SMA SMC 4600A Installation - Manual (Page 34)

Electrical Connection SMA Solar Technology AG
34 SMC46-60A11-IA-en-81 Installation Manual
5.5 Connecting the SMA Power Balancer
The Sunny Mini Central is equipped with the SMA Power Balancer as standard. This enables a
circuitry of three Sunny Mini Central inverters to a three-phase feed-in system.
Each of the three Sunny Mini Central inverters in a group must be connected to a different line
conductor of the low-voltage grid (L1, L2 and L3).
By activating this electronic circuit, you can stipulate how the other two Sunny Mini Central inverters
are to react if there is a device fault with the third Sunny Mini Central or there is a mains voltage fault
in its line conductor.
The connections for the SMA Power Balancer are galvanically isolated from the rest of the
Sunny Mini Central electronic circuit.
5.5.1 Configuration
If the national standard VDE-AR-N4105-MP or VDE-AR-N4105-HP is set, the SMA Power Balancer is
activated by default and set to the operating mode "PowerGuard" in SMC 4600A-11,
SMC 5000A-11 and SMC 6000A-11. All other national standards deactivate the
SMA Power Balancer by default in SMC 4600A-11, SMC 5000A-11 and SMC 6000A-11.
The SMA Power Balancer is always deactivated by default in SMC 4600A, SMC 5000A and
SMC 6000A, regardless of the national standard set.
The SMA Power Balancer can only be activated or configured using a communication product.
To change the "PowerBalancer" parameter, you need a personal access code – the so-called
SMA Grid Guard code. The application form for the personal access code is available in the
download area at www.SMA-Solar.com, in the "Certificate" category of the respective inverter.
The configuration options are described below.
Three-Phase Grid Connection
For further information on this subject, see the Technical Information "Three-Phase Grid
Connection with Sunny Mini Central" in the download area at www.SMA-Solar.com.