ALTIVAR-320C Speed Drive 0.37KW 230V Single Phase

The Schneider Electric Altivar Machine ATV320C ATV320U04M2C variable speed drive is a compact 0.37 kW frequency converter designed to control synchronous and asynchronous three-phase motors from a single-phase 200 to 240 V AC supply. It offers a rated output current of 3.3 A, built-in Modbus and CANopen communications, EMC filter category C2, machine safety functions, and a wide frequency regulation range of up to 599 Hz.

The ATV320U04M2C reference belongs to Schneider Electric's Altivar Machine ATV320 range and uses the compact ATV320C format. It is especially aimed at machine builders, industrial automation, pumping, ventilation, material handling, packaging, and other applications that require precise speed and torque control, high programming flexibility, and advanced control functions.

0.37 kW drive with single-phase supply

The ATV320U04M2C is designed for 0.37 kW severe duty motors, equivalent to approximately 0.5 HP. Its single-phase input makes installation easier in applications where a 230 V supply is available but a compatible three-phase motor needs to be controlled.

• Motor rated power: 0.37 kW.
• Equivalent power: 0.5 HP.
• Supply: single-phase.
• Rated input voltage: 200-240 V AC.
• Voltage tolerance: -15% / +10%.
• Mains frequency: 50-60 Hz.
• Rated output current: 3.3 A.
• Maximum output voltage: 240 V.
• Apparent power: 1.2 kVA at 240 V.

Single-phase input and three-phase motor output

Although the drive is powered from a single-phase 200-240 V supply, its function is to generate a variable frequency and voltage supply for controlling a compatible three-phase motor. For this reason, it is especially useful in small machines or installations where three-phase mains supply is not available.

Motor selection should take into account the rated voltage, winding connection, current, and compatibility with variable frequency drive supply.

3.3 A rated output current

Schneider Electric specifies a continuous output current of 3.3 A at 4 kHz for severe duty. The drive also has temporary overload capability to handle certain peak motor demands.

• Rated output current: 3.3 A.
• Maximum transient current: approximately 5 A for 60 seconds.
• Line current: approximately 5.9 A at 200 V and 4.9 A at 240 V.
• Nominal switching frequency: 4 kHz.

Control of asynchronous and synchronous motors

The Altivar Machine ATV320 can control different motor technologies, including asynchronous motors, synchronous motors, and permanent magnet motors. Schneider Electric positions it as a versatile drive for both simple and advanced machinery.

For asynchronous motors, it offers several control profiles:

• Sensorless flux vector control.
• Sensorless vector control with energy-saving function.
• 2-point V/f control.
• 5-point V/f control.
• Quadratic U/f control for energy savings.

For synchronous motors, it offers sensorless vector control, expanding its use in machinery with high-efficiency motors.

Output frequency up to 599 Hz

The ATV320U04M2C allows output frequency adjustment over a very wide range, making it possible to adapt motor speed to the specific requirements of each process.

• Output frequency: 0.1-599 Hz.
• Nominal switching frequency: 4 kHz.
• Adjustable switching frequency: 2-16 kHz.
• Operation above rated frequencies: subject to derating according to manufacturer conditions.

High transient torque

The Altivar 320 is designed for machinery applications that may require high torque at certain moments in the cycle. Schneider Electric specifies a transient overload torque of approximately 170 to 200% of the motor rated torque under the drive conditions indicated.

This capability is useful in applications with acceleration, load starts, or rapid demand changes.

Built-in Modbus and CANopen

The ATV320U04M2C includes Modbus serial and CANopen industrial communications as standard, allowing it to be integrated into automation and control systems without necessarily adding a basic communication module.

• Serial Modbus: integrated.
• CANopen: integrated.
• Application: communication with PLCs, controllers, and compatible automation systems.

Expandable with industrial networks

In addition to the built-in protocols, the Altivar Machine ATV320 range supports optional modules that allow the drive to be integrated into different industrial architectures.

• EtherCAT.
• PROFINET.
• EtherNet/IP.
• Profibus DP V1.
• DeviceNet.
• Ethernet Powerlink.
• CANopen via different communication options.

This expansion capability makes it possible to use the same drive in both small standalone machines and automation installations connected to more complex industrial networks.

3 analog inputs

The drive has 3 analog inputs that can receive speed references and process signals from potentiometers, sensors, PLCs, or other control systems.

• AI1: 0-10 V DC.
• AI2: ±10 V DC.
• AI3: configurable current input, including 0-20 mA and 4-20 mA.
• Resolution: 10 bits.

Programmable digital inputs

The ATV320U04M2C incorporates 6 programmable logic inputs, plus the dedicated input for the STO safety function. One of the inputs can be used as a pulse input up to 30 kHz.

• DI1-DI6 logic inputs: 24 V DC.
• Pulse input: DI5 configurable up to 30 kHz.
• Logic: configurable positive or negative.
• STO input: dedicated to the Safe Torque Off function.

Configurable analog output

The unit includes a configurable analog output that can be used to transmit information about speed, current, frequency, or other process variables to external devices.

• Voltage mode: 0-10 V DC.
• Current mode: 0-20 mA.
• Resolution: 10 bits.

Configurable digital outputs and relays

The Altivar 320 includes configurable digital outputs and relays that can signal running states, faults, target speed reached, and other conditions defined during programming.

These outputs make it easier to coordinate the drive with contactors, PLCs, indicator lights, alarm systems, and other automation elements.

