Installation manual

Communication Features and Methods
153396 Revision D 1–15
This manual is for use by qualified installers only
Communication Features and Methods
The Xantrex GT250 provides three types of information to the user:
• system status and/or fault information,
• data logging information, and
• oscillography.
System status and fault information can be accessed using the Universal Front
Panel Control Unit (UFCU), via an RS232 connection to a PC or via an RS485/
Modbus connection to a remote monitoring system. Data logging and
oscillography is available via the RS232 or the RS485/Modbus connection.
The Xantrex GT250 communicates system status information to the user using
the following methods.
• The Front Panel Control Unit (UFCU) Display
• PC Connection (Remote) - Xantrex GT View Graphic User Interface (GUI)
Software required (may require additional hardware)
• External Monitoring - (Optional) via an RS485/Modbus connection for remote
plant monitoring.
System Status and Fault Reporting
Basic system status and all fault conditions rising from within the Xantrex GT250
are reported to the UFCU. The 4-line VFD will display a hexadecimal value and a
brief text description of the fault. Additionally, the CCU2 stores the time and
details of all faults in non-volatile memory for later retrieval.
The fault value is also made available to the Xantrex GT View Graphic User
Interface (GUI) via the RS232 connection and the RS485/Modbus protocol and
will include a more extensive description of the fault.
The UFCU keypad is located on the left door to manipulate and view system
operation and status. The keypad is comprised of 20 membrane switch keys that
provide a means to navigate through the menus and alter user-settable settings.
See the Xantrex GT250 Grid-Tied Photovoltaic Inverter Operation and
Maintenance Manual (Part #: 153395) for details.
Types of status information include:
• Current Operating State or Goal State
• Fault Code (if applicable)
• Inverter State
• Line Voltage and Current
• Inverter Matrix Temperature
• Inverter Power
• PV State
• PV Voltage and Current
• PV Power
• Grid Frequency
• Peak Power Tracker Enabled