13
EN-US
Protection of Persons and Equipment
Safety
Protection of Per-
sons and Equip-
ment
The design and function of the inverter offer a maximum level of safety, both during instal-
lation as well as operation.
The inverter provides operator and equipment protection through:
a) galvanic isolation
b) monitoring the grid
Galvanic isolation The inverter is equipped with a high frequency transformer that ensures galvanic isolation
between the DC side and the grid, thus ensuring the highest possible safety.
Monitoring the
Grid
Whenever conditions in the electric grid are inconsistent with standard conditions (for ex-
ample, grid switch-off, interruption), the inverter will immediately stop operating and inter-
rupt the supply of power into the grid.
Grid monitoring is carried out using:
- Voltage monitoring
- Frequency monitoring
- Monitoring islanding conditions
Information on
"Field Adjustable
Trip Points" and
"Advanced Grid
Features"
The inverter is equipped with field adjustable trip points and advanced grid features. For
further information, please contact Fronius technical support at the following e-mail ad-
dress: pv-us-support@fronius.com.
WARNING! An electric shock can be fatal. Danger from grid voltage and DC volt-
age from solar modules.
- The connection area should only be opened by a licensed electrician.
- The separate power stage set area should only be disconnected from the
connection area after first being disconnected from the grid power.
- The separate power stage set area should only be opened by Fronius-trained
service personnel.
Never work with live wires! Prior to all connection work, make sure that the AC
and DC wires are not charged.
WARNING! If the equipment is used or tasks are carried out incorrectly, serious
injury or damage may result. Only qualified personnel are authorized to install
your inverter and only within the scope of the respective technical regulations. It
is essential that you read the "Safety regulations" chapter before commissioning
the equipment or carrying out maintenance work.
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