The normal operation of stainless steel vacuum pump requires a lot of work as the premise. If a certain work is not done well, it is likely to have a fault during the operation. The light is abnormal operation, and the heavy is forced shutdown, which directly leads to the damage of the pump. Among them, the brake mode of the pump is a key process, and there is not only one brake mode, each with unique characteristics and advantages, playing a different role. So, let's talk about what braking methods need to be understood.
1. Regenerative braking:
It refers to that when the stainless steel vacuum pump decelerates or stops, the energy generated by the braking is fed back to the DC bus through the inverter circuit, absorbed by the resistance capacitance circuit, and the regenerative braking must work when the servo is in normal operation. In case of fault, emergency stop, power failure, etc., there is no way to start the motor, and the operation is automatic.
2. Electromagnetic braking:
The shaft of the vacuum pump is locked by a mechanical device, and the electromagnetic brake is generally started after SV and off, otherwise, the amplifier may be overloaded, and the dynamic brake is generally started after SV, off or the main circuit is powered off, otherwise, the dynamic brake resistance may be overheated.
3. Dynamic brake:
It is composed of dynamic braking resistor, which can shorten the mechanical feeding distance of stainless steel vacuum pump through energy consumption braking in case of fault, emergency stop and power failure. When dynamic brake works, it does not need power supply, but needs external relay control.
The commonly used formulation methods are the above three. In the process of using stainless steel vacuum pump, the braking method should not be used blindly, and the appropriate braking method must be selected according to different use conditions. It is suggested that the relevant contents of the pump should be solved before use, so as to prevent the failure and various kinds of faults caused by unclear operation of a link. It's not worth the trouble!
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