Grid Support Settings - Conext XW+ 6848 NA Owner's Manual

Configuration

Grid Support Settings

3–26
The Grid Support Settings menu contains configuration options for grid-tie
operation. To enable these settings, Grid Support must be enabled in the
Setup menu (see "Conext XW+ Setup Menu" on page 3–2).
In grid support mode, the Conext XW+ supports the utility grid by limiting the
power drawn from the utility to close to zero. This mode is desirable for using
excess energy from auxiliary DC sources like PV, while still maintaining a
charged battery bank. No power is sold to the utility in this mode.
Note: Grid support and sell functions are modes of operation that are subject to
local and/or national grid interconnection requirements in most jurisdictions. It is
the responsibility of the installer and system operator to ensure that all applicable
procedures and technical requirements are complied with before turning on
either of these modes.
Note: Upon startup, the Conext XW+ does not enable grid support functions
for five minutes (300 seconds). During this period the Conext XW+ connects to
AC input and determines whether the utility grid voltage and frequency are
stable and within nominal range. If Grid Support is enabled, the inverter
information panel also displays a 300 second countdown during this period. For
more information, see "Islanding Protection" on page 1–7.
Note: In grid support mode, the Conext XW+ should not draw a large amount
of current from the grid. If the Conext XW+ is drawing more than expected, it is
important to note that it cannot distinguish between real power and reactive
power. Large current draw will only affect reactive power and not real power,
and utility companies generally only charge by real power consumed.
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