Alarm Messages - ABB REACT 2 Series Product Manual

A
larm Messages
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 Name of Alarm and Cause
- Warning
- No code Ground fault of photovoltaic generator:
- Ground F The alarm is generated when a ground leakage
- (On) current is detected in the DC section of the system.
- No code
Missing Grid:
- Missing Grid
The inverter does not detect grid voltage (AC side).
- (On)
Memory fault:
- No code
The inverter has detected a communication problem
- Memory fault
with the memory board on which the inverter saves
-
the daily value of energy produced.
Waiting Sun:
- No code The inverter goes into the "Waiting Sun" stage when,
- Waiting Sun following a W001 and/or W002 warning, the voltage
- from the photovoltaic generator is less than the
activation voltage (Vstart).
- W001 switching on the inverter):
- Sun Low
- (On)
voltage.
- W002 switching off):
- Input UV
- (On)
minimum input voltage.
Grid overvoltage:
- W004
This error signal occurs when during the inverter's
- Grid OV
normal operation the grid voltage exceeds the
- (On)
maximum limit set by the operator.
Grid undervoltage:
- W005
This error signal occurs when during the inverter's
- Grid UV
normal operation the grid voltage exceeds the
- (On)
minimum limit set by the operator.
The equipment can notify errors/warnings and can be checked via web
server user interface.
Solution
circuited at the negative pole) compared to ground. The
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.
- Should it be absent, check any protection work on the line
and the presence of grid voltage on the supply point.
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.
- If it does not exceed Vstart, check for the presence of
- If it exceeds Vstart, contact customer assistance
input voltage on
- If it does not exceed Vstart, check for the presence of
PV generator or an "on
input
- If it exceeds Vstart, contact customer assistance
input voltage on
- If it does not exceed Vstart, check for the presence of
photovoltaic generator
- If it exceeds Vstart, contact customer assistance
If the voltage tends to rise (when the inverter is connected),
there is a problem of high line or grid impedance.
- 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
- 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
- 138 -
8 - Maintenance
insulation resistance using a megohmmeter
grid voltage on the inverter's AC terminal block.
input voltage on the inverter.
input voltage on the inverter.
input voltage on the inverter.
grid voltage on the inverter.
grid voltage also on the supply.
grid voltage on the inverter.
grid voltage also on the supply.