Installation Manual and Specifications

Wiring
900-0123-01-01 Rev A 37
Installing the FLEXnet DC
The OutBack FLEXnet DC (FN-DC), or a similar battery monitor, may be added to the GSLC for
observing DC current flow and providing battery state-of-charge information.
`
Figure 29 FN-DC and Wiring Block
`
Figure 30 Installing the FLEXnet DC
HUB port
Wiring block
To install the FN-DC:
1. Assemble the FN-DC wiring as
shown in the manual for the FN-DC.
o
Attach sense wires to the
FN-DC wiring block and plug it
into the FN-DC.
o
Plug the CAT5 cable into the
port labeled HUB.
2. Connect FN-DC wiring to the GSLC.
o
The positive (+) and negative (-)
battery voltage sense
conductors should connect
directly to the battery bank.
o
The shunt sensing wires should
connect to the screws on each
shunt. It may be necessary to
remove the GS-SBUS to reach
the screws.
3. Mount the FN-DC by inserting it into
the opening to the right of the
inverter disconnects. It may be
necessary to hold it in place.
4. Secure the FN-DC with mounting
screws above and below. Tighten
until secure, but do not over-tighten.
When connecting sensing wires: The end of the
shunt connected to the GS-SBUS is the negative (–)
battery connection and should be wired accordingly.
The other end of the shunt is the “device” or “load”
end and should be wired accordingly.
See the FLEXnet DC manual for more information
on these connections. See Figure 48 on page 55
for an example of typical system wiring.
FLEXnet
DC
GS-SBUS Shunt
screw
Shunt screws
Mounting
screws
Mounting
screws