ABB REACT 2 Series - Alarm Messages

- 138 -
000908AG
8 - Maintenance
A larm Messages
The equipment can notify errors/warnings and can be checked via web
server user interface.
The following table gives the complete list of errors/warnings relating to string inverters. Some
error/warning codes may not be used depending on the inverter model installed.
- Error code
- Error message
- Warning
Name of Alarm and Cause Solution
- No code
- Ground F
-
(On)
Ground fault of photovoltaic generator:
The alarm is generated when a ground leakage
current is detected in the DC section of the system.
0HDVXUHWKHinsulation resistance using a megohmmeter
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circuited at the negative pole) compared to ground. The
PHDVXUHPHQWLVVWURQJO\LQÀXHQFHGE\WKHHQYLURQPHQWDO
conditions, so must be made under the same conditions in
which the error occurred.
- If the value measured is lower than 1 megaohm, a
check must be carried out by a technician/installer on the
photovoltaic generator to identify and eliminate the problem.
- If the value measured is higher than 1 megaohm and the
error signal persists, contact customer assistance.
- No code
- Missing Grid
-
(On)
Missing Grid:
The inverter does not detect grid voltage (AC side).
&KHFNWKHgrid voltage on the inverter's AC terminal block.
- Should it be absent, check any protection work on the line
and the presence of grid voltage on the supply point.
- No code
- Memory fault
-
ÀDVKLQJVORZ
Memory fault:
The inverter has detected a communication problem
with the memory board on which the inverter saves
the daily value of energy produced.
5HPRYHWKHPHPRU\ERDUGDQGFKHFNWKHZHOGLQJRIDOOWKH
connector's terminals. Subsequently reinsert the memory board
and check that it is correctly inserted into the dedicated slot
- If the signal persists also following the above checks, contact
customer assistance.
- No code
- Waiting Sun
-
ÀDVKLQJVORZ
Waiting Sun:
The inverter goes into the “Waiting Sun” stage when,
following a W001 and/or W002 warning, the voltage
from the photovoltaic generator is less than the
activation voltage (Vstart).
&KHFNWKHinput voltage on the inverter.
- If it does not exceed Vstart, check for the presence of
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- If it exceeds Vstart, contact customer assistance
- W001
- Sun Low
-
(On)
,QVXI¿FLHQWLUUDGLDWLRQ/RZinput voltage on
switching on the inverter):
,QFRUUHFWFRQ¿JXUDWLRQRIWKHPV generator or an “on
WKHOLPLW´FRQ¿JXUDWLRQIRUWKHLQYHUWHUVPLQLPXPinput
voltage.
&KHFNWKHinput voltage on the inverter.
- If it does not exceed Vstart, check for the presence of
VXI¿FLHQWLUUDGLDWLRQDQGWKHFRUUHFWFRPSRVLWLRQRIWKHV\VWHP
- If it exceeds Vstart, contact customer assistance
- W002
- Input UV
-
(On)
,QVXI¿FLHQWLUUDGLDWLRQ/RZinput voltage on
switching off):
,QFRUUHFWFRQ¿JXUDWLRQRIWKHphotovoltaic generator
RUDQ³RQWKHOLPLW´FRQ¿JXUDWLRQIRUWKHLQYHUWHUV
minimum input voltage.
&KHFNWKHinput voltage on the inverter.
- If it does not exceed Vstart, check for the presence of
VXI¿FLHQWLUUDGLDWLRQDQGWKHFRUUHFWFRPSRVLWLRQRIWKHV\VWHP
- If it exceeds Vstart, contact customer assistance
- W004
- Grid OV
-
(On)
Grid overvoltage:
This error signal occurs when during the inverter's
normal operation the grid voltage exceeds the
maximum limit set by the operator.
&KHFNWKHgrid voltage on the inverter.
If the voltage tends to rise (when the inverter is connected),
there is a problem of high line or grid impedance.
&KHFNWKHgrid voltage also on the supply.
- If it is high, it means that there is high grid impedance. In
this case, ask the operator to adjust the grid voltage. If the
operator authorises a change to the inverter's parameters,
agree the new limits with customer assistance
- If the voltage at the point of supply is much lower than that
measured on the inverter, it is necessary to adjust the line
(inverter-contactor).
- If the voltage and the grid frequency come back within the
limits (also when the inverter is connected to the grid), contact
customer assistance
- W005
- Grid UV
-
(On)
Grid undervoltage:
This error signal occurs when during the inverter's
normal operation the grid voltage exceeds the
minimum limit set by the operator.
&KHFNWKHgrid voltage on the inverter.
&KHFNWKHgrid voltage also on the supply.
- If it is high, it means that there is high grid impedance. In
this case, ask the operator to adjust the grid voltage. If the
operator authorises a change to the inverter's parameters,
agree the new limits with customer assistance
- If the voltage at the point of supply is much lower than that
measured on the inverter, it is necessary to adjust the line
(inverter-contactor).
- If the voltage and the grid frequency come back within the
limits (also when the inverter is connected to the grid), contact
customer assistance