REFU Elektronik GmbH REFUsol 40K / 46K-MV 31
9. Tighten the four M5 nuts of the connection housing with tightening torque 2,8 Nm.
10. Tighten cap nut of cable gland with 30 Nm.
11. Check whether the connection area is properly installed and waterproofed.
4.14
Interface Port RS485
The RS485 interface supports the USS (Universal Serial Interface Protocol) and Modbus/Sunspec protocols,
which can be used for transmission of data, for example, to a data logger of a remote monitoring system.
Portal
Data Logger /
Park Control
Ethernet
RS485+ RS485- Ref. 4 43 32 2 4 43 32 4
Bus
termination
13 22 432
Inverter 1
Inverter 2 Inverter n
Fig. 12: Standard interface
When using this interface, please note that each device using the bus requires a unique address.
The bus termination is made by means of wire jumpers on RS485 OUT to the last bus user (inverter “n”).
Pin
Signal
Pin 1
(only used for termination)
Pin 2
RS485 +
Pin 3
RS485 -
Pin 4
Reference
To Next Page
Loading...
