Wiring the XEM CPU to SureServo2 Drive

  • Pins 4 and 5 on the CN3 RJ45 connector on the SureServo2 drive are the + and – connections of the RS-485 connection.

  • Strip back one side of an Ethernet/RJ45 cable to connect the servo CN3 port to a PLC’s RS-485 terminals or use a ZL-RTB-RJ45 RJ45 breakout board.

  • For multiple drives, use a standard Ethernet cable to connect to the SV2-CN3-CON-2 SureServo2 splitter.

  • Connect multiple drives the same way with normal Ethernet patch cables.

  • On the last drive in the system, use SV2-CN3-TR2 to incorporate a 120Ω terminating resistor.

  • Additionally, it is important to make sure grounding/common is connected between drives and controller to avoid a floating differential voltage that may affect the communication.

CN3 Pin-out Diagram

Notes:

  1. The cable length can be up to 100 meters when the servo drive is installed in a quiet environment. If the transmission speed is over 38400 bps however, a maximum 15 meter cable is recommended to ensure data transmission accuracy.

  2. The numbers on the above figure represent the pin number of each connector.

  3. When using RS-485 communication, you may connect up to 32 servo drives. You can install a repeater to connect more servo drives (the maximum is 127).

  4. Please refer to the SureServo2 user manual on using SV2-CN3-CON-2 and SV2-CN3-TR2 to create an RS-485 network with minimal end-user wiring.

 

 

 

 

 

 

 

LP213-1