Oscillography - Xantrex GT100 Series Planning And Installation Manual

Oscillography

The GT100 includes a graphic data analysis tool known as Oscillography. The inverter
firmware continuously records, in the CCU2 non-volatile memory, 500 samples of data
at 1 millisecond intervals. Of these, 250 samples are taken right before a fault occurs and
250 samples are taken after the fault. Once a fault occurs and the 250 samples are
logged, the log stops and goes into DONE status. The log will start recording again as
soon as the fault is cleared. Oscillography requires the use of a PC connection using the
GT View Graphic User Interface (GUI) software or via the RS485/Modbus connection.
The following is the list of parameters which instant values shall be stored in the
oscillography records:
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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
Ib - Grid current phase B
Ic - Grid current phase C
Grid Hz - Grid frequency
DC_V - PV array voltage
DC_I - PV array current
Fault - hexadecimal code of the fault
This manual for use by qualified installers only
Communication Features and Methods
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