1. The heat dissipation system is different: Generally, the cooling fan in the fan is in the same line as the fan movement, while the two are separated in the inverter motor. Therefore, when the frequency conversion of the fan is too low, it may burn out due to overheating. 2. Frequency conversion ...

1. The wires laid out in the inverter control circuit should be separated from the main circuit cable (power line), so as to avoid the harmonic disturbance components on the side of the main circuit of the inverter from polluting the inverter control circuit; 2. Due to the faulty signal of the inverter and ...

1. After 200-300 hours of operation, the first oil change should be carried out, and the quality of the oil should be checked regularly in the subsequent use, and the oil mixed with impurities or deteriorated oil must be replaced in time. Under normal circumstances, the reducer for long-term continuous operation should be replaced after 5000 hours of operation or once a year.

Overload can be different Servo drives generally have 3 times the overload ability, which can be used to overcome the inertial moment of the inertial load at the moment of start-up, while the frequency converter generally allows 1.5 times the overload. Handling precision Servo control ...

Working environment In the actual application of inverters, most people install inverters directly in industrial sites in order to reduce costs. The job site generally has the problems of large dust, high temperature and high humidity, and in some occupations, there are also metal dust, corrosive gases and so on. There must be ...

There are two types of inverter parking. One form is called "free parking". As the name suggests, it is to quickly "power off" the motor, so that the motor can slide and park by its own inertial force (OFF2 parking); The other form is called "brake parking". So this "brake parking ...

We need to ensure that the capacity of the inverter is matched. First of all, according to the nature of the load, the correct selection of the type of inverter. When selecting the inverter, the current value of the actual motor should be used as the basis for the selection of the inverter, and the rated power of the motor can only be used as a ...

1. In order to save power, the inverter is selected Many manufacturers and salesmen praise how high the power-saving rate of the inverter is, and the user also believes that it is true, and the inverter is selected at a high cost simply in order to save electricity, but the results are greatly disappointed. Whether the inverter can save power after using it is determined by the load driven by it.

With the improvement of the degree of automation of packaging machinery, packaging machine inverter (hereinafter referred to as VFD) plays an increasingly important role in packaging machinery. Capsule filling machine, high-speed tablet press, bottling production line, aluminum-plastic packaging machine, cartoning machine, each equipment will use VFD, mainly ...

As an electronic electric, the inverter itself also consumes electricity (about 3-5% of the rated power). A 1.5 hp air conditioner consumes 20-30W of electricity, which is equivalent to the length of a lamp. The inverter works under the power frequency and has the function of saving electricity, which is practical. However, the conditions are: First, high power and ...

1. Overpressure leads to brake pipe breakdown. The so-called overvoltage of the inverter refers to the fact that the inverter voltage composed of various reasons exceeds the additional voltage, which is reflected in the DC voltage of the inverter DC bus. Overvoltage alarm generally appears when the machine is shut down, and its main ...

CNC cutting machine 1. Gradual reduction method The so-called gradual reduction method is to narrow the scope of shortcomings step by step by elaborating the shortcomings and judging the measurement parameters.

1. The output of the inverter for overvoltage maintenance has the function of voltage detection, and the inverter can actively adjust the output voltage, so that the motor does not bear the overvoltage, and the motor runs within the set voltage range. 2. Undervoltage maintenanceWhen the voltage of the motor is lower than 90% of the normal voltage (some are set to 85% ...

(1) The multi-pronged PWM control method is selected, and the output voltage waveform is close to the sine wave. (2) The rectifier circuit is multiplied, the number of pulses is as high as 36, the power factor is high, and the input harmonic is small. (3) Modular design, compact structure ...

When the differential pressure flowmeter (V-cone flowmeter) is used in the field, it often encounters such and such problems, but the reason for it is investigated, as long as it is installed correctly, the primary problem is on the secondary surface differential pressure transmitter, and the following is the first to introduce these problems to us ...

(1) Frequent starting, resulting in excessive temperature, causing overheating maintenance of soft starter. (The number of starts of the soft starter should be controlled to no more than 6 times per hour, especially for heavy loads) (2) During starting, ...

Bypass cabinet: The cabinet is equipped with high-voltage inlet and outlet isolation switches QS1 and QS2. Among them, QS1 is a single-pole single-throw variable frequency incoming knife switch, and QS2 is a single-pole double-throw power frequency and variable frequency outgoing knife switch. The bypass cabinet is a high-voltage environment, please investigate the status of the live display and electromagnetic lock to ensure safety before ...

In order to avoid the interference of the control signal line between the PLC and the inverter by the space electromagnetic field, the shielding wire can be connected to the outer layer of these control signal lines to improve the anti-interference ability of the system. This kind of wiring must be noted, and only one point can be selected for the grounding point of the shield. Whether it's on the PLC side, or ...

Classification of Reynolds frequency converters: There are many classification methods for Reynolds inverters, which can be divided into voltage-type inverters and current-type inverters according to the classification of the main circuit operation method; According to the classification of switching methods, it can be divided into PAM operation.

1. Advanced technology: (PC or PLC) is used to make the equipment complete the intelligent constant pressure variable supply water supply according to the requirements of water supply and fire protection; 2. High efficiency and energy saving: the system can set the pressure according to the demand, and the system can actively adjust according to the set pressure.

1. The inverter can not speed up the frequency increase when it starts with load The 1366S-BR 040 inverter carries a load of 37 kW fan motors. During the trial operation, it was found that the inverter could not speed up the frequency increase normally, and the HIM display was speeding up. The inverter only swings at 1-4 Hz, and the motor emits a buzzing ...