Mitsubishi FREQROL-A770 Series Variable Frequency Drive

Name: Mitsubishi FREQROL-A770 Series Variable Frequency Drive
Price: 105064.0 USD
Availability: BackOrder

Real sensorless vector control variable frequency drive for up to 700HP capacities. 0.2 to 400Hz frequency range.

Effective Sept 11th, 2025 Mitsubishi has added a 9.75% surcharge to this product. The surcharge will appear as a separate line item on each sales order.

Highlights...

By Mitsubishi
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Features

Control method:
- Induction motor: Soft-PWM control/high carrier frequency PWM control
  - V/F control, advanced magnetic flux vector control and real sensorless vector control
Torque:
- Induction motor:
  - up to 200% at 0.3Hz
Capacity: up to 700HP
Output frequency range: 0.2 to 400Hz
Frequency setting resolution:
- Analog input:
  - 0.015Hz/60Hz (terminal 2, 4: 0 to 10V/12 bits)
  - 0.03Hz/60Hz (0 to 5V/11 bits or 0 to 20mA /approx. 11 bits for terminals 2/4, 0 to 10V/12 bits for terminal 1)
  - 0.06Hz/60Hz (0 to ±5V/11 bits for terminal 1)
- Digital input: 0.01Hz
Frequency accuracy:
- Analog input: ±0.2% of max, output frequency (25°C ± 10°C)
- Digital input: ± 0.01% of set output frequency

The Mitsubishi FREQROL-F800 Series Variable Frequency Drive is a high-performance pump and fan application solution that combines precision and reliability with the flexibility of real sensorless vector control (up to 700HP capacity). Units can operate reliably in ambient temperatures ranging from -10 to 50°C. The FR-A770 Series supports 200% starting torque at 0.3Hz, with an output frequency range of 0.2 to 400Hz.

The FR-A770 Series is designed to operate via 690V supply system. These units offer a 200:1 operating speed range even in open loop mode, with programmability via the FR-A700 Series PLC feature. With automatic gain tuning that compensates for load inertia changes and an ultra-fast response of up to 300 radians per second, the FR-A770 ensures smooth, consistent operation.

Built with comprehensive safety and control features, the FR-A770 Series includes power down braking to maintain motor control during power supply loss, ensuring operational safety. Remote I/O capability allows all drive inputs and outputs to be monitored and controlled via network (Modbus-RTU), while the integral radio filter on all drive sizes ensures compliance with EU electromagnetic emission directives. The convenient USB port offers a straightforward connection to the FR-Configurator software for commissioning.