts on the battery.
Electrostatic Discharge (ESD)
By touching electronic components, you can damage or destroy the off-grid inverter.
• Earth yourself before touching any components.

3 Scope of Delivery SMA Solar Technology AG
16 SI80H-60H-OffGrid-IA-en-11 Installation Manual
3Scope of Delivery
Check the delivery for completeness and any externally visible damage. Contact your specialist
dealer if the delivery is incomplete or damaged.
Figure2: Components included in the scope of delivery
Position Quantity Description
A 1 Sunny Island
B 2 Ventilation grid
C 1 Wall mounting bracket
D 2 Hexagon socket screw M6x10
E2Hexagon socket screw M6x16*
F 2 Hexagon socket screw M8x20
G 2 Conical spring washer M6*
H1Clamping bracket
I 1 Battery temperature sensor
K 2 3-pin terminal
L 2 4-pin terminal
M 1 Cable gland M20
N 1 Counter nut for cable gland M20
O 2 Cable gland M25
P 2 Counter nut for cable gland M25
Q 2 Cable gland M32
R 2 Counter nut for cable gland M32
S 1 Filler-plug M20

SMA Solar Technology AG 3 Scope of Delivery
Installation Manual SI80H-60H-OffGrid-IA-en-11 17
"Communication for RS485" Order Option
The following components are added to the scope of delivery.
Figure3: Components of the "Communication for RS485" order option
T 1 Filler-plug M25
U 1 Black RJ45 data cable CAT5e, 2 m
V 2 Silicone tube 10 mm x 500 mm
W 1 Cable support sleeve for 1 cable
X 2 Cable support sleeve for 2 cables
Y 1 Installation manual, operating manual, Technical description, Parameter
document, document set with explanations and certificates
* 1 spare part for the enclosure lid included
Position Quantity Description
A 1 SI-COMSMA.BGx, installed in the Sunny Island* at the factory
* In the case of a cluster system, the communication interface is only installed in the master.
B 1 Grey RJ45 data cable CAT5e, 5 m
C 1 White RJ45 data cable CAT5e with three wires with stripped insulation
D 1 Screw, installed in the Sunny Island at the factory
E 1 Terminator, plugged into SI-COMSMA.BGx at the factory
Position Quantity Description

3 Scope of Delivery SMA Solar Technology AG
18 SI80H-60H-OffGrid-IA-en-11 Installation Manual
"Communication for Multicluster System" Order Option
The following components are added to the scope of delivery.
Figure4: Components of the "Communication for multicluster system" order option
Position Quantity Description
A 1 SI-SYSCAN.BGx* , installed in the master at the factory
* CAN communication interface
B 1 SI-COMSMA.BGx** , installed in the master at the factory
** RS485 communication interface
C 1 Yellow RJ45 data cable CAT5e, 5 m
D 1 Grey RJ45 data cable CAT5e, 5 m
E 1 White RJ45 data cable CAT5e with three wires with stripped insulation
F 2 Screw, installed in the Sunny Island at the factory
G 2 Terminator, plugged into SI-SYSCAN.BGx and SI-COMSMA.BGx at the
factory

SMA Solar Technology AG 4 Product Description
Installation Manual SI80H-60H-OffGrid-IA-en-11 19
4 Product Description
4.1 Sunny Island
The Sunny Island is a bidirectional off-grid inverter and forms a stand-alone grid.
Figure5: Design of the Sunny Island
The Sunny Island supplies AC loads in the stand-alone grid from a battery or charges the battery with
the energy provided by sources on the AC side. AC sources in the stand-alone grid (e.g. PV inverters)
supply loads and are used by the off-grid inverter to recharge the battery. In order to increase the
availability of the stand-alone grid and reduce the battery capacity, the Sunny Island can use and
control external energy sources (e.g. a generator) as an energy reserve.
The Sunny Island supplies the loads with active power and reactive power. The loads may temporarily
overload the Sunny Island. If there is a short circuit in the stand-alone grid, the Sunny Island also briefly
feeds short-circuit currents into the stand-alone grid. As a result, the Sunny Island may trip the miniature
circuit-breaker. Miniature circuit-breakers only disconnect electric circuits that are affected by the fault.
The off-grid system must be a TN or TT system. The Sunny Island does not support IT systems.
Position Description
A Ventilation grid
BType label
CControl panel
DEnclosure lid

4 Product Description SMA Solar Technology AG
20 SI80H-60H-OffGrid-IA-en-11 Installation Manual
4.2 Type Label
The type label identifies the off-grid inverter. The type label is located on the right-hand side of the
enclosure.
Figure6: Layout of the type label
The information on the type label is intended to help you in the safe use of the off-grid inverter and
will be needed when you contact the SMA Service Line. The type label must remain permanently
attached to the off-grid inverter.
Position Description Explanation
A Type Device type
B Serial No. Inverter serial number
C Device-specific characteristics ‒