Controller for stopping in place for main shaft

Abstract

Abstract PURPOSE: To stop the shaft in place from both directions of reversal revolution, by generating a positive or negative DC voltage according to the direction of revolution of the shaft to generate the deviation signal of a positive or negative polar character. CONSTITUTION: A speed CV is ordered 1, a deviation voltage 3a with the speed AV of actual measurement 5 is converted 3C into the phase, the trigger angle of SCR3d is controlled into CA=AV, and the DC motor is run in a reference speed. Next, CV, AV are zeroed by the constant position stop command ORCM2. When AV is zero, the signal A2R is produced 11a, the contact 12 is switched 11b for position control. The circuit 11a outputs the initial set voltage with VZR, the shaft is returned with it, the speed is increased to AV, and when the magnet body 10a reaches the 1st constant position, a coarse deviation signal is produced 11a, and it turns again. When the body 10a approaches near the desired region, a bias signal is produced 11a, accurate position deviation signal DV 2 is produced after the arrival, and if DV 2 is zero, the body stops at a constant position by exactly opposing to the saturated reactor at the center. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Yoshitoku Kozai
• 👤 Yoshimoto Fujioka
• 👤 Naoto Oota

Bibliographic Details