MIMY offers a range of Variable Frequency Drives (VFDs) catering to different applications. Their product lineup includes the following:
- Standard Frequency Inverter (VFD): This category includes various series like the CDI-E100, CDI-EM60, CDI-E102, CDI-E180, and CDI-EC10. Each of these series caters to specific needs, from general-purpose low-power inverters to high-performance vector control inverters. These VFDs are suitable for a variety of applications such as electric power, textile and chemical fiber, building materials, oil industry, chemical industry, metallurgy, municipal facilities, paper-making, food & beverage, and tobacco.
- CDI-E180 Series High-Performance VFD: This is a stable and versatile high-performance vector control inverter that offers excellent speed control precision, torque response speed, and low-frequency output torque. It is widely used in industries with demanding requirements for speed control. The CDI-E180 series comes with a range of rated capacities, input and output currents, and matchable motor specifications, suitable for different setups and requirements.
- General VFD Series: These are high-performance vector control inverters with V/F control, close-up vector control, and stable performance. They are designed for high-speed control precision, quick torque response, and high control precision, enhancing the operating efficiency of motors. The inverters come with built-in function modules equivalent to a small PLC, reducing customer costs. They are applicable in various sectors including electric power, textile and fiber, building materials, petroleum, chemical, metallurgy, municipal administration, paper making, food, and beverage.
Key Features and Benefits of VFDs:
Vector Control Technology: VFDs use advanced vector control algorithms that ensure high starting torque, quick torque response, and precise control, significantly enhancing motor performance and efficiency.
Versatility and Wide Application: The drives are adaptable for various industrial applications, including electric power, textile, building materials, and food processing industries, demonstrating their capability to meet a wide range of operational demands.
Cost-Effectiveness: With built-in function modules equivalent to a small PLC, VFDs offer powerful functions that reduce the overall cost for users. These integrated features allow for streamlined operations without the need for additional components.
Ease of Use: The VFDs are designed with user-friendly interfaces, making it easier for operators to switch between different machine models and use them flexibly. This ease of use extends to installation, programming, and maintenance.
Flexible Model Selection: The provides options for standard built-in braking units, external braking units, and optional DC reactors, allowing users to choose the most appropriate model based on their specific power and operational requirements.
Improved Efficiency and Productivity: By optimizing motor speed and power consumption, VFDs contribute to enhanced process control, reduced energy costs, and increased productivity in industrial operations.
STEPPER MOTOR :
A stepper motor is a type of DC motor that moves in discrete steps. It contains multiple coils, arranged in groups known as "phases", which are activated in a sequential pattern to rotate the motor step by step. This allows for very precise control of the motor's position and speed, which is why stepper motors are commonly used in applications requiring exact movements like 3D printers, CNC machines, and camera platforms.
Stepper motors have several unique characteristics:
• Pull-in Torque: This is the torque at which the motor can start or stop instantly without losing steps when operated at a fixed frequency without acceleration.
• Pull-out Torque: This measures the motor's maximum load-carrying capacity at various speeds without losing steps.
• Detent Torque: Also known as cogging, this is the motor's holding torque when it is not powered.
• Resonance Issues: Stepper motors can experience undesirable vibrations or ringing due to their natural frequencies. This can lead to missed steps or stalling if not properly managed.
• Ratings and Specifications: Stepper motors are usually characterized by their winding currents, but modern drivers are current-limiting, and actual drive voltages can exceed rated motor voltages.
They offer high torque at startup and low speeds and can be easily controlled in open-loop systems without feedback. However, they tend to have lower efficiency and reduced torque at higher speeds. The performance of stepper motors, including their speed and the precision of their steps, is significantly influenced by their construction and the driving voltage and current.
