Product Overview

Reliable motor speed control is essential for industrial machinery that operates under changing production conditions, variable loads, and continuous operating cycles. The Schneider ATV310HD18N4A is an Easy Altivar 310 Variable Speed Drive (VSD) designed to provide controlled speed regulation for compatible three-phase asynchronous motors.

The ATV310HD18N4A is designed for higher-power industrial machine applications and provides a three-phase 380–460 VAC input configuration. It is particularly suitable for applications requiring controlled motor starting, adjustable speed, controlled stopping, and integration with industrial automation systems.

As a variable speed drive, the ATV310HD18N4A controls motor operation by regulating the frequency and voltage supplied to the motor. This allows machinery to operate at different speeds according to process requirements rather than relying on fixed-speed motor operation.

The specified dimensions of the ATV310HD18N4A are 330 × 180 × 191 mm, while its approximate weight is 6.3 kg. This compact industrial form factor allows the drive to be installed in suitable electrical cabinets and machine-control panels.

The ATV310HD18N4A also supports U/F and sensorless vector motor control, providing flexibility for different types of industrial motor applications. Its communication capabilities allow it to be incorporated into PLC-based automation architectures.

The drive is therefore suitable for OEM machine builders, system integrators, maintenance teams, and industrial users requiring a compact higher-power variable-speed solution.

Technical Specifications

Function and Working Principle

The main function of the Schneider ATV310HD18N4A is to regulate the speed and operating characteristics of a compatible three-phase asynchronous motor.

A conventional AC motor connected directly to a fixed-frequency power supply operates at a speed determined primarily by supply frequency and motor characteristics. A variable speed drive provides electronic control over the frequency and voltage delivered to the motor.

The basic operating process is:

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

The incoming electrical supply is converted through the drive’s power electronics and then supplied to the motor at a controlled frequency and voltage.

The ATV310HD18N4A can therefore control:

• Motor operating speed
• Motor acceleration
• Motor deceleration
• Motor starting
• Motor stopping
• Motor torque
• Operating frequency

The drive provides several important functions, including:

• Variable motor speed control
• Adjustable acceleration ramps
• Adjustable deceleration ramps
• Controlled motor starting
• Controlled motor stopping
• U/F control
• Sensorless vector control
• Motor thermal protection
• Overcurrent protection
• Overvoltage protection
• Undervoltage protection
• Overload monitoring
• Motor phase monitoring
• Fault detection
• Alarm monitoring
• Modbus communication
• Parameter configuration

For example, an industrial conveyor may need to operate at different speeds during startup, production, and shutdown. The control system can send a speed reference to the ATV310HD18N4A, and the drive adjusts the motor output accordingly.

This approach provides much greater flexibility than operating the motor directly from a fixed-frequency supply.

Role in Industrial Control Systems

The ATV310HD18N4A acts as a motor-control interface between the automation controller and the connected three-phase motor.

A typical industrial automation system can contain:

• Schneider Modicon PLC
• Schneider HMI
• ATV310HD18N4A Variable Speed Drive
• Three-phase asynchronous motor
• Motor circuit breaker
• Magnetic contactor
• Proximity sensors
• Pressure sensors
• Temperature sensors
• Remote I/O modules
• Modbus communication network
• Industrial communication gateway
• SCADA system
• Emergency stop equipment

The PLC receives information from field sensors and determines the required operating condition.

The ATV310HD18N4A then receives speed, start, stop, or other control commands and regulates the motor.

When Modbus communication is used, the drive can exchange operating information with the automation controller.

Depending on the system design, the control system can monitor information such as:

• Drive operating status
• Motor frequency
• Speed reference
• Fault conditions
• Alarm conditions
• Communication status
• Drive parameters

This allows the variable speed drive to become an integrated part of the machine’s overall control architecture.

Industrial Applications

The Schneider ATV310HD18N4A is suitable for higher-power industrial machine applications where adjustable motor speed and controlled operation are required.

Typical applications include:

• Industrial conveyor systems
• Material handling machinery
• Packaging machinery
• Processing equipment
• Pumping systems
• Industrial fans
• Ventilation systems
• Textile machinery
• Printing machinery
• Production-line equipment
• Assembly machines
• Machine tools
• OEM industrial equipment
• General-purpose motor-driven machinery

Conveyor Systems

Conveyor systems can use the ATV310HD18N4A to control motor speed according to production requirements.

Controlled acceleration and deceleration can reduce mechanical shock on belts, couplings, gearboxes, and other drive components.

Material Handling

Material-handling machinery frequently uses motors to drive conveyors, rollers, feeders, and other mechanisms.

Variable-speed control allows these machines to be synchronized with other production equipment.

Pumping Systems

For compatible industrial pump applications, motor speed can be adjusted according to process requirements.

The drive can receive a speed reference from a PLC or another industrial controller.

Industrial Fans

The ATV310HD18N4A can control suitable higher-power fan motors. Variable-speed operation can allow airflow to be adjusted according to process requirements.

Processing Machinery

Processing equipment often requires different motor speeds during different stages of operation. The ATV310HD18N4A provides electronic speed control for compatible motor loads.

Installation and System Integration

Correct installation is essential for maintaining reliable operation, especially in higher-power drive applications.

