Error Messages; Table 6 Error Troubleshooting - Alpha OutBack Power Radian Series Operator's Manual

Error Messages

An error is caused by a critical fault. In most cases when this occurs, the unit will shut down.
A MATE3-class system display will show an event and a specific error message. This screen
is viewed using the Home screen's soft keys. (See the system display literature for more
instructions.) One or more messages will display Y (yes). If a message says N (no), it is not the
cause of the error.
NOTE : The Radian has no external indicators. It requires a system display to identify an error.
Some errors will reset automatically when the cause is resolved. These are noted.
It is possible to clear errors by resetting the inverter. To reset, turn the inverter off and then on.
Other possible steps are shown below. Each should be followed by resetting the inverter.
Message Causes
Low Output Inverter's AC regulation cannot be maintained
Voltage under high load conditions.
NOTE : The GS8048A can maintain only 4
kVA on L1 when L2 has loads between 0 and 4
kVA (at 25°C). The opposite is also true. The
GS4048A has similar limits at half this wattage.
AC Output Inverter exceeded its maximum surge current
Shorted due to severe overload.
AC Output Usually indicates another AC power source
Backfeed (out of phase with the inverter) was connected
to the unit's AC output.
Stacking Error Programming problem among stacked units.
(Occurs if master inverter was not designated.)
Can also occur if AC Output Backfeed occurs.
DC voltage is below the low battery cut-out
Low Battery V
3
set point, usually due to battery discharge.
It occurs after 5 minutes at this voltage.
This error can be triggered by other causes.
It can appear along with Low Output Voltage,
AC Output Shorted, or AC Output Backfeed.
3
High Battery V DC voltage exceeded acceptable level. See
page 21.
Over Inverter has exceeded its maximum allowed
3
Temperature operating temperature. See page 53.
Comm Fault The inverter has suffered an internal
communication failure.
Loose DC Neg Loose DC connection on left (L) or right (R)
Terminals internal power module.
(L or R)
Battery Voltage Internal sensing has detected battery voltages
Sense below 32 Vdc or above 64 Vdc.
AC Relay Fault AC transfer relay damaged.
This error will clear automatically when the cause of the error is resolved. The inverter will begin functioning again when this occurs.
3
900-0161-01-01 Rev B
Table 6 Error Troubleshooting
Troubleshooting
Possible Remedy
Check loads and measure current draw.
Remove loads as necessary.
Check the loads and wiring. This issue is
usually the result of a wiring problem (a short),
as opposed to a poorly-sized load.
Disconnect the AC O wires from the
UT
inverter. Check the wires (not the inverter)
with an AC voltmeter. If an AC source is
present, shut it off.
Check stacking programming and
designation of master. (See page 36.)
Check for output backfeed from an external
source. Disconnect output if necessary.
If this error accompanies other errors, treat
those conditions as appropriate.
If it occurs by itself: Recharge the
batteries. The error will clear automatically
if an AC source is connected and the
charger turns on.
Check the charging source. This problem is
usually the result of external charging.
Allow the inverter to remain off to reduce the
temperature, or add external cooling.
Unit may be damaged and requires repair.
Tighten all DC connections between inverter
and battery. If the error is not resolved, unit
may be damaged and requires repair.
If these readings are not correct, unit may be
damaged and requires repair.
Unit may be damaged and requires repair.
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