Table of Contents
Advertisement
- Code on display
- Error message
Name of Alarm and Cause
- Signal
- 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.
Lack of linkage of the new component:
- No code
The components inside the inverter (e.g. display, fuse
- NEW COMPONENT
board, communication and control board, etc.) are not
REFUSED!
inter-linked. This occurs following the replacement of one
-
Yellow LED lamp.
of the components inside the inverter.
- No code
SET COUNTRY or NO NATION:
- SET COUNTRY or NO
Indicates that in the installation phase the grid standard
NATION
was not set on the inverter.
-
No LED
- No code
Vac absent:
- Vac absent
The inverter displays the "Vac absent" message when it
-
Yellow LED
does not record output voltage (AC side).
Memory broken:
- No code
The inverter displays the "Memory broken" message
- Mem. broken
when it records a communication problem with the me-
-
Yellow LED
mory board on which the inverter saves the daily value
of energy produced.
Awaiting sun:
- No code
The inverter displays the "awaiting sun" message when,
- Awaiting sun
following a W001 and/or W002 notice, the voltage from
-
Green LED lamp.
the photovoltaic generator is less than the activation vol-
tage (Vstart).
Insufficient irradiation (Low input voltage on
- W001
switching on the inverter):
- Sun Low
Incorrect configuration of the PV generator or an "on the
-
Yellow LED
limit" configuration for the inverter's minimum input vol-
tage.
Insufficient irradiation (Low input voltage on
- W002
switching off):
- Input UV
Incorrect configuration of the photovoltaic generator or
-
Yellow LED
an "on the limit" configuration for the inverter's minimum
input voltage.
Parameters of grid voltage outside range:
This error signal occurs when during the inverter's nor-
mal operation the grid parameters exceed the limits set
- W003
by the operator:
- Grid Fail
- Grid voltage absent (after the signal the inverter goes
-
Yellow LED
to "Vac Absent")
- Unstable grid voltage (down or up)
Unstable grid frequency
- W009
Characterisation board for the wind generator not compi-
- Empty Table
led (only WIND models)
-
Yellow LED
Solution
• Measure the insulation resistance using a megohmmeter posi-
tioned in the photovoltaic field (positive terminal short-circuited
at the negative pole) compared to ground. The measurement is
strongly influenced by the environmental conditions, so must be
taken 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 gene-
rator 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 "Set-
tings > Service > Accept boards" (refer to the procedure given in
this manual).
- If the signal persists also following the linking of the compo-
nents, 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 following setting the grid standard,
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 suffi-
cient irradiation and the correct composition of the system.
- If it exceeds Vstart, contact customer assistance
• Check the grid voltage on the inverter.
- Should it be absent, check for absence of grid voltage on the
supply point.
- If, on the other hand, the voltage tends to rise (when the inverter
is connected) there is high line or grid impedance.
• Check the 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 me-
asured 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
(only WIND models)
8 - Maintenance
88
Advertisement
Table of Contents
