Troubleshooting Guide; Error Messages - Salicru EQUINOX EQX2 4002-T User Manual

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,
Grid voltage mains voltage
fault higher or lower
than the set
protection value.
Excessively high or
low grid frequency
Grid frequency
with regards to
fault
the protection
threshold set forth.
Low system
insulation
resistance,
usually due to
Regarding the
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.
USER MANUAL
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
- Restart the inverter; wait a few seconds
error bus voltage.
until it is restored back to normal.
Internal
ICS error
- If the fault occurs several times,
communication
please contact SALICRU.
SPI error
error, possibly due
to a strong external
E2 error
magnetic field, etc.
Error in the Anomaly in the
GFCI device GFCI 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. 12. Error messages.
The red LED will be lit on the display for all error messages
(see Fig. 55).
Solution
EQX2 SOLAR INVERTERS CONNECTED TO THE GRID
83