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FAQ

There is a feed and send system. Now due to the severity of the material is not the same as the two converters often change speed, the workers do not understand their own, often by, often bad now how to use the best way you can use a potentiometer or other method, control of the two frequency converter, synchronous operation. Is to adjust one, and the other also with the kind of frequency, so that you can let the workers themselves to open, and the two inverters, the same manufacturer, the same model, the same load,

Two inverters with the same frequency and start signal, so that it can be synchronized; another way is to do in front of a given frequency inverter with potentiometer, given analog output signal of the first station to do second machines, it can be done simultaneously; but you have to say clearly what is what specific brand series in order to further clear the inverter parameters, otherwise only vague answers.

What is the main function of the frequency converter on the machine tools?

CNC machine tool spindle drive system is also called the main transmission system, is to complete the main movement of the power unit part. The main shaft drive system is changed into the cutting moment and cutting speed of the tool or workpiece installed on the main shaft by the transmission mechanism, and the ideal parts are matched with the feed movement. It is one of the forming movement of parts processing, and its accuracy has a great influence on the machining accuracy of parts. Machine tool spindle drive and the drive is different, the machine spindle motion is usually rotation, unlike feed drive need wire rod or other linear motion device for reciprocating motion, NC cutter and workpiece by rotating the spindle and feed the cutting motion.

What is the difference between inverter energy consumption braking and motor energy consumption braking?

Your question, I think it is the difference between regenerative braking and braking of the motor function for active inverter regenerative braking to use inverter feedback power, so there is the braking inverter of the argument?? First of all, define some of your concepts, the motor is divided into reverse braking, energy consumption braking, regenerative braking three. The energy consumption braking of the inverter is called the energy consumption braking by using the braking resistance in the DC loop to absorb the regenerative electric energy of the motor,The utility model has the advantages of simple structure; no pollution to the power grid (for comparison, action and feedback) low cost; the disadvantage is low efficiency, especially to consume a lot of energy and braking resistance will be in frequent braking capacity will increase.

1, the frequency converter to the motor cable should be shielded cable? 2, whether there are specifications?

Do not use shielded cables have several conditions: the first is from the inverter to motor wear long steel pipe laying cable. Second is the frequency converter to the motor cable line routing (cable bridge, cable ditch), there is no analog signal cable or other weak signal cable. Otherwise, from the debug runtime, if the inverter cable cable line motor and analog signal very close, even if the analog signal shielded cable control cable when the motor running is still very obvious interference of analog signals, especially large power motor.

What are the benefits of installing economizer in industrial enterprises?

Frequency converter is a device that regulates the speed of an electric motor by adjusting the output frequency:1. The frequency converter can only reduce the motor speed by reducing the power supply frequency. The application environment is limited and the automatic control function is not available. It can not be used in many load changing occasions;Have a lot of 2 odd harmonics, frequency converter operation, it will seriously affect other equipment life and efficiency, at the same time use but also affect other precision control of the equipment in the factory, such as computer, automatic control system, monitoring system and so on;3 、 frequency converter serial access to the customer's low-voltage power system, the power supply of the customer security risks.

The functions of frequency converter and UPS are similar, especially the power frequency UPS?

Frequency converter: the principle is AC-DC-AC conversion, output AC amplitude, frequency adjustable, auxiliary function more, more used for AC motor frequency control, no battery;UPS: is intended as a standby power supply uninterruptible power supply, electrical equipment, usually the power is converted to DC and stored through the inverter output fixed amplitude and frequency power supply is cut off the AC power supply, with battery.

High-voltage converterGeneral inverterPump frequency converterEngineering frequency converterCould you tell me some frequency converter according to the class?

Specific answer to your question: 1, high voltage inverter: This is based on the input voltage level terms. Generally speaking, 10KV is more than 6KV voltage high voltage frequency converter, 1140V, 3300V in general is medium (some people also called it the high voltage level of 380V, 660V), 480V, commonly called the low-voltage inverter; 2, pump inverter: This is according to the type of application in terms of. Fan pump inverter mainly refers to the frequency converter used to drag fans, pump load, the main feature is light load, simple application.

What does "EPCU" mean in a frequency converter?

This code indicates external signal interference.It is possible that the power line and the signal line are coming together to check that the ground of the converter is ready.If not yet, that can only be considered in the inverter output end of the inverter output filter, or inverter output reactor to try.Frequency converter (Variable-frequency, Drive, VFD) is the application of frequency conversion technology and microelectronics technology, by changing the power supply frequency of the motor to control AC motor power control equipment.