The benefits of using variable frequency drives

Motors used to power a variety of applications can provide you with uniform speeds. It does not matter what type of application you are using; these motors will serve your purpose. If you use AC motors, using variable frequency drives will save you a lot of money. With this device, you can control the speed of the motor as needed. In addition, it will increase the smoothness and efficiency of the process as the application will run according to your needs. Here we will mention all the benefits that a VFD must provide.

The benefits of a VFD

1. You can control the starting current: If you have an AC motor running at full speed, you will need eight times the current to start the motor and the load. However, if you have a variable frequency drive, you will control the start-up speed. Specifically, you will need a lower starting current compared to conventional time. For all mechanisms that use this feature, you must monitor them. The speed controller you use should meet the standards. It will be best if you do not compromise the quality of the variable frequency drive.

2. It will reduce your energy costs: Now, this is an important benefit that you will encounter with a variable frequency drive. We have already mentioned that the tool allows you to control the speed as needed. Instead of a uniform or arbitrary rate, you can provide precise control over the speed. Numerous studies have shown that variable frequency drives will help you save nearly 70% of your energy costs. In addition, it will help you get rid of multiple additional mechanical components. With a variable frequency drive, you can save a lot of space and save some maintenance costs.

3. You will get proper electrical control: One of the best parts of using a variable frequency drive is that it will provide you with proper electrical control. You can control the speed according to the needs of your application. For example, you can increase and decrease the speed of the motor. In addition, you can maintain momentum and stop when needed. To be precise, it will improve the efficiency of your application.

4. It will increase efficiency: VFD (Variable Frequency Drive) will not consume more power than required. Therefore, it will help you save some energy compared to soft starters and contractors.

5. You will enjoy regenerative energy: Lowering the hoist and deceleration is what generates the regenerative energy that the motor is producing. You can use a braking resistor to convert this energy into heat. Afterwards, you can send it back to the source, which will ensure energy savings. The AC regenerative drive will be responsible for the redistribution of energy. If there is no inverter drive in the application, then this energy will be wasted.

6. Lifter life will increase: Some variable frequency drives will provide you with overcurrent and thermal overload protection. It will increase the lifespan of the hoist motor. In addition, it uses ramp down to stop braking instead of using brake shoes to slow down the speed. The sole purpose of the brake is to stop or halt the hoist in case of emergency. This will extend the life of the brake.

7. Controlled stops will be easier: Sometimes your load may be ruined by mechanical damage and broken by sudden shocks and interruptions. In these times, the variable frequency drive will help you to stay away from these problems. In this way, you can protect yourself from untimely influences that cause unnecessary product loss. Otherwise, it will damage your products or other mechanical tools.

8. You can modify the speed: With a variable frequency drive, you can maximize the number of applications. In addition to this, you can change the process at any time. You can also make some adjustments according to the needs of the application, for example

You can start at a lower speed if you wish. To be precise, you don't have to be limited to a specific rate. 

You can control the speed with the help of remote control for remote operation.

9. You can adjust the torque limit: Throughout the process, you can precisely control the torque limit with the help of a variable frequency drive. In this way, you can protect your product and machine. Otherwise, the motor may exceed its threshold value. For machines and tools, you only need a moderate amount of rotational power, which can be achieved with the help of a variable frequency drive. It will therefore play a key role in saving energy by suppressing the excess power needed to achieve overspeed. It will allow you to waste some energy.

Built-in safety features

Crane specific VFDs have various safety features that are best suited for type lifting applications. Therefore, the built-in features you will get in the crane-specific VFD are

◭ It will check the integrity of the brakes at the beginning and end of each lift: this is one of the important features you will get in the crane-specific VFD. This feature is designed to prevent the load from falling to the ground due to a brake failure. If the VFD detects a brake failure or slippage, it will hold the load electrically. In addition, it alerts the operator so that he or she can take the required steps as soon as possible.

◭ Avoid unsafe crane use: The crane-specific VFD is able to monitor the operator's behavior. Therefore, all measures will be taken to avoid unsafe crane use. For example, you can set the travel limit of the crane to avoid any unnecessary collisions. Otherwise, it may collide with hooks or walls. It also has anti-vibration function. It will protect the crane from the operator's shock load. In addition, it has a slack cable that will protect the crane from excessive unraveling of the rope. Without the load cell, you will have a hard time understanding if the load exceeds its limits.

◭ It checks the electrical integrity of the entire loading application. : The performance and health of the power supply and motor are some of the important parts of the loading application. Well, a crane-specific VFD will monitor the health of the motor and power supply. the VFD (variable frequency drive) knows its limits, so it will avoid overheating and overloading. If the line power drops, goes out of phase or creates too much ripple, the VFD will stop.

Therefore, you can understand that a variable frequency drive is an essential tool. It will help you to enjoy numerous benefits and thus increase your application frequency. In addition, you will end up saving a lot of power. However, you have to be precise when choosing the right VFD (variable frequency drive) for your crane. There are two types of variable frequency drives. The first is a crane-specific VFD, and the second is a general-purpose VFD, of which you must choose the one that best suits your crane.

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