5 EtherCAT Communications
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AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
1 Check that the devices start up in the normal status.
• Connect the EtherCAT communications cables correctly, and turn ON the power supply to the
EtherCAT master and to the slaves.
• Check that there is no problem with the EtherCAT master and the slaves.
• Check that the L/A IN indicators and the L/A OUT indicators of all slaves blink.
• Turn OFF the power supply to the EtherCAT master and to the slaves.
2 With a cable disconnected from a connector, check that the communications continue in the ring
disconnection status.
• Disconnect the cable from the ECAT IN connector on Servo Drive B, and protect the discon-
nected cable connector.
• Turn ON the power supply to the EtherCAT master and to the slaves.
• Check that there is no problem with the EtherCAT master and the slaves.
3 Check the location where the ring is broken.
• Check that the L/A OUT indicator of Servo Drive A and the L/A IN indicator of Servo Drive B
are OFF.
• Check that the other the L/A IN indicators and the L/A OUT indicators blink.
• Stop operation and turn OFF the power supply to the EtherCAT master and to the slaves.
• Connect the disconnected cable to the ECAT IN connector on Servo Drive B.
4 With a cable disconnected from another connector, check that the communications continue in
the ring disconnection status.
• Disconnect the cable from the ECAT OUT connector on Servo Drive B, and protect the dis-
connected cable connector.
• Turn ON the power supply to the EtherCAT master and to the slaves.
• Check that there is no problem with the EtherCAT master and the slaves.
5 Check the location where the ring is broken.
• Check that the L/A OUT indicator of Servo Drive B and the L/A IN indicator of Servo Drive C
are OFF.
• Check that the other the L/A IN indicators and the L/A OUT indicators blink.
• Stop operation and turn OFF the power supply to the EtherCAT master and to the slaves.
• Connect the disconnected cable to the ECAT OUT connector on Servo Drive B.
Now you are done with checking operation.
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