Sungrow SG320HX, User Manual

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figure 5-2 Terminal Description (Two Wires per Phase with Multi-core Cable)
* The image shown here is for reference only. The actual product received may differ.
Item Terminal Mark Note
A PV terminals + / -
24 / 28 / 32, PV connector 1
B
AC wiring
terminal
—
Used for AC output cable connection.
C
Standby
grounding ter-
minal 2
—
Used for internal grounding.
D
Tracker
terminal
—
Used for internal Tracker ， Tracker power wir-
ing to power the Tracker.
E
Communica-
tion terminal
COM1
For RS485 communication wiring.
F
Communica-
tion terminal
COM2 3
Optional, digital input / output DI / DO and CAN
wiring, etc.
G
External
grounding
terminal
For reliable grounding
2, use at least one of them to ground the
inverter.
(1) The number of PV terminals varies, subject to actual product received.
(2) If the PE cable is an independent single-core cable, it should be inserted into the AC
junction box through the standby grounding terminal.
(3) Communication terminal COM2 is optional, subject to actual product received.
5.3 Electrical Connection Overview
Electrical connection in the PV system includes external grounding connection, AC connec-
tion, and PV string connection.
5 Electrical Connection User Manual