Connecting Solar Module Strings To The Inverter; Safety - Fronius Symo Series Installation Instructions Manual

Connecting solar module strings to the inverter

Safety

Danger due to incorrect operation and incorrectly performed work.
This can result in serious injury and damage to property.
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Danger due to grid voltage and DC voltage from solar modules that are exposed to
light.
This may result in an electric shock.
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Danger due to grid voltage and DC voltage from solar modules.
This may result in an electric shock.
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Danger due to incorrectly tightened terminals.
This may result in heat damage to the inverter, which may lead to fire.
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Danger due to overloading.
This may result in damage to the inverter.
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WARNING!
Only qualified staff are authorised to commission your inverter and only within the
scope of the respective technical regulations.
Read the Installation and Operating Instructions before installing and commissioning
the equipment.
WARNING!
Ensure that both the AC side and the DC side of the inverter are de-energised be-
fore carrying out any connection work.
Only an authorised electrical engineer is permitted to connect this equipment to the
public grid.
WARNING!
The DC main switch is only to be used to de-energise the power stage set. The con-
nection 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 an-
other before carrying out any maintenance or service tasks.
The power stage set, which is enclosed in a separate housing, must only be discon-
nected from the connection area when in a de-energized state.
Maintenance and servicing in the power stage set of the inverter must only be car-
ried out by Fronius-trained service technicians.
CAUTION!
When connecting AC and DC cables, ensure that all the terminals are tightened to
the specified torque.
CAUTION!
Fronius Symo: The maximum amperage when connecting to a single DC terminal is
33 A.
Fronius Eco: The maximum amperage when connecting to a single DC terminal is
15 A.
Connect the DC+ and DC- cables to the DC+ and DC- terminals on the inverter, tak-
ing care to ensure that the polarity is correct.
Observe the maximum DC input voltage.