Laying Ethercat Communications Cables - Omron NJ Series Startup Manual

2 Before You Begin
2-2-3

Laying EtherCAT Communications Cables

Connect the EtherCAT slave communications cables between the built-in EtherCAT port on the CPU
Unit and the EtherCAT slaves as shown in the following figure.
Connect the communications cable from the built-in EtherCAT port to the input port on the first slave,
and then connect the communications cable to the next slave to the output port on the first slave.
Do not connect anything to the output port of the slave at the end of the network.
Built-in EtherNet/IP port
Built-in EtherCAT port
RUN ERR
FS
First Servo Drive
Setting the Node Addresses of the Servo Drives
Set the node addresses of the Servo Drives as shown below.
Only the first Servo Drive is used in Section 3 Setting Up a Single-axis Servo System.
The second Servo Drive is added in Section 4 Two-axis Linear Interpolation Program.
ADR
2-4
NX-series NX1P2 CPU Unit
L/A L/A L/A L/A
IN OUT RUN ERR IN OUT
FS
Second Servo Drive
Rotary switches for setting
the node address
10s digit
Set to 0. Set to 1.
10s digit
Set to 0. Set to 2.
Connector IN port for
EtherCAT communications
Connector OUT port for
EtherCAT communications
First Servo Drive
1s digit
Second Servo Drive
1s digit
NJ/NX-series Startup Guide for Motion Control (W514)