Schneider Electric ATV320U07N4C Altivar Machine ATV320 0.75kW 380-500V 3P

1. Overview of the Schneider Electric ATV320U07N4C

Schneider Electric's ATV320U07N4C, part of the Altivar Machine ATV320 series, is a compact variable speed drive designed for 0.75 kW three-phase asynchronous or synchronous motors. Measuring only 158 × 105 × 143 mm and weighing 1.2 kg, it offers a wide output frequency range of 0.1–599 Hz. It features a built-in Class C2 EMC filter and STO (Safe Torque Off) function, and can be mounted directly on a DIN rail or machine frame, helping OEMs achieve high-performance motion control within a compact enclosure. The device utilizes sensorless vector control for smooth low-speed torque. It has a default carrier frequency of 4 kHz, which can be increased to 16 kHz, ensuring both quiet operation and high efficiency. A 4-digit, 7-segment display and a rotary knob on the front panel allow for one-touch parameter adjustment. Three analog inputs, six programmable digital inputs, and two relay outputs provide flexible compatibility with various sensors and host computers. The same RJ45 port is plug-and-play for Modbus/CANopen, and optional Profibus, EtherCAT, and other modules can be integrated into existing buses, reducing commissioning time by 30%.

2. Core Features:

1. Basic Electrical Specifications
Model: ATV320U07N4C
Series: Altivar Machine ATV320
Applicable Motors: Three-phase asynchronous or synchronous motors
Rated Power: 0.75 kW (1 HP)
Rated Input Voltage/Frequency: 380–500 V AC, 50/60 Hz, three-phase
Rated Output Current: 2.3 A (at 400 V)
Output Frequency Range: 0.1–599 Hz
Control Method: V/F, Sensorless Vector Control (SVC)
Carrier Frequency: 2–16 kHz, Automatic Thermal Regulation
Built-in Filter: Class C2 EMC filter, meeting IEC 61800-3 requirements
Braking Unit: Built-in braking transistor, supports direct connection of an external braking resistor
Safety Function: STO (Safe Torque Off) SIL2/PL d, achieving safe shutdown without an external contactor

2. Interfaces and Expansion
Communication Port: Single RJ45 plug-and-play port, supports Modbus/CANopen; optional Profibus-DP, EtherCAT, DeviceNet, and other communication cards
Analog Inputs: 2 AI (0–10 V or 4–20 mA switchable)
Analog Outputs: 1 AO (0–10 V or 4–20 mA selectable)
Digital Inputs: 6 DI (programmable, supports positive/negative logic)
Digital Outputs: 1 DO (open collector)
Relay Outputs: 2 C/O (1 fault, 1 programmable)
Faceplate: 4-digit 7-segment LED + knob, supports parameter copy/restore
Mounting: DIN rail or chassis screw mounting, IP20 enclosure

3. Main Functions and Typical Applications
Auto-Tuning: One-touch motor parameter auto-learning, low-speed torque up to 200% of rated torque under vector control
Energy-Saving Algorithm: Built-in energy-saving mode and PID regulator, driving fans and pumps to achieve 15–30% energy savings
Process Curve: Supports 5-stage multi-pump switching, 5-stage Point pump operating curves prevent blockage and dry running.
Predictive Maintenance: Built-in I²t calculation and capacitor life monitoring provide early warning of key component replacement cycles.
Typical Scenarios:
– Packaging Machinery: Precise speed control of 0.75 kW conveyor belt/film winding motors.
– Fans/Pumps: Energy-saving variable frequency drives for building HVAC and water treatment.
– Lithium Battery/Textiles: Tension/speed closed-loop control for winding and coating equipment.
– Food/Pharmaceuticals: Low-noise, high-hygiene conveyor line drives.

3. Product details pictures

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