Fronius String Control 100/12 - Handbuch (Seite 88)

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Max. Energy Devi-
ation The 2 measuring channels record the total current of the respective connected solar mod-
ule strings over the entire charging day. In the evening, the Fronius String Control 100/12
averages all measuring channels and compares the current of each measuring channel
with the average value of all channels. If the Fronius String Control 100/12 detects that one
of the measuring channels deviates too much from the average, a status message is sent
to the Fronius Datalogger.
In the "Max. energy deviation" input field, define the deviation in % from which a measuring
channel should be classified as faulty.
Standard value for max. energy deviation: 5 - 10 %
If applicable, observe information from the solar module manufacturer.
Threshold The minimum average electric charge of all strings in Ah at which the evaluation of the
"max. energy deviation" should be active.
This avoids possible status messages caused by bad weather.