5
Safety EN
WARNING! Incorrect operation or poorly executed work can cause serious injury or damage. Only qua-
lified staff are authorised to commission your inverter and only within the scope of the respective techni-
cal regulations. Read the safety rules before commissioning the equipment or carrying out maintenance
work.
WARNING! An electric shock can be fatal. Danger due to grid voltage and DC voltage from solar modu-
les that are exposed to light.
- Ensure that both the AC side and the DC side of the inverter are de-energised before carrying out
any connection work.
- Only an authorised electrical engineer is permitted to connect this equipment to the public grid.
WARNING! An electric shock can be fatal. Danger due to grid voltage and DC voltage from solar modu-
les.
- The DC main switch is only to be used to de-energise the power stage set. The connection area is
still live when the DC main switch is switched off.
- Ensure that the power stage set and connection area are disconnected from one another before
carrying out any maintenance or service tasks.
- The power stage set, which is enclosed in a separate housing, must only be disconnected from the
connection area when in a de-energized state.
- Maintenance and servicing in the power stage set of the inverter must only be carried out by Fronius-
trained service technicians.
WARNING! An electric shock can be fatal. Danger due to residual voltage in capacitors. Wait for the ca-
pacitors to discharge. The discharge time is five minutes.
WARNING! An inadequate ground conductor connection can cause serious injury or damage. The
housing screws provide a suitable ground conductor connection for grounding the housing and must
NOT be replaced by any other screws that do not provide a reliable ground conductor connection.
WARNING! Shoddy workmanship can cause serious injury and material damage. A surge protective de-
vice must only ever be installed and connected by a qualified electrical engineer. Follow the safety rules.
Ensure that both the AC side and the DC side of the inverter are de-energised before carrying out any
installation and connection work.
Fire prevention
CAUTION! Risk of damage to inverters and other live photovoltaic system components due to poor or
unprofessional installation.
Poor or unprofessional installation can cause overheating of cables and terminal connections and result
in arcs. These can cause heat damage, which in turn may lead to fires.
Observe the following when connecting AC and DC cables:
- Tighten all terminals to the torque specified in the Operating Instructions
- Tighten all grounding terminals (PE / GND), including free ones,
to the torque specified in the Operating Instructions
- Do not overload cables
- Check cables for damage and verify that they are laid correctly
- Take note of the safety instructions, Operating Instructions and
any local connection regulations
Using fastening screws, always screw the inverter firmly to the
mounting bracket to the torque specified in the Operating Instruc-
tions.
Ensure that the fastening screws are tight before starting the inver-
ter!
3
2
2.5 Nm
1
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