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- ATV320U04M2B
- Variable Speed Drive
- France
- 45 x 325 x 245 mm
- 2.4 kg
- Xiamen, China
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Product Overview
The Schneider Electric ATV320U04M2B Variable Speed Drive is a compact Altivar Machine ATV320 variable frequency drive designed for industrial machinery, OEM equipment, and automated motor-control applications. It provides adjustable speed and torque control for small three-phase AC motors while combining compact cabinet installation with advanced motor-control and machine-safety functions.
The ATV320U04M2B is rated for 0.37 kW (0.5 HP) heavy-duty motor applications and uses a 200–240 V AC single-phase power supply. The drive provides a three-phase output for compatible motors and supports both asynchronous and synchronous motor-control applications.
As part of the ATV320 family, the ATV320U04M2B is intended for machine applications where accurate speed regulation, controlled acceleration and deceleration, communication capability, and reliable motor protection are required. Its Book format allows the drive to be installed efficiently in control cabinets, particularly where a narrow vertical installation footprint is preferred.
The specified dimensions are 45 × 325 × 245 mm, while the product weight is approximately 2.4 kg. The compact vertical design allows machine builders to save valuable control-panel space while still incorporating advanced variable speed control into their equipment.
The ATV320U04M2B can be used in conveyors, packaging equipment, feeders, pumps, fans, material-handling machines, textile machinery, and other compact industrial systems.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Product Series | Altivar Machine ATV320 |
| Model | ATV320U04M2B |
| Product Type | Variable Speed Drive |
| Drive Format | Book |
| Rated Motor Power | 0.37 kW (0.5 HP) |
| Duty Rating | Heavy Duty |
| Rated Supply Voltage | 200–240 V AC |
| Input Supply | Single-phase |
| Motor Output | Three-phase AC |
| Supply Frequency | 50–60 Hz |
| Nominal Output Current | 3.3 A |
| Maximum Transient Current | 5.0 A for 60 seconds |
| Motor Compatibility | Asynchronous and Synchronous Motors |
| Control Technology | Sensorless Flux Vector Control, V/F Control |
| Maximum Output Frequency | 599 Hz |
| Integrated EMC Filter | Class C2 |
| Protection Rating | IP20 |
| Cooling Method | Fan-cooled |
| Integrated Brake Chopper | Yes |
| Communication | Modbus Serial, CANopen |
| Safety Functions | STO, SS1, SLS |
| Mounting | Cabinet Mount |
| Installation Position | Vertical ±10° |
| Dimensions | 45 × 325 × 245 mm |
| Weight | 2.4 kg |
| Typical Application | Industrial Machinery and OEM Automation |
Function and Working Principle
The main function of the ATV320U04M2B is to control the speed and torque of a connected AC motor by varying the frequency and voltage supplied to the motor.
The basic power-conversion process can be represented as:
Single-Phase AC Input → Rectifier → DC Bus → Inverter → Variable-Frequency Three-Phase Output → Motor
The incoming AC power is first converted into DC power inside the drive. The inverter section then generates a controlled three-phase output for the motor.
By adjusting output frequency and voltage, the drive allows the motor to operate at different speeds instead of being limited to the fixed frequency of the electrical supply.
The drive can provide:
- Adjustable motor speed
- Controlled acceleration
- Controlled deceleration
- Improved low-speed torque
- Motor current monitoring
- Electronic motor protection
- DC injection braking
- Dynamic braking support
- Fault detection
- Communication-based control
- Energy-efficient motor operation
The sensorless flux vector-control function can improve motor torque and speed performance, particularly in applications where stable low-speed operation is important.
Role in Industrial Control Systems
The ATV320U04M2B acts as the motor-control interface between an industrial automation controller and a small AC motor.
A typical machine-control architecture may include:
- PLC Controller
- HMI
- ATV320 Variable Speed Drive
- Three-Phase AC Motor
- Proximity Sensors
- Limit Switches
- Safety Devices
- Circuit Protection
- Industrial Communication Network
The PLC can provide start/stop commands and speed references to the drive. The ATV320U04M2B then converts these commands into the appropriate electrical output for the motor.
At the same time, the drive can return operating information to the control system, such as:
- Motor frequency
- Motor current
- Drive status
- Alarm conditions
- Fault information
- Operating state
- Speed reference
- Diagnostic information
This division of responsibilities allows the PLC to manage machine logic while the drive manages motor power and speed control.
For OEM machine builders, this architecture provides a flexible method of standardizing motor-control functions across different machine models.
Industrial Applications
The ATV320U04M2B is designed for a broad range of compact industrial machinery.
