Connecting Ethernet Cable - Mitsubishi Electric MELSERVO-J4 Instruction Manual

2. EtherCAT NETWORK MODULE (ABCC-M40-ECT)

2.4 Connecting Ethernet cable

To the RJ45 EtherCAT communication port (IN port), connect the Ethernet cable connected to the controller
or the previous axis servo amplifier. To the RJ45 EtherCAT communication port (OUT port), connect the
Ethernet cable connected to the next axis servo amplifier. When the RJ45 EtherCAT communication port
(OUT port) is not used, leave this port open.
When the node address is not used, an incorrect connection destination sets node addresses that do not
correspond to the actual connection order and may cause a malfunction, such as an unintended axis
operation.
Ethernet cable
Controller
POINT
Use a twisted pair cable (double shielded) with Ethernet Category 5e
(100BASE-TX) or higher as the Ethernet cable. The maximum cable length
between nodes is 100 m.
When connecting an Ethernet cable to an EtherCAT network port, ensure that
the connection destination (OUT port (upper side) or IN port (lower side)) is
correct.
The first axis
servo amplifier
OUT port
Ethernet cable
IN port
The second axis
servo amplifier
OUT port
IN port
2 - 4
The final axis
servo amplifierr
Ethernet cable
OUT port
IN port