Moons' STF-C Series - Connecting Communication for -R Models

9
Rev. 1.0
11/08/2017
STF-R/C Hardware Manual
400-820-9661
2.2 Connecting communication (-R model)
RS-485 Port
1 8 1 8
PIN Signal
Wire Color
1 RX+ ORN/WHT
2 RX- ORN
3 TX+ GRN/WHT
4.5 NC BLU, BLU/WHT
6 TX- GRN
7.8 GND BRN/WHT, BRN
Connection STF drive with PC using RS-485 communication
Before using STF congurator for –R drive conguration, please connect COM1 or COM2 on the
driver to host PC by network cable provided. Both 4 wire connection or 2 wire connection can be
used.
RS-485 four-wire connection: RS-485 two-wire connection:
Drive Connection
RX+ Connect to host’s TX+
RX- Connect to host’s TX-
TX+ Connect to host’s RX+
TX- Connect to host’s RX-
GND Connect to host’s GND
Drive Connection
RX+ Connect to host’s +
RX- Connect to host’s -
TX+ Connect to host’s +
TX- Connect to host’s -
GND Connect to host’s GND
NOTE: The RS-485 port on the drive is isolated from internal circuitry of the drive. So the
GND of each drive's RS-485 port must be connected together. The rst drive's GND of the
RS-485 port must be connected to the GND of RS-485 port on the host PC or controller.