49
3
1
3
5
2
4
LOAD
LINE
4
1
3
2
4
3
1
LOAD
LINE
+
-
After disconnecting the DC filter wire:
-
Connect the red DC+ wire to the DC- filter terminal as per step 4
-
Connect the black DC- wire to the DC+ filter terminal as per step 4
NOTE
Identify the reversed polarity accordingly with (+) and (-)
at the DC input terminal blocks.
Solar Module
Ground at
Positive Pole:
Connecting
Solar Module
Strings
Wire Cross
Section of
Solar Module
Strings
(continued)
WARNING!
An electric shock can be fatal. Inadequately sized
electrical components can cause serious injuries to persons
and damage to (or loss of) property.
-
Use minimum AWG 14 to maximum AWG 6, min. 167°F
(75°C), copper wire for all DC wiring connections to the
Fronius IG Plus. Voltage drop and other considerations may
dictate larger size wires be used.
-
Use only solid or stranded wire. Do not use fine stranded
wire.
NOTE
Only use water tight conduit fittings and conduits.
Conduit fittings and conduits are not part of the scope of delivery
for the inverter.
Conduit
black
red
red
black
1.33 ft. lb.
Summary of Contents for IG Plus 12.0-3
Page 2: ......
Page 4: ...ud_fr_st_et_01382 012008...
Page 6: ......
Page 16: ...6...
Page 17: ...7 General Information...
Page 18: ...8...
Page 24: ...14...
Page 25: ...15 Installation and Startup...
Page 26: ...16...
Page 80: ...70...
Page 81: ...71 Operation...
Page 82: ...72...
Page 122: ...112...
Page 123: ...113 Troubleshooting and Maintenance...
Page 124: ...114...
Page 149: ...139 Appendix...
Page 150: ...140...