Conveyor Systems
The drive can control small conveyor motors used in production lines, packaging equipment, material handling, and automated transfer systems.
Variable speed control allows the conveyor speed to be adjusted according to production requirements, while controlled acceleration and deceleration can reduce mechanical shock.
Packaging Machinery
Packaging machines often require controlled motor speeds for feeding, positioning, indexing, sealing, labeling, and conveying.
The ATV320U04M2B can provide adjustable motor operation for these applications.
Pumps
Small industrial pumps can benefit from variable speed control because motor speed can be adjusted according to actual process requirements.
This can help reduce unnecessary motor operation at maximum speed and improve overall system efficiency.
Fans and Ventilation Equipment
The drive can regulate small fan motors according to ventilation requirements, making it suitable for automated cooling and air-handling systems.
Material Handling Equipment
The ATV320U04M2B can be integrated into feeders, rollers, transfer mechanisms, and other compact material-handling equipment requiring controlled motor speed.
Textile Machinery
Small textile machines can use variable speed control for winding, feeding, material movement, and other processes requiring stable motor operation.
OEM Machinery
The narrow Book-format design is particularly useful for machine builders that need to install variable speed drives inside compact electrical cabinets.
Installation and System Integration
Proper installation is essential for reliable operation and long service life.
Before installation, engineers should verify:
- Input voltage
- Input phase configuration
- Motor rated voltage
- Motor rated current
- Motor power
- Motor frequency
- Grounding
- Cable specifications
- Protective devices
- Cabinet ventilation
- EMC requirements
- Communication configuration
The ATV320U04M2B is designed for 200–240 V single-phase input. The electrical supply should therefore be correctly matched to the model before commissioning.
Typical Installation Procedure
- Disconnect and isolate the incoming power supply.
- Confirm that the electrical system is fully de-energized.
- Mount the drive securely inside the control cabinet.
- Install the drive in the recommended vertical position.
- Provide appropriate ventilation clearance.
- Connect the single-phase AC input.
- Connect the three-phase motor output.
- Connect protective grounding.
- Connect digital and analog control wiring.
- Connect Modbus or CANopen communication if required.
- Enter the motor nameplate information.
- Select the appropriate motor-control mode.
- Configure acceleration and deceleration ramps.
- Configure motor-protection parameters.
- Perform motor auto-tuning when required.
- Check the motor rotation direction.
- Perform a low-speed test.
- Verify alarms and communication.
- Complete full machine commissioning.
Correct cable routing, grounding, and EMC practices should be maintained to minimize electrical interference and improve system stability.
Communication and Control Integration
The ATV320U04M2B can be integrated into automation systems through its supported communication architecture.
Modbus serial communication can be used to exchange operating commands and drive information with compatible controllers and supervisory devices.
CANopen can be used for distributed machine-control applications where multiple automation devices need to communicate over a common network.
Typical communication functions include:
- Start and stop commands
- Speed reference
- Frequency monitoring
- Motor current monitoring
- Drive status
- Fault monitoring
- Alarm information
- Parameter access
- Diagnostic information
Additional communication modules can be selected for certain industrial network architectures when required by the machine design.
Compatible System Components
The ATV320U04M2B can be integrated with a variety of industrial automation components.
| Component | Function |
|---|---|
| Schneider Modicon PLC | Machine logic and process control |
| HMI | Operator monitoring and control |
| Three-Phase AC Motor | Mechanical power generation |
| SoMove Software | Drive configuration and diagnostics |
| EcoStruxure Machine Expert | Machine automation engineering |
| Modbus Devices | Serial industrial communication |
| CANopen Devices | Distributed machine control |
| Braking Resistor | Dynamic braking |
| Line Choke | Input-side power conditioning |
| Motor Choke | Motor-side protection |
| EMC Components | Electromagnetic interference management |
| Circuit Breaker | Electrical protection |
| Safety Relay | Machine safety integration |
| Proximity Sensors | Position and object detection |
| Limit Switches | Mechanical position monitoring |
The actual selection of accessories should be based on the motor rating, braking requirements, electrical installation, environmental conditions, and machine safety design.
