基于PLC的通风机转速调节控制系统设计

configuration technology,A set of fan frequency conversion speed control systemwith Siemens high reliability as the core controller is designed.This system consists of power supply,transmission,braking,monitoring several parts,four parts are the use of special design,to prevent a problem or system maintenancecaused by the emergence of ventilator shutdown accident,which makes the reliabilityof the system has been improved.The speed regulation control of ventilator is widelyused in various industrial applications,the use of ventilator plays a safe role in safetyproduction and material storage,and the design of the system is mainly used forindoor gas concentration detection,detection signal input to programmable controller.Through the comparison of the given signal and the output of the operation,thecontrol effect of the ventilator inverter on the start and stop and speed regulation isachieved,which achieves the effect of environmental protection,energy saving andgood indoor density control.According to the design technology,the design of Ventilator speed regulation controlsystem is carried out,and the system design is carried out by using programmablecontroller..KEY WORDS:Ventilator:Redundancy:Frequency control