Product Overview

In modern industrial automation and machine-control systems, precise motor speed regulation is essential for improving productivity, reducing energy consumption, and protecting mechanical equipment. The Schneider ATV12H018M2 is an Altivar 12 variable frequency drive (VFD) designed for controlling three-phase asynchronous motors in compact machines and industrial applications. It provides variable-speed motor control while combining acceleration, deceleration, protection, and monitoring functions in a compact drive package.

The ATV12H018M2 is particularly suitable for applications where a small physical footprint and straightforward motor-speed control are required. With a compact size of 72 × 143 × 102.2 mm and a weight of approximately 0.7 kg, the drive can be installed in space-constrained control cabinets and machine enclosures. Its adjustable frequency output allows the connected motor to operate at different speeds according to the requirements of the application, helping improve process control and overall machine performance.

Technical Specifications

Function and Working Principle

The Schneider ATV12H018M2 controls motor speed by varying the frequency and voltage supplied to a three-phase asynchronous motor. Unlike a conventional starter that simply switches a motor on or off, the frequency inverter continuously adjusts the motor’s operating frequency to provide variable-speed operation.

The principal functions of the ATV12H018M2 include:

• Variable motor-speed control
• Adjustable acceleration and deceleration
• Motor starting and stopping
• Frequency adjustment
• Motor current monitoring
• Overcurrent protection
• Overvoltage protection
• Undervoltage protection
• Thermal motor protection
• DC injection braking
• Preset-speed operation
• Jog operation
• Automatic restart functions
• Local control through the integrated keypad
• Remote control through control terminals
• Modbus communication

When a speed command is provided, the ATV12H018M2 generates a variable-frequency output suitable for the connected motor. Increasing the output frequency generally increases motor speed, while reducing the frequency decreases speed.

Acceleration and deceleration ramps can be configured to prevent abrupt changes in motor speed. This is particularly useful for mechanical systems where sudden acceleration could cause belt tension, coupling shock, or unnecessary wear.

The drive can also provide motor protection and diagnostic information, allowing abnormal operating conditions to be detected before they result in more serious equipment problems.

Role in Industrial Control Systems

The ATV12H018M2 functions as the motor-speed control element within a machine or industrial automation system. It can receive commands locally through its keypad, through control terminals, or from a higher-level automation controller.

A typical system may include:

• PLC controllers
• Schneider Modicon PLCs
• Human-machine interfaces
• Industrial control panels
• Push buttons and selector switches
• Sensors
• Motor contactors
• Circuit breakers
• Three-phase asynchronous motors
• Modbus communication networks
• Industrial monitoring systems

When integrated with a PLC, the ATV12H018M2 can receive start/stop commands and speed references while returning operating and diagnostic information to the controller.

This makes the drive suitable for automated machinery where motor speed must change according to production requirements, sensor feedback, process conditions, or operator commands.

Industrial Applications

The compact size and low-power rating of the ATV12H018M2 make it suitable for small machines and auxiliary motor applications.

Typical applications include:

• Small conveyor systems
• Small ventilation fans
• Cooling fans
• Small pumps
• Material-handling equipment
• Packaging machines
• Small processing machines
• Automatic doors
• Machine tools
• Textile machinery
• Small mixers
• Material-feeding systems
• Industrial fans
• Small automation equipment

For conveyor applications, variable-speed operation can allow the material flow to be adjusted without changing the mechanical transmission ratio.

For fan applications, reducing motor speed when full airflow is not required can help improve energy efficiency.

For pumps, adjustable motor speed can provide better process control by matching pump operation to actual demand.

Installation and System Integration

Proper installation is important to ensure reliable operation of the ATV12H018M2. Because the drive controls electrical power supplied to the motor, correct wiring, grounding, ventilation, and parameter configuration are essential.

Recommended installation practices include:

• Install the drive inside an appropriate electrical cabinet or machine enclosure.
• Maintain adequate ventilation around the drive.
• Mount the unit securely using the designated mounting points.
• Keep power and control wiring properly separated where appropriate.
• Use correctly sized input and motor cables.
• Connect protective earth correctly.
• Verify the incoming voltage before energizing the drive.
• Confirm the motor rating before programming the drive.
• Configure motor parameters according to the motor nameplate.
• Set acceleration and deceleration times according to the mechanical load.
• Verify the direction of motor rotation during commissioning.
• Configure control terminals according to the application.
• Check Modbus communication parameters when network control is required.
• Perform a complete functional test before normal operation.

