Battery Management; Safety When Setting The Battery Management Parameters; Adjusting The Battery Management To The Battery - SMA SUNNY ISLAND 3.0M Installation Manual

8 Commissioning
Multifunction relay
Relay 1 of Slave 2
Relay 2 of Slave 2
Procedure:
1. Log in to the communication product as Installer (see the user manual of the communication product) or switch to
expert mode on the Sunny Remote Control (see the Sunny Island operating manual).
2. Set the parameter for the multifunction relay functions as shown in the table above.

8.2 Battery Management

8.2.1

Safety When Setting the Battery Management Parameters

This section contains safety information to be observed when configuring the battery management. To prevent property
damage and to ensure the long-term operation of the product, read this section carefully and observe all safety
information.
Damage to the battery due to incorrect settings
The set battery parameters influence the charging behavior of the Sunny Island inverter. The battery can be damaged
by incorrect settings of the battery type, nominal voltage and capacity parameters.
• Ensure that the values recommended by the battery manufacturer are set (refer to the technical data of the battery
in the manufacturer documentation). Note that the battery charging behavior names used by
SMA Solar Technology AG and the battery manufacturer may, in some cases, differ in meaning (for the battery
charging behavior of the Sunny Island inverter, see technical information "Battery Management").
• Set the battery capacity for a ten-hour electric discharge (C10) The battery manufacturer specifies the battery
capacity in relation to discharge time.
8.2.2

Adjusting the Battery Management to the Battery

For further information relating to the battery management and the charging behavior of the Sunny Island inverter, see
the technical information "Battery Management" on the supplied CD.
You can set the parameters for battery management on the communication product or on the Sunny Remote Control.
Procedure:
1. Log in to the communication product as Installer (see the user manual of the communication product) or switch to
expert mode on the Sunny Remote Control (see the Sunny Island operating manual).
2. To set the parameters for battery management on the Sunny Explorer, click on the tab Settings on the
Sunny Explorer and select the group Battery > Charge.
3. Select the parameter Maximum battery charging current / 222.01 BatChrgCurMax and set it to the
maximum battery charging current recommended by the battery manufacturer.
4. Set the parameters for boost charge:
• Select the parameter Time for boost charge of battery / 222.02 AptTmBoost and set to the boost-charge
absorption time recommended by the battery manufacturer.
• Select the parameter Cell charge setpoint voltage for boost charge / 222.07 ChrgVtgBoost and set it to
the cell-voltage setpoint recommended by the battery manufacturer for boost charge.
72 SI30M-44M-60H-80H-IA-en-32
Parameter
245.01 Rly1OpSlv2
245.02 Rly2OpSlv2
Value
SMA Solar Technology AG
Function/output
Installation manual