Sungrow SG125CX-P2 User Manual

5 Electrical Connection User Manual
No. Silk Screen Description
5 DRM
For external Demand Response Enabling Device
("AU"/ "NZ")
6 ALARM
Used to connect LED indicators or other devices to
indicate whether the inverter is in the faulty state
*Contact SUNGROW to ensure that the Smart Energy Meter model is available locally.
The inverter can provide export control but will require the use of a external smart meter. The
export control functionality has not been tested to AS/NZS 4777.2:2020.
5.13 RS485 Connection
5.13.1 Interface Description
The RS485 communication wiring board of the inverter is shown below.
The following is the description of terminals.
table 5-4 RS485_1 interface (terminal block) description
No. Description
A1 RS485A
OUT，RS485A
differential signal+
A1 RS485A
IN，RS485A
differential signal+
B1 RS485B
OUT，RS485B
differential signal-
B1 RS485B
IN，RS485B
differential signal-
table 5-5 RS485_1 interface
(RJ45）description
No. Description
PIN 1 ~ 2 N/A
PIN 3 RS485B differential signal-
70

Sungrow SG125CX-P2 Specifications

General

Max. DC Voltage	1100 V
Rated AC Power	125 kW
Max. DC Power	150 kW
Start-up Voltage	200 V
MPPT Voltage Range	200 V - 1000 V
Max. Short-circuit Current per MPPT	40 A
Max. AC Power	137.5 kW
Max. AC Current	198 A
Rated AC Voltage	400 V
Rated Grid Frequency	50/60 Hz
Total Harmonic Distortion	<3%
Power Factor Adjustment Range	0.8 leading to 0.8 lagging
DC Connection Type	MC4
Protection Class	IP66
Maximum DC Input Power	150 kW
DC Inputs per MPPT	2
Cooling Method	Smart forced air cooling
Operating Temperature Range	-25°C to +60°C
Humidity Range	0 - 100%
Communication	RS485, Ethernet