Product Overview

The Schneider Electric ATV320U07S6C Variable Speed Drive is a compact Altivar Machine ATV320 frequency inverter designed for three-phase AC motor control in industrial machinery, OEM equipment, and automated production systems.

This model is designed for a 525–600 V AC three-phase power supply and provides a 0.75 kW (1 HP) heavy-duty motor rating. It is particularly suitable for industrial environments where higher three-phase supply voltages are used and precise motor speed and torque control are required.

The ATV320U07S6C converts fixed-frequency three-phase AC power into a controlled variable-frequency output for the connected motor. By regulating output frequency and voltage, it allows the motor to operate at different speeds while providing controlled acceleration, deceleration, torque management, braking, and motor protection.

The drive uses the Compact-format enclosure of the ATV320 family. Its specified dimensions are 105 × 142 × 158 mm, with an approximate weight of 1.27 kg. This compact construction allows the drive to be installed efficiently inside machine control cabinets.

The ATV320U07S6C is designed for both simple and advanced machine applications. Typical applications include packaging machinery, material-handling systems, textile machinery, mechanical actuators, conveyors, feeders, pumps, fans, and other OEM equipment.

Technical Specifications

Function and Working Principle

The primary function of the ATV320U07S6C is to control the speed and torque of a three-phase AC motor.

The drive receives a 525–600 V three-phase AC supply and converts it into a controlled output suitable for the motor.

The basic power-conversion process is:

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

The incoming AC supply is first converted into DC power through the drive’s power-conversion stage. The inverter then uses power semiconductor switching to generate a controlled three-phase output.

Motor speed is primarily regulated by adjusting output frequency. The drive simultaneously manages voltage and current to maintain the required motor torque.

This allows the ATV320U07S6C to perform functions such as:

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

The drive supports sensorless flux vector control, which can provide improved torque and speed performance at low and medium motor speeds compared with basic V/F control.

The ATV320 platform can also support compatible synchronous motor applications, giving the drive additional flexibility for machine builders.

Role in Industrial Control Systems

The ATV320U07S6C normally functions as the motor-control device between the industrial power supply and the machine motor.

A typical control architecture can be represented as:

PLC / Controller → ATV320U07S6C → Three-Phase AC Motor → Mechanical Load

The PLC manages machine logic, sequencing, interlocking, and process requirements, while the ATV320U07S6C handles the electrical control of the motor.

For example, in a material-handling machine, the PLC may issue a speed reference according to the required production rate. The ATV320U07S6C receives this reference and generates the appropriate output frequency and voltage for the motor.

The drive can also return operating information to the controller.

Typical feedback information includes:

• Motor frequency
• Motor current
• Speed reference
• Drive operating status
• Warning status
• Fault status
• Motor-control information
• Diagnostic information

This allows the PLC and drive to operate as an integrated motor-control system.

For machines using several motors, multiple ATV320 drives can be coordinated through a common controller, allowing each motor to operate according to its own speed and process requirements.

Industrial Applications

Packaging Machinery

Packaging systems often require controlled motor speed for feeding, indexing, conveying, positioning, and product handling.

The ATV320U07S6C can provide variable speed control while allowing the PLC to coordinate different machine operations.

Material Handling

Material-handling equipment often requires controlled motor acceleration and adjustable speed.

The drive can be used with rollers, conveyors, transfer mechanisms, feeders, and other motor-driven equipment.

Conveyor Systems

The ATV320U07S6C can regulate conveyor motor speed according to production requirements.

Variable speed control can help synchronize the conveyor with upstream and downstream equipment while controlled acceleration and deceleration can reduce mechanical shock.

Textile Machinery

Textile machinery frequently requires stable motor speed for winding, feeding, and material transportation.

The ATV320U07S6C can provide adjustable speed and torque control for compatible textile applications.

Mechanical Actuators

Machine actuators driven by AC motors can use variable frequency control when controlled movement and adjustable speed are required.

Hoisting Equipment

Compatible hoisting and lifting applications can benefit from controlled acceleration, deceleration, braking, and torque management.

Application-specific braking and safety requirements must be considered when configuring such systems.

Pumps

The drive can regulate compatible pump motors where variable flow or pressure control is required.

Fans and Ventilation Equipment

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

OEM Machine Building

The Compact-format design makes the ATV320U07S6C particularly suitable for OEM machine builders that need to integrate variable speed drives into relatively compact electrical cabinets.

Installation and System Integration

Correct installation is important for safe and reliable operation.

Before installing the ATV320U07S6C, engineers should verify:

• Three-phase supply 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

The ATV320U07S6C is designed for a 525–600 V AC three-phase supply, so the actual machine electrical system must be compatible with this voltage range.

Typical Installation Procedure

1. Disconnect and isolate the incoming electrical supply.
2. Verify that hazardous voltage is no longer present.
3. Mount the drive securely on the electrical panel.
4. Install the drive in the recommended vertical position.
5. Maintain the required clearance around the drive.
6. Connect the three-phase AC supply.
7. Connect the three-phase motor.
8. Connect protective grounding.
9. Connect digital and analog control wiring.
10. Connect communication wiring if 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 PLC or network communication.
20. Test the complete machine under normal operating conditions.

The ATV320U07S6C is specified without an integrated EMC filter. Therefore, the overall machine electrical design should consider external EMC filtering and cable-management requirements where necessary.

The drive should also be mounted in the recommended vertical orientation, with sufficient clearance for heat dissipation.

Communication and Control Integration

The ATV320U07S6C provides communication capabilities for integration into industrial automation systems.

The standard communication interfaces include:

• Modbus Serial
• CANopen

Optional communication modules can extend the drive’s networking capabilities.

