6 Electrical Connection
User Manual
44
RJ45-RS485 Communication Connection
Step 1
Lead Network cable through communication cable gland to the configuration circuit
board.
Step 2
Use the Ethernet crimper to crimp the cables and connect cables to RJ45 plug
according to TIA/EIA 568B. In Ethernet cable, Pin 3 white-green cable defines RS485- B
while Pin 6 green cable defines RS485+ A.
Step 3
Connect the RJ45 plug into the RS485 in/RS485 out terminal on the configuration
circuit board.
Step 4
According to the position of the inverter (refer to the prior section), repeat step1…3
to connect the other RS485 cable to the RS485 out/RS485 in terminal.
Step 5
Pull cables outwards to confirm whether they are fastened firmly.
Step 6
Tighten the tread-lock sealing lock. Block off the vacant terminals to protect the
inverter’s internal from dust and moisture.
Step 7
According to the position of the inverter (refer to the prior section) switch ON or OFF
the terminating resistor.
Step 8
Seal the gaps between the cable and the gland inside the lower part of the cabinet by
fireproofing mud. If there is no other connection procedure, reassemble and fix the
front cover of the connection cabinet.
Step 9
For the wires which connect to the logging devices, use the Ethernet wire stripper to
strip the insulation layer and connect the RS485 A and B cables to data logging device
or RS485-232 converter. Pin 3 white-green cable defines RS485- B while Pin 6 green
cable defines RS485+ A.
Step 10
Refer to other manuals and documents if there are other devices.
Step 11
Confirm the communication connection and set the communication parameters.
If more than one inverter is connected to PC or Logger, please set the
communication parameters from the LCD display. For more information,
please refer to 10.12 Communication Parameter Setting.
