Control Techniques UNI1403 ​ The Control Techniques Unidrive UNI1403 is a 1.5kW, 380...480V AC drive. The UNI1403 can operate in five modes including Open Loop V/F Control, Open Loop Space Vector Control, Closed Loop Flux Vector Control, Servo and Regeneration. The variable speed drive can be configured in minutes for a variety of industry standard applications.