Mitsubishi Real Sensorless Vector  control ensures the highest level of driving performance

A700 stores a ‘map’ with the key motor characteristics in its memory and calculates the voltage needed to produce the necessary shaft torque and an output frequency which will keep the magnetizing flux and torque producing flux at right angles to each other – this is crucial to emulating DC drive/motor performance. RSV’s secret lies in new ‘Magnetic Flux Observer’ firmware that calculates the magnetic saturation level of the motor and further ‘trims’ the output voltage to compensate for it; by avoiding motor ‘over-fluxing’, a wider speed range and smoother low speed operation of the motor than ever before is ensured.

High accuracy/fast response speed operation by the vector control can be performed with a general-purpose motor without encoder.
•  Maximum of 200% high torque can be generated at an ultra low speed of 0.3Hz (0.4K to 3.7K).
• Torque control operation can be performed also. (Torque control range 1:20, absolute torque accuracy +_20%, repeated torqueaccuracy +_10%)

             Speed control range 1:200 (0.3Hz to 60Hz driving only)
             Speed response 120rad/s

A700 programmability provides true intelligence inside the drive – a simple solution for complex applications.

The life of a newly developed cooling fan has been extended to 10 years of design life. The life of the cooling fan is further extended with ON/OFF control of the cooling fan. Longevity of capacitor was achieved with the adoption of a design life of 10 years.

300 rads/sec response time means lightning fast response to sudden load changes.

A700 uses servo-drive technology to compensate automatically for changes in load inertia.

The RS-485 terminals are equipped as standard in addition to the PU connector. You can make RS-485 communication with the operation panel or parameter unit connected to the PU connector. As a USB connector (USB1.1B connector) is standard equipped, communication with a personnel computer can be made with a USB cable only.

Keeps the motor under control even if supply power is lost. The motor can be decelerated to a stop when a power failure or undervoltage occurred to prevent the motor from coasting. For fail-safe of machine tool, etc., it is effective to stop the motor when a power failure has occurred.

Eliminate the need for external brake units on drives up to 30 HP

Advanced driving performance makes it possible to support a wide range of applications from variable-speed applications such as conveyance and chemical machines to line control applications such as winding machines and printing machines.

• A700 brochure

• A700 manual