SD700FR Series – Regenerative, Low Harmonic Variable Speed Drives

The Most Compact, Low Harmonic Regenerative VSD

Overview

The SD700FR Variable Speed Drive takes the renowned SD700 family to the next level, integrating active front end (AFE) technology while retaining all the advanced features of the series.

Engineered for maximum energy efficiency and performance, the SD700FR can:

• Reduce THDi to less than 5%
• Adjust and maintain a constant power factor (cos φ) under any load condition
• Stabilize motor voltage, even in the event of significant input voltage drops

As a regenerative 4-quadrant drive, SD700FR allows for energy recovery, reducing operational costs and enhancing system performance.

Key Features & Benefits

• Compact IP54 design, no dust filters required — reduced maintenance
• Operation at 50°C without power derating — reliable in high-temperature environments
• Full Frontal Access (FFA) for easy maintenance and serviceability
• Modular LCL filter and power stage for flexible and scalable configurations
• 4Q Regenerative Drive: recover and reuse braking energy
• Adjustable displacement power factor — maintains high power quality and efficiency
• Built-in RFI filter for EMC compliance
• Built-in dV/dt filter:
  • Voltage rise control 400V/μs–800V/μs, supporting unscreened motor cables up to 300 m
• Conformally coated electronics built to military and aerospace standards, ensuring durability in demanding environments