Outback Power Systems GS Load Center Installation Manual - Manual (Page 35)

Wiring
900-0123-01-00 Rev C 33
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.
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Figure 29 FN-DC and Wiring Block
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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.
 Attach sense wires to FN-DC wiring
block and plug it into the FN-DC.
 Plug the CAT5 cable into the port
labeled HUB.
2. Connect FNDC wiring to the GSLC.
 The positive (+) and negative (-)
battery voltage sense conductors
should connect directly to the
battery bank.
 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 46 on page 49 for an example of
typical system wiring.
FLEXnet DC GS-SBUS Shunt
screws
Shunt screws
Mounting
screws
Mounting
screws