Sungrow SG33CX, Руководство пользователя

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User Manual 9 Troubleshooting and Maintenance
69
Fault
code
Description Check method
004
Grid undervoltage,
The grid voltage is
lower than the set
protection value
Generally, the inverter will be reconnected to
the grid after the grid returns to normal. If the
fault occurs repeatedly:
1. Measure the actual grid voltage, and
contact the local electric power company for
solutions if the grid voltage is lower than the
set value.
2. Check whether the protection parameters
are appropriately set via the APP or the LCD.
3. Check whether the AC cable is firmly in
place.
4. If the fault is not caused by the foregoing
reasons and still exists, contact Sungrow
Service.
005
Grid low voltage,
The grid voltage is
lower than the set
protection value
Generally, the inverter will be reconnected to
the grid after the grid returns to normal. If the
fault occurs repeatedly:
1. Measure the actual grid voltage, and
contact the local electric power company for
solutions if the grid voltage is lower than the
set value.
2. Check whether the protection parameters
are appropriately set via the APP or the LCD.
3. Check whether the AC cable is firmly in
place.
4. If the fault is not caused by the foregoing
reasons and still exists, contact Sungrow
Service.
007
AC instantaneous
overcurrent,
AC
output current
exceeds the upper
limit of the inverter.
Generally, the inverter will be reconnected to
the grid after the grid returns to normal. If the
fault occurs repeatedly, contact Sungrow
Service.
008
Grid
overfrequency,
Grid
frequency
exceeds the upper
limit of the inverter.
Generally, the inverter will be reconnected to
the grid after the grid returns to normal. If the
fault occurs repeatedly:
1. Measure the actual grid frequency, and
contact the local electric power company for
solutions if the grid frequency is beyond the
set range.
2. Check whether the protection parameters
are appropriately set via the APP or the LCD.
3. If the fault is not caused by the foregoing
reasons and still exists, contact Sungrow
Service.
009
Grid
underfrequency,
Grid frequency is
lower
than the
lower limit of the
inverter.