ALTIVAR-320C Variable Speed Drive 1.1KW 400V Three-Phase

The Schneider Electric Altivar Machine ATV320 ATV320U11N4C is a compact-format variable speed drive designed for controlling three-phase asynchronous and synchronous motors in machine applications. It offers a rated power of 1.1 kW, three-phase supply from 380 to 500 V AC and a rated output current of 3 A, combining advanced motor control, industrial connectivity and integrated safety functions.

Its compact design helps optimize space in electrical panels and machines, while the integrated Class C2 EMC filter, Modbus and CANopen communications and the safety functions of the ATV320 platform make it easy to integrate into automation installations. It is especially suited to machine builders and applications such as material handling, packaging, textile processes, pumps, fans and various systems driven by electric motors.

Three-phase 1.1 kW drive for 380 to 500 V networks

The ATV320U11N4C reference is designed for a three-phase 380 to 500 V AC supply, with Schneider Electric specified tolerance of -15% to +10%. Its rated power is 1.1 kW in heavy duty operation, equivalent to approximately 1.5 HP.

• Motor rated power: 1.1 kW.
• Supply: three-phase 380-500 V AC.
• Rated output current: 3 A.
• Mains frequency: 50/60 Hz.
• Format: compact.
• Mounting: wall-mounted or on a plate inside the panel.

The drive regulates the frequency and voltage supplied to the motor to control its speed, acceleration and deceleration according to process requirements.

Control of asynchronous and synchronous motors

The Altivar Machine ATV320 is designed to control both asynchronous motors and synchronous motors. It features different control profiles that adapt operation to the characteristics of the motor and the application.

Available methods include sensorless flux vector control, different voltage/frequency ratios and energy-saving modes. For synchronous motors, it incorporates sensorless vector control.

Output frequency can reach up to 599 Hz, providing a wide regulation range for machinery and processes that require precise speed control of the drive.

Configurable acceleration and deceleration ramps

The ATV320 allows the motor behavior during start-up and stopping to be configured through different types of acceleration and deceleration ramps. Available options include linear ramps and specific profiles, as well as automatic adaptation of the deceleration ramp.

It also features DC injection braking to stop and an integrated braking chopper, making it easy to connect a compatible braking resistor when the application requires it.

Integrated Class C2 EMC filter

The ATV320U11N4C reference includes a factory-installed Class C2 EMC electromagnetic compatibility filter. This feature makes it easier to integrate the drive into installations where electromagnetic emissions generated by power electronic equipment must be controlled.

Correct installation, grounding, motor cable length and type, and other mounting conditions must be carried out in accordance with Schneider Electric instructions to maintain the intended electromagnetic compatibility performance.

Integrated Modbus and CANopen

The drive includes Modbus serial and CANopen industrial communication protocols as standard. This makes it possible to integrate it into automation architectures together with PLCs, controllers, HMI interfaces and other compatible equipment.

In addition, the ATV320 range supports optional modules to expand communication capabilities through different industrial networks:

• EtherNet/IP.
• PROFINET.
• PROFIBUS DP V1.
• EtherCAT.
• Ethernet Powerlink.
• CANopen via different interfaces.
• DeviceNet via compatible modules.

This connectivity makes it easier to control the drive as well as monitor variables, status and diagnostics within automated systems.

Integrated safety functions

The Altivar Machine ATV320 platform incorporates safety functions designed to simplify drive integration in machines that need to implement specific functional safety strategies.

Available functions in the range include:

• STO - Safe Torque Off: safe torque shutdown to prevent the motor from generating unwanted torque.
• SLS - Safely Limited Speed: safe monitoring of a limited speed.
• SS1 - Safe Stop 1: controlled safe stop before torque is removed.
• SMS - Safe Maximum Speed: monitoring of a configured maximum speed.
• GDL - Guard Door Locking: management of protective door unlocking in compatible applications.

The unit includes a dedicated 24 V DC STO input. Advanced safety functions are configured using Schneider Electric SoMove software and must be set up following the manufacturer’s specific instructions and the machine safety requirements.

Inputs and outputs for automation

The ATV320U11N4C incorporates a complete set of inputs and outputs that allows the drive to be adapted to different control strategies.

• Digital inputs: 7, including the STO input and 6 logic inputs.
• DI5 input: configurable as a pulse input up to 30 kHz.
• Analog inputs: 3.
• AI1: 0-10 V DC.
• AI2: bipolar differential input ±10 V DC.
• AI3: configurable current input, including 0-20 mA or 4-20 mA.
• Analog output: 1.
• Discrete outputs: 3.

