SYSDRIVE 3G3RV-V1 Frequency Inverter

Open-loop Vector Control

High Starting Torque and High-precision Speed Control during Open-loop Vector Control

Select V/ f control without PG, V/ f control with PG, or open-loop vector control for the Inverter.
Speed control precision of 0.2% has been achieved for open-loop vector control, ensuring precise control even for variations from light loads to heavy loads. High starting torque has also been achieved, up to 150% at 0.5 Hz.

Select Constant or Variable Torque

Select Overload Detection According to Application

Match the overload detection conditions to the application by selecting constant torque (CT) for loads such as conveyors or cranes, or variable torque (VT) for loads such as fans or pumps. (The setting range for Inverter parameters, such as the carrier frequency, overload resistance, and maximum output frequency, will vary.) The torque characteristic can also be effectively selected for V/ f control or open-loop vector control.

Complete Autotuning Functions

Autotuning with a Stationary Motor

Autotuning can be used to set motor constants for open-loop vector control and motor line resistance for long motor cables.
Autotuning motor constants for open-loop vector control can even be performed without turning the motor, making autotuning easier than ever.

The following types of autotuning are supported.
  • Rotational autotuning for open- loop vector control
  • Stationary autotuning for open- loop vector control
  • Line resistance autotuning using stationary autotuning for V/ f control or open-

    loop vector control

DeviceNet Communications

DeviceNet Communications Card Supported by All Models (Same as FV Series)

A 3G3FV-PDRT1-SINV1 DeviceNet Communications Card can be mounted to provide a DeviceNet interface for the Inverter.

•  Remote I/ O Communications: A PLC connected via DeviceNet can send speed references and operation commands or it can monitor Inverter status. Standard settings provide two output words from the PLC to the Inverter and two input words from the Inverter to the PLC. Using advanced remote I/ O functions, parameters specified by number in the Inverter can be written from the PLC.

•  Message Communications: Explicit messages can be sent from the PLC to achieve many control and monitoring functions for the Inverter, including specifying speed references, specifying forward/ reverse commands, reading errors, and more.

Multi-function Inputs and Outputs

Freely Allocated Analog Inputs/Outputs, Contact Inputs/Outputs, and Pulse Outputs

Two analog outputs and one pulse train output enable monitoring of system status, including output frequency and output voltage.

Likewise, two analog inputs accommodate functions such as output voltage bias and acceleration/ deceleration time gain, while five contact inputs accept multi-step speed references, emergency stops, etc. Two contact outputs allow frequency coincidence, excessive torque detection, and other functions. The ability to freely allocate functions to all of these inputs and outputs allows the user to customize system functions.

Versatile Frequency Reference Inputs

Frequency references can be input via an analog input (voltage or current), Digital Operator, pulse train signal, or DeviceNet communications.

Built-in Braking Transistor

Complete Braking Functions 

All models of 18.5 kW or less are equipped with a built-in braking transistor that allows powerful braking by simply connecting a braking resistor.

Protective Functions

Protective Functions Ensure Safety 

A high-speed, high-precision current limiting function suppresses tripping from excessive current, and a stall prevention function for acceleration/deceleration, power loss compensation function, and fault retry function combine to improve continuous operation.

A PTC thermistor built into the motor protects the motor from overheating.

Digital Operator (LED: Standard, LCD: Optional)

Faster Setup and Maintenance for Easier Operation

Complete support is provided for the Digital Operator's Quick Program Mode for operation with a minimum of parameter settings, Verify Mode for batch confirmation of changed parameters, and a copy function for uploading/ downloading parameters if replacement should be required. A Japanese/ English- language LCD Digital Operator is also available as an option.

Maintenance

Easy Maintenance and Inspection 

• A detachable control circuit terminal makes it possible to replace the unit  without disconnecting the wiring.

• Screw terminals are used for the main circuit terminals and control circuit terminals to simplify wiring and enhance reliability.

• Independent wire covers enable easier wiring.

• ON/ OFF control for the cooling fan lengthens the service life of the fan, and enhances reliability. Fan replacement is also quick and easy due to the detachable fan design.

• The accumulated running time and cooling fan operation time can be recorded and/ or displayed.

Energy-saving Control Functions

Energy-saving Operation for Maximum Motor Efficiency

The voltage reference (during V/ f control) or slip frequency control (during vector control) constantly maximizes motor efficiency in response to load and turning speed. This enables a superb energy- saving effect for fans, pumps and other machinery.

Maximum Applicable Motor Capacity

Applicable to Motors with 0.4- to 110-kW or 0.4- to 160-kW Capacity

The RV Series accommodates a wide range of motors, with low to high capacity.

Power Supply

Operates from a Variety of Power Supplies

Two power supply voltage series enable versatile use.

• 3-phase, 200-V series (200 to 240 V)

• 3-phase, 400-V series (380 to 480 V)

• Standard models can also be connected to DC power supply devices and other converters.

Standards

Complies with Major International Standards

Standard models comply with UL/cUL standards for the U.S. and Canada, and CE standards for Europe.