Xantrex Technology GT3.0 - Manual (Page 66)

Wiring the Inverter
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Communications Wiring for Inverters in Parallel
Communications wiring between GT Inverters mounted in parallel allows
information about each inverter and its associated PV array to be communicated
between all of the inverters in the system. Information about the entire system can
be displayed on any inverter LCD in the system.
For example, in a two-inverter system, if inverter #1 is producing 1500 W and
inverter #2 is producing 2000 W, both inverters display a total system power of
3500 W. The cumulative energy produced by both inverters that day is also
displayed.
You can still view information for an individual inverter in a system. See “To view
unit-specific screens in a multiple unit system:” on page 5–5.
Without communications wiring each inverter in a system will only display
information pertinent to the unit and its associated PV array.
Xanbus Network Technology
GT Inverters use Xanbus technology to communicate with other inverters in
parallel. Communications wiring between inverters is laid out in a “daisy chain”
pattern, each device on the network linked together with separate lengths of cable,
as shown in Figure 3-7.
For more information on installing a Xanbus network, see the Xanbus System
Installation Guide, available at www.xantrex.com.
Figure 3-7 Daisy Chain Layout
CAUTION: Equipment damage
Connect only Xanbus-enabled devices.
Although the cabling and connectors used in this network system are the same as ethernet
connectors, this network is not an ethernet system. Equipment damage may result from
attempting to connect Xanbus to different systems.
Xanbus-enabled
Device 1
Xanbus-enabled
Device 2
Xanbus-enabled
Device 3
Terminator Terminator