SMA SI 4548-US User Manual
Page 73
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SMA America, LLC
8 Commissioning
Operating Manual
SI4548-6048-US-BE-en-20
73
Make sure the insulated conductors have the correct polarity.
– BatCur+ to terminal 1
– BatCur– to terminal 2
9. Start the Sunny Island (see Section 9.1 "Switching On", page 74).
10. Check the current direction: "120.06 TotBatCur"
Current direction: Discharging the battery
• No generator/utility grid connected
• Loads are being supplied
The measured value of the battery current is positive.
Current direction: Charging the battery
• Generator/utility grid connected
• Loads are not/marginally supplied
• Battery is being charged
The measured value of the battery current is negative.
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