Product Overview

The Schneider Electric ATV320U15M3C Variable Speed Drive is an Altivar Machine ATV320 frequency inverter designed to provide variable speed and torque control for three-phase AC motors used in industrial machinery, OEM equipment, and automated production systems.

This model is designed for a 200–240 V AC three-phase power supply and provides a 1.5 kW (2 HP) motor power rating. It converts incoming fixed-frequency AC power into a controlled variable-frequency output, allowing the motor to operate at adjustable speeds while maintaining controlled acceleration, deceleration, and torque performance.

The ATV320U15M3C uses the Compact-format enclosure of the ATV320 family. Its specified dimensions are 105 × 143 × 138 mm, with an approximate weight of 1.4 kg. This compact form factor allows the drive to be installed efficiently in industrial control cabinets and machine panels.

The drive is designed for applications that require more than simple motor starting and stopping. It supports adjustable speed control, torque management, motor protection, dynamic braking, industrial communication, and machine-oriented safety functions.

Typical applications include conveyors, packaging machinery, material-handling equipment, feeders, pumps, fans, textile machines, mechanical actuators, and OEM automation systems.

Technical Specifications

Function and Working Principle

The primary purpose of the ATV320U15M3C is to regulate the speed and torque of a compatible three-phase AC motor.

The drive receives 200–240 V three-phase AC power and converts it into a controlled variable-frequency three-phase output.

The basic conversion process is:

Three-Phase AC Input → Rectifier → DC Link → Inverter → Variable-Frequency Three-Phase Output → Motor

The input AC voltage is first rectified into DC power. The DC link acts as an intermediate energy stage, while the inverter converts the DC power into a controlled three-phase waveform.

By changing output frequency and voltage, the drive regulates motor speed. It also monitors current and other operating parameters to maintain appropriate motor operation.

The ATV320U15M3C can provide:

• Adjustable motor speed
• Controlled acceleration
• Controlled deceleration
• Soft starting
• Controlled stopping
• Torque management
• Low-speed motor operation
• Motor current monitoring
• Motor overload protection
• Dynamic braking
• Fault detection
• Warning monitoring
• Speed reference control
• PLC-based motor control

The ATV320 family supports sensorless flux vector control, providing improved torque and speed performance compared with basic V/F control in suitable applications.

This makes the drive suitable for machinery where the motor must operate reliably at different speeds and under changing loads.

Role in Industrial Control Systems

The ATV320U15M3C normally operates between the industrial power supply and the machine’s three-phase motor.

A typical automation architecture is:

PLC / Controller → ATV320U15M3C → Three-Phase AC Motor → Mechanical Load

The PLC handles machine logic, sequencing, sensor processing, and process coordination. The ATV320U15M3C handles the electrical control of the motor.

For example, a PLC may send a speed reference to the drive based on production requirements. The drive then adjusts its output frequency and voltage to produce the required motor speed.

The ATV320U15M3C can also provide information to the PLC or supervisory system.

Typical information includes:

• Motor frequency
• Motor current
• Speed reference
• Drive operating status
• Warning status
• Fault status
• Operating state
• Diagnostic information

This allows the drive to become an active component of the machine automation system.

When several motors are installed in the same machine, individual ATV320 drives can be controlled by a common PLC or industrial communication network. This allows different motors to operate independently while remaining coordinated with the overall production process.

Industrial Applications

Conveyor Systems

The ATV320U15M3C can control motors used in conveyor systems for manufacturing, assembly, packaging, and material handling.

Adjustable speed control allows conveyor speed to be synchronized with other machine sections.

Controlled acceleration and deceleration can also reduce mechanical stress on belts, rollers, couplings, and gearboxes.

Packaging Machinery

Packaging machines often require variable motor speeds for feeding, indexing, conveying, and product handling.

The ATV320U15M3C provides adjustable motor speed while allowing the PLC to control the overall machine sequence.

Material Handling

Material-handling equipment such as rollers, transfer systems, feeders, and mechanical transport systems can benefit from variable speed control.

The drive can adjust motor speed according to production requirements.

Pumps

The ATV320U15M3C can control compatible three-phase pump motors where variable flow or pressure is required.

Motor speed can be adjusted according to process demand.

Fans and Ventilation Systems

Industrial fans can operate at different speeds according to ventilation or cooling requirements.

Variable speed operation allows the motor to run according to actual process requirements rather than continuously at a fixed speed.

Textile Machinery

Textile equipment may require stable motor speed for winding, feeding, and material transportation.

