SMA SUNNY ISLAND 3.0M Operating Manual page 10

2 Security
Danger to life from electric shocks due to live voltage and risk of injury from short-circuit currents
High voltages are present inside the Sunny Island. When the enclosure lid is removed, live components can be touched,
which can result in death or serious injury due to electric shock. Short-circuit currents in the battery can cause heat
build-up and electric arcs. Burns or eye injuries due to flashes may result.
• When carrying out any work on the electrical installation, wear suitable personal protective equipment.
• Switch off or disconnect the following components in the following order:
– Sunny Island
– The control and measurement voltages in the distribution board of the Sunny Island circuit breakers
– Load-break switch of the battery
• Ensure that the system cannot be reconnected.
• Open the enclosure lid of the Sunny Island and ensure that no voltage is present.
• Ground and short-circuit the AC conductors outside the Sunny Island inverter.
• Cover or isolate any adjacent live components.
Danger to life from electric shock due to damaged Sunny Island
Operating a damaged Sunny Island can lead to hazardous situations that can result in death or serious injuries due to
electric shock.
• Operate the Sunny Island only when it is technically faultless and in an operationally safe state.
• Regularly check the Sunny Island for visible damage.
• Make sure that all external safety equipment is freely accessible at all times.
• Make sure that all safety equipment is in good working order.
Risk of crushing injuries due to movable generator parts
Moving parts in the generator can crush or sever body parts. A generator can be started automatically by the
Sunny Island.
• Operate the generator only with the safety equipment.
• Install, maintain, and operate the generator according to the manufacturer's specifications.
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 on the DC connection can lead to burns and may
damage the Sunny Island.
• Wait 15 minutes before performing any work at the DC connection or on the DC cables. This allows the capacitors
to discharge.
Risk of burns due to hot components
Some components of the Sunny Island can get very hot during operation. Touching these components can cause burns.
Heat build-up can cause burns.
• During operation, do not touch any parts other than the enclosure lid of the Sunny Island.
• When the Sunny Island is open, do not touch any hot surfaces.
10 SI30M-44M-60H-80H-BE-en-32
SMA Solar Technology AG
Operating Manual