The choice of inverter braking resistor - hope Senlan

What are the advantages of inverter power correction? Many brands of inverter power boards, driver boards, and motherboards can be universal, as long as the type, volume, and hardware are the same, and the desired power and voltage value can be obtained by correcting the manufacturer's parameters. ...

There is a circuit breaker QF and a communication contactor KM between the power supply and the inverter, when the inverter does not need to be used for a long time. or when the equipment is overhauled, the circuit breaker is used as an isolation switch, which can block the power supply and ensure the safety of maintenance. It has maintenance functions such as overcurrent and undervoltage. The main power of the inverter ...

Inverters often encounter a variety of problems during commissioning and use, during which overvoltage is the most common. After the overvoltage occurs, in order to avoid damage to the internal circuit, the overvoltage protection function of the inverter will work, so that the inverter will operate intermittently, resulting in the equipment can not be ...

When various factory equipment uses frequency conversion speed regulation, harmonic disturbance will occur on the power supply side and motor side of the inverter (VFD), which will form electromagnetic disturbance to the power supply network and other electrical equipment near the VFD. In addition, in order to ensure the long-term reliable operation of the VFD, the wiring of the VFD is very important. ...

1. Discrimination The inverter power module mainly includes IGBT, IPM, etc., check whether the appearance has exploded, and whether there are ablation marks between the terminal and the connected printed board. Use a multimeter to check whether C-E, G-C, G-E have been passed, or use a multimeter to measure whether the resistance of P to U, V, W and N to U, V, W is inadequate.

1. Incoming line maintenance Incoming maintenance is the maintenance of the user's inlet end and inverter, including lightning protection maintenance, grounding maintenance, phase loss maintenance, inverted phase maintenance, unbalance maintenance, overvoltage maintenance, transformer maintenance and so on. These maintenance devices are generally installed at the input of the inverter ...

SB150 SB150 is a delicate and practical inverter launched by Sunland, with exquisite and delicate appearance, exquisite and perfect circuit, simple and practical function, and clear and reasonable menu distinction. At the center of the SB150 is Sunland's high-performance optimized space vector ...

1. The control accuracy of the vector type is higher than that of the general type. 2. The vector type has a large output torque at low speed, which can make the motor get a larger starting torque, and is suitable for use in the occasion of heavy load starting, such as: high-power long belt, hoist, etc. If it is used in some of the more common fields ...

Now, the frequency conversion speed regulation system has been widely used in the industrial production of various small and medium-sized enterprises. This is all due to our ability to provide accurate speed control and complete stepless speed regulation. Therefore, it can easily control the ascent and descent of mechanical transmissions, traverse ...

Advantage 1: Energy saving The motor adopts frequency converter speed regulation, and its power can be improved by 5%-10%. The inverter accounts for 20%-30% of the total capacity of the communication motor in the drag of load equipment such as fans, pumps, extruders, mixers, etc., which has a significant energy-saving effect, because the consumption of the fan and water pump is significant.

The wiring of the inverter cabinet refers to the correct connection between the inverter and the motor, power supply and other equipment. The wiring requirements of the cabinet are carried out in accordance with the electrical principles and equipment specifications to ensure the normal operation and safety of the system. The following is the cabinet ...

(1) Set the power of the motor, the number of pole pairs, and check the operating current of the inverter. (2) Set the maximum output frequency and base frequency of the inverter and set the torque characteristics of the motor. Pressure/Frequency (V/F) Operators ...

Assuming that the inverter has a built-in braking unit and additional braking resistors, it is important to pay attention to the correct wiring of the braking resistors. The braking resistor should be connected between the P terminal and the DB terminal, but not between the P terminal and the N terminal, otherwise the three-phase rectifier bridge will operate at full load when it is not working, resulting in the equipment being unable to ...

Dynamic "fast response" DC motors are rectified constrained and excessively high di/dt is not allowed. The asynchronous motor is only constrained by the capacity of the inverter, and the multiple of the forced current can be very high, so the speed echoes quickly, generally reaching the millisecond level, which has surpassed the DC motor in terms of speed. At low frequencies ...

A frequency converter (VFD) is an electrical energy control device that converts a power supply to another frequency by using the on-off effect of power semiconductor equipment. It can realize the soft start, frequency conversion speed regulation, improved operation accuracy, power factor, overcurrent/overvoltage/overload protection of AC asynchronous motor, etc.

It is hoped that Sunland low-voltage inverter can be divided into four series: 1.HG1000 high-performance light-load intelligent inverter, the most cost-effective, the new series is widely used in medicine, food, packaging, cable, printing and dyeing, washing, centrifuge ...

From September 15th to 19th, the 22nd China International Industry Fair was held at the National Convention and Exhibition Center (Shanghai). As the first national industrial exhibition held under the normalization of epidemic prevention and control this year, the theme of this expo is "Intelligence, Interconnection: Enabling the New Development of Industries".

1. Step-by-step decreasing method The so-called gradual reduction method is to gradually reduce the scale of the problem through the analysis of the problem phenomenon and the identification of measurement parameters, and finally implement it to the specific circuit or component that causes the problem. In essence, it is a certainty, a negation, a negation, a negation, a final ...

What happens when the inverter-controlled motor presses the abort button, and the motor is not controlled to speed up? 1. If it is a newly installed inverter, it is generally necessary to consider the wiring problem, you can first change the parameters to switch to the panel control, the panel is given the frequency, and then see if the inverter operation will appear in this ...

Hope Sunland Technology Co., Ltd. is a national key high-tech enterprise dedicated to the research and development of high, medium and low voltage frequency conversion technology and the design, development, production, sales and service of related products.