SMA SUNNY ISLAND SIC40-MPT Parts list manual

Charge controller
SUNNY ISLAND CHARGER
Technical Description
SIC40-TEN081110 | 98-2005210 | Version 1.0 EN

SMA Solar Technology AG Table of Contents
Technical Description SIC40-TEN081110 3
Table of Contents
1 Notes on this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Validity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Target Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Storage of the Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Symbols Used. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Appropriate Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2 General Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 Unpacking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Checking for Transport Damage . . . . . . . . . . . . . . . . . . . . . . . 11
3.3 Identification of the Charge Controller . . . . . . . . . . . . . . . . . . 12
4 Mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Selection of Mounting Location . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1.1 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1.2 Ambient Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1.3 Safety Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1.4 Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5 Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.1 Overview of the Connection Area . . . . . . . . . . . . . . . . . . . . . . 18
5.2 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2.1 Grounding the Charge Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2.2 Grounding the Battery and the PV System. . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.3 PV Generator (DC) Connection . . . . . . . . . . . . . . . . . . . . . . . . 21
5.4 Battery Connection (DC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Table of Contents SMA Solar Technology AG
4SIC40-TEN081110 Technical Description
5.5 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.5.1 Installing the Communication Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.5.2 Connection of the Communication Interface . . . . . . . . . . . . . . . . . . . . . . . . 26
5.6 Additional Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.6.1 Signalling Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.6.2 Battery Temperature Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6 (First) Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.1 Configuration of the Charge Controller. . . . . . . . . . . . . . . . . . 31
6.1.1 Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.1.2 Battery System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.1.3 Device Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.1.4 Battery Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
6.2 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7 Opening and Closing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7.1 Opening the Charge Controller. . . . . . . . . . . . . . . . . . . . . . . . 34
7.2 Closing the Charge Controller. . . . . . . . . . . . . . . . . . . . . . . . . 34
8 Battery Management and Charge Control . . . . . . . . . . . 35
8.1 SMA Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8.2 Stand-alone Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9 Maintenance and Cleaning. . . . . . . . . . . . . . . . . . . . . . . . 36
9.1 Replacing the Thermal Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2 Cleaning the Cooling Fins . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
10 Parameter Lists on the Sunny Island . . . . . . . . . . . . . . . . 37
10.1 Display Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
10.2 Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
10.3 Error (Warnings) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

SMA Solar Technology AG Table of Contents
Technical Description SIC40-TEN081110 5
11 Explanation of the LEDs (With Codes) . . . . . . . . . . . . . . . 41
11.1 Multicolored LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
11.2 Internal LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
12 Decommissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
12.1 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
12.2 Packaging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
12.3 Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
12.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
13 Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
14 Contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

SMA Solar Technology AG
6SIC40-TEN081110 Technical Description

SMA Solar Technology AG Notes on this Manual
Technical Description SIC40-TEN081110 7
1 Notes on this Manual
The manual describes how to install, commission and service the Sunny Island Charger.
1.1 Validity
This manual applies to the following Sunny Island Charger type:
• SIC40-MPT
The device type of your charge controller is specified on the type label as shown in section 3.3
"Identification of the Charge Controller" (Page 12).
1.2 Target Group
This manual is intended for installers and users.
1.3 Storage of the Manual
All manuals for the device and for the installed components must be stored in the immediate vicinity
of the charge controller, and must be accessible at all times.

Notes on this Manual SMA Solar Technology AG
8SIC40-TEN081110 Technical Description
1.4 Symbols Used
The following types of warnings and general information appear in this document as described
below.
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.

SMA Solar Technology AG Safety Precautions
Technical Description SIC40-TEN081110 9
2 Safety Precautions
2.1 Appropriate Usage
The charge controller is a DC/DC converter that reduces the direct current of the PV generator to
the direct current of a battery in order to charge it.
The charge controller can be operated in two different operating modes:
Principle of a Sunny Island system equipped with a charge controller
The charge controller may only be operated with PV generators (modules and cabling) of
protection class II. Do not connect any energy sources other than PV modules to the charge
controller.
As soon as you begin planning the PV system, ensure that the values comply with the permitted
operating range of all components at all times.
SMA operation Stand-alone operation
The "SMA" operating mode must be selected if
the charge controller is operated in a system
equipped with a Sunny Island 5048/2012 or
2224.
The "Stand-alone" operating mode must be
selected if the charge controller is operated in a
stand-alone grid system equipped with a
Sunny Island 3324/4248 or without a
Sunny Island.
Section 6.1.1 "Operating Mode" (Page 31) explains how to set the operating mode.
Battery
Charge controller
Sync bus
(CAN)
Generator
Sunny Boy
Sunny Island

Safety Precautions SMA Solar Technology AG
10 SIC40-TEN081110 Technical Description
The maximum open circuit voltage of the PV generator may not be greater than the maximum input
voltage of the charge controller (140 V), even at very low ambient temperatures. During operation,
the PV generator voltage must always be at least 5 V higher than the battery voltage. The charge
controller is suitable for battery currents up to maximum 40 A at 48 V and 50 A at 24 V/12 V
nominal battery voltage.
The suitability of a PV generator for the charge controller primarily depends on the output voltage
and output power of the PV generator. In this regard, observe the limits specified by the module
manufacturer.
Appropriate usage also includes observing all the documentation.
2.2 General Safety Instructions
DANGER!
Danger to life due to high voltages in the charge controller.
• All work on the charge controller must only be carried out by a qualified electrician.
CAUTION!
Danger of burn injuries due to hot housing parts.
• Do not touch the housing of the charge controller during operation.
PV generator ground connection
Observe all local requirements for grounding the PV generator. SMA recommends
connecting the generator frame and other electricity conducting surfaces such that there
is continuous conduction and to connect them to the ground in order to reach maximum
protection for property and persons.