Sungrow SG50CX User Manual

96
Fault Code Fault Name Corrective Measures
548-563, 580-
595
PV Abnormal
Alarm
Check whether the voltage and current of the in-
verter is abnormal to determine the cause of the
alarm.
1. Check whether the corresponding module is
sheltered. If so, remove the shelter and ensure
module cleanness.
2. Check whether the battery board wiring is
loose, if so, make it reliably connected.
3. Check if the DC fuse is damaged. If so, replace
the fuse.
4. Contact Sungrow Customer Service if the pre-
ceding causes are ruled out and the alarm
persists.
*The code 548 to code 563 are corresponding to
string 1 to string 16 respectively.
*The code 580 to code 595 are corresponding to
string 17 to string 32 respectively.
37
Excessively High
Ambient
Temperature
Generally, the inverter will resume operation
when the internal or module temperature returns
to normal. If the fault persists:
1. Check whether the ambient temperature of the
inverter is too high;
2. Check whether the inverter is in a well-venti-
lated place;
3. Check whether the inverter is exposed to di-
rect sunlight. Shield it if so;
4. Check whether the fan is running properly. Re-
place the fan if not;
5. Contact Sungrow Power Customer Service if
the fault is due to other causes and the fault
persists.
43
Excessively Low
Ambient
Temperature
Stop and disconnect the inverter. Restart the in-
verter when the ambient temperature rises within
the operation temperature range.
9 Troubleshooting and Maintenance User Manual

Sungrow SG50CX Specifications

General

Max. DC Voltage	1100 V
MPPT Voltage Range	200 V - 1000 V
Max. Input Current per MPPT	26 A
Number of MPPTs	4
Rated AC Output Power	50 kW
Max. AC Output Current	76 A
Frequency	50 Hz / 60 Hz
Efficiency	98.6%
Start Voltage	200 V
Number of DC Inputs per MPPT	2
Max. AC Apparent Power	55 kVA
AC Voltage Range	310 V - 480 V
Power Factor at Rated Power	1
Adjustable Power Factor Range	0.8 leading - 0.8 lagging
THDi	< 3%
DC Switch	Yes
AC Surge Protection	Type II
DC Surge Protection	Type II
Protection Class	I
Cooling Method	Smart forced air cooling
Protection Degree	IP66
Protection Level	IP66
Operating Temperature Range	-25°C to +60°C
Humidity	0-100%
AC Output Voltage	3 / N / PE, 220 V / 380 V, 230 V / 400 V