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Can communication – ElmoMC SimplIQ Digital Servo Drives-Whistle DC Installation Guide User Manual

Page 47

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DC Whistle Installation Guide

Installation

MAN-DCWHIIG (Ver. 1.101)

www.elmomc.com

47

3.12.2. CAN Communication

Notes for connecting the CAN communication cable:

1.

Use 26 or 28 AWG twisted pair shielded cables. For best results, the shield should have
aluminum foil and be covered by copper braid with a drain wire

2.

Connect the shield to the ground of the host (PC). Usually, this connection is soldered
internally inside the connector at the PC end. You can use the drain wire to facilitate
connection.

3.

The CAN communication port is non-isolated.

4.

The male RJ plug must have a shield cover.

5.

Ensure that the shield of the cable is connected to the shield of the RJ plug.
The drain wire can be used to facilitate the connection.

6.

For "daisy-chain" connections, connect a termination 120-Ω resistor at each of the two
ends of the network cable.

Pin

Signal

Function

1

CAN_H

CAN_H busline (dominant high)

2

CAN_L

CAN_L busline (dominant low)

3

CAN_GND

CAN ground

4, 5

N/A

6

CAN_SHLD

Shield, connected to the RJ plug cover

7

CAN_GND

CAN Ground

8

N/A

body

Drain Wire

shield

Pin Positions

Table 14: CAN Cable - Pin Assignments