General; Explanation Of Safety Notices; Device Concept - Fronius Primo 3.0-1 Instructions De Service

General

Explanation of
safety notices
Indicates a potentially hazardous situation.
▶
Indicates a situation where damage could occur.
▶
NOTE!
Indicates a risk of flawed results and possible damage to the equipment.
If you see any of the symbols depicted in the "Safety rules" chapter, special care
is required.

Device concept

The inverter has been developed exclusively for use in grid-connected photovol-
taic systems; it is impossible to generate energy independently of the public grid.
The inverter automatically monitors the public grid. In the event of abnormal grid
conditions, the inverter ceases operating immediately and stops feeding power
into the grid (e.g. if the grid is switched off, if there is an interruption, etc.).
The grid is monitored by monitoring the voltage, frequency and islanding condi-
tions.
The inverter operates fully automatically. As soon after sunrise as there is suffi-
cient energy available from the solar modules, the inverter starts monitoring the
grid. When insolation has reached a sufficient level, the inverter starts feeding
energy into the grid.
The inverter operates in such a way that the maximum possible amount of power
is obtained from the solar modules.
As soon as the power available has fallen below the level at which energy can be
8
WARNING!
If not avoided, death or serious injury may result.
CAUTION!
If not avoided, minor injury and/or damage to property may result.
Device design:
(1) Housing cover
(2) Inverter
(3) Mounting bracket
(4) Connection area incl. DC main
switch
(5) Data communication area
(6) Data communication cover
The inverter transforms the direct cur-
rent generated by the solar modules
into alternating current. This alternat-
ing current is fed into the public grid
synchronously with the grid voltage.