Product Overview

Reliable motor speed control is essential in industrial automation, especially for machines that need flexible operating speeds, controlled acceleration, and stable motor performance. The Schneider ATV310H055N4A is an Easy Altivar 310 Variable Speed Drive (VSD) designed for controlling compatible three-phase asynchronous motors in industrial machinery and automation applications.

The drive regulates motor speed by adjusting the frequency and voltage supplied to the motor. Instead of running a motor continuously at a fixed speed, the variable speed drive allows the motor to operate according to actual process requirements. This can improve machine flexibility, reduce mechanical stress during starting and stopping, and support more efficient motor operation.

The ATV310H055N4A is designed for 0.55 kW motor applications and is suitable for three-phase industrial power systems. Its compact construction makes it practical for machine-control panels and electrical cabinets where installation space is limited.

The specified dimensions are 143 × 72 × 130 mm, with an approximate weight of 0.8 kg. The compact size makes the drive particularly suitable for OEM machinery, conveyors, packaging equipment, material-handling systems, and other simple industrial machines.

As part of the Easy Altivar 310 family, the ATV310H055N4A provides a practical combination of variable-speed motor control, protection functions, communication capability, and compact installation for general-purpose automation.

Technical Specifications

Function and Working Principle

The main function of the Schneider ATV310H055N4A is to provide adjustable-speed control for a compatible three-phase asynchronous motor.

An AC motor connected directly to a fixed-frequency power supply normally operates at a relatively constant speed. A variable speed drive introduces electronic power conversion between the electrical supply and the motor, allowing the output frequency to be adjusted according to machine requirements.

The ATV310H055N4A performs several important control functions:

• Variable motor speed regulation
• Adjustable acceleration
• Adjustable deceleration
• Smooth motor starting
• Controlled motor stopping
• Motor torque management
• V/F motor control
• Sensorless vector control
• Electronic motor protection
• Overcurrent monitoring
• Overvoltage protection
• Undervoltage protection
• Motor thermal protection
• Overload detection
• Underload detection
• Fault monitoring
• Modbus communication
• Local parameter configuration

The basic power-conversion process can be represented as:

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

The incoming AC power is converted internally into a controlled electrical output. By adjusting output frequency and voltage, the drive controls motor speed and torque.

For example, a conveyor may require different operating speeds depending on production conditions. Instead of changing mechanical components, the control system can provide a new speed reference to the ATV310H055N4A, allowing the motor speed to be adjusted electronically.

Role in Industrial Control Systems

The ATV310H055N4A functions as the motor-control interface between an automation controller and the connected three-phase motor.

A typical industrial automation system may contain:

• Schneider Modicon PLC
• Schneider HMI
• Easy Altivar 310 Variable Speed Drive
• Motor protection circuit breaker
• Magnetic contactor
• Three-phase induction motor
• Proximity sensors
• Pressure sensors
• Temperature sensors
• Emergency stop devices
• Modbus communication network
• Remote I/O modules
• SCADA monitoring system

The PLC can provide start, stop, speed reference, and other operating commands to the drive. The ATV310H055N4A processes these commands and controls the connected motor.

The integrated communication interface also allows the drive to participate in a larger control architecture when Modbus communication is used.

This makes the ATV310H055N4A useful for applications where motor speed needs to be coordinated with sensors, PLC logic, HMI commands, and other machine functions.

Industrial Applications

The Schneider ATV310H055N4A can be used in a variety of industrial applications requiring compact and reliable variable-speed motor control.

Typical applications include:

• Conveyor systems
• Packaging machinery
• Material handling equipment
• Industrial fans
• Ventilation equipment
• Small pumping systems
• Textile machinery
• Printing machines
• Assembly machinery
• Processing equipment
• Machine tools
• Food processing equipment
• OEM machinery
• General-purpose industrial equipment

Conveyor Systems

The ATV310H055N4A can regulate conveyor motor speed according to production requirements. Controlled acceleration and deceleration can also reduce mechanical stress on belts, couplings, gears, and other components.

Packaging Machinery

Packaging machines frequently require coordinated motor operation and adjustable speed. Variable-speed control allows machine builders to modify motor speed through electrical parameters rather than mechanical modifications.

Material Handling

Material-handling equipment can use variable-speed drives to coordinate conveyors, feeders, rollers, and other motor-driven mechanisms.

Fans and Ventilation

For suitable fan applications, adjusting motor speed according to airflow requirements can provide more flexible operation and avoid unnecessary full-speed operation.

Pumping Equipment

The drive can be used for compatible small pump applications where motor speed needs to be adjusted according to flow or process requirements.

Installation and System Integration

Correct installation is important for reliable drive operation and long-term system performance.

Recommended installation practices include:

• Install the drive inside a suitable industrial control enclosure.
• Mount the drive in the recommended vertical orientation.
• Provide adequate ventilation around the unit.
• Verify the three-phase input voltage before energizing.
• Connect protective grounding correctly.
• Use appropriately rated power cables.
• Use suitable motor cables for the connected motor.
• Separate high-power wiring from sensitive control wiring where practical.
• Enter the motor nameplate parameters correctly.
• Configure acceleration and deceleration times according to the machine.
• Select the appropriate motor-control mode.
• Verify motor rotation during commissioning.
• Configure communication parameters when Modbus control is required.
• Check drive status and alarm information before production operation.
• Perform a low-speed motor test before full-load operation.