Recommended Alternative Models
When selecting an alternative ATV320 drive, engineers should compare motor power, input voltage, supply phase, physical format, communication requirements, and installation space.
| Model | Type | Key Feature | Typical Application |
|---|---|---|---|
| ATV320U02M2B | Variable Speed Drive | 0.18 kW, 200–240 V, 1-phase | Small OEM Machinery |
| ATV320U04M2B | Variable Speed Drive | 0.37 kW, 200–240 V, 1-phase | Compact Industrial Machines |
| ATV320U06M2B | Variable Speed Drive | 0.55 kW, 200–240 V, 1-phase | Small Pumps and Conveyors |
| ATV320U07M2B | Variable Speed Drive | 0.75 kW, 200–240 V, 1-phase | Fans, Pumps and Conveyors |
| ATV320U11M2B | Variable Speed Drive | 1.1 kW, 200–240 V, 1-phase | Medium Machine Applications |
| ATV320U15M2B | Variable Speed Drive | 1.5 kW, 200–240 V, 1-phase | Industrial Automation Equipment |
The ATV320U02M2B is a lower-power alternative, while the ATV320U06M2B and ATV320U07M2B provide higher motor-power capacity within the same general 200–240 V single-phase ATV320 family.
For replacement applications, the complete electrical and mechanical specifications should always be checked rather than selecting a drive based only on motor power.
Key Advantages
- Compact Book-format construction
- 0.37 kW (0.5 HP) heavy-duty motor rating
- 200–240 V AC single-phase input
- Three-phase AC motor output
- Narrow 45 mm width
- 325 mm height
- 245 mm depth
- Approximate weight of 2.4 kg
- Sensorless flux vector control
- Supports asynchronous motors
- Supports synchronous motors
- Integrated Class C2 EMC filter
- Integrated brake chopper
- Modbus serial communication
- CANopen communication
- STO safety function
- SS1 safety function
- SLS safety function
- IP20 protection
- Suitable for cabinet installation
- Designed for OEM machinery
- Supports advanced motor diagnostics
- Suitable for continuous industrial automation applications
Technical FAQs
What is the Schneider ATV320U04M2B?
The ATV320U04M2B is a 0.37 kW Altivar Machine ATV320 Variable Speed Drive designed for controlling small AC motors in industrial machinery and OEM automation systems.
What motor power does the ATV320U04M2B support?
The drive has a 0.37 kW (0.5 HP) heavy-duty motor rating.
What input voltage does it use?
The ATV320U04M2B is designed for a 200–240 V AC single-phase power supply.
What is the nominal output current?
The nominal continuous output current is approximately 3.3 A under the specified heavy-duty rating.
What is the maximum transient current?
The drive can provide approximately 5.0 A for 60 seconds under the specified operating conditions.
What are the dimensions?
The specified dimensions are 45 × 325 × 245 mm.
How much does the ATV320U04M2B weigh?
The product weight is approximately 2.4 kg.
Does the ATV320U04M2B support asynchronous motors?
Yes. The drive supports asynchronous motor control, including sensorless flux vector control.
Does it support synchronous motors?
Yes. The ATV320 platform supports compatible synchronous motor applications.
Does the drive include an EMC filter?
Yes. The ATV320U04M2B includes an integrated Class C2 EMC filter.
Does it have a brake chopper?
Yes. The drive includes an integrated brake chopper for compatible dynamic-braking applications.
Which communication protocols are supported?
The drive supports Modbus serial communication and CANopen, with additional communication options available depending on the system configuration.
What safety functions are available?
The drive supports machine-safety functions including Safe Torque Off (STO), Safe Stop 1 (SS1), and Safely Limited Speed (SLS).
Where is the ATV320U04M2B commonly used?
Typical applications include packaging machines, conveyors, feeders, pumps, fans, textile equipment, material-handling systems, and compact OEM machinery.
What is the difference between ATV320U04M2B and ATV320U04M2C?
Both models belong to the ATV320 family and are designed for 0.37 kW applications, but the U04M2B is the Book-format version, while the U04M2C uses the Compact format. Their physical installation requirements and dimensions are therefore different.
Conclusion
The Schneider Electric ATV320U04M2B Variable Speed Drive is a compact 0.37 kW AC drive designed for OEM machinery and industrial automation applications requiring reliable variable speed motor control.
With a 200–240 V AC single-phase input, three-phase motor output, sensorless flux vector control, integrated EMC filtering, brake-chopping capability, and machine-oriented safety functions, the ATV320U04M2B provides considerably more functionality than a basic frequency converter.
Its 45 × 325 × 245 mm Book-format construction and approximately 2.4 kg weight make it particularly suitable for control cabinets where a narrow vertical installation footprint is preferred. Modbus communication, CANopen capability, and compatibility with Schneider automation tools further simplify its integration into modern machine-control architectures.
For OEM machine manufacturers, system integrators, and industrial maintenance engineers, the ATV320U04M2B is a practical solution for small conveyors, packaging equipment, pumps, fans, feeders, textile machinery, and other automated equipment requiring dependable and adjustable motor control.