INSTALLATION GUIDE
Brand:
Refusol
Type:
Solar On Grid String Inverter
Models:
REFUsol 08K , REFUsol 10K , REFUsol 13K , REFUsol 17K ,REFUsol 20K, REFUsol 23K-MV,
REFUsol 40K, REFUsol 46K-MV
MANDATORY CHECKS
Firmware Version -
300-01-06-10-S or above
CONNECTION DIAGRAM
Figure R1 – Refusol Sring Inverter Connections
Figure R2- Connector Pins
Table RT1 – Refusol RS485 chip connections with TrackSo IoT
Gateway
Refusol Pin
No.
Refusol Assignment
TrackSo Pin
No.
TrackSo Assignment
1
(only used for
termination)
1
Power+
(Via Adapter)
2
RS485 +
2
D +
3
RS485 -
3
D -
4
Reference
4
1.
Please open RS485 terminal (communication port 1) as shown in
Figure R1
.
2.
Please make the connections from the Terminal Block of RS485 chipset to TrackSo IoT Gateway as
mentioned in the Table – RT1 and using the connector supplied with inverer as shown in R2
3.
Connector Details - Phoenix Contact type M12MS SACC-4SC SH plug
4.
Terminate the bus as required. The bus termination is made by means of wire jumpers on RS485 OUT to the
last bus inverter. To make the termination take a short cable, remove the cable insulation, and connect the
pin 1 to pin 2 as well as pin 3 to pin 4.