Integrated safety functions

The Altivar Machine ATV320 family includes safety functions designed to help machine design comply with functional safety architectures.

These functions include:

• STO - Safe Torque Off: safe torque shutdown.
• SLS - Safely Limited Speed: safe speed limiting.
• SS1 - Safe Stop 1: controlled safe stop.

The availability of integrated safety functions can simplify certain machine architectures, although the final safety level depends on the complete system design and associated components.

Integrated PID regulator

The drive features an adjustable PID regulator, allowing it to be used directly in applications where a process variable such as pressure, flow, temperature, or speed must be maintained based on a feedback signal.

This function is especially useful in pumping, ventilation, and other regulated processes.

Configurable acceleration and deceleration ramps

The ATV320 allows the motor behavior during acceleration and stopping to be adapted through different ramp profiles.

• Linear ramp.
• S-curve ramp.
• U ramp.
• CUS ramp.
• Ramp switching.
• Automatic acceleration and deceleration adaptation.
• DC injection braking stop.

Built-in braking chopper

The Schneider Electric ATV320U04M2C incorporates a braking chopper, allowing a compatible braking resistor to be connected when the application requires dissipation of regenerative energy during rapid deceleration.

This function is especially useful in machinery with frequent acceleration and braking cycles or high-inertia loads.

Integrated EMC filter C2

The drive includes an EMC filter category C2. This feature helps control electromagnetic emissions when the drive is installed and wired according to Schneider Electric instructions.

• EMC filter: integrated.
• Category: C2.

Electronic protections for the drive and motor

The ATV320 includes various electronic protection functions to monitor drive and motor operation.

• Protection against output phase-to-phase and phase-to-ground overcurrent.
• Protection against motor phase-to-phase short circuit.
• Protection against drive overtemperature.
• Motor thermal protection through drive functions.
• Monitoring of supply and operating anomalies.

These internal protections must be complemented by the external protection and isolation devices specified by Schneider Electric and by the electrical design of the machine.

Fanless cooling

A notable feature of this 0.37 kW version is its natural fanless cooling. The absence of a fan reduces the number of mechanical components and can contribute to quieter operation and lower maintenance.

• Cooling type: natural, fanless.
• Approximate dissipation: 30 W under specified nominal conditions.

IP20 protection

The ATV320U04M2C has an IP20 protection rating according to IEC 61800-5-1. It is primarily designed to be installed inside electrical cabinets or enclosures that provide the protection level required by the application.

With the corresponding kit, it can be configured for certain UL Type 1 requirements.

Compact format for wall mounting

The ATV320C version uses a compact design aimed at saving space inside machinery and electrical cabinets.

• Format: compact.
• Mounting: wall or mounting plate.
• Width: approximately 72 mm.
• Height: approximately 143 mm.
• Depth: approximately 128 mm.
• Weight: approximately 1 kg.
• Operating position: vertical ±10°.

Wide temperature range

The drive is designed to operate in industrial environments within a wide thermal range.

• Operating temperature without derating: -10 °C to +50 °C.
• Maximum temperature with derating: +60 °C.
• Storage temperature: -25 °C to +70 °C.
• Transport temperature: -25 °C to +70 °C.
• Pollution degree: 2.
• Overvoltage category: III.

Technical characteristics of the Schneider Electric ATV320U04M2C

• Brand: Schneider Electric.
• Range: Altivar Machine ATV320.
• Model: ATV320C.
• Reference: ATV320U04M2C.
• Type: variable speed drive / frequency inverter.
• Format: compact.
• Motor power: 0.37 kW.
• Equivalent power: 0.5 HP.
• Supply: single-phase.
• Supply voltage: 200-240 V AC.
• Supply frequency: 50-60 Hz.
• Rated output current: 3.3 A.
• Maximum transient current: approximately 5 A for 60 seconds.
• Apparent power: 1.2 kVA.
• Maximum output frequency: 599 Hz.
• Nominal switching frequency: 4 kHz.
• Adjustable switching frequency: 2-16 kHz.
• Motor types: asynchronous and synchronous.
• Analog inputs: 3.
• Analog output: 1.
• Digital inputs: 6 programmable + STO.
• Integrated communication: serial Modbus and CANopen.
• PID regulator: yes.
• Braking chopper: integrated.
• EMC filter: integrated category C2.
• Safety functions: STO, SLS and SS1, among other functions of the ATV320 platform.
• Cooling: natural, fanless.
• Protection rating: IP20.
• Mounting: wall / plate.
• Approximate dimensions: 72 x 143 x 128 mm.
• Weight: approximately 1 kg.
• Operating temperature: -10 °C to +50 °C without derating.
• Maximum temperature: +60 °C with derating.

Compact drive for machinery and automation

The Schneider Electric Altivar Machine ATV320C ATV320U04M2C 0.37 kW offers a complete solution for controlling three-phase motors from a 200-240 V single-phase supply. Its 3.3 A rated current, regulation up to 599 Hz, and vector control allow the motor speed and torque to be precisely adapted to the needs of each machine.

The integration of Modbus, CANopen, safety functions, PID regulator, braking chopper, and EMC filter C2 helps reduce the number of external components and facilitates integration into automation systems. Its compact format, IP20 protection, and fanless natural cooling complete a solution especially suitable for machinery, pumping, ventilation, and low-power industrial applications.