Description

FR-D740-7.5K-CHT A VFD is an electrical device used to control the rotational speed of an alternating current (AC) electric motor by adjusting the frequency of electrical power supplied to the motor. Most VFDs used in HVAC applications are inverters using sine-coded PWM technology. A variable frequency drive controls the speed of an AC motor by changing the frequency supplied to the motor.

Specification

• Brand name: Mitsubishi
• Product name: Mitsubishi VFD
• Product model: FR-D740-7.5K-CHT
• Rated power: 7.5 KW
• Power supply type: Three phase
• Supply voltage: 400 VAC
• Rated frequency: 50 Hz
• Country of origin: China

Advantages

1. VFD reduces power when not required.
2. Fully Adjustable Speed.
3. Controlled starting, stopping, and acceleration.
4. Dynamic Torque Control.
5. Provides smooth motion for applications such as elevators and escalators.

Disadvantages

• Electromagnetic interference.
• Inrush current.
• Limited motor lead length.
• Cable failures.
• Motor bearing failures.
• High voltage spikes.
• Corona discharge.