ABB PVS-100 User Manual

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000846BG
8 - Maintenance
Alarm Messages of the Inverter
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 ashing or lit; see chapter on operation).
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
- LED status
Name of Alarm and Cause Solution
- No code
- Ground F
- Red LED
Ground fault of photovoltaic generator:
The alarm is generated when a leakage current to
ground is detected in the DC section of the system.
• 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 inuenced 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.
- No code
- Missing Grid
- Flashing green
LED
- Yellow LED
Missing Grid:
The inverter does not detect grid voltage (AC side).
• 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.
- No code
- Memory fault
- Flashing yellow
LED
Memory fault:
The inverter has detected a communication problem
with the memory board on which the inverter saves
the daily value of energy produced.
• 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.
- No code
- Waiting Sun
- Flashing green
LED
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).
• Check the input voltage on the inverter.
- If it does not exceed Vstart, check for the presence of
sufcient irradiation and the correct composition of the system.
- If it exceeds Vstart, contact customer assistance
- W001
- Sun Low
- Yellow LED
Insufcient irradiation (Low input voltage on
switching on the inverter):
Incorrect conguration of the PV generator or an “on
the limit” conguration for the inverter's minimum input
voltage.
• Check the input voltage on the inverter.
- If it does not exceed Vstart, check for the presence of
sufcient irradiation and the correct composition of the system.
- If it exceeds Vstart, contact customer assistance
- W002
- Input UV
- Yellow LED
Insufcient irradiation (Low input voltage on
switching off):
Incorrect conguration of the photovoltaic generator
or an “on the limit” conguration for the inverter's
minimum input voltage.
• Check the input voltage on the inverter.
- If it does not exceed Vstart, check for the presence of
sufcient irradiation and the correct composition of the system.
- If it exceeds Vstart, contact customer assistance

ABB PVS-100 Specifications

General

Brand	ABB
Model	PVS-100
Category	Inverter
Language	English