Omron RX - 2, Руководство пользователя

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1 Overview
1 - 2 High-function General-purpose Inverter RX2 Series User’s Manual
1-1 Overview of Functions
The High-function General-purpose Inverter (Model: 3G3RX2) is a human- and environmental-friendly
inverter suitable for a variety of applications. It provides various features, such as convenient functions
intended for ease of use and diverse I/O. In addition, the 3G3RX2 Series complies with safety stan-
dards for any nations such as IEC Standard. You can use this product as a world standard inverter.
The 3G3RX2 Series Inverter has the following features.
The 3G3RX2 Series provides high performance and high functionality, which are the requirements of a
general-purpose inverter. It enhances the capability to support applications and addresses diverse
needs with optimal performance.
 Adoption of the Triple Rating Function (Normal Duty, Low Duty and Very Low
Duty)
At 3G3RX2 the previous heavy and light load modes were renewed to Normal Duty (ND) , Low
Duty (LD) and Very Low Duty (VLD) to provide the triple rating function.
The Low Duty is available for a fan, pump, or other device that operates at the rated motor torque or
less in a normal state. Setting the
Low Duty causes the rated current of the inverter to increase,
enabling the inverter to drive a motor that is one size larger in capacity.
However, pay attention to when selecting an inverter because the overload capacity decreases to 1
minute, 120% of the rated current.
Precautions for Correct Use
Switching the Normal, Low and Very Low Duty changes the setting ranges and default data
of the related parameters. Refer to 6-1-1 Inverter Load Rating Settings on page 6-3 for details.

Implementation of the Programming Function
The 3G3RX2 Series has the built-in simple sequence function (DriveProgramming), which enables a
stand-alone inverter to perform simple sequence control.
You can create programs easily in flowchart or text language method by using the CX-Drive.
For details, refer to the DriveProgramming User’s Manual (Cat. No. I622).

Implementation of the Vector Control Functions
With sensorless vector control, the inverter realizes a high starting torque at 200% of the motor rat-
ing in 0.3 Hz.
With 0-Hz sensorless vector control, the inverter can also output a high starting torque at 150% of
the motor rating in even lower frequencies.
The inverter has various vector control functions as listed below, in addition to V/f control.
• Sensorless vector control
• 0-Hz sensorless vector control
• Sensor vector control
1-1-1 Features of 3G3RX2 Series Inverter
Enhanced Application Support