SMA SI 5048 - Page 59

SMA Solar Technology AG Initial Commissioning
Technical Description SI5048-TEN093630 59
7. Connect the battery current sensor cables correctly again, as shown on the graphic.
Make sure the wires have the correct polarity when doin this.
– BatCur+ to terminal 1
– BatCur − to terminal 2
8. Start the Sunny Island (see section 9.1”Activation” (page60)).
9. Check the current direction: "120.06 TotBatCur"
Current direction: Discharging the battery
• No generator/grid connected
• Loads are being supplied
The value of the battery current is positive.
Current direction: Charging the battery
• Generator/grid connected
• Loads are not/are marginally supplied
• Battery is being charged
The value of the battery current is negative.