

The Schneider Electric Altivar Machine ATV320C ATV320U11M2C variable speed drive is a compact 1.1 kW frequency converter designed for controlling synchronous and asynchronous motors in machinery and automation applications. It is powered by a single-phase 200 to 240 V AC supply and provides a controlled output for three-phase motors, allowing precise regulation of speed, torque, and acceleration and deceleration ramps.
The ATV320U11M2C reference belongs to Schneider Electric’s Altivar Machine ATV320 range and combines advanced motor control, integrated safety functions, Modbus and CANopen communications, a C2 EMC filter, and a compact format of only 105 mm width. It is especially suited for machine builders, industrial automation, handling systems, pumping, ventilation, textile machinery, material handling, and other applications that require precise motor control.
The ATV320U11M2C is designed to operate with a single-phase 200 to 240 V AC supply, with acceptable supply limits of approximately 170 to 264 V. Its mains frequency is 50/60 Hz.
The Schneider Electric Altivar 320 is designed to control both asynchronous and synchronous motors. Its different control profiles make it possible to adapt the drive operation to the characteristics of the machine and the installed motor.
For asynchronous motors, it offers different control strategies, including:
For synchronous motors, it provides sensorless vector control, expanding the drive’s application possibilities in modern machinery.
The ATV320U11M2C can generate an output frequency from 0.1 to 599 Hz, offering a wide regulation range for standard motors and high-speed applications.
The nominal switching frequency is 4 kHz and can be adjusted from 2 to 16 kHz. At certain higher frequencies, the power derating factor indicated by Schneider Electric must be applied.
The Altivar 320 is designed for machinery applications that may occasionally require high starting torque or temporary overload. The ATV320U11M2C model supports a maximum transient current of 10.4 A for 60 seconds in heavy duty.
It also provides a transient torque of approximately 170 to 200% of the motor rated torque, depending on operating conditions and configuration.
One of the most important features of the Altivar Machine ATV320 range is the integration of machine safety functions. These functions help simplify the design of certain safety systems and reduce the need for additional external components, always in accordance with the safety architecture planned for each machine.
Available functions include:
These features make the ATV320 especially suitable for machinery requiring advanced control and safety functions.
The drive includes Modbus serial and CANopen communications as standard via RS485 interface and RJ45 connector. This makes integration into automation systems, PLCs, and industrial networks easier.
In addition to the integrated communications, the Altivar 320 allows optional modules to be added to expand connectivity. Depending on the configuration and selected accessories, it can be integrated into networks such as:
This flexibility makes it suitable for both standalone machines and production lines and more complex automation architectures.
The ATV320U11M2C provides numerous inputs and outputs for connecting sensors, pushbuttons, potentiometers, reference signals, and automation devices.
It features 3 analog inputs:
It also integrates programmable digital inputs, a pulse input, and a dedicated input for the STO safety function.
The drive includes a configurable analog output that can operate as a 0-20 mA current signal or a 0-10 V voltage signal.
It also incorporates configurable relay outputs that can be used to signal operating states, faults, reached speed, or other conditions defined during drive programming.
The ATV320 includes an adjustable PID controller, allowing automatic process variable control through a feedback signal. This function is especially useful in applications such as pumping, ventilation, pressure control, flow control, or certain machinery processes.
The drive allows different acceleration and deceleration profiles to be selected to adapt motor behavior to the mechanical requirements of each application.
Available ramps include:
It also allows stopping by DC injection braking.
The Schneider Electric ATV320U11M2C incorporates an integrated braking chopper, allowing a suitable braking resistor to be connected when the application needs to quickly dissipate regenerated energy during deceleration phases.
With the corresponding braking resistor, the system can provide a braking torque of up to approximately 170% for 60 seconds, depending on operating conditions.
The drive includes multiple internal protection systems designed to protect both the equipment itself and the connected motor against abnormal operating conditions.
These internal protections do not replace the external protection and isolation devices that must be installed according to the machine’s electrical design and Schneider Electric’s instructions.
The ATV320U11M2C includes a Category C2 EMC electromagnetic compatibility filter as standard. This feature helps meet the installation’s electromagnetic emission requirements when the drive is mounted and wired according to the manufacturer’s instructions.
The equipment complies with IEC/EN 61800-3 and IEC/EN 61800-5-1 standards applicable to variable speed electric drives.
This reference uses the compact ATV320C design, intended to reduce the space required inside panels and machine structures.
Its reduced width makes it easier to install several drives within the same panel, always respecting the ventilation distances and mounting conditions established by Schneider Electric.
The ATV320U11M2C uses forced fan cooling. Its cooling airflow is approximately 16 m³/h and the declared thermal dissipation reaches 61 W at 200 V and a switching frequency of 4 kHz.
The drive has an IP20 protection rating according to IEC 60529 and IEC 61800-5-1, so it is mainly intended for installation inside electrical cabinets or suitable enclosures.
With the corresponding conformity accessories, it can be configured as UL Type 1 under the conditions defined by Schneider Electric.
The Altivar 320 is designed to operate in demanding industrial environments. It can run without derating at temperatures between -10 °C and 50 °C. Between 50 and 60 °C, it can continue operating by applying the derating factor established by the manufacturer.
The Schneider Electric Altivar Machine ATV320C ATV320U11M2C 1.1 kW combines precise motor control, high overload capacity, industrial communications, and advanced safety functions in a compact design. Its 200-240 V single-phase supply makes installation easier in machines that need to control a three-phase motor from a compatible single-phase network.
The integration of Modbus, CANopen, C2 EMC filter, PID controller, braking chopper, and safety functions such as STO SIL 3 makes it a particularly complete solution for machine builders and automation professionals who need flexibility, precision, and industrial connectivity.