Canopen Connection - ABB NCAN-02 Installation And Startup Manual

CANopen Connection

CAN Bus Termination
NCAN-02 Installation and Start-up Guide
The bus cable and the external power supply are connected to terminal
blocks X1 and X2 on the NCAN-02.
The terminal blocks are described below.
X1
1 0 V DC GND
2 UC +24 VDC
3 DC GND
EXT
4
CAN GND
X2
5 SHLD Network cable shield.
6 CAN_L CAN_L bus line.
7 GND CAN bus ground (digital ground).
8 CAN_H CAN_H bus line.
The CAN bus line must be terminated with 120 ohm resistors
connected between the CAN_L and CAN_H wires at each end as
shown below.
Node 1
120 ohm
1%, 1/4 W
Chapter 4 – Electrical Installation
Description
Power supply ground (0 V). If the power to the module is
supplied through the CAN network, this terminal should be
left unconnected.
+24 V ±10% (80 mA) DC supply to the module.
The power can be taken from the drive's internal power
supply (see drive manuals), a dedicated external power
supply, or through the CAN network.
The on-board power supply is disabled if the voltage drops
below 11 V.
These terminals should be connected together if the
power to the module is supplied through the CAN network.
This makes the NCAN-02 a non-isolated node.
Description
• • •
CAN_H
CAN_L
Node n
120 ohm
1%, 1/4 W
4-5