Sungrow SG50CX User Manual

102
Fault
Code
Fault
Name
Possible
Cause
Corrective Method
32
Overtem-
perature
The oper-
ating tem-
perature is
too high
1. Take measures to reduce the temperature,
such as improving heat dissipation conditions.
2. Check whether the alarm still exists in the early
morning or evening.
3. If the alarm still exists with correct settings,
please contact Sungrow Customer Service.
128
Output
current
backfeed
The output
current of
the opti-
mizer
backfeeds
1. If strings are connected in parallel, check
whether the number of modules varies consider-
ably between the two strings, or the module is se-
verely shaded.
2. If the alarm persists, please contact Sungrow
Customer Service.
512
Hardware
fault
A hardware
fault occurs
to the
optimizer
Please contact Sungrow Customer Service.
1024
Update
failed
The opti-
mizer soft-
ware fails
to upgrade
1. Check the light condition, and update the opti-
mizer again if the light is normal.
2. If the fault persists, please contact Sungrow
Customer Service.
• If there is a string current backfeed fault, first check whether the optimizer is
offline.
• Contact the dealer if the measures listed in the “Troubleshooting Method” col-
umn have been taken but the problem persists. Contact SUNGROW if the
dealer fails to solve the problem.
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