Salicru EQUINOX2 3001-S User Manual page 74

8. TROUBLESHOOTING GUIDE.
8.1. ERROR MESSAGES.
The single-phase inverter of the EQX2 series has been 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.
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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
error voltage.
Internal
ICS error
communication
SPI error error, possibly due
to a strong external
E2 error
magnetic field, etc.
Error in the Anomaly in
GFCI device the GFCI device.
AC transducer Anomaly in the AC
error transducer.
Relay self-test
failure. Neutral
Relay test and earth are not
failed connected properly
on the AC side or
simply fail.
Error in the internal
storage, possibly
Flash memory
due to a strong
error
external magnetic
field, etc.
External fan Anomaly in the
failure external fan.
Internal fan Anomaly in the
failure internal fan.
Tab. 13. Error messages.
The red LED will be lit on the display for all error messages
(see Tab. 5 ).
Solution
- Restart the inverter; wait a few seconds
until it is restored back to normal.
- If the fault occurs several times, please
contact SALICRU.
- Use a multimeter to check if the voltage
is high (it should be less than 10 V)
between N and PE on the AC side. If the
voltage is higher than 10 V, the neutral and
earth are not well connected on the AC
side. Alternatively, restart the inverter.
- If neutral and earth are connected
properly, contact SALICRU.
- Restart the inverter; wait a few seconds
until it is restored back to normal.
- If the fault occurs several times, please
contact SALICRU.
- Stop the inverter and disconnect
the AC+DC cables.
- Check if the fan is being blocked by
unwanted objects. If not, replace it.
- Restart the inverter; wait a few seconds
until it is restored back to normal.
- If the fault occurs several times, please
contact SALICRU.
SALICRU