Sunways STT Series - Page 18

 


4 Installation





4 Installation



4.6.2 RS485 Communication
Figure 4-23









  


Figure 4-24

Port Function NO. Defi nition
Port 2
Connect external Meter (with 3CTs) to activate the Export Lim-
itation & control function on Sunways STT series inverter.
1 RS485 A2
2 RS485 B2
3 PE
4 RS485 A2
5 RS485 B2
6 PE
Port 3 Connect inverter display board. / /
Port 4
Only DRED version with this port.
DRED means demand response enable device. The AS/NZS
4777.2:2015 requires inverters to support demand response
mode (DRM). This function is for inverters that comply with AS/
NZS4777.2:2015 standard.
Sunways inverter is fully compliant with all DRM. The 6pin con-
nector is used for DRM connection.
Support DRM command: DRMO, DRM5, DRM6, DRM7, DRMB.
/ /