The drive can provide adjustable speed and torque control for compatible textile applications.

Feeders

Variable speed control can be useful for feeding equipment where material flow needs to be adjusted according to production conditions.

OEM Machine Building

The Compact-format enclosure allows the ATV320U15M3C to be integrated into OEM machines and control cabinets where installation space is important.

It can operate alongside PLCs, HMIs, sensors, circuit protection devices, communication modules, and other automation components.

Installation and System Integration

Correct installation is important for safe and reliable operation.

Before installing the ATV320U15M3C, engineers should verify:

• Three-phase input voltage
• Motor rated voltage
• Motor rated current
• Motor rated power
• Motor frequency
• Protective grounding
• Circuit protection
• Motor cable size
• Control wiring
• Cabinet ventilation
• EMC requirements
• Communication requirements
• Braking requirements

The ATV320U15M3C is designed for a 200–240 V AC three-phase supply.

Typical Installation Procedure

1. Disconnect and isolate the incoming electrical supply.
2. Verify that hazardous voltage has been removed.
3. Mount the drive securely in the control cabinet.
4. Install the drive in the recommended vertical orientation.
5. Provide sufficient ventilation clearance.
6. Connect the three-phase AC input.
7. Connect the three-phase motor output.
8. Connect protective grounding.
9. Connect digital and analog control signals.
10. Connect communication wiring where required.
11. Enter the motor nameplate information.
12. Select the appropriate motor-control mode.
13. Configure acceleration and deceleration ramps.
14. Configure motor protection parameters.
15. Perform motor auto-tuning when applicable.
16. Verify motor rotation direction.
17. Perform a low-speed test.
18. Check drive status and diagnostic information.
19. Verify communication with the PLC or controller.
20. Test the complete machine under normal operating conditions.

The drive should be installed with adequate consideration for heat dissipation and cabinet airflow.

Grounding, shielding, cable separation, and EMC practices should also be considered during installation.

Where external EMC components or line reactors are required by the machine design, they should be selected according to the electrical characteristics of the installation.

Communication and Control Integration

The ATV320U15M3C provides communication functions for integration with industrial automation systems.

Standard communication capabilities include:

• Modbus Serial
• CANopen

Optional communication modules can provide additional industrial networking capabilities.

Depending on the selected option, the drive can be integrated into networks such as:

• PROFIBUS DP V1
• PROFINET
• EtherNet/IP
• EtherCAT
• DeviceNet
• Ethernet Powerlink
• CANopen

Communication enables the PLC to control and monitor the drive without relying entirely on hardwired signals.

Typical data exchanged between the controller and drive includes:

• Start commands
• Stop commands
• Speed references
• Frequency feedback
• Motor current
• Drive status
• Warning information
• Fault information
• Diagnostic information
• Parameter information

This makes the ATV320U15M3C suitable for coordinated automated machines.

For example, the PLC can send a speed command to the drive, monitor the actual operating status, detect a fault, and execute an appropriate machine-control sequence.

Compatible System Components

The ATV320U15M3C can work with various industrial automation and electrical components.

The correct accessories should be selected according to motor specifications, supply conditions, braking requirements, EMC environment, communication architecture, and machine safety requirements.

Recommended Alternative Models

The following ATV320 models can be considered for similar industrial motor-control applications.

The ATV320U11M3C is a suitable lower-power alternative when approximately 1.1 kW is sufficient.

The ATV320U18M3C or ATV320U22M3C can be considered for applications requiring greater motor capacity, provided that the electrical and mechanical requirements are compatible.

For a 200–240 V single-phase power supply, the ATV320U15M2B provides an alternative configuration within the same ATV320 family.

For a 380–500 V three-phase electrical system, the ATV320U15N4C may be more appropriate.

For replacement projects, engineers should compare motor current, voltage, overload rating, drive format, mounting dimensions, communication functions, EMC requirements, braking requirements, and safety functions rather than selecting a replacement based only on motor horsepower.

Key Advantages

• Altivar Machine ATV320 Compact format
• 1.5 kW (2 HP) motor rating
• 200–240 V AC three-phase input
• Three-phase motor output
• Approximately 7.1 A nominal output current
• 105 × 143 × 138 mm dimensions
• Approximately 1.4 kg weight
• Sensorless flux vector control
• V/F motor control
• Supports compatible asynchronous motors
• Supports suitable synchronous motor applications
• Output frequency up to approximately 599 Hz
• Adjustable switching frequency
• Integrated braking capability
• Modbus serial communication
• CANopen communication
• Optional industrial network integration
• IP20 protection
• Fan-cooled design
• Machine-oriented safety functions
• Suitable for OEM machinery
• Suitable for compact control cabinets
• Suitable for conveyors
• Suitable for packaging machinery
• Suitable for material-handling equipment
• Suitable for feeders
• Suitable for pumps and fans
• Suitable for textile machinery

Technical FAQs

What is the Schneider ATV320U15M3C?

