34
35
The maximum distance between the inverter at the end of the daisy chain and the Data
logger should be within 1000m.
Any further difficulties in export limitation & control or generation limit solution, wiring
instructions and configuration, please contact Sunways after-sales at service@sunways-
tech.com.
① Remove the COM2 plate in the bottom of the inverter with a cross screwdriver.
② Put the cable through the connector and connect to the terminal in the following
order: screw cap, sealing ring, insulator, metal plate, nut and 3/6pin connector, as shown
in Figure 4-23:
Figure 4-22
Attention
It is recommended to use the RS485 communication cable with a cross sectional area of
0.75-1.5mm and an outer diameter of 5mm-10mm.
RS485 cable requirements: Shielded twisted-pair cable or shielded twisted Ethernet
cable.
4.6.3 Export limitation & control or generation limit solution
4.6.4 Wiring Steps:
STT 4~25KTL
series inverter
STT 4~25KTL
series inverter
STT 4~25KTL
series inverter
Data logger
Sunways server
Internet
Internet
LAN/WiFi
/GPRS
RS485
RS485
RS485
Router
...
2
Figure 4-23
Figure 4-24
③ Insert the cable to the port in the 3/6pin connector and fasten with a screwdriver.
④ Insert the 3/6pin connector into the 3/6pin connecter inside the inverter, and screw the
COM2 plate back with a cross screwdriver, as shown in Figure 4-24:
20-25mm
1
3
3
1
2
4
6
2
2
1
3
5
Port 1
Port 2
Port 3
6mm
6mm
20-25mm
Screw cap
Sealing ring
Insulator ring
Metal plate
3/6pin connector
Nut
COM2-1
COM2-1
4 Installation
4 Installation
