Alarm Messages Of The Inverter - ABB PVS-50-TL 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
- Warning
- 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 Lack of linkage of the new system part:
- NEW SYSTEM PART The components inside the inverter (e.g. display, fuse
REFUSED! board, communication and control board, etc.) are not
-
Flashing yellow inter-linked. This occurs following the replacement of
LED one of the components inside the inverter.
- No code
SET COUNTRY or NO NATION:
- SET COUNTRY or
Indicates that in the installation phase the grid
NO NATION
standard was not set on the inverter.
- No LED
- No code
Missing Grid:
- Missing Grid
The inverter does not detect grid voltage (AC side).
- 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
switching off):
- W002
Incorrect configuration of the photovoltaic generator
- Input UV
or an "on the limit" configuration for the inverter's
- Yellow LED
minimum
In order to understand and resolve warning (Wxxx) or error (Exxx)
signals that appear in the Alarm section of the internal webserver or on
the inverter's display, follow the table given in the following paragraph.
The equipment can notify errors/warnings in the Alarm section of the
internal webserver or on the display (where present) only if the input
voltage is greater than the Vdcmin voltage (POWER Led flashing or lit;
see chapter on operation)
The messages and related codes are shown in the Alarm section of the
internal webserver or on the display.
input voltage.
- 144 -
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.
• Link the components inside the inverter by accessing the
"Settings > Service > Accept boards" (refer to the procedure
given in this manual).
- If the signal persists also following the linking of the
components, contact customer assistance.
• Set the grid standard of the country of installation following
the instructions given in this manual for the inverter.
- If the signal persists also after the grid standard has been
set, 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
8 - Maintenance