Our goal is to become your true partner in the field of VFD parts in China. Based on power electronics technology, motor drive and control technology, relying on advanced production equipment and rigorous testing processes, it provides customers with low-voltage and medium-voltage inverters, soft starters and servo control systems and related industry solutions. With competitive prices and guaranteed product quality, it is a good choice for your long-term cooperation.
Why choose us
Product Application
Our products mainly serve the three fields of equipment manufacturing, energy conservation and environmental protection, and new energy, and are widely used in chemical, lifting, textile, metallurgy, machine tools, rubber, wire and cable and other industries.
Our Certification
The company has passed ISO9001 quality management system certification, ISO14001 environmental system certification, inverter products have passed EU CE certification, and soft start products have passed China 3C certification.
Our Service
According to customer needs, we help customers select products, answer customers' technical questions about products, help customers familiarize themselves with product characteristics, give customers professional advice, and help customers accurately select products.
Product Market
Our products are mainly sold in mainland China, Southeast Asia and Northeast Asia.
Advantages of VFD Parts
Prevent hardware damage
Braking resistors in a motor control system prevent hardware damage. It avoids faults within a VFD.
Enhance the capacity of braking torque
Braking resistors within VFD can enhance the capacity of braking torque.
Faster &more controlled braking
These resistors can cause large speed variations between motor & drive to feedback extra energy.
Multifunctional use
These resistors are most frequently used in the industrial sector. These resistors are mostly preferred by experts because they are extensively more fitting for a variety of braking mechanisms.
Braking resistors are used where the speed of a motor exceeds the speed that is set through the variable frequency drive (VFD) otherwise when rapid deceleration is necessary. These resistors are used in a motor control system to avoid hardware damage & faults within a VFD. These resistors are applicable in train systems & motor speeds. These resistors are required in particular operations because the motor controlled through the variable frequency drive acts as a generator & power supply will be back to the VFD instead of to the motor.
This resistor will help to stop or slow down a motor by dissipating surplus voltage produced by the decelerating motor. Braking Resistors are used in various motor-based applications which are controlled through the driver. The function of a brake resistor is to assist in performing motor braking otherwise repairing by absorbing restored braking energy & dissolving it like heat through rheostatic resistors. Braking resistors within VFD (Variable Frequency Drive) will enhance the capacity of braking torque, generating more controlled & faster braking. This resistor will dissipate regenerated power to maintain the bus voltage from exceeding the speed limit of the drive.
How Braking Resistance For VFD Prevent Damage
Braking resistors are introduced into a motor control system to prevent VFD hardware damage or nuisance faults.
In certain operations, the motor controlled by the VFD acts as a generator, with power flowing back towards it rather than to the motor. A motor will act as a generator whenever there is an overhauling load—or the drive is being used to decelerate the motor.
This causes the drive’s DC bus voltage to rise, leading to over-voltage faults if the generated energy is not dissipated. There are a few basic ways to deal with the energy generated by a motor.
First, the drive itself can absorb some of this energy for a small amount of time. This is typical when overhauling loads aren’t present and a fast deceleration is not required. If the energy generated is too great for the drive alone, then a braking resistor can be introduced. The braking resistor will dissipate the excess energy by converting it to heat across a resistor element.
Finally, if the regenerated energy from the motor is continuous, using a regen unit rather than a braking resistor may be beneficial. This still protects the VFD from hardware damage and nuisance faults, allowing the user to capture and reuse the energy rather than dissipate it.
Types of VFD Parts Include
LCD Panel don’t just look different from bulky CRT (Cathode Ray Tube) monitors, the way they operate is significantly different as well. Instead of firing electrons at a glass screen, an LCD has a backlight that provides light source to individual pixels arranged in a rectangular grid.
LED Digital Panel
Keyboard atmosphere double row LED display area, running status indicator area and keyboard operation area, keyboard bin needs to be installed outside the keyboard, the external lead is network cable.
Braking unit, the full name of "frequency converter exclusive energy consumption braking unit", or "frequency converter exclusive energy feedback unit", is mainly used to control the mechanical load is relatively heavy, braking speed requirements are very fast occasions.
Feedback Unit
Feedback unit is a kind of special brake unit of frequency converter. It is mainly used in variable frequency speed control system with large inertia and drive.
Braking unit, the full identify of "frequency converter distinctive power consumption braking unit", or "frequency converter one-of-a-kind power comments unit", is usually used to manage the mechanical load is incredibly heavy.
Installing Braking Resistance For VFD
The surfaces of the braking resistors will reach temperatures of up to 250 °C when the braking resistors are loaded with the nominal power. The installation location of the braking resistor must be designed according to the high temperatures. For this reason, the braking resistors are usually mounted outside the control cabinet. Non-permissible installation might lead to heat build-up in the braking resistor due to reduced convection. A tripping temperature contact or an overheated braking resistor can lead to a system standstill.
The following minimum clearances must be observed for convection cooling depending on the continuous braking power and the mounting position.
VFD (Variable-frequency Drive) should not be installed on vibrating equipment, because the connecting screws of the main circuit in the VFD (Variable-frequency Drive) are easy to loosen, and many VFD (Variable-frequency Drive) are due to this reason. damage.
Wiring problem: VFD (Variable-frequency Drive) input terminal is best connected with an air starter protection current, and the value should not be too large, so as to prevent serious burning in the event of a short circuit. The "N" terminal must not be grounded. The control line should not be too long. Because this will make the control board vulnerable to electromagnetic wave interference and cause malfunction, it will also cause damage to the control board, it is best to use shielded wires longer than 2 meters. Do not install a contactor with a large current and frequent action next to the VFD (Variable-frequency Drive), because it interferes very much with the VFD (Variable-frequency Drive), and often causes the VFD (Variable-frequency Drive) to malfunction (display various Fault).
If the VFD (Variable-frequency Drive) often runs at a low speed below 15HZ, the motor should be equipped with a cooling fan!
Dust and humidity are the deadliest killers of VFD (Variable-frequency Drive). It is best to install VFD (Variable-frequency Drive) in an air-conditioned room, or in an electric cabinet with a dust filter, and regularly clean the dust on the circuit board and radiator; VFD (Variable-frequency Drive) that has been shut down for a period of time Drive) It is best to blow the circuit board with a hair dryer before powering on.
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FAQ
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LCD Panel, LED Digital Panel, vfd displays