The Reliable "V" Combining High Performance with Ease-of-use

This series achieves high precision and fast response that exceeds the performance of conventional general-purpose inverters. They can be used in specialized applications such as line control and elevators.

Motor flux is continuously updated using the motor current and the inverter output voltage. The motor flux is calculated at high precision, improving torque accuracy. Torque fluctuation caused by changes in the motor temperature is reduced by using online tuning with the adaptive flux observer, high torque accuracyis realized regardless of changes in the motor temperature (Vector control with encoder).

High responsiveness with respect to the target speed value is achieved by providing an ideal model adaptive speed control section in the control system. Vibrations are suppressed by reducing the error between the ideal model speed and actual speed with a disturbance suppression section. Improve responsiveness of speed command by using in combination with simple gain tuning! (Inverter internal speed response is 800rad/s, speed control range is 1:1500) The response can be set independently for the ideal model’s speed control section and the disturbance control section.

Avoid resonance by measuring the machine’s resonance point. The motor is automatically accelerated and the resonance frequency in the machine system is analyzed by the setup software. Machine resonance can be avoided easily by combining the analysis results and notch filter function. (Used with the trace card (built-in option))

The motor’s load inertia is estimated online, and the speed control gain and position loop gain are adjusted automatically. Speed control gain and position loop gain adjustments are no longer necessary! The motor’s load inertia, estimated automatically online from the output torque during acceleration / deceleration, provides the optimum speed control gain and position loop gain. The software can set the optimum response automatically with the 15-step responsiveness settings.

By controlling the motor excitation and torque currents separately, speed control and torque control are possible.

• Compatible with SSCNET

• Compatible with CC-Link using optional FR-A5NC

• Compatible with Ethernet using optional FR-V5NE

• Compatible with other open networks using communication option (RS-485, DeviceNetTM, Profibus-DP, Modbus Plus)

• 100% continuous torque at Zero speed

• Auto Tuning to other manufacturer’s constant torque motor with encoder

• Easy to use Parameter Unit

• 4-Quadrant torque control standard

• Multiple parameters for tailoring to a wide variety of applications

• Simple positioning included as standard

• DC Link Reactor standard (V500L)

• Peripheral devices such as power regenerative converter (FR-RC, MT-RC) available

• F700 brochure
• F700 manual