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- ATV31HD15N4A
- Frequency Converter
- France
- 290 × 130 × 55 mm
- 11 kg
- Xiamen, China
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Product Overview
The Schneider ATV31HD15N4A is a variable frequency drive (VFD) from the Altivar 31 series, designed to control the speed and torque of three-phase asynchronous AC motors. It converts fixed-frequency AC power into a variable frequency and variable voltage output, enabling precise motor speed regulation and improved energy efficiency.
This drive is widely used in standard industrial applications such as pumps, fans, conveyors, and simple machinery systems.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Series | Altivar 31 |
| Model | ATV31HD15N4A |
| Product Type | Frequency Converter / VFD |
| Rated Power | 15 kW |
| Supply Voltage | 380–500 V AC, 3-phase |
| Output Frequency | Variable (typical industrial range) |
| Control Method | Sensorless vector / V/F control |
| EMC Filter | Integrated |
| Protection Class | IP20 |
| Cooling Method | Forced air cooling |
| Mounting Type | Panel mounted |
| Dimensions | 290 × 130 × 55 mm |
| Weight | 11 kg |
Function and Working Principle
The ATV31HD15N4A regulates motor speed by adjusting both frequency and voltage supplied to the motor.
Working Process
- AC power is rectified into DC inside the drive
- DC is converted into a controlled AC output using IGBT switching
- Output frequency is adjusted according to speed demand
- Motor speed and torque are precisely controlled
Key Principle
Motor Speed ∝ Output Frequency
Role in Industrial Systems
The ATV31HD15N4A is used as a motor speed control device in automation systems. It replaces traditional direct-on-line or mechanical speed control methods, enabling:
- Energy-efficient motor operation
- Smooth acceleration and deceleration
- Process optimization
- Reduced mechanical stress on equipment
Industrial Applications
- Pumps and pumping systems
- HVAC systems (fans and blowers)
- Conveyor systems
- Packaging machines
- Mixers and agitators
- Small to medium industrial machinery
- Water treatment systems
- General automation equipment
Installation Notes
- Installed in electrical control cabinets
- Requires proper ventilation and heat dissipation
- Must be protected with circuit breakers or fuses
- Shielded motor cables recommended to reduce EMI
- Proper grounding is essential for stable operation
- Parameter setup required during commissioning
Compatible Systems
- Three-phase asynchronous AC motors
- Industrial PLC systems (Schneider Modicon, etc.)
- Motor protection devices
- Control panels and MCC systems
- Analog and digital control interfaces
Alternative Models
| Model | Description |
|---|---|
| ATV12 Series | Lower power, compact VFDs |
| ATV312 Series | Enhanced performance version |
| ATV320 Series | Modern compact drive replacement |
| ATV312HD15N4A | Similar power class variant |
| ATV31HD11N4A | Lower power 11 kW version |
Key Advantages
- Precise motor speed control
- Energy savings in variable load systems
- Reduced mechanical wear and tear
- Integrated EMC filtering
- Stable operation for standard industrial loads
- Easy integration into automation systems
FAQ
Q: What is the ATV31HD15N4A used for?
It is used to control the speed of three-phase AC motors in industrial applications.
Q: Is it a soft starter?
No, it is a frequency converter (VFD), which controls both frequency and voltage.
Q: What types of motors are supported?
It is designed for standard three-phase asynchronous induction motors.
Q: Is it suitable for heavy-duty applications?
It is mainly intended for standard or light-to-medium industrial loads.
Conclusion
The Schneider ATV31HD15N4A Frequency Converter is a reliable and widely used VFD for controlling AC motor speed in industrial automation systems. It provides efficient energy usage, smooth motor operation, and flexible control for a wide range of standard applications.