Schneider Electric ATV320U40N4C — 4kW Compact Variable Speed Drive | Altivar 320 Series
Engineering Background
The Altivar 320 (ATV320) is Schneider Electric’s dedicated variable speed drive platform engineered for machine builders requiring a compact, high-performance solution. Designed to IEC/EN 61800-5-1 safety standards, the ATV320 series integrates advanced motor control algorithms with a communication-ready architecture, making it the preferred choice for OEM machine integration across conveyor, pump, fan, compressor, and handling applications.
Product Positioning
The ATV320U40N4C is a 4kW (5.4HP), 3-phase 380–500V AC input drive in a compact book-mount enclosure with an integrated EMC filter (Class C2). It is purpose-built for embedded machine control environments where panel space, harmonic compliance, and fieldbus connectivity are critical procurement criteria. Konmask.com supplies this unit as a verified, traceable industrial component for B2B procurement engineers.
Complete Technical Specifications
- Part Number: ATV320U40N4C
- Series: Altivar 320 (ATV320)
- Manufacturer: Schneider Electric
- Motor Power (kW): 4 kW (5.4 HP)
- Supply Voltage: 3-phase, 380–500 V AC ±10%
- Supply Frequency: 50/60 Hz ±5%
- Output Frequency Range: 0.5–500 Hz
- Rated Input Current: 10.4 A (400V)
- Rated Output Current: 9.5 A
- Switching Frequency: 2–16 kHz (adjustable)
- Control Method: V/f, Sensorless Flux Vector (SVC), Closed-loop Flux Vector (FVC)
- EMC Filter: Integrated, Class C2 (EN 61800-3)
- Enclosure Rating: IP20 (book-mount / panel installation)
- Ambient Operating Temperature: -10°C to +50°C (derating above 40°C)
- Storage Temperature: -25°C to +70°C
- Relative Humidity: 5–95% non-condensing
- Altitude: Up to 1000 m without derating
- Braking: Dynamic braking transistor integrated
- Digital Inputs: 6 × DI (24V logic)
- Analog Inputs: 2 × AI (0–10V / 0–20mA)
- Relay Outputs: 2 × relay (R1, R2)
- Analog Output: 1 × AO (0–10V / 0–20mA)
- Communication Ports: RJ45 Modbus RTU / CANopen (native); optional fieldbus cards: PROFIBUS DP, EtherNet/IP, PROFINET, DeviceNet
- Display / HMI: Integrated 7-segment LED display; compatible with SoMove PC software
- Certifications: CE, UL, cUL, RoHS, EAC
- Dimensions (H×W×D): 270 × 90 × 156 mm (book-mount)
- Weight: ~3.0 kg
- Mounting: DIN rail or panel screw mount
Proven Application Environments
- Conveyor & Material Handling: Precise speed ramp control with configurable acceleration/deceleration profiles; supports multi-motor coordination via Modbus RTU.
- Pump & Fan Control: PID loop control with sleep/wake function for energy optimization in HVAC and water treatment systems.
- Packaging Machinery: High-dynamic torque response under SVC mode; suitable for intermittent duty cycles with frequent start/stop.
- Compressor Drives: Stable low-speed torque delivery; integrated motor thermal protection (I²t) eliminates need for external overload relay.
- Textile & Printing Machines: Fine frequency resolution (0.01 Hz) for tension-sensitive web handling applications.
- Crane & Hoist (light duty): Integrated braking transistor supports external braking resistor for regenerative load management.
Engineering Advantages
- Compact Book-Mount Form Factor: 90 mm width enables high-density panel layouts; side-by-side mounting without derating (to 40°C).
- Integrated EMC Filter (C2): Eliminates external filter BOM cost and panel wiring complexity; compliant with EN 61800-3 for industrial environments.
- Dual Native Fieldbus: Modbus RTU and CANopen on a single RJ45 port — no additional communication card required for most machine PLC architectures.
- STO (Safe Torque Off) — IEC 62061 SIL2 / ISO 13849-1 PLd: Functional safety input eliminates need for external safety contactor in many machine safety circuits.
- Motor Auto-Tuning: Static and dynamic auto-tune routines optimize flux vector performance without manual parameter calculation.
- Energy Savings Mode: Automatic voltage optimization under partial load reduces motor losses by up to 30% in fan/pump applications.
System Architecture & Signal Flow
The ATV320U40N4C operates as a 3-phase AC-DC-AC converter. The rectifier stage converts 380–500V AC mains to a regulated DC bus (~540–700V DC). The IGBT inverter stage synthesizes a variable-frequency, variable-voltage output via PWM modulation. The integrated DC bus choke reduces harmonic distortion (THDi) and extends capacitor life. The control board interfaces with the machine PLC via digital I/O or fieldbus, executing speed/torque references in real time. The integrated EMC filter suppresses conducted emissions on the supply side, ensuring compliance without external components.
Recommended system topology: Upstream MCCB (motor circuit breaker) → Line reactor (optional, >100m cable) → ATV320U40N4C → Motor cable (shielded, ≤50m) → Induction or PM motor.
Sourcing & Quality Verification
- Units supplied by Konmask.com are sourced from authorized Schneider Electric distribution channels or verified surplus with full traceability documentation.
- Each unit undergoes incoming inspection: label verification (date code, country of origin), packaging integrity check, and power-on functional test where applicable.
- Firmware version and serial number are recorded at receipt. Certificates of conformity (CoC) available upon request.
- Anti-counterfeit verification: holographic label, QR code authentication via Schneider Electric’s mySchneider portal.
Procurement Process
- Step 1 — Inquiry: Submit your BOM or part number to support@konmask.com or via the product page. Include required quantity and delivery timeline.
- Step 2 — Quote: Konmask issues a formal quotation within 1 business day including unit price, lead time, and shipping options (DHL Express / sea freight).
- Step 3 — Order Confirmation: Purchase order or Shopify checkout accepted. Pro-forma invoice issued for T/T wire transfer or credit card payment.
- Step 4 — Shipment: Units shipped with commercial invoice, packing list, and CoC. Tracking number provided within 24 hours of dispatch.
- Step 5 — After-Sales: 12-month warranty on verified new units. Technical support available via email and WhatsApp: +0086 19859288691.
Technical FAQ
Q: Can the ATV320U40N4C drive a permanent magnet (PM) synchronous motor?
A: Yes. The ATV320 supports PM motor control in open-loop SVC mode. Motor parameters must be entered manually or via auto-tune with the motor at standstill.
Q: Is an external EMC filter required?
A: No. The “C” suffix in ATV320U40N4C denotes an integrated Class C2 EMC filter. No external filter is required for standard industrial installations with cable lengths ≤25m.
Q: What fieldbus options are available beyond native Modbus/CANopen?
A: Optional communication cards support PROFIBUS DP (VW3A3607), EtherNet/IP + Modbus TCP (VW3A3616), PROFINET (VW3A3627), and DeviceNet (VW3A3609). Cards are hot-swappable with the drive powered down.
Q: What is the maximum motor cable length?
A: With the integrated EMC filter active, Schneider Electric specifies ≤25m shielded cable for C2 compliance. With an external dV/dt filter, cable lengths up to 100m are achievable.
Q: Does the drive support Safe Torque Off (STO) without an additional safety module?
A: Yes. STO is a native hardware function on the ATV320 control board, rated SIL2 / PLd. It requires only a 24V safety relay or safety PLC output — no additional module is needed.
Q: What is the difference between ATV320U40N4 and ATV320U40N4C?
A: The “C” suffix indicates the integrated EMC filter variant. The ATV320U40N4 (without C) requires an external EMC filter for CE compliance in most installations.
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