Terminal Assignment For Grounded Solar Modules - Fronius String Control 250/25 DCD DF Bedienungsanleitung

Notes for
Connecting
Solar Module
Strings to the
Fronius String
Control 250/25
DCD DF
(continued)
Recommended sequence for inserting and connecting DC cables
Terminal assi- For grounded solar modules, only the ungrounded poles of the solar
gnment for module strings may be connected to the fuse-protected terminals (A).
grounded
solar modules
Negative solar module ground
Positive solar module ground
25
+
6
5
4
3
2
1
25 5
4
3
2
6 1
-
+
DC-
B (in) B' (out) A' (out)
DC+
B (in) B' (out) A' (out)
15
25
-
6
5
4
3
2
1
5 25
4
3
2
1 6
DC+
A (in)
DC-
A (in)