MM420变频器用来控制搅拌电机的转速，由S7 200编程控制，运行输

The MM420 frequency converter is used to control the speed of the stirring motor, which is programmed and controlled by the S7 200. The operation output port is connected to the control core. This inverter is controlled by a microprocessor and uses insulated gate bipolar transistor IGBT with modern advanced technology as the power output device. Therefore, they have high operational reliability, and programming them can realize the diversity of their functions. The switching frequency of pulse width modulation is optional, so the noise caused by the switching frequency can be greatly reduced The designed protection measures provide good protection for the inverter and the motor. The MM420 adopts the typical connection mode powered by three-phase power, and the power supply circuit of the MM420 is also protected by a circuit breaker. In addition, the circuit ground wire should be connected to the motor housing and the ground wire of the power supply to play an anti-interference role.

The MM420 drive is used to control the speed of the mixing motor and is programmed by the S7 200, with the running output port connected to the control core. The drive is controlled by a microprocessor and uses the insulated gate bipolar transistor IGBT with modern advanced technology level as a power output device. Therefore, they have high operating reliability, programming it, they can realize the diversity of functions, its pulse width modulation switching frequency is optional, so the noise caused by the switching frequency can be greatly reduced, the internal design of protection measures for the inverter and motor provides good protection. The MM420 uses a typical three-phase power supply connection mode, and the MM420's power supply line is protected by a circuit breaker. In addition, the circuit ground line should be connected with the motor housing, power supply ground wire, play the role of anti-jamming.

MM420 frequency converter is used to control the speed of mixing motor, which is programmed and controlled by S7 200, and the operation output port is connected to the control core. The inverter is controlled by microprocessor and uses IGBT with advanced technology as power output device. Therefore, they have high operation reliability. If they are programmed, their functions will be diversified. The switching frequency of pulse width modulation is optional, so the noise caused by switching frequency can be greatly reduced. The protection measures designed inside provide good protection for inverter and motor. MM420 adopts the typical connection mode of three-phase power supply, and the power supply line of MM420 also adopts the circuit breaker for protection. In addition, the circuit ground wire shall be connected with the motor shell and the ground wire of the power supply to play the role of anti-interference.