Sungrow SG33CX User Manual

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.

Sungrow SG33CX Specifications

General

Model	SG33CX
Manufacturer	Sungrow
Rated Power	33 kW
Max DC Voltage	1100 V
Max Efficiency	98.7%
Start Voltage	200 V
Total Harmonic Distortion	< 3%
Power Factor at Rated Power	1
DC Connection Type	MC4
Allowable Relative Humidity Range	0 - 100%
Operating Altitude	4000 m
MPPT Voltage Range	200 V - 1000 V
AC Voltage Range	310 V - 480 V
Rated Grid Frequency	50 Hz / 60 Hz
Adjustable Power Factor Range	0.8 leading to 0.8 lagging
Operating Ambient Temperature Range	-25 °C ... +60 °C
Communication	RS485