Outback Power Systems GS3548E Operators Manual - Manual (Page 56)

Troubleshooting
54 900-0145-01-01 Rev A
Table 6 Troubleshooting
Symptom Possible Cause Possible Remedy
Will not sell power to
the utility grid.
Grid-tied function has been
manually disabled. MATE3 system display only: Check the Grid-Tie Enable setting in
the Grid-Tie Sell menu. Confirm it is set to Y.
Grid Tied mode not in use on
the appropriate input.
MATE3 system display only: Check the Inverter part of the Settings
menu to see if Grid Tied mode is in use. Confirm that it has been
selected for the correct Radian input terminals.
AC source does not meet
requirements; this item is
usually accompanied by
disconnecting from the
utility grid when in
Grid Tied
mode.
Verify grid voltage and frequency. Determine if they are within
the inverter’s approved limits. If not, the inverter is operating
correctly. Contact the utility company if necessary.
MATE3 system display only: The program limits are found in the
inverter’s Grid Interface Protection menu. See the Grid Tied
mode beginning on page 15 for more information on this menu.
The inverter has other criteria
besides the AC source which
must be met, such as the
qualifying time.
MATE3 system display only: Check Sell Status screen using the
Home screen’s soft keys. The inverter may be operating correctly.
Depending on the conditions which need to be met, the delay
may be temporary,
The inverter will perform the
Offset function before
attempting to sell.
Output loads can consume all excess renewable power if they are
large enough. (The Offset function “sells to the loads.” Turn off
some output loads and observe the sell operation.
Loads drop out or
crash during transfer.
Erratic AC source voltage. Check AC voltage on the inverter’s input test points. (See
page 51.) If not consistent, the problem is external.
MATE3 system display only: AC source voltage may have dipped or
hovered at a low enough point to crash a sensitive load before
the inverter could take over. This can happen if the inverter’s Grid
AC Input Voltage Limits or Gen AC Input Voltage Limits were
turned down to accommodate a problematic AC source. To make
the inverter respond sooner, raise the lower limit setting in the
appropriate menu. (If this setting was intentional, then no action
is required.)
Inverter set to Search (Search
mode).
The unit will take a moment to come out of Search mode after
transferring.
MATE3 system display only: If constant power is required, set
to ON with the INVERTER hot key. (If this setting was
intentional, then no action is required.)
Loads sensitive to inverter’s
transfer time. UPS mode not in
use on the appropriate input.
MATE3 system display only: Most of the inverter’s input modes
feature a small but noticeable response time during transfer.
Certain loads (such as highly sensitive computers) may not
respond well. The UPS input mode has a faster response time.
Select this mode for the appropriate input. (See page 17.)
Loads too large. The unit can transfer more power than it can invert. If loads are
oversized, the unit will falter or crash when switching to batteries.
Reduce the size of the loads.
Undersized battery cables. Battery cables smaller than recommended will cause a significant
voltage drop when switching to batteries, acting like either an
overload or a low-battery condition. Size all cables correctly.