The input power supply must be compatible with the drive’s rated electrical requirements. The connected motor should also be selected according to the drive’s rated current and application duty.

Correct parameter configuration is particularly important. Incorrect motor voltage, current, frequency, or speed settings can result in unstable operation, excessive current, or unnecessary protective trips.

Compatible System Components

The ATV310H055N4A can be integrated with Schneider automation equipment and standard industrial electrical components.

Typical associated components include:

• Schneider Modicon PLC
• Schneider HMI
• Easy Altivar 310 drives
• Modbus RS-485 devices
• Industrial communication gateways
• Motor circuit breakers
• Contactors
• Three-phase induction motors
• Remote I/O modules
• Proximity sensors
• Pressure sensors
• Temperature sensors
• Emergency stop devices
• Industrial control panels
• SCADA systems

A typical system architecture can be represented as:

Sensors → PLC → ATV310H055N4A → Three-Phase Motor → Mechanical Equipment

The PLC receives information from field sensors and determines the required motor operating condition. The ATV310H055N4A then adjusts motor operation according to the commands received from the controller.

Recommended Alternative Models

Depending on motor power, input voltage, and application requirements, the following Schneider Electric models may also be considered:

The correct alternative should be selected according to motor power, rated current, supply voltage, load characteristics, overload requirements, communication requirements, cabinet space, and environmental conditions.

A drive with a similar power rating should not automatically be considered a direct replacement because input configuration, control functions, dimensions, communication options, and application ratings may differ.

Key Advantages

• Easy Altivar 310 variable speed drive design
• 0.55 kW motor-control capacity
• Approximately 0.75 HP motor rating
• Three-phase 380–460 VAC input
• Designed for compatible three-phase asynchronous motors
• Variable-frequency motor speed control
• V/F motor control
• Sensorless vector control
• Adjustable acceleration and deceleration
• Modbus RTU communication
• RS-485 communication interface
• RJ45 communication connector
• Electronic motor protection
• Overload and underload monitoring
• Compact installation footprint
• Dimensions of 143 × 72 × 130 mm
• Weight of approximately 0.8 kg
• Self-cooled construction
• IP20 protection
• Suitable for OEM machinery
• Suitable for conveyors, packaging equipment, fans, pumps, and material handling systems

Technical FAQs

What is the Schneider ATV310H055N4A?

The Schneider ATV310H055N4A is an Easy Altivar 310 Variable Speed Drive designed to control compatible three-phase asynchronous motors in industrial machine applications.

What is the rated motor power?

The ATV310H055N4A is designed for 0.55 kW motor applications, equivalent to approximately 0.75 HP.

What input voltage does the ATV310H055N4A use?

The drive is designed for a three-phase 380–460 VAC power supply.

What are the dimensions of the ATV310H055N4A?

The specified dimensions are 143 × 72 × 130 mm.

How much does the ATV310H055N4A weigh?

The specified weight is approximately 0.8 kg.

What type of motor can it control?

The drive is designed for compatible three-phase asynchronous AC motors within its rated electrical and application parameters.

Does the ATV310H055N4A support Modbus?

Yes. The drive supports Modbus RTU communication through its RS-485 communication interface.

Can the drive be connected to a PLC?

Yes. The ATV310H055N4A can be integrated into PLC-based automation systems using Modbus communication or appropriate control terminals.

What are typical applications?

Typical applications include conveyors, packaging machines, material handling systems, fans, ventilation equipment, pumps, textile machinery, printing equipment, assembly machines, and OEM industrial machinery.

What is the purpose of a variable speed drive?

A variable speed drive controls the frequency and voltage supplied to an AC motor, allowing the motor to operate at different speeds according to machine and process requirements. This can improve process flexibility and reduce mechanical stress during starting and stopping.

Conclusion

The Schneider ATV310H055N4A Variable Speed Drive is a compact 0.55 kW Easy Altivar 310 drive designed for reliable variable-speed control of compatible three-phase asynchronous motors. Its combination of adjustable motor speed, controlled acceleration and deceleration, motor protection, and industrial communication capability makes it suitable for a wide range of simple machine and automation applications.

With dimensions of 143 × 72 × 130 mm and a weight of approximately 0.8 kg, the ATV310H055N4A is well suited to compact control cabinets and machine panels. Its 380–460 VAC three-phase supply configuration makes it appropriate for industrial power systems requiring a compact drive for smaller motor loads.

When integrated with Schneider PLCs, HMIs, sensors, motor protection devices, Modbus networks, and compatible three-phase motors, the ATV310H055N4A can provide a practical and scalable motor-control solution for conveyors, packaging machinery, material handling systems, fans, pumps, textile equipment, and other industrial automation applications.