400V Variable Frequency AC VFD Drives for Decanter Centrifuge

Features

Benefits

Frequency Detection
Speed Agree

Both Frequency Detection and Speed Agree signals can interlock with primary and auxiliary machinery as well as safety equipment while the machine is operating.

Overtorque or Undertorque Detection

It is possible to notify the user of an impending fault before it occurs based on the Overtorque or Undertorque Detection settings.

Multi-Step Frequency Reference

Analog inputs are not required due to 17 possible Multi-Step Speeds. Operating speed can be adjusted for optimum performance.

For accelerating high inertia loads, the user can increase the Dwell Function setting and tune Stall Prevention. The Feed Forward function can also be used to assist in acceleration.

Although the stop time is generally long due to a large inertia moment, it is still possible to quickly stop the drive without a braking resistor by using the DC Braking or the High Slip Braking function.

Fast acceleration and deceleration times are possible by adjusting Accel/Decel times and using Intelligent Stall Prevention. This can reduce overall process time.

Fault Restart

The drive can automatically start after being shut off by using the Fault Restart function.

Flux Vector Motor Control

Provides high starting torque and good speed regulation.

Standard Motor Used

Standard NEMA B design motor can be used to eliminate specially designed motors.

Energy Saving Mode

Energy saving operation can be implemented at full speed during light loads.

Item

Specification

Input frequency

50/60Hz

Output frequency

0-400Hz

Overload current

150% rated current 1min.

Control mode

Close-loop vector