Sungrow SG50CX User Manual

55
figure 5-5 Multi-inverter Connection
When more than 15 inverters are connected to the same daisy chain, in order to ensure the
communication quality, the Logger at the first end of the daisy chain needs to be equipped
with a terminal resistor of 120Ω, the inverter at the last end needs to be equipped with a
RS485-dip switch (SW1), and the shielding layer of the communication cable should be sin-
gle-point grounded.
figure 5-6 Configuration of Dip Switch (N≥15)
The length of the RS485 cable and twisted pair cable should be no longer than
1,200m.
If multiple inverters are connected to the data logger, the number of permissible
daisy chains and the number of devices allowed to be connected should meet the
requirements (refer to the user manual for the data logger).
User Manual 5 Electrical Connection

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