7.4 RS485 cable connection
1.Installation rubber pipe into the knock-out hole and pull the pipe nut slightly, feed
the RS485 cables through the pipe into the wire box.
2.RS485 communication wiring request and machining.
Code
A
B
Name
Conductor cross-section
Stripping insulation
Detail
0.2~0.5mm2
5~8mm
4.Connect the cable to the RS485 terminal (‘1’ to ‘T/R-’, ‘3’ to ‘T/R+’, and ‘2’ to the
shielding net)
As to the connection between inverters, please refer to the
following figure.
Information
3.Take out the RS485 connection terminal from accessory packing bag.
As to the connection between inverter and data logger, please
refer to the following figure.
Information
RS485 BUS balance jumper:
In RS485 communication circuit, when the T/R+ and T/R- lines
reach a certain length, the line itself has impedance, in order to
balance the impedance of the RS485 bus line, you’d better get
the jumper to the state “ON” in RS485 BUS balance jumper of the
remote inverter that the last one connects to the RS485 bus line
while others keep “OFF” state.
Information
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