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ATV71HD18N4

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ATV71HD18N4 is an 18.5kW/25HP variable speed drive for 380-480V 3-phase, with sensorless flux vector control, integrated EMC filter, STO safety, and IP20 protection.
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Technical specifications for ATV71HD18N4

  • Manufacturer:
    Schneider Electric
  • Part Number:
    ATV71HD18N4
  • Product Family:
    Altivar Process
  • Product Type:
    Variable Speed Drive
  • Motor Power (Normal Duty):
    18.5 kW / 25 HP @ 380-480V
  • Supply Voltage:
    380-480 VAC, 3-phase, -10% / +10%
  • Supply Frequency:
    50/60 Hz ±5%
  • Output Frequency Range:
    0.1 to 500 Hz
  • Nominal Switching Frequency:
    2.5 kHz (adjustable 2.5-8 kHz)
  • Speed Range:
    1:100 (open-loop), 1:1000 (closed-loop)
  • Speed Accuracy:
    ±0.01% (closed-loop), ±10% of slip (open-loop)
  • Torque Accuracy:
    ±15% (open-loop), ±5% (closed-loop)
  • Braking Torque:
    ≤150% with braking resistor
  • Relay Contact Rating:
    5A @ 250V AC resistive / 2A @ 250V AC inductive
  • Safety Function:
    STO (Safe Torque Off), response ≤100 ms
  • Communication Protocols:
    Modbus, CANopen
  • IP Protection:
    IP20
  • Operating Temperature:
    -10°C to +50°C (no derating)
  • Weight:
    5.54 kg
  • Estimated shipping dimensions:
    17.5x16x32cm
  • Tariff Code:
    8501310000
  • Country of origin:
    France
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Applications Operating Environment Monitoring & Control

Features:

  • upports sensorless flux vector control (SFVC) for asynchronous motors and synchronous permanent magnet motors.
  • Features Safe Torque Off (STO) conforming to ISO 13849-1 level d with ≤100ms response time.
  • Provides 2 analog inputs (bipolar ±10V and configurable 0-20mA/0-10V), 1 analog output, 7 discrete inputs (including PTC probe and safety input), and 2 relay outputs (5A rating).
The ATV71HD18N4 is engineered for applications requiring precise motor control, such as conveyors, hoists, and extruders. It offers sensorless flux vector control (SFVC) for asynchronous motors, delivering high torque accuracy (±15%) and speed regulation (±10% of slip) without an encoder, simplifying installation and reducing costs. For maximum precision, flux vector control (FVC) with encoder feedback provides ±0.01% speed accuracy and ±5% torque accuracy, with a speed range of 1:1000. The drive also supports synchronous permanent magnet motors, enabling energy-efficient operation.

The ATV71HD18N4 simplifies system design with built-in safety and communication functions. The Safe Torque Off (STO) function, conforming to ISO 13849-1 level d, provides a hardware-based safety path that prevents unexpected motor start, critical for maintenance safety. Response time is ≤100 ms from safety input to output removal. The drive can be integrated with Preventa XPS AC or XPS ATE safety modules for applications requiring category 3 or SIL2 per IEC/EN 61508, with wiring diagrams provided for emergency stop (category 0) and controlled stop (category 1) configurations.

The ATV71HD18N4 provides extensive I/O for flexible system integration without additional modules. Two analog inputs are available: AI1 accepts bipolar differential voltage (±10V) with 11-bit plus sign resolution, while AI2 is software-configurable for current (0-20mA, 242Ω impedance) or voltage (0-10V, 30kΩ impedance) with 11-bit resolution. One analog output (AO1) is software-configurable for current (0-20mA) or voltage (0-10V) with 10-bit resolution. Seven discrete inputs include LI1-LI5 (24V DC, programmable), LI6 (configurable as logic input or PTC probe), and PWR safety input for STO function.

