Quadraline 7000 Series

The Quadraline 7000 Series is a family of regenerative DC motor drives manufactured by SECO. These drives provide variable speed and torque control for DC motors and are commonly used in paper processing equipment and other industrial machinery requiring precise motor regulation.

The series uses SCR-based power conversion to deliver adjustable, bidirectional (forward and reverse) speed control. Drives accept single-phase 115/230 VAC input and cover a horsepower range from 1/8 up to 5 HP across multiple models. Typical features include potentiometer speed adjustment, acceleration ramping, tachometer feedback options, and internal DC control power supplies.

Products in This Series

• DC drives spanning 1/8 to 1 HP, 0.25 to 2 HP, and 3 to 5 HP ratings, with various model configurations.
• Drives with daughter boards that add expanded or isolated-input functionality.
• ISO Signal Input Cards, isolated input daughter boards that provide galvanic isolation between control signals and the drive, accepting a 0–10 VDC input to command motor speed and direction with adjustable minimum and maximum speed calibration.