This connectivity makes it easy to use potentiometers, sensors, signals from PLCs and other common control devices in industrial machinery.

Integrated PID regulator

The drive features an adjustable PID regulator, which allows automatic control of a process variable based on a feedback signal. This function can be used, for example, to regulate pressure, flow, speed or other compatible variables without the need for an external PID controller in certain applications.

Configurable switching frequency

The nominal switching frequency of the ATV320U11N4C is 4 kHz. The unit allows the switching frequency to be adjusted within a wider range, which may require performance derating in certain configurations and environmental conditions.

This makes it possible to balance motor noise level, drive heating and overall drive performance.

Compact format to optimize the electrical panel

The C suffix in the reference identifies this version with a compact format. The design is intended to reduce the space required inside machine panels without giving up the advanced functions of the Altivar Machine family.

• Width: approximately 105 mm.
• Height: approximately 143 mm.
• Depth: approximately 158 mm.
• Net weight: approximately 1.6 kg.
• Operating position: vertical within the tolerances specified by Schneider Electric.

With the EMC plate installed, the total height of the assembly increases, so the mounting and ventilation clearances indicated in the manufacturer’s manual must be respected.

Fan cooling

The drive uses fan cooling to dissipate the heat generated during operation. Proper panel ventilation and respecting the minimum distances between devices are essential to ensure operation within the specified temperatures.

Schneider Electric allows different mounting configurations depending on ambient temperature, drive arrangement and the removal or retention of certain ventilation covers.

IP20 protection

The ATV320U11N4C has an IP20 protection rating. For this reason, it is mainly intended to be installed inside an electrical panel or suitable enclosure that provides the required degree of protection for the installation location.

Operating temperature can reach up to 60 °C under the conditions and possible derating established by Schneider Electric. The specified storage range extends approximately from -25 to 70 °C.

Applications of the Schneider Electric ATV320U11N4C

The Altivar Machine ATV320 is mainly intended for simple and advanced machinery. Its combination of motor control, communications, inputs and outputs and safety functions makes it suitable for multiple sectors.

• Material handling machines.
• Conveyor belts and conveyor systems.
• Packaging machinery.
• Textile equipment.
• Pumps and fans.
• Process machines.
• Compatible positioning and motion systems.
• Equipment with three-phase asynchronous or synchronous motors.
• Industrial automation and machine building.

Technical characteristics of the Schneider Electric ATV320U11N4C

• Brand: Schneider Electric.
• Reference: ATV320U11N4C.
• Range: Altivar Machine ATV320.
• Type: variable speed drive.
• Format: compact.
• Application: machinery.
• Motor types: asynchronous and synchronous.
• Rated power: 1.1 kW in heavy duty.
• Equivalent power: 1.5 HP.
• Supply: three-phase.
• Rated supply voltage: 380-500 V AC.
• Supply tolerance: -15% / +10%.
• Mains frequency: 50/60 Hz.
• Rated output current: 3 A.
• Maximum output frequency: 599 Hz.
• Nominal switching frequency: 4 kHz.
• EMC filter: integrated Class C2.
• Braking chopper: integrated.
• Braking: by DC injection.
• PID regulator: integrated and adjustable.
• Integrated communication: Modbus serial and CANopen.
• Digital inputs: 7.
• Analog inputs: 3.
• Analog output: 1.
• Discrete outputs: 3.
• STO function: integrated.
• Safety functions of the range: STO, SLS, SS1, SMS and GDL.
• Protection rating: IP20.
• Cooling: fan.
• Mounting: wall / panel plate.
• Width: 105 mm.
• Height: approximately 143 mm.
• Depth: 158 mm.
• Weight: approximately 1.6 kg.

Advanced control in a compact 1.1 kW drive

The Schneider Electric ATV320U11N4C combines 1.1 kW power with a 380-500 V three-phase supply, 3 A output and a compact format designed for machine panels. Sensorless vector control, the C2 EMC filter, the PID regulator and braking functions provide a flexible platform for controlling electric motors in professional applications.

The Modbus and CANopen communications, together with the possibility of adding modules for other industrial networks and the integrated safety functions of the ATV320, make it easy to incorporate into modern automation systems that require speed control, connectivity, diagnostics and functional safety.