ALTIVAR-320B Speed Drive 1.5KW 400V Three-Phase

The Schneider Electric Altivar Machine ATV320 ATV320U15N4B is a 1.5 kW variable speed drive designed for controlling asynchronous and synchronous motors in industrial machines and installations. It operates with a three-phase 380 to 500 V supply and features a narrow Book format, designed to optimize the available space inside the electrical cabinet.

The ATV320 combines speed regulation, advanced motor control, industrial communications, and integrated safety functions. The ATV320U15N4B reference delivers a rated output current of 4.1 A and is ready for Heavy Duty applications, including machinery with demanding torque, acceleration, and dynamic control requirements.

Three-phase 1.5 kW drive for asynchronous and synchronous motors

The drive is sized for 1.5 kW or 2 HP motors in Heavy Duty service. It supports conventional asynchronous motors and synchronous motors, offering different control profiles to adapt drive behavior to the application.

Its control modes for asynchronous motors include sensorless flux vector control and different voltage/frequency ratios. For synchronous motors, it provides sensorless vector control.

• Motor power: 1.5 kW.
• Equivalent power: 2 HP.
• Supply: three-phase.
• Supply voltage: 380-500 V AC.
• Line frequency: 50-60 Hz.
• Rated output current: 4.1 A.
• Maximum transient current: 6.2 A for 60 seconds.

Wide output frequency range

The Schneider Electric ATV320U15N4B allows output frequency adjustment between 0.1 and 599 Hz, providing a wide range to adapt motor speed to process requirements.

The nominal switching frequency is 4 kHz and can be adjusted between 2 and 16 kHz. For certain high switching frequencies, current derating may be required according to Schneider Electric guidelines.

Sensorless vector control

The Altivar Machine ATV320 incorporates advanced algorithms to control the motor without the need to install an external speed sensor in many applications. Available profiles include:

• Sensorless flux vector control.
• Sensorless vector control with Energy Saving mode.
• 2-point voltage/frequency ratio.
• 5-point voltage/frequency ratio.
• Quadratic U/f ratio for energy savings.
• Sensorless vector control for synchronous motors.

This flexibility makes it suitable for machinery with different speed, torque, and dynamic response requirements.

Integrated safety functions

One of the standout features of the ATV320 range is the integration of functional safety functions directly into the drive, reducing the need for certain external components in compatible applications.

• STO - Safe Torque Off: safe torque shutdown, SIL 3 level.
• SS1 - Safe Stop 1: controlled safe stop.
• SLS - Safely Limited Speed: safe speed limitation.
• SMS - Safe Maximum Speed: safe maximum speed monitoring.

These functions must be implemented following the safety architecture and Schneider Electric instructions for each machine.

Integrated Modbus and CANopen

The ATV320U15N4B includes Modbus serial and CANopen communications as standard, making it easy to integrate with PLCs, controllers, HMI interfaces, and compatible automation systems.

In addition, optional modules allow integration into other industrial networks, including:

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

This communication capability makes it easy to integrate the drive into both simple and advanced automation architectures.

Configurable inputs and outputs

The drive features a complete set of inputs and outputs to adapt its operation to the machine control system.

• Digital inputs: 6 logic inputs DI1-DI6 plus STO input.
• DI5 input: configurable as a pulse input up to 30 kHz.
• Analog inputs: 3.
• AI1: 0-10 V.
• AI2: ±10 V.
• AI3: 0-20 mA, also configurable for 4-20 mA and other ranges.
• Analog output: 1, configurable as voltage or current.
• Digital outputs: configurable open-collector outputs.
• Relay outputs: configurable relays for signaling and control functions.

Integrated EMC C2 filter

The ATV320U15N4B reference includes a factory-installed Class C2 EMC filter. This element helps limit the electromagnetic emissions generated by the drive when the installation, wiring, and operating conditions comply with Schneider Electric specifications.

Integrated braking chopper

The drive features an integrated braking chopper, allowing the use of a compatible external braking resistor when the application requires energy dissipation during rapid deceleration or high-inertia movements.

It also supports four-quadrant operation within the configurations and conditions specified by the manufacturer.

Integrated protections for the drive and motor

The Altivar Machine ATV320 includes different monitoring functions designed to protect the drive against abnormal operating conditions, including:

• Protection against output phase-to-phase and phase-to-ground overcurrent.
• Protection against motor phase-to-phase short circuits.
• Protection against drive overtemperature.
• Thermal protection.
• Input phase loss monitoring.

These internal protections complement, but do not replace, the external protection devices required by the electrical installation.

Book format to optimize panel space

The version identified by the B suffix uses the vertical Book format. This design has a width of only 45 mm, allowing multiple drives to be installed while occupying less horizontal space inside the electrical cabinet.

• Width: 45 mm.
• Height: 325 mm.
• Depth: 245 mm.
• Net weight: 2.5 kg.
• Mounting: in electrical cabinet.
• Mounting position: vertical, ±10°.

IP20 protection rating

The drive has an IP20 protection rating according to EN/IEC 61800-5-1, so it is primarily intended for installation inside a suitable electrical enclosure or cabinet.

The cooling system uses forced ventilation via fan. The unit can operate at ambient temperatures from -10 to 50 °C without derating and up to 60 °C with the derating factors specified by Schneider Electric.

Technical features of the Schneider Electric ATV320U15N4B

• Brand: Schneider Electric.
• Range: Altivar Machine.
• Series: ATV320.
• Reference: ATV320U15N4B.
• Type: variable speed drive.
• Application: motor control in machinery.
• Format: Book.
• Motor power: 1.5 kW.
• Power: 2 HP.
• Number of phases: 3.
• Supply voltage: 380-500 V AC, -15/+10 %.
• Supply frequency: 50-60 Hz, ±5 %.
• Line current at 380 V: 6.5 A.
• Line current at 500 V: 4.9 A.
• Continuous output current: 4.1 A at 4 kHz.
• Maximum transient current: 6.2 A for 60 s.
• Apparent power: 4.2 kVA at 500 V.
• Output frequency: 0.1-599 Hz.
• Nominal switching frequency: 4 kHz.
• Adjustable switching frequency: 2-16 kHz.
• Compatible motors: asynchronous and synchronous.
• Integrated communications: Modbus serial and CANopen.
• EMC filter: integrated Class C2.
• Braking chopper: integrated.
• STO function: yes, SIL 3.
• SS1 function: yes.
• SLS function: yes.
• SMS function: yes.
• Analog inputs: 3.
• Analog output: 1.
• Digital inputs: 6 + STO.
• Protection rating: IP20.
• Cooling: fan.
• Dimensions: 45 x 325 x 245 mm.
• Weight: 2.5 kg.
• Operating temperature without derating: -10 to 50 °C.
• Maximum operating temperature: 60 °C with derating.
• Main standard: IEC 61800-5-1.

The Schneider Electric Altivar Machine ATV320U15N4B 1.5 kW is a speed control solution especially suited to machinery that requires precise motor regulation, high integration capability, and advanced safety functions. Its three-phase 380-500 V supply, 45 mm wide Book format, Modbus and CANopen communications, synchronous and asynchronous motor control, and STO, SS1, SLS, and SMS functions make it suitable for a wide range of industrial automation applications.