Wecon VD2F-010SA1P - 4.5.2 Communication connection with PLC and other

Wecon VD2 SA Series Servo Drives Manual (Lite V1.1)
WECON technology Co., Ltd
49
CN3&CN4
Pin
Name
Function description
1
2
3
4
5
6
7
8
1
RX-
Computer sends negative terminal (drive receives negative)
2
RX+
Computer sends positive terminal (drive receives positive)
3
TX-
Computer receives negative terminal (drive sends negative)
4
GND
Ground terminal
5
NC
Not used
6
TX+
Computer receives positive terminal (drive sends positive)
7
NC
Not used
8
NC
Not used
Table 4-20 VD2F pin definitions for CN3 and CN4 interfaces
4.5.2 Communication connection with PLC and other device (RS485)
VD2A and VD2B servo drives communicate with PLC and other devices for Modbus via CN5 or CN6
interface (located on the top of servo drive) by RS485 communication.
CN5&CN6
Pin
Name
Function description
1
2
3
4
5
6
7
8
1
485+
Computer sends negative terminal (drive receives negative)
2
485-
Computer sends positive terminal (drive receives positive)
3
NC
Not used
4
GND
Ground terminal
5
GND
Ground terminal
6
NC
Not used
7
Reserved
Reserved
8
GND
Ground terminal
Table 4-21 The pin definition of CN5/CN6 interface
VD2F servo drives communicate with PLC and other devices for Modbus via CN3 or CN4 interface
(located on the top of servo drive) by RS485 communication.
CN3&CN4
Pin
Name
Function description
1
2
3
4
5
6
7
8
1
485+
Computer sends negative terminal (drive receives negative)
2
485-
Computer sends positive terminal (drive receives positive)
3
-
Computer receives negative terminal
4
GND
Ground terminal
5
-
Not used
6
-
Computer receives positive terminal
7
-
Not used
8
-
Not used