Omron R88D-1SN ECT Series User Manual

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13 Maintenance and Inspection
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
13-4 Method for Broken Ring Maintenance and Inspection
13
13-4 Method for Broken Ring Maintenance
and Inspection
This section takes the following example of a configuration in which the ring is broken between Servo
Drive A and B, and describes how to perform inspection and how to replace the Servo Drive.
1 Identify where the ring is broken.
• With a tool such as support software, find the node address of the Servo Drive breaking the
ring. For the NJ/NX-series Controller, check the _EC_RingBreakNodeAdr system-defined
variable that will provide you with the node address of Servo Drive A. Check that the L/A OUT
indicator of Servo Drive A and the L/A IN indicator of Servo Drive B are OFF.
2 Reconnect the EtherCAT communications cable between Servo Drive A and B.
• Stop operation and turn OFF the power supply to the EtherCAT master and to the slaves.
• After the charge lamps of Servo Drive A and B turn OFF, reconnect the EtherCAT communi-
cations cable, and then turn ON the control power supply to Servo Drive A and B.
• If the L/A OUT indicator of Servo Drive A and the L/A IN indicator of Servo Drive B are ON,
the ring disconnection status has been fixed.
• If the L/A IN and L/A OUT indicators are OFF, the ring disconnection status has not been fixed
yet. Move on to the next step.
3 Replace the relevant cable with a new EtherCAT communications cable.
• Replace the EtherCAT communications cable between Servo Drive A and B with a new cable.
To avoid incorrect wiring, do not remove any other cable.
• If the L/A OUT indicator of Servo Drive A and the L/A IN indicator of Servo Drive B are ON or
blink, the ring disconnection status has been fixed.
• If the L/A IN and L/A OUT indicators are OFF, Servo Drive A or B is faulty. Move on to the next
step.
4 Identify the faulty Servo Drive.
• As in the following figure, connect one EtherCAT communications cable to the ECAT IN and
ECAT OUT connectors on Servo Drive A. If the L/A IN and L/A OUT indicators remain OFF,
Servo Drive A is faulty.
• In the same way, connect one EtherCAT communications cable to the ECAT IN and ECAT
OUT connectors on Servo Drive B. If the L/A IN and L/A OUT indicators remain OFF, Servo
Drive B is faulty.
L1 L2
L5
L3
Servo Drive A Servo Drive B
L4
Servo Drive C
RUN IN OUT
FS
L/A L/A
ERR
RUN IN OUT
FS
L/A L/A
ERR
RUN IN OUT
FS
L/A L/A
ERR

Omron R88D-1SN ECT Series Specifications

General

Feedback	Incremental encoder, Absolute encoder
Position Control	Yes
Speed Control	Yes
Torque Control	Yes
Communication Interface	EtherCAT
Power Supply Voltage	200 to 240 VAC
Output Power	0.1 to 1.5 kW
Input Voltage Range	170 to 264 VAC
Control Method	Sine-wave PWM control
Main Circuit Power Supply	200-240 VAC
Applicable Motor Capacity	0.1 to 1.5 kW
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overheating, Encoder Error
Ambient Operating Temperature	0 to 55°C
Vibration Resistance	4.9 m/s² (10 to 55 Hz)
Shock Resistance	98 m/s2
Weight	Varies by model