56
WARNING! An electric shock can be fatal. Normally grounded
conductors may be ungrounded and energized when a ground
fault is indicated. The ground fault has to be repaired before
operation is resumed.
Solar Module
Ground at
Positive Pole
(continued)
Safety
Solar Module
Ground at
Positive Pole:
Connecting
combined
Solar Module
Strings using
a DC String
Input Combi-
ner
1
1
2
1
Conduit
NOTE Do not connect the ground to the DC positive at any
point! This is already done within the Fronius IG Plus. If the DC
positive is connected to ground at the DC terminal block or prior,
this will circumvent the GFDI protection system, preventing your
Fronius IG Plus from properly detecting a fault current. Additional-
ly, turning the DC disconnect to the off/open-circuit condition will
not disconnect the array from ground, as it only disconnects the
DC negative.
WARNING! An electric shock can be fatal. Inadequately sized
electrical components can cause serious injuries to persons
and damage to (or loss of) property.
- Electrical installations must be in accordance with the Nati-
onal Electrical Code, ANSI/NFPA 70, and any other codes
and regulations applicable to the installation site.
- For installations in Canada the installations must be done in
accordance with applicable Canadian standards.
- Use copper wire for all grounding wires
- For appropriate grounding see NEC Section 250.
- 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.