Sensorless Open and Closed Loop Vector AC Drive. The VFD-B series represents Delta's NEMA1 general purpose AC drive. The VFD-B series drive is rated to provide constant torque, featuring open and closed loop vector control. Delta offers an optional 2000 Hz high speed output that can be factory programmed at the customer's request.
Applications:
Air conditioners for large buildings; woodcarving machine; punching machine; wastewater treatment systems; crane drive and swivel; washing machine; vertical stamping machines; compressor; elevator; escalator; circular loom; flat knitting machine; pasta machine; four-sided woodworking planer, etc
Specifications
Output frequency: 0~600Hz
4 points adjustable V/F curve, Sensorless Vector Control, Field-Oriented Control
Position/Speed/Torque control mode
Sensorless Vector Control 150% torque at 0.5Hz
150% holding torque with speed feedback
Overload : 150% for 1 minute and 200% for 2 seconds
Rotational/Static Auto-tuning for the motor parameters and Auto-tuning for load inertia
Excellence torque limit in all 4 quadrants of operation
Dual RS-485 ports, Fieldbus and PC software tools for applications