Safety Precautions - SMA SUNNY CENTRAL 500CP-JP User Manual

2 Safety

2.2 Safety Precautions

This section contains safety precautions that must be observed at all times when working on or with the product.
To prevent personal injury and property damage and to ensure long-term operation of the product, read this section
carefully and follow all safety precautions at all times.
Danger to life from electric shock due to live voltage
High voltages are present in the live components of the Sunny Central. Touching live components results in death or
serious injury due to electric shock.
• When working in a high contact-risk environment, wear personal protective equipment.
• Do not touch any live components.
• Follow the instructions precisely.
• Observe all warning messages on the product and in the documentation.
• Observe all safety precautions of the module manufacturer.
• Provided live voltage is not absolutely necessary, always disconnect the following components from voltage
sources before performing any work on the inverter:
– Line voltage for grid feed-in
– Internal power supply
– DC voltage from the PV array
– Additional external voltages, e.g. control signals from a control room
• Ensure that no disconnected components can be reconnected.
• After disconnecting the Sunny Central from voltage sources, wait at least 15 minutes for the capacitors to
discharge completely before opening the Sunny Central.
• Before working on the Sunny Central, check that all devices are completely voltage-free.
• Ground and short-circuit.
• Cover or isolate any adjacent live components.
Danger to life from electric shock due to live DC cables
DC cables connected to PV modules that are exposed to sunlight carry live voltage. Touching live cables results in death
or serious injury.
• Wear suitable personal protective equipment for all work on the Sunny Central.
Danger to life from electric shock due to ground fault
If a ground fault has occurred, parts of the PV system that are supposedly grounded may in fact be live.
Touching incorrectly grounded components results in death or serious injuries from electric shock.
• Ensure that no voltage is present before touching any components of the PV system.
• Wear suitable personal protective equipment for all work on the Sunny Central.
• The Sunny Central must be installed in a closed operating area.
10 SCCP-JP-BA-A4-en-12
SMA Solar Technology AG
User Manual