Fronius String Control 100/12 Benutzerhandbuch
Seite 69
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67
EN-US
Terminal assign-
ment for ground-
ed solar modules
For grounded solar modules, only the ungrounded poles of the solar module strings may
be connected to the fuse-protected terminals (A).
Example of termi-
nal assignment
for grounded so-
lar modules
Assignment for solar module ground at the negative
pole
Assignment for solar module ground at the positive
pole
Connecting Solar
Module Strings to
the Fronius String
Control 100/12
Negative solar module ground
DC-
DC+
B (in)
B‘ (out)
A‘ (out)
A (in)
Positive solar module ground
DC+
DC-
B (in)
B‘ (out)
A‘ (out)
A (in)
-
+
(
B
)
(
A
)
(
B‘
) (
A‘
)
(
B
)
(
A
)
+
-
(
B‘
) (
A‘
)
(B)
(A)
1
(A)
(C)
2
(A)
Tightening torque 2.0 Nm
(B)
Tightening torque 1.5 Nm
(C)
Tightening torque 2.0 Nm
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