Generally, there are 3 methods for emergency stop braking of reducer: mechanical braking, generator braking and reverse braking, among which the fastest braking is reverse braking. Let's take a look at the requirements of this braking method.
1. To be able to solve the problem better, it is necessary to know the characteristics of the reducer load and the specific requirements of its use.
2. The motor drive circuit controlled by the single-chip microcomputer needs to have the function of power reverse connection, such as a bridge circuit composed of 4 transistors, or a positive rotation circuit composed of relays.
3. When braking is required, the control circuit switches the short circuit to the state of motor rotation. When the motor speed drops to 0, the power supply is stopped when the motor is to be rotated. .The motor stops.It should be noted that due to the load change, the time required for the motor speed to drop to 0 from the start is not fixed.
In addition, the reducer needs to be equipped with a speed sensor, otherwise it needs to use more complex control skills, such as adaptive control. At this time, you need to grasp it well for professional control.