SMA SUNNY ISLAND 3.0M Installation And Quick Reference Manual page 10

2 Safety
Risk of burns due to short-circuit currents on the disconnected Sunny Island
The capacitors at the DC connection input area store energy. After the battery is isolated from the Sunny Island, battery
voltage is still temporarily present at the DC terminal. A short circuit at the DC terminal can lead to burns and may
damage the Sunny Island.
• Wait 15 minutes before performing any work at the terminal or on the DC cables. This allows the capacitors to
discharge.
Damage to the battery due to incorrect settings
Incorrect settings can lead to premature aging of the battery. Settings of the parameters in the menu 220# Battery
influence the charging behavior of the Sunny Island inverter.
• Ensure that the values recommended by the battery manufacturer are set for the battery (for the battery technical
data, see the documentation of the battery manufacturer).
Destruction of devices due to electrostatic discharge (ESD)
If enclosure parts are removed, the devices (e.g., Sunny Island or PV inverter) can be damaged or destroyed if
electronic components or terminals are touched.
• Do not touch any electronic components in open devices.
• Ground yourself before touching any terminals.
10 Off-Grid-IS-en-30
SMA Solar Technology AG
Installation - Quick Reference Guide