The ATV12H018M2 is intended for a relatively low-power motor application, so the connected motor should be selected according to the drive’s rated power and output-current capability.

During maintenance, incoming power should be isolated before accessing the drive or motor wiring. Appropriate electrical safety procedures should always be followed.

Compatible System Components

The ATV12H018M2 can be integrated with a variety of industrial automation and electrical components.

Typical associated components include:

• Schneider Modicon PLCs
• Schneider HMI systems
• Modbus RS-485 devices
• Industrial sensors
• Start/stop push buttons
• Selector switches
• Emergency-stop circuits
• Motor protection devices
• Circuit breakers
• Contactors
• Three-phase asynchronous motors
• Industrial control cabinets
• Remote monitoring systems
• Machine-control panels

For networked installations, the drive can communicate through its serial communication interface with compatible automation controllers and supervisory equipment.

The exact combination of components depends on the machine architecture, motor rating, control method, communication requirements, and applicable electrical standards.

Recommended Alternative Models

Depending on motor power, input supply, and application requirements, the following Altivar 12 models may be considered:

The correct replacement should be selected according to the motor’s rated voltage, rated current, motor power, input supply configuration, overload requirements, braking requirements, installation environment, and control method.

A model with a similar physical size is not necessarily an electrical replacement. The complete drive specification should be checked before substitution.

Key Advantages

• Compact Altivar 12 variable frequency drive
• Designed for small three-phase asynchronous motors
• 0.18 kW rated motor power
• 200 to 240 V AC single-phase input
• Three-phase motor output
• Adjustable motor frequency up to 400 Hz
• Variable-speed motor control
• Adjustable acceleration and deceleration
• Integrated motor protection functions
• DC injection braking
• Local keypad control
• Remote control through terminals
• Modbus serial communication
• RS-485 communication interface
• Compact 72 × 143 × 102.2 mm dimensions
• Approximately 0.7 kg weight
• Suitable for space-constrained machine installations
• Suitable for pumps, fans, conveyors and small industrial machinery

Technical FAQs

What is the Schneider ATV12H018M2?

The Schneider ATV12H018M2 is an Altivar 12 frequency inverter, or variable frequency drive, designed to control the speed and operation of small three-phase asynchronous motors.

What is the rated motor power of ATV12H018M2?

The ATV12H018M2 is designed for a 0.18 kW motor application. Motor current and application conditions should also be considered when selecting the drive.

What are the dimensions of the ATV12H018M2?

The specified dimensions are 72 × 143 × 102.2 mm.

How much does the ATV12H018M2 weigh?

The specified product weight is approximately 0.7 kg.

What input voltage does the ATV12H018M2 use?

The ATV12H018M2 is designed for a 200 to 240 V AC single-phase input and provides a three-phase output for the motor.

What type of motor can ATV12H018M2 control?

The drive is designed primarily for three-phase asynchronous motors used in compact industrial machines and automation equipment.

Can the ATV12H018M2 control motor speed?

Yes. It controls motor speed by adjusting the output frequency and voltage according to the configured motor-control parameters.

Does ATV12H018M2 support Modbus communication?

Yes. The drive supports serial communication through an RS-485 interface, allowing it to be integrated into compatible Modbus-based automation systems.

Where is ATV12H018M2 commonly used?

It is suitable for small conveyors, fans, pumps, packaging machines, material-handling equipment, and other compact industrial automation applications requiring variable-speed motor control.

Conclusion

The Schneider ATV12H018M2 Frequency Inverter is a compact variable-speed drive designed for controlling small three-phase asynchronous motors in industrial automation and machine applications. With a 0.18 kW motor rating, 200 to 240 V AC single-phase input, adjustable frequency output, motor protection functions, braking capability, and Modbus communication, it provides a practical solution for compact motor-control applications.

Its compact 72 × 143 × 102.2 mm dimensions and approximately 0.7 kg weight make the ATV12H018M2 particularly useful where control-panel space is limited. By providing adjustable motor speed, controlled acceleration and deceleration, monitoring, and communication capabilities, it can improve machine control while reducing the need for mechanical speed-adjustment methods. The drive is well suited to small pumps, fans, conveyors, packaging equipment, and other compact industrial machines requiring reliable variable-frequency motor control.