Solar Module Ground At Positive Pole: Inserting String Fuses Into The Fronius Ig Plus - Fronius IG Plus 3.0-1 Operating Instructions Manual

Solar Module
Ground at
Positive Pole:
Connecting
Solar Module
Strings
(continued)
Important
-
-
Solar Module Important The Fronius IG Plus is shipped with conductive slugs in the
Ground at fuseholders. Series fusing may be required depending on the type of PV
Positive Pole: module used in the system. See NEC 690.9.
Inserting
String fuses
1
into the Froni-
us IG Plus
Set the jumper from the 'SM
correct measurement results
Check the polarity and voltage of the solar module strings: the DC-
voltage must not exceed 600 V, the difference between the individual
solar module strings should be less than 10 V.
Select string fuses according to the information from the solar module
manufacturer or as per 'Criteria for the Proper Selection of String
Fuses' (max. 20 A per single DC input terminal)
Important
- Follow all solar module safety instructions
- Follow all solar module manufacturer requirements
SM
' position to the 'SM
ON
12 10
3
SM
ON
51
ON
SM
OFF
' position for
OFF
SM
1
OFF