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

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

Communication can be used to exchange:

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

This enables the ATV320U07S6C to operate as part of a coordinated machine-control architecture rather than as an isolated motor controller.

The drive can also be configured and diagnosed using compatible Schneider engineering software, which can simplify commissioning and maintenance.

Compatible System Components

The ATV320U07S6C can be integrated with a range of electrical and industrial automation components.

The exact accessories should be selected according to the motor characteristics, supply voltage, braking requirements, EMC environment, communication architecture, and machine safety design.

Recommended Alternative Models

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

The ATV320U15S6C can be considered when approximately 1.5 kW of motor capacity is required, while the ATV320U22S6C provides a higher 2.2 kW power level for larger applications.

The ATV320U07N4C is a useful comparison when the application uses a lower 380–500 V three-phase supply rather than the 525–600 V supply required by the ATV320U07S6C.

For replacement projects, engineers should not select a drive solely by motor horsepower. Input voltage, motor current, overload rating, communication requirements, physical dimensions, EMC configuration, braking requirements, and safety functions should all be checked.

Key Advantages

• Altivar Machine ATV320 Compact format
• 0.75 kW (1 HP) heavy-duty motor rating
• 525–600 V AC three-phase input
• Three-phase AC motor output
• 1.7 A nominal output current
• 105 × 142 × 158 mm dimensions
• Approximately 1.27 kg weight
• Sensorless flux vector control
• V/F motor control
• Compatible with asynchronous motors
• Compatible with suitable synchronous motor applications
• Maximum output frequency up to 599 Hz
• Integrated brake chopper
• Modbus serial communication
• CANopen communication
• Optional industrial communication modules
• Fan-cooled design
• IP20 protection
• Machine-oriented safety functions
• Suitable for OEM machinery
• Suitable for compact electrical cabinets
• Suitable for packaging equipment
• Suitable for material-handling systems
• Suitable for textile machinery
• Suitable for mechanical actuators
• Suitable for conveyors, pumps and fans

Technical FAQs

What is the Schneider ATV320U07S6C?

The ATV320U07S6C is a 0.75 kW Altivar Machine ATV320 Variable Speed Drive designed to control compatible three-phase AC motors in industrial machinery and OEM automation systems.

What motor power does the ATV320U07S6C support?

The drive is rated for a 0.75 kW (1 HP) heavy-duty motor application.

What input voltage does it require?

The ATV320U07S6C is designed for a 525–600 V AC three-phase supply.

What is the nominal output current?

The nominal output current is 1.7 A under the specified heavy-duty operating conditions.

What are the dimensions?

The specified dimensions are 105 × 142 × 158 mm.

How much does the ATV320U07S6C weigh?

The approximate net weight is 1.27 kg.

What type of motor can it control?

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

Does it support sensorless vector control?

Yes. The ATV320U07S6C supports flux vector control without a sensor, providing improved torque and speed performance for suitable applications.

What is the maximum output frequency?

The drive can provide an output frequency of up to approximately 599 Hz, depending on configuration and application requirements.

Does the drive include an EMC filter?

The ATV320U07S6C is specified without an integrated EMC filter. External EMC components may therefore be required depending on the installation and applicable EMC requirements.

Does it have a brake chopper?

Yes. The ATV320U07S6C provides an integrated braking function suitable for compatible dynamic-braking applications.

Which communication protocols are supported?

The standard communication protocols include Modbus serial and CANopen. Optional modules can provide additional networks such as PROFINET, EtherNet/IP, EtherCAT, PROFIBUS DP V1, DeviceNet, and Ethernet Powerlink.

Can the ATV320U07S6C communicate with a PLC?

Yes. The drive can be integrated with PLC systems for start/stop commands, speed references, status monitoring, diagnostics, and coordinated machine control.

Where is the ATV320U07S6C commonly used?

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

What is the difference between ATV320U07S6C and ATV320U07N4C?

Both models are 0.75 kW three-phase ATV320 drives, but their input-voltage ranges are different. The ATV320U07S6C is designed for 525–600 V AC, while the ATV320U07N4C is designed for 380–500 V AC applications.

What should be checked before replacing an ATV320U07S6C?

The replacement drive should be checked against the machine’s supply voltage, motor rated current, motor power, overload requirements, mounting dimensions, communication requirements, EMC configuration, braking requirements, and safety architecture.

Conclusion

The Schneider Electric ATV320U07S6C Variable Speed Drive is a compact 0.75 kW AC frequency inverter designed for three-phase motor control in industrial machinery, OEM equipment, and automated production systems.

Its 525–600 V AC three-phase input makes it particularly suitable for industrial electrical systems operating at higher three-phase voltages. With a 1.7 A nominal output current, sensorless flux vector control, adjustable frequency operation, braking capability, communication functions, and integrated machine-safety features, it provides a flexible motor-control solution for a wide range of applications.

The compact 105 × 142 × 158 mm enclosure and approximately 1.27 kg weight allow the ATV320U07S6C to be integrated into machine control cabinets without requiring a large installation footprint.

The drive can operate together with PLCs, HMIs, three-phase motors, sensors, braking components, communication modules, and other automation equipment. Typical applications include packaging machinery, conveyors, material-handling systems, textile equipment, mechanical actuators, pumps, fans, and OEM industrial machines.

For machine builders, system integrators, and maintenance engineers, proper model selection should consider the 525–600 V three-phase supply, 0.75 kW motor rating, 1.7 A output current, overload requirements, EMC configuration, communication architecture, braking requirements, cabinet dimensions, and machine safety requirements. When these parameters are correctly matched, the ATV320U07S6C provides a compact and versatile solution for high-voltage industrial motor speed control.