1-1 Functions Human-/Environment-friendly, High-performance, General-purpose Inverters Suitable for Various Advanced Applications 1 „ High Performance High Starting Torque With the vector control and auto-tuning functions, the 3G3RX Series has achieved high starting torque in excess of 200% at 0.3 Hz. Overview 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 3G3RX 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 3G3RX 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 3G3RX 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 3G3RX Series can decelerate and stop a motor by using the motor braking energy. 1-2