Recommended installation practices include:

• Install the drive inside a suitable industrial control cabinet.
• Mount the drive according to the recommended orientation.
• Provide sufficient ventilation around the drive.
• Maintain appropriate clearance for heat dissipation.
• Verify the three-phase input voltage before energizing.
• Connect protective grounding correctly.
• Select appropriately rated input cables.
• Select appropriately rated motor cables.
• Keep power wiring separated from sensitive control wiring where practical.
• Verify the motor nameplate information.
• Configure the correct motor-control parameters.
• Set suitable acceleration and deceleration times.
• Verify motor rotation during commissioning.
• Configure communication parameters when Modbus communication is required.
• Check drive alarms and fault information before production operation.
• Perform a low-speed motor test before applying full load.

The ATV310HD18N4A is designed for a three-phase 380–460 VAC supply, so the incoming electrical system should be checked carefully before installation.

Correct motor parameter configuration is also important. Motor voltage, rated current, frequency, speed, and other relevant parameters should correspond to the connected motor.

Incorrect configuration can result in excessive current, poor torque performance, unstable operation, or protective trips.

For cabinet installation, thermal management should also be considered. Adequate airflow and appropriate spacing help prevent excessive operating temperature.

Compatible System Components

The ATV310HD18N4A can be integrated with Schneider automation equipment and standard industrial electrical components.

Typical associated components include:

• Schneider Modicon PLC
• Schneider HMI
• Easy Altivar 310 series drives
• Modbus RTU devices
• RS-485 communication equipment
• Industrial communication gateways
• Motor circuit breakers
• Magnetic contactors
• Three-phase asynchronous motors
• Remote I/O modules
• Proximity sensors
• Pressure transmitters
• Temperature sensors
• Emergency stop devices
• Industrial control cabinets
• SCADA systems

A typical automation architecture can be represented as:

Field Sensors → PLC → ATV310HD18N4A → Three-Phase Motor → Mechanical Equipment

The PLC processes field information and determines the required motor operating condition.

The ATV310HD18N4A receives the control command and regulates motor speed and torque.

An HMI can provide operators with access to selected operating parameters, drive status, alarms, and diagnostic information.

Recommended Alternative Models

Depending on motor power, load characteristics, supply requirements, and control architecture, the following Schneider Electric models may also be considered:

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

A model with a similar power rating should not automatically be considered a direct replacement. Electrical ratings and application requirements should always be verified before substitution.

Key Advantages

• Easy Altivar 310 variable speed drive
• Designed for industrial machine applications
• 18.5 kW motor-control capacity
• Approximately 25 HP motor rating
• Three-phase 380–460 VAC input
• Three-phase asynchronous motor control
• Variable-frequency speed regulation
• U/F motor control
• Sensorless vector control
• Adjustable acceleration and deceleration
• Controlled motor starting and stopping
• Integrated motor protection functions
• Overcurrent protection
• Overvoltage protection
• Undervoltage protection
• Overload monitoring
• Modbus RTU communication
• RS-485 communication interface
• RJ45 communication connector
• Forced-air cooling
• IP20 protection
• Industrial cabinet installation
• Dimensions of 330 × 180 × 191 mm
• Weight of approximately 6.3 kg
• Suitable for conveyors
• Suitable for material handling equipment
• Suitable for pumps and fans
• Suitable for processing machinery
• Suitable for packaging equipment
• Suitable for OEM industrial applications

Technical FAQs

What is the Schneider ATV310HD18N4A?

The Schneider ATV310HD18N4A is an Easy Altivar 310 Variable Speed Drive designed to control compatible three-phase asynchronous motors in industrial machinery and automation applications.

What is the rated motor power?

The ATV310HD18N4A is designed for 18.5 kW motor applications, equivalent to approximately 25 HP.

What input voltage does the ATV310HD18N4A use?

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

What are the dimensions of the ATV310HD18N4A?

The specified dimensions are 330 × 180 × 191 mm.

How much does the ATV310HD18N4A weigh?

The specified product weight is approximately 6.3 kg.

What type of motor can it control?

The drive is designed for compatible three-phase asynchronous AC motors within its applicable electrical and operating ratings.

Does the ATV310HD18N4A support Modbus communication?

Yes. The ATV310 family supports Modbus RTU communication through an RS-485 interface, allowing the drive to communicate with compatible industrial controllers.

Does the drive support sensorless vector control?

Yes. The drive supports U/F and sensorless vector control for compatible motor applications.

What are typical applications for this drive?

Typical applications include conveyors, material handling equipment, pumps, industrial fans, packaging machinery, processing equipment, production-line machinery, textile equipment, and other industrial motor-driven systems.

Can it be integrated with a PLC?

Yes. The ATV310HD18N4A can be incorporated into PLC-based automation systems through Modbus communication or suitable control interfaces.

Why use a variable speed drive for an 18.5 kW motor?

A variable speed drive provides adjustable motor speed, controlled acceleration and deceleration, smoother starting and stopping, and greater flexibility in coordinating motor operation with the machine-control system.

Conclusion

The Schneider ATV310HD18N4A Variable Speed Drive is an 18.5 kW Easy Altivar 310 drive designed for variable-speed control of compatible three-phase asynchronous motors in industrial machinery.

Its combination of variable-frequency motor control, U/F and sensorless vector control, adjustable acceleration and deceleration, motor protection functions, and Modbus RTU communication makes it suitable for a broad range of industrial automation applications.

With dimensions of 330 × 180 × 191 mm and a weight of approximately 6.3 kg, the ATV310HD18N4A provides a practical installation format for higher-power machine applications while maintaining the compact architecture associated with the Easy Altivar 310 product family.

When integrated with Schneider PLCs, HMIs, sensors, motor protection equipment, communication networks, and compatible three-phase motors, the ATV310HD18N4A can provide a reliable motor-control solution for conveyors, material handling systems, pumps, fans, packaging machinery, processing equipment, and other industrial automation applications.