MOTOR FEATURES

■ Induction Motor Features

1、Generally, Micro Induction Motor refers to the motor rotated by the induction. Induction Motor relies on capacitor and electromagnetism when starting and rotating. Though its starting torque is not very high, it has a simple structure, high efficiency and can rotate continue.

2、The single-phase motor have a reverse direction with the rotating's when operated. Pis change the direction of single-phase motor rotation only after bring the motor to a stop.

3、Three-phase motor relies on three-phase supply. It has a high efficiency and can get a high starting torque.

■ Reversible Motor Features

1、Reversible Motor has a friction brake at the back of the motor body, which is designed for applications where reversal of direction is frequently required. For the friction brake, pls check Draw 1. The damp with spring impacts the rotating brake disk and supplies with continuous press. The functions of the friction brake are as following:

2、The keeping torque or more of the friction brake and over-run are listed in the table 1. It is only for reference. As it will change according to the rotating period as well as the temperature. Pls also note that the torque may be a little lower than the one listed in the table when being operated initially.

3、The Reversible Motor, like Induction Motor, is started by the capacitor and has a same torque characteristic with the Induction Motor. But the Reversible Motor is designed with a higher starting torque to increase the instant reversal features. Pls check drawing 2.

■ Table 1. Keep Torque And Over-run

■ Power Off Activated Type Electromagnetic Brake Motor Features

1、 Structure and Operation Principle

Table 3 is the structure for the Electromagnetic Brake Motor. We produce the Power Off Activated Type. Exerting the voltage on the winding, it will magnetize the armature pressed by the spring. The motor will be in a stage of rotating, when there is a backlash between the armature and brake rim. Once the winding voltage is cut down, under the influence of spring, the armature press the brake rim, which will create a brake force. Then the motor gets to a stop.

2、 The Characteristics of the Electromagnetic Brake

It is an AC Power Off Activated Type Electromagnetic Brake which is connected directly with the motor. It will get to a blink stop and keep load when the supply is power off. It will keep the torque between 0.05-2.0 N.m. It is especially suitable for the safety brake in the circumstance of unconsciously power off. The electromagnetic can change its direction frequently. It can be stopped 6 times in a minute. But be sure that it lasts for 3 seconds or more.

After we set a commutating loop in the brake, it can share the power supply with the motor.

※The value is standard. It will be change in different condition. When actually used, be sure to make the surface temperature of the motor less than 90 °C.

3、 The Features for the Starting Time and Brake Time

The starting time means the time for the motor's starting time plus the electromagnetic brake release time. The brake time means the time from power cut off to the time of motor completely stop. The over-run, starting time and brake time will be different according to the different applications.

■ Table 2. Electromagnetic Brake(Power Off Activated Type)

■ The Features Of The Speed Control Motor

1、It is a unit of the controller and motor. It only needs to connect one time. The speed can be easily adjusted by the potentiometer. The controller is fixed with speed-control loop, capacitor, speed enactment and etc. There is no function of instant stop in the unit.

2、The controller can make the speed variable between 90-1350rpm at 50 Hz and 90-1650rpm at 60Hz.

3、Please don't run motor at low speed for long time avoiding overheat.