Alarm Messages Of The Inverter - ABB PVS-100 Product Manual

A
larm Messages of the Inverter
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
- LED status
- No code Ground fault of photovoltaic generator:
- Ground F The alarm is generated when a leakage current to
- Red LED ground is detected in the DC section of the system.
- No code
- Missing Grid
Missing Grid:
- Flashing green
The inverter does not detect grid voltage (AC side).
LED
- Yellow LED
- No code Memory fault:
- Memory fault The inverter has detected a communication problem
-
Flashing yellow with the memory board on which the inverter saves
LED 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
- Flashing green
from the photovoltaic generator is less than the
LED
activation voltage (Vstart).
Insufficient irradiation (Low input voltage on
- W001 switching on the inverter):
- Sun Low Incorrect configuration of the PV generator or an "on
-
Yellow LED the limit" configuration for the inverter's minimum input
voltage.
Insufficient irradiation (Low input voltage on
- W002 switching off):
- Input UV Incorrect configuration of the photovoltaic generator
-
Yellow LED or an "on the limit" configuration for the inverter's
minimum input voltage.
In order to understand and resolve warning (Wxxx) or error (Exxx) signals
that appear in the Event or Dashboard section of the Web User Interface
follow the table given in the following paragraph.
The equipment can notify errors/warnings in the Event or Dashboard
section of the Web User Interface only if the input voltage is greater than
the Vdcmin voltage (POWER Led flashing or lit; see chapter on operation).
Solution
• Measure the isolation resistance using a megohmmeter
positioned in the photovoltaic array (positive terminal short-
circuited at the negative pole) compared to ground. The
measurement is strongly influenced by the environmental
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.
• Check the 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.
• Remove the memory board and check the welding of all
the 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.
• Check the input voltage on the inverter.
- If it does not exceed Vstart, check for the presence of
sufficient irradiation and the correct composition of the system.
- If it exceeds Vstart, contact customer assistance
• Check the input voltage on the inverter.
- If it does not exceed Vstart, check for the presence of
sufficient irradiation and the correct composition of the system.
- If it exceeds Vstart, contact customer assistance
• Check the input voltage on the inverter.
- If it does not exceed Vstart, check for the presence of
sufficient irradiation and the correct composition of the system.
- If it exceeds Vstart, contact customer assistance
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8 - Maintenance