Wiring the Inverter

RS-232 cable

To connect your computer to the GT Inverter, you must use a serial DB9 “straight

requirements

through” cable.

 

The RS-232 connector on the GT is configured as follows:

 

•

Pin 2: transmit

 

•

Pin 3: received

 

•

Pin 5: ground.

All other pins are unused.

To connect a single GT Inverter to a personal computer:

WARNING: Shock hazard

Before opening the GT Inverter wiring/disconnect box, turn OFF the breaker switches connected to the GT Inverter AC output, and turn the DC/AC Disconnect switch to the OFF position. Hazardous voltage will still be present on the DC input (PV) terminals located under the clear plastic insulation barrier. Do not remove the insulation barrier during this procedure. To reduce the risk of shock, cover the array with an opaque (dark) material.

1.Feed the male end of the serial cable through a side conduit hole on the GT Inverter.

If the end of the serial cable is too large to fit through the conduit hole, you may need to use two DB9 to CAT 5 adaptors. Plug the DB9 end of the adapter into the GT Inverter, and feed the CAT 5 end of the cable out the conduit hole. Use another adapter to convert the CAT 5 end of the cable back to DB9.

2.Plug the male end of the serial cable into the GT Inverter RS-232 port.

3.Plug the female end of the serial cable into your computer’s serial port.

4.Replace the wiring/disconnect box cover.

5.Turn the DC/AC disconnect switch to the ON position and turn the main utility panel breaker switches ON.

When power is restored to the GT Inverter, you can run GT-View on your computer to monitor the inverter’s operation.

Note: In multiple installations, GT-View monitors only the inverter to which the computer is connected. However, if the inverters are connected with a Xanbus network cable, GT-View will display total system wattage and the accumulated daily energy produced by all inverters. To monitor multiple inverters, you require multiple DB9 cable connections (one per inverter) to your computer.

For more information about GT-View, see the GT-View User Manual, included with the GT-View software.

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