3 phase 22KW injection molding machine inverter good quality dc ac inverter for elevator

What is a VFD?

A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. Other names for a VFD are variable speed drive, adjustable speed drive, adjustable frequency drive, AC drive, microdrive, and inverter.

  Frequency (or hertz) is directly related to the motor’s speed (RPMs). In other words, the faster the frequency, the faster the RPMs go. If an application does not require an electric motor to run at full speed, the VFD can be used to ramp down the frequency and voltage to meet the requirements of the electric motor’s load. As the application’s motor speed requirements change, the VFD can simply turn up or down the motor speed to meet the speed requirement.

What's a VFD consist of?

Generally, variable frequency drive contains two components: rectifier and inverter. The rectifier converts incoming AC power to DC power, then the inverter converts DC power to the desired frequency AC power. In addition to these two parts, variable frequency drive may also contain transformer and battery. Wherein the transformer changes the voltage and isolates input/output circuit, the battery compensates energy loss inside the VFD drive circuit.

How does a VFD work?

A VFD receives the AC power supply from the AC mains source and outputs a modulated power signal to the NovaTorque motor in a wave pattern known as Pulse Width Modulation (PWM). This power signal provides both speed control and electronic commutation.

Why should I use a VFD?

Reduce Energy Consumption and Energy Costs

If you have an application that does not need to be run at full speed, then you can cut down energy costs by controlling the motor with a variable frequency drive, which is one of the benefits of Variable Frequency Drives. VFDs allow you to match the speed of the motor-driven equipment to the load requirement. There is no other method of AC electric motor control that allows you to accomplish this.

Electric motor systems are responsible for more than 65% of the power consumption in industry today. Optimizing motor control systems by installing or upgrading to VFDs can reduce energy consumption in your facility by as much as 70%. Additionally, the utilization of VFDs improves product quality, and reduces production costs. Combining energy efficiency tax incentives, and utility rebates, returns on investment for VFD installations can be as little as 6 months.

Increase Production Through Tighter Process Control

By operating your motors at the most efficient speed for your application, fewer mistakes will occur, and thus, production levels will increase, which earns your company higher revenues. On conveyors and belts you eliminate jerks on start-up allowing high through put.

Extend Equipment Life and Reduce Maintenance

Your equipment will last longer and will have less downtime due to maintenance when it’s controlled by VFDs ensuring optimal motor application speed. Because of the VFDs optimal control of the motor’s frequency and voltage, the VFD will offer better protection for your motor from issues such as electro thermal overloads, phase protection, under voltage, overvoltage, etc.. When you start a load with a VFD you will not subject the motor or driven load to the “instant shock” of across the line starting, but can start smoothly, thereby eliminating belt, gear and bearing wear. It also is an excellent way to reduce and/or eliminate water hammer since we can have smooth acceleration and deceleration cycles.

The input frequency of variable frequency drive is 50Hz  or 60Hz?

Rated input frequency of variable frequency drive is 50Hz.Almost input frequency of variable frequency drive which made in China is 50Hz. 

Can this variable frequency drive make AC input,DC output come ture?

The current chage method is AC-DC-AC that means the input is AC and output is also AC.

Can thia variable freuqency drive step up or step down the voltage?

The input voltage is 220V+/-20% or 380V+/-20%,and the output voltage is 0-220V or 0-380V.If you want setp up or step down the voltage,you can buy a voltage transformer and matched with our products to change this voltage.

Lead Time                                                                                                                                                           

1.Sample order will be delivered from our factory within 1-7 working days.

2.General orders will be delivered from our factory within 7-10 working days.

3.Big orders will delivered from our factory within 30 working days at most.

Maintenance                                                                                                                                                      

Daily Caring and Maintenance

The changes of inverter using environment, such as the influences of temperature, humidity and smog, and aging and other factors of inverter internal component may lead to various faults of inverter. Therefore, in storage and using process, it must take daily inspection and regular maintenance for the inverter.

Daily Maintenance

When the inverter is started normally, please confirm the following items:

(1) Whether the motor has abnormal noise and vibration

(2) Whether the inverter and motor has abnormal heat radiation

(3)Whether the environment temperature is too high

(4)Whether the load current value is the same with past values

(5)Whether the cooling fan of inverter is in normal operation

 Regular Caring and Maintenance

1 Regular Maintenance

When the inverter is taken regular maintenance and inspection, it must cut off the power. After the monitor has no display and the indicators of main circuit power are off, it can take inspection. The inspection contents are as in Table 1.

Regular Caring

To make the inverter operate normally for a long period, it must take caring and maintenance for the service life of internal electronic components of inverter. The service life of internal electronic components of inverter is varied due to different using environment and using conditions, as in Table 8-2. Caring period of inverter is provided only for reference.

Using conditions of above replacement time for inverter are:

(1)Environment temperature: annual average 30℃

(2)Load coefficient: below 80%

(3) Running time: less than 12 hours per day

Inverter Guarantee

For the following conditions, our company will provide guarantee service:

(1)Guarantee range only refers the inverter body.

(2) Under normal using condition, our company is responsible for the guarantee when the inverter appears fault or damages within 12months. Our company be collect reasonable maintenance fee if it is more than 12 months.

(3) It shall also collect certain maintenance fees within 12 months for the following conditions:

•Operate the machine no in accordance with the operation manual, which leads to damage of inverter

•Inverter damages are caused by water, fire and abnormal voltage etc.

•Inverter damages are caused by wrong wiring and so on.

•Damage is caused by using inverter in abnormal function.

(4)Related service charges will be calculated according actual cost. If there is contract, it is processed according to the principle of contract with priority.

    Established in 2004, Shen Zhen Aimika Electric Co., Ltd has won the recognition of industrial areas with international herald technology research and development, production, service system and strict quality management system. Our offices and customers are throughout all over the country at all level of the county town. And more than twenty countries appointed us to provide with inverter.

    We are always adhering to the concept of “quality of science and technology, environmental protection and energy saving”, always follow the market demand oriented, technology to create inverter pioneer. Company independent research and development of the frequency converter has been introduced into the mechanical, textile, chemical industry, metallurgy, mining, pharmaceutical, ceramics, papermaking, oil fields, plastics, printing, thermoelectric, food and other fields, making a breakthrough contribution to the industry technology.

    Quality and technology research and development is the foundation of Aimika’s development. We has a skilled inverter R&D team and strictly in accordance with the national standard procedural execution in product design, technology research and development, production safety, product installation and after-sales service process, and passed the ISO9001 quality management system certification, the international CE certification and Aimika science and technology research and development certification, making Aimika inverter has comprehensive scientific quality and safety guarantee in production. The company has independently developed the G series, P series and S series of leading technology and perfect function of high-end inverter.  Our excellent quality and service has won the customers recognition.

    We commit to reach “brand, price, service” by one stop and provide consumers with high-quality goods. Now we diversified our channels agents, online shopping, distribution and marketing service mode to realize the full offered to global customers with more perfect technical support and convenient after-sales service.  

   Our mission statement: to build brand by quality and make development by reputation!