The ATV71HD18N4 SCHNEIDER Variable Speed Drive may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

SCHNEIDER ATV71HD18N4 Variable Speed Drive Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
SCHNEIDER ATV71HD18N4 Variable Speed Drive Specs

General

  • Manufacturer SCHNEIDER
  • Model ATV71HD18N4
  • Condition New Original ready stock
  • Product Family ATV71HD11N4,ATV71HD15N4Z,ATV71HC25N4
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Heavy Hoisting: Ideal for cranes, hoists, and gantry travel systems requiring high starting torque and precise brake control.
  • Material Handling: Powers high-load conveyors, stackers, and automated sorting systems.
  • Industrial Mixing: Drives high-viscosity mixers, extruders, and crushers in chemical or food processing.
  • Pumps & Fans: Manages heavy-duty industrial centrifugal fans, submersibles, and high-pressure water pumps.
  • Temperature: Standard range is -10°C to +50°C without derating. Up to +60°C is allowed with a derating factor.
  • Humidity: Operates in 5% to 95% relative humidity, provided there is no condensation or dripping water.
  • Altitude: No derating required up to 1000 meters. Derate by 1% for every additional 100 meters up to 3000 meters.
  • Protection Rating: Rated at IP20, designed for installation inside clean, well-ventilated industrial control cabinets.
  • Graphic Terminal: Equipped with a multi-language graphic display for real-time monitoring, diagnostics, and parameter backup.
  • Embedded Protocols: Features integrated Modbus and CANopen ports for direct connection to PLCs and automation loops.
  • Option Cards: Supports plug-in communication modules including Profibus DP, DeviceNet, EtherNet/IP, and Modbus TCP.
  • I/O & Safety: Built-in programmable digital/analog inputs and outputs, paired with a dedicated Safe Torque Off (STO) function.
Description
The ATV71HD18N4 is a high-performance variable speed drive from the Altivar 71 series, designed for complex industrial machines requiring precise motor control. It delivers 18.5kW (25HP) normal duty from a 380-480V three-phase supply. The ATV71HD18N4 features sensorless flux vector control (SFVC) for asynchronous motors and supports synchronous permanent magnet motors. 

The ATV71HD18N4 includes comprehensive I/O capabilities: 2 analog inputs (one bipolar ±10V, one configurable 0-20mA/0-10V), 1 analog output, 7 discrete inputs, and 2 relay outputs. The integrated Safe Torque Off (STO) function conforms to ISO 13849-1 level d with response time ≤100ms. 

Environmental robustness of the ATV71HD18N4 includes operating temperature range -10°C to +50°C without derating, altitude capability up to 3000m with 1% derating per 100m above 1000m. It complies with EN 61800-3 category C3 EMC standards and carries CSA, UL, C-Tick, GOST, and NOM 117 certifications.

The ATV71HD18N4 supports optional communication and I/O extension cards including Profibus DP, DeviceNet, Ethernet/IP, and "Controller Inside" programmable cards. It provides motor protection features including thermal protection, phase break detection, overcurrent protection, and DC bus overvoltage protection.
Alternative Names
ATV71HD75N4 ATV71HD75N4Z ATV71HC16N4 ATV71HD22N4Z ATV71HD30N4Z ATV71HC25N4 ATV71HD15N4Z ATV71HD11N4
Technical notes
The ATV71HD18N4 is an 18.5kW/25HP IP20 drive for complex machines. Features sensorless flux vector control for asynchronous motors and supports synchronous motors. Includes 2 AI, 1 AO, 7 DI, 2 relays, Modbus, and CANopen. STO safety ≤100ms. Operates -10°C to +50°C, 3000m altitude. Integrated C3 EMC filter. Weight 15kg. Certified CSA, UL, Green Premium.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What types of motors can ATV71HD18N4 control?
The ATV71HD18N4 controls both asynchronous (induction) motors and synchronous (permanent magnet) motors. It offers sensorless flux vector control (SFVC) for open-loop applications and flux vector control (FVC) with encoder feedback for closed-loop precision.
What communication protocols does ATV71HD18N4 support?
The drive features built-in Modbus (RJ45 and terminal) and CANopen (SUB-D 9) protocols. Optional cards add Profibus DP, DeviceNet, Ethernet/IP, Modbus TCP, Fipio, and Interbus-S communication.
What safety function is integrated into ATV71HD18N4?
The ATV71HD18N4 includes Safe Torque Off (STO) conforming to ISO 13849-1 level d, with response time ≤100 ms. It can be integrated with Preventa XPS AC or XPS ATE safety modules for category 3 or SIL2 applications.
What is the maximum cable length for ATV71HD18N4?
Maximum motor cable length is 100m shielded or 200m unshielded. For encoder feedback, standardized coaxial cable RG174/U is required, maximum length 15m with shielding earthed.

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