Once loosen SB1, criterion classics 1, 7, 8, KS2, 13, 14, make KM2 coil electrify. The KM2 in main circuit advocate touch a head to close, KM2 of classics of three-phase source current makes two-phase of U1, W1 is changed receive, in receiving three-phase winding via R of current limliting resistor again, form on electromotor rotor invert torsion, offset with the inertial torsion photograph that turning, electromotor jockeys quickly.
Turning in electromotor start to rated rotate speed, come from apply the brake of rated rotate speed again in the process that jockey, KS1 inverts control touchs a head not to arise from beginning to end close movement, maintain often open position.
Invert control of apply the brake
KS1 inverts in electromotor start come to close when adjacent and rated rotate speed and maintain. With turning photograph of apply the brake is similar, press SB1, report of dynamoelectric act on one's own judgment in an emergency falls fast. Once loosen SB1, criterion classics 1, 7, 8, KS1, 2, 3, make coil KM1 electrify, form on electromotor rotor turning torsion, disappear of balance of as inertial as what invert torsion makes electromotor jockeys quickly.
5) control stops since cooling pump motor
Press SB6, coil KM4 electrify, aid through KM4 Chang Kaifu touch a head to be locked up oneself to SB6, the KM4 in main circuit advocate touch a head to close, m2 roll maintains cooling pump motor. Press SB5, KM4 coil cuts off the power, m2 stops cooling pump motor turn.
6) move quickly electromotor dot uses control
Journey switch is controlled by the tool carrier handle on lathe. Handle of rotational tool carrier, journey switch SQ will be pressed to fall and close, KM5 coil electrify. The KM5 in main circuit advocate touch a head to close, the electromotor M3 that drive tool carrier moves quickly starts. Restoration of handle of retrorse and rotational tool carrier, SQ journey switch disconnects, criterion electromotor M3 cuts off the power stop turn.
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