FR-A520-7.5K-NA

The Mitsubishi FR-A520-7.5K-NA model is characterized as a transistorized inverter operating at 200V. The device is rated for a capacity of 12.6 kVA and has an output current rating of 33 A, specifically designed for compatibility with a 7.5 kW Mitsubishi 4-pole motor. It features an enclosure with an IP20 rating, providing adequate protection for internal components in largely clean environments.

This inverter excels in handling overload situations, allowing 150% for up to 60 seconds and 200% for brief durations of 0.5 seconds. Its operational frequency range extends from 0.2 to 400 Hz, enabling versatility across various applications. Frequency accuracy is tightly controlled, boasting ±0.2% for analog and ±0.01% for digital settings. Users can define voltage-frequency settings with a base frequency that accommodates constant or variable torque.

The FR-A520-7.5K-NA allows adjustable DC braking, configured from 0 to 120 Hz with customizable durations of up to 10 seconds and at a 0 to 30% voltage. With 15 preset speeds available, it enhances process control over the designated frequency range. Threaded through the processes, the acceleration and deceleration time can be set between 0 to 3600 seconds, utilizing either linear or S-curve profiles to meet specific performance objectives.

An overarching braking torque of 20% is maintained continuously. To meet varying operational demands, control modes include soft-PWM, high carrier PWM, voltage/frequency (V/F), or sophisticated vector control strategies. Designed for effective heat management, the inverter utilizes a forced air cooling system to ensure robust performance during operation.