High Performance; Various Applications - Omron 3G3RX User Manual

International Standards Models (EC Directives and UL/cUL Standards)
The RX Inverter meets the EC Directives and UL/cUL standard requirements for worldwide use.
EC Directives
UL/cUL Standards
Human Environment-friendly, High-performance, General-purpose
Inverters Suitable for Various Advanced Applications
High Performance
High Starting Torque
With the vector control and auto-tuning functions, the RX Series has achieved high starting torque
in excess of 200% at 0.3 Hz.
Trip Suppression
This Inverter features two trip suppression functions: "Overcurrent trip suppression function" to
suppress overcurrent trip during acceleration, and "Overvoltage suppression function during
deceleration" to suppress overvoltage trip during deceleration. Therefore, the RX Series provides
tough operational capabilities regardless of the severe time setting of acceleration and deceleration.
Various Applications
Sensor-less Vector Control at 0 Hz
The RX Series provides sensor-less vector control, which is useful for up/down applications. It can
provide a high torque of 150%, even at a speed reference of 0 Hz (150% torque is available when
the Inverter capacity is increased by one rank). This function contributes to simplification of control
programs and extension of the service life of the brake.
Emergency Shutoff Function
By switching the dedicated switch (SW1) this function enables you to change the multi-function
input (input 3) to the emergency shutoff input. You can directly turn off a motor control power module
without operating the software. This function simplifies construction of safety applications.
Built-in Braking Circuit (up to 22 kW)
The Inverter models with 22 kW or lower capacity incorporate a braking transistor, enabling space-
saving configuration for applications that need rapid acceleration and stop.
Restart Speed Search Function
For a free-running motor (e.g. a fan motor), this function checks the direction of rotation and
frequency, enabling smooth restart of the motor.
High-torque Multi-operation
The RX Series enables balanced torque control for the whole system, in proportion to multiple motor
loads.
Deceleration Stop During Power Failure
During a power failure or momentary power interruption, the RX Series can decelerate and stop a
motor by using the motor braking energy.
Classification
EMC Directive
Low-voltage Directive
1-1 Functions
Applicable standard
EN61800-3: 2004
EN61800-5-1: 2007
UL508C
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