ABB TRIO-20.0-TL-OUTD-S-US-480

T011C5
- 75 -
5 - Troubleshooting
Display Message Causes Solution
E009
Internal fault
(Internal error)
Internal error Error inside the inverter that cannot be checked
externally. If the problem persists (after switching the
inverter off and then on again), contact ABB technical
support.
E010
Bulk UV
(Low Bulk Voltage)
Voltage at a specic part of
inverter input circuit is not
sufcient for grid connection.
The alarm can be triggered by
causes external to the inverter --
a low inverter input voltage (just
above the activation voltage)
that is not accompanied by
sufcient availability of power
from the photovoltaic array
(typical condition of periods of
insufcient sunlight).
If the error warning appears sporadically, it can
be attributed to causes external to the inverter
(insufcient sunlight, and therefore little power
available from the PV array).
If the problem appears systematically even in
conditions of high sunlight and with input voltage
signicantly higher than the activation voltage, contact
ABB technical support.
E011
Ramp Fail
(Bulk ramp timeout)
Error inside the inverter regard-
ing the time for starting steady
state operation of the DC-DC
circuit part (Boost).
It can be caused by an external
string voltage too low or due to
reduced power from PV arrays
(typically in the morning).
If the alarm is present early in the morning, it could
be useful to increase the starting voltage to allow the
grid connection of the inverter when more power is
available from the PV array. If the problem persists
(after switching the inverter off and then on again),
contact ABB technical support.
E012
Internal error
(Boost module er-
ror revealed by in-
verter module)
Error inside the inverter
regarding the operation of the
DC-DC circuit part (Boost).
Error inside the inverter that cannot be checked
externally. If the problem persists (after switching the
inverter off and then on again), contact ABB technical
support.
E013
Wrong input mode
(Wrong input
mode-parallel
instead of
independent)
The alarm is generated only
when the inverter is congured
with parallel inputs. In this
particular conguration, the
inverter carries out the input
voltage check of each of the two
channels, and the alarm is raised
if the two voltages differ by more
than 20Vdc.
Make sure the setting of the “IN MODE” switch has
been intentionally positioned on “PAR” and that the
jumpers have been inserted between the two input
channels.
If the conguration of the inverter is correct, check
that the input strings have the same number of
modules in series, of the same make and with the
same inclination/orientation.
If both the conguration of the inverter and the
characteristics of the PV array comply with the
specications, contact ABB technical support.