The ATV320U15M3C is a 1.5 kW Altivar Machine ATV320 Variable Speed Drive designed to control compatible three-phase AC motors using a 200–240 V three-phase power supply.

What motor power does the ATV320U15M3C support?

The drive is designed for a 1.5 kW (2 HP) motor application.

What input voltage does it require?

The ATV320U15M3C is designed for a 200–240 V AC three-phase supply.

What is the nominal output current?

The nominal output current is approximately 7.1 A, depending on the applicable operating and duty conditions.

What are the dimensions?

The specified dimensions are 105 × 143 × 138 mm.

How much does the ATV320U15M3C weigh?

The approximate weight is 1.4 kg.

What type of motor can it control?

The ATV320 family supports compatible asynchronous motors and suitable synchronous motor applications.

Does it support sensorless vector control?

Yes. The ATV320U15M3C supports sensorless flux vector control, as well as V/F control modes.

Does it have a braking function?

Yes. The ATV320 platform provides an integrated brake chopper for compatible dynamic-braking applications.

Which communication protocols are supported?

Standard communication includes Modbus Serial and CANopen. Optional communication modules can provide additional networks such as PROFINET, EtherNet/IP, EtherCAT, PROFIBUS DP V1, and DeviceNet.

Can it communicate with a PLC?

Yes. The ATV320U15M3C can communicate with PLC systems for start/stop commands, speed references, drive monitoring, diagnostics, and coordinated machine operation.

What safety functions are available?

The ATV320 platform supports machine-safety functions including Safe Torque Off (STO) and other supported functions depending on the drive configuration and machine safety architecture.

Where is the ATV320U15M3C commonly used?

Typical applications include conveyors, packaging machinery, feeders, pumps, fans, textile machinery, material-handling equipment, mechanical machines, and OEM automation systems.

What is the difference between ATV320U15M3C and ATV320U15M2B?

Both models provide approximately 1.5 kW of motor capacity, but their input configurations differ. The ATV320U15M3C is designed for 200–240 V three-phase input, while the ATV320U15M2B is designed for 200–240 V single-phase input. Their enclosure formats and dimensions are also different.

What is the difference between ATV320U15M3C and ATV320U15N4C?

The primary difference is the input-voltage range. The ATV320U15M3C is designed for 200–240 V three-phase applications, while the ATV320U15N4C is designed for 380–500 V three-phase systems.

What should be checked before replacing an ATV320U15M3C?

Engineers should verify the input voltage, phase configuration, motor rated current, motor power, overload requirements, physical dimensions, mounting arrangement, communication requirements, EMC configuration, braking requirements, and machine safety functions.

Conclusion

The Schneider Electric ATV320U15M3C Variable Speed Drive is a compact 1.5 kW AC frequency inverter designed for variable speed and torque control of three-phase AC motors in industrial machinery and OEM automation systems.

Its 200–240 V AC three-phase input makes it suitable for a wide range of machine-control applications where adjustable motor speed, controlled acceleration and deceleration, and reliable motor protection are required.

With sensorless flux vector control, V/F control, braking capability, communication functions, and machine-oriented safety features, the ATV320U15M3C provides more than basic motor speed regulation. It can operate as an integrated component of a PLC-controlled automation system.

The drive’s specified 105 × 143 × 138 mm dimensions and approximately 1.4 kg weight provide a compact installation solution for industrial control cabinets and OEM machines.

The ATV320U15M3C can be integrated with PLCs, HMIs, three-phase motors, sensors, braking components, communication modules, and other industrial automation equipment. Typical applications include conveyors, packaging machinery, feeders, pumps, fans, textile equipment, material-handling systems, and general OEM production machinery.

For system integrators, machine builders, and maintenance engineers, correct selection should consider the 200–240 V three-phase supply, 1.5 kW motor rating, motor rated current, overload requirements, physical dimensions, EMC conditions, communication architecture, braking requirements, and machine safety design.

When these parameters are correctly matched to the application, the ATV320U15M3C provides a compact, flexible, and practical solution for modern industrial motor speed control.