Senlan frequency conversion cabinet wiring steps

The main manifestations of the disturbance of the inverter in the application are: higher harmonics, noise and oscillation, load matching, heat generation and other problems. These disturbances are unavoidable, because the input part of the inverter is a rectifier circuit and the output part is an inverter circuit, both of which are made up of nonlinear components that play a switching effect.

The selection of the inverter should be considered according to the type of controlled object, speed regulation scale, static speed accuracy, starting torque, etc., so that it can be easy to use and economical together with meeting the process and production requirements. According to the different forms of devices, it can be divided into four types, which can be divided into four types according to the controlled motor power and field device ...

1. The "FUNC/DATA" key is a programming key, press this button once to convert the operation mode, and press it again to read and write the function code; 2. The "SET/>>" button is the display switch and shift key, press this key to switch the display content, and press it again to ...

In the process of practical speed regulation, a general frequency-adjustable communication power supply can not meet the requirements of speed regulation and control of asynchronous motors, and must also take into account the problems of using the magnetic field of the motor, pressing the starting current and obtaining the desired torque characteristics, such as low-frequency torque characteristics.

First, according to the classification and selection of inverters 1. Inverters can be divided into general-purpose inverters and special inverters. 2. General-purpose inverters are mainly used in: general fan pumps (referring to inverters that only drag a single fan or pump) loads, mechanical loads, and loads requiring high overloads.

If the drive 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 running, resulting in the equipment can not be ...

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 ...

1. Select the inverter according to the load characteristics Second, when selecting the inverter, the current value of the practical 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 reference. Secondly, it should be fully considered that the output of the inverter contains higher harmonics, which will form the power factor of the motor.

The gantry milling machine is a machining equipment for processing larger workpieces, and its electrical control system includes two parts: the main transmission of the workbench and the logical control of the feed organization. Henan Jiaozuo Maike Company has a gantry milling machine, which has been used for many years since the 70s. The main drive of the operating table of the gantry milling machine is selected ...

The external terminals of the inverter, RH, RM, RL, are speed control terminals. Through the combination of these terminals, three-speed and seven-speed control can be completed. In addition, the other terminals can be redefined, and the fifteen-speed speed can be controlled. ...

It is necessary to separate the signal line from the power line: when using analog signals for long-distance control of the inverter, in order to reduce the disturbance of the analog amount from the inverter and other equipment, please separate the signal line of the control inverter from the strong current circuit (main circuit and sequential control circuit). Inverter ...

(1) The VFD should be installed in the control cabinet. (2) The VFD is best installed in the center of the control cabinet; The VFD It should be vertically installed with the top and bottom protected from large parts that may obstruct the exhaust and intake. (3) VFD control cabinet or partition, or the upper and lower parts of the necessary device ...

The signal line and the power line must be routed separately: when using the analog signal to remotely control the inverter, the signal line of the control inverter and the strong current circuit (main circuit and sequential control circuit) can be separated from the inverter and other equipment to the analog interference, and the interval should be more than 30cm. Signal ...

The control specifications of the inverter cabinet include reliability, accuracy, safety, environmental habits and versatility, etc., which are important guarantees to ensure the normal operation and safe production of the inverter cabinet control system. Reliability specification: The control system should have high reliability and can be used for a long time.

The rotational speed of an induction AC motor (henceforth referred to as a motor) is approximately determined by the number of poles and frequency of the motor. The number of poles of the motor is fixed by the operating principle of the motor. Since the number of poles is not a successive value (a multiple of 2, e.g. 2,4,6), ...

1. What is frequency conversion resolution? What's the point? In the case of digitally operated inverters, the output frequency is given in a given order, even if the frequency command is an analog signal. The smallest unit of this gradient is called the variable resolution. Change...

1. Delta's super password-B series: 57522; - H-series: 33582; S1 series inverter universal password: 575222. Second, Huifeng inverter (that is, now Ou Rui inverter), the general super password of its products is: 18881500-G 1500-P 1000- ...

1.SB200 fan pump special inverter, widely used in textile, printing and dyeing, washing, cable, packaging, machinery, ceramics, constant pressure water supply, constant temperature control or various OEM. 2.HG1000 high-performance light-load intelligent inverter ...

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. ...

Recently, it is expected that Sunland will successfully participate in the 8th Guangxi World Sugar Industry Skills and Equipment Expo with excellent inverter products. According to the expected Sunland company leakage, the exhibition of the World Sugar Industry Skills and Equipment Expo, throughout the exhibition to domestic equipment manufacturers, there is no lack of foreign outstanding enterprises, exhibitors ...