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8.1. ERROR MESSAGES.
The three-phase inverter of the
designed in compliance with the applicable grid operation
standards and complies with the corresponding safety and EMC
requirements. The inverter has gone through a series of rigorous
tests to ensure its sustainable and reliable operation before
shipment.
When a fault occurs, the corresponding error message will be
displayed on the OLED screen, and the inverter may, in this case,
stop injecting power into the grid. The error messages and their
corresponding troubleshooting methods are listed below:
Error
Description
message
No image on the
No display
display
Network
Grid fault, AC
lost or not
switch or circuit
detected
disconnected.
Overvoltage or
undervoltage, mains
Grid voltage
voltage higher or
fault
lower than the set
protection value.
Excessively high or
low grid frequency
Grid frequency
with regards to the
fault
protection threshold
set forth.
Low system
insulation
resistance, usually
Regarding the
due to poor module/
ISO limits
cable insulation
to earth or in
rainy and humid
environments.
Excessive leakage
CFGI error
current.
The voltage of the
Photovoltaic
photovoltaic system
overvoltage
is excessively high.
The temperature
Excessive
inside the inverter
inverter
is excessively high
temperature
and out of the safe
range.
102
EQX2-HT
series has been
Solution
- Check that all cables are firmly connected
and that the DC switch is turned on.
- Check that the input voltage coincides
with the working voltage.
- Check that there has been a grid fault.
- Check that the AC thermal-magnetic
circuit breaker switches are up and that
the terminals are correctly connected.
- Check that the safety regulation setting
is correct.
- Check the grid voltage. If the grid voltage
exceeds the permitted range of inverter
protection parameters, contact the local
power company.
- Check whether the impedance of the AC
cable is too high. Replace the cable with
a thicker one if this is the case.
- Check whether the safety rule settings are
correct or not.
- Check the grid frequency. If it exceeds
the permitted range of inverter protection
parameters, contact the local power
company.
- Check if the photovoltaic panels, cables
and connectors are broken or there are
water leaks.
- Check if there is a reliable earthing
connection.
- Excessively high earth current.
- Check the photovoltaic cable to see if it
is short-circuited to earth.
- The input voltage is excessively high.
- Reduce the number of photovoltaic panels
to ensure that the open-circuit voltage of
each string is less than the maximum input
voltage allowed.
- Check if the inverter is exposed to direct
sunlight.
- Reduce the ambient temperature.
Error
Description
message
Excessively high
DC injection.
The inverter
DCI error
detects a high DC
component on the
AC output.
Bus voltage
Excessively high bus
- Restart the inverter; wait a few seconds
error
voltage.
until it is restored back to normal.
Internal
ICS error
- If the fault occurs several times, please
communication
contact SALICRU.
SPI error
error, possibly due
to a strong external
E2 error
magnetic field, etc.
Error in the
Anomaly in the GFCI
GFCI device
device.
AC transducer
Anomaly in the AC
error
transducer.
- Use a multimeter to check if the voltage is
Relay self-test
high (it should be less than 10 V) between
failure. Neutral
N and PE on the AC side. If the voltage
Relay test
and earth are not
is higher than 10 V, the neutral and earth
failed
connected properly
are not well connected on the AC side.
on the AC side or
Alternatively, restart the inverter.
simply fail.
- If neutral and earth are connected
properly, contact SALICRU.
Error in the internal
- Restart the inverter; wait a few seconds
storage, possibly
Flash memory
until it is restored back to normal.
due to a strong
error
- If the fault occurs several times, please
external magnetic
contact SALICRU.
field, etc.
- Stop the inverter and disconnect the
External fan
Anomaly in the
AC+DC cables.
failure
external fan.
- Check if the fan is being blocked by
unwanted objects. If not, replace it.
- Restart the inverter; wait a few seconds
Internal fan
Anomaly in the
until it is restored back to normal.
failure
internal fan.
- If the fault occurs several times, please
contact SALICRU.
Tab. 19. Error messages.
The red LED will be lit on the display for all error messages
(see Tab. 5).
8.2. TROUBLESHOOTING.
Problem
The inverter is powered
To start the inverter, in addition to receiving
correctly but it does not
voltage on the panels, it needs to be connected to
start and the message
the grid to synchronise with it and ensure that it
"Waiting" appears on the
does not work in the "island" mode.
display while the green
Check that there is voltage on the terminals of the
LED flashes.
circuit breakers that power the inverter protection
panel.
If the circuit breakers on the AC protection panel
are activated correctly, there might be another cir-
cuit breaker upstream that needs to be activated.
Zero injection is activated
The CT may be wired incorrectly. The CT arrow
and the inverter does not
must be in the direction of the installation towards
generate power, even
the grid (connection side).
though the installation
Read section "6.5.3. Installing the CT.".
has load.
Solution
Solution
SALICRU
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