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OMNUC G5-Series AC Servo Drives Users Manual (Built-in MECHATROLINK-II communications type)
Features and System Configuration
1-1 Outline
Outline of the OMNUC G5 Series
The OMNUC G5-Series AC Servo Drives (Built-in MECHATROLINK-II communications
support type) are a series of Servo Drives supporting the MECHATROLINK-II high-speed
motion field network.
When you use it with the MECHATROLINK-II Position Control Unit (CJ1W-NCF71 or CS1W-
NCF71), you can create a sophisticated positioning control system. Also, you need only one
communications cable to connect the Servo Drive and the Controller. Therefore, you can
realize a position control system easily with reduced wiring effort.
With real time autotuning, adaptive filter, notch filter, and damping control, you can set up a
system that provides stable operation by suppressing vibration in low-rigidity machines.
Features of the OMNUC G5 Series
The OMNUC G5 Series has the following features.
Data Transmission Using MECHATROLINK-II Communications
When you use it with the MECHATROLINK-II Position Control Unit (CJ1W-NCF71 or CS1W-
NCF71), you can exchange all control data between the Servo Drive and the Controller through
data communications.
Since the various control commands are transmitted via data communications, Servomotor's
operational performance is maximized without being limited by interface specifications such as
the response frequency of the encoder feedback pulses.
Therefore, you can use the Servo Drive's various control parameters and monitor data on a
host controller, and unify the system data for management.
Achievement of Accurate Positioning by Full Closing Control
Feedbacks from the external encoder connected to the motor are used to accurately control
positions. Accordingly, position control is not affected by deviation caused by ball screws or
temperature.
Wide Range of Power Supplies to Match Any Necessity
The OMNUC G5 Series now has models supporting 400 V for use with large equipment, at
overseas facilities and in wide-ranging applications and environment. Since the utilization ratio
of facility equipment also increases, the TCO (Total Cost of Ownership) will come down.
Safe Torque OFF (STO) Function to Ensure Safety
You can cut off the motor current to stop the motor based on a signal from an emergency stop
button or other safety equipment. This can be used for an emergency stop circuit that is
compliant with safety standards without using an external contactor. Even during the torque
OFF status, the present position of the motor is monitored by the control circuits to eliminate
the need to perform an origin search when restarting.
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