Installation manual

Introduction
1–16 975-0601-01-01 Revision B
This manual is for use by qualified personnel only.
Oscillography
The Xantrex GT500 includes a graphic data analysis tool known as oscillography.
The inverter’s firmware continuously records, in the control card’s non-volatile
memory, 500 samples of data at 1 millisecond intervals. Of these, 250 samples
are taken right before a fault detection occurs and 250 samples are taken after
the fault detection. Once a fault detection occurs and the 250 samples are
logged, the log stops and goes into DONE status. As soon as the fault detection
is cleared, the log will clear the data and start recording again.
The following parameter values are stored in the oscillography records:
Communication Interface
The Xantrex RS485/Modbus Communications Kit allows remote users to control
and monitor the status of the Xantrex GT500. For instructions on activating the kit,
see “Activating the Xantrex RS485/Modbus Communications Kit (Optional)” on
page 4–13.
Vab Grid voltage phase A to phase B
Vbc Grid voltage phase B to phase C
Vca Grid voltage phase C to phase A
Ia Grid current phase A, left bridge
Ib Grid current phase B, left bridge
Ic Grid current phase C, left bridge
Ia (2nd) Grid current phase A, right bridge
Ib (2nd) Grid current phase B, right bridge
Ic (2nd) Grid current phase C, right bridge
Grid Hz Grid frequency
DC_V PV array voltage
DC_I PV array current
Fault Hexadecimal code of the fault