Operation
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Operator Interface
The purpose of the operator interface is to provide a means of communicating
critical operational information to and fro m the unit. This communication occurs
between the operator and the UFCU Keypad and LCD display or between the
operator and a personal computer running the Xantrex Solar GUI software.

UFCU Keypad Operation and LCD Display

The UFCU keypad is located on the front of the Main Inv erter Enclosure to
manipulate and view system operatio n and status.
The keypad is comprised of 20 touch-sensit ive, peizio electric keys that provide a
means to navigate through the menus and alter user-c hangeable settings.
• Four function keys are available.
• F1 - While in the READ Menu, this key is used to clear faults.
In the WRITE Menu, it jumps to set “
Goal
:”.
• F2 - While in the READ Menu, this key jumps to displa y “
INV A Volts
”.
While in the WRITE Menu, this key jumps to display “
Max AC Volts %
”.
• F3 - While in the READ Menu, this key jumps to display “
PV Volts:
”.
While in the WRITE Menu, this key jumps to display “
Input #0:
”.
• F4 - While in the WRITE Menu, when commanding a goal state, this
function key confirms the change in goal s tate.
• Two Navigation keys are available.
•\/ or /\ moves forward or backward wi thin the menu structure. Upon
reaching the end of the menu, it will roll-over t o the beginning of the
same menu.
• Ten numeric keys (0 through 9), two symbol keys (“.” and “-”), and an
“ENTER” key are available for entering user-setta ble parameters.
• The “MENU” key allows you to enter the passw ord-protected Write
parameters.
Figure 2-2
The Universal Front Panel Control Unit(UFCU) and LCD
LCD Display
UFCU Keypad
System: PWR Tracking
Inv: Online
Pv: Online
Goal : PWR Tracking
Standard Display