Hawke’s Bay
Manual
14| P a g e 1 0 - 4 2 5 - 1 R E V : - F W : X X X
AF/GF Sub-board (Figure 6)
LEDs on the sub-board indicate:
•
After boot-up (power on),
D2 (green)
should flash to indicate device is ready and working.
•
If
D6 (red)
is flashing slowly, the device is either defective or coils aren't plugged in.
•
If
D1 (red)
is on solid, then a GF is present.
•
If
D5 (red)
is on solid, then an AF is present.
Arc Fault
The NEC requires that a PV system DC circuit operating at 80VDC or greater must be protected
by an arc fault (AF) circuit interrupter. The Options Board satisfies this NEC requirement. There
are no adjustments to be made for the AF system, other than ON or OFF. In the event the
Hawke’s Bay
detects an AF, the charge controller will shut down with audible and visual AF
indications. The AF issue must be remedied before the controller can resume operations. Clear
the AF, then power cycle the
Hawke’s Bay
off then back on.
Connecting the AF/GF sub-board to the Options Board:
1.
The AF/GF sub-board (purple) connects to the top half of the
Options Board. (
Figure 7
)
2.
Align pins on sub-
board to the Option Board’s receptacle,
and
3.
Align plastic support rod on Options Board to the associated
hole in the sub-board.
4.
Gently seat the pins into the receptacle and the plastic support
through the hole.
Connecting the AF toroid to the Options Board:
1.
AF toroid shown in
Figure 8
.
2.
Connect AF toroid to Options Board.
3.
Pass the
PV-
cable through the AF toroid,
Figure 9
.
Figure 7
Figure 8
D2
Gr
Figure 6
D5
Re
D1
D6
Re
d
