Wiring the Inverter

Communications Wiring for Multiple Inverters

Communications wiring between multiple GT Inverters 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 (network cables) 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 GT Inverters. Network connections for multiple inverters are laid out in a “daisy chain” pattern, each device on the network linked together with separate lengths of cable, as shown in Figure 3-11.

Network terminator

Xanbus cable

Network terminator

Figure 3-11Daisy 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.

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