SMA SUNNY ISLAND SIC40-MPT, Technical Description

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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