Example: "Limit per Phase" (setting value: 2,000 W
Load demand in the household
network [W]
2,000 3,000 5,000 10,000
Load coverage in the household
network via PV system [W]
1,000 3,000
Purchase from the public grid
[W]
1,000 2,000 4,000 7,000
"Total DC power of the Entire System"
Input field for the total DC system power in Wp.
If there are multiple Fronius inverters, this value is used when the "Maximum
Grid Feed-In Power" is specified in %.
"Maximum Grid Feed-In Power"
Input field for the "Maximum Grid Feed-In Power" in W or % (setting range: -10
to 100%).
If there is no meter in the system, the inverter limits the power of feeding in to
the set value. Activate the function "Reduce inverter power to 0% if meter con-
nection has been lost." for control in the event of a Fail-Safe.
Example: Export Limitation
(without consideration of the efficiency)
PV system to Fronius inverter 5,000 W
Loads in the house 1,000 W
Maximum grid feed-in power 60% = 3,000 W
Case 1: The battery can be charged
Power at grid feed-in point 0 W
Power at inverter output 1,000 W
Power into the battery 4,000 W
Case 2: The battery cannot be charged
Power at grid feed-in point 3,000 W
Power at inverter output 4,000 W
Power into the battery 0 W
In this example, no more than 3,000 W may be fed into the public grid at the
grid feed-in point. However, any loads that are located between the inverter
and the grid feed-in point can be supplied by additional power from the invert-
er.
"Soft Limit"
If this value is exceeded, the inverter will regulate down to the set value within
the time required by national standards and regulations.
"Hard Limit Trip"
If this value is exceeded, the inverter switches off within max. 5 seconds. This
value must be higher than the value set for "Soft Limit".
127
To Next Page
Loading...
