Schneider Electric ATV61 Series Variable Speed Drives – ATV61HD37N4

Technical Dossier

Product Details And Specifications

Schneider Electric ATV61 Series Technical Notes

The Schneider Electric ATV61 series is a line of variable speed drives (VSDs) engineered for demanding pump and fan applications in heavy industry. Deployed across chemical processing plants, nuclear power stations, oil refineries, water treatment facilities, and offshore platforms, the ATV61 occupies a critical position in global industrial automation infrastructure. Its three-phase AC drive architecture supports motor power ratings from 0.75 kW to 800 kW, making it one of the most scalable drive families in the Schneider Electric Altivar portfolio. The ATV61 is designed for continuous-duty environments where process reliability, harmonic compliance, and communication interoperability are non-negotiable requirements.

The Evolution of ATV61 Architecture

The ATV61 series succeeded the ATV58 and ATV68 platforms, consolidating pump/fan-optimized drive functionality into a unified hardware architecture. Early ATV61 units (circa 2004–2008) shipped with integrated Modbus RTU and CANopen communication as standard, with optional fieldbus cards for Profibus DP, DeviceNet, and Ethernet/IP. The drive's control board architecture uses a dedicated DSP for motor flux vector control, enabling sensorless speed regulation without encoder feedback.

From 2009 onward, Schneider introduced enhanced EMC filter options and extended the power range to 800 kW for high-voltage cabinet configurations. The ATV61 platform also introduced the SoMove PC configuration tool, replacing legacy terminal-based commissioning. Compatibility with legacy ATV58 parameter sets was maintained through software migration utilities, reducing retrofit engineering time.

ATV61 Full Catalog & Functionalities (SKU List)

The following SKUs represent the core ATV61 product range, organized by power class and enclosure type. All ratings are for 400V/480V three-phase input unless otherwise noted.

ATV61HD37N4: 37 kW / 50 HP, 400V 3-phase, IP20 enclosed drive, standard pump/fan duty.
ATV61HD45N4: 45 kW / 60 HP, 400V 3-phase, IP20, integrated EMC filter class C2.
ATV61HD55N4: 55 kW / 75 HP, 400V 3-phase, IP20, flux vector control without encoder.
ATV61HD75N4: 75 kW / 100 HP, 400V 3-phase, IP20, extended overload capacity 110% for 60s.
ATV61HD90N4: 90 kW / 125 HP, 400V 3-phase, IP20, dual fan cooling, front-access terminals.
ATV61HC11N4: 110 kW / 150 HP, 400V 3-phase, IP20, cabinet-mount configuration.
ATV61HC13N4: 132 kW / 200 HP, 400V 3-phase, IP20, integrated DC bus choke.
ATV61HC16N4: 160 kW / 215 HP, 400V 3-phase, IP20, suitable for parallel pump control.
ATV61HC20N4: 200 kW / 270 HP, 400V 3-phase, IP20, high-inertia load compensation.
ATV61HC25N4: 250 kW / 335 HP, 400V 3-phase, IP20, multi-motor configuration support.
ATV61HC31N4: 315 kW / 425 HP, 400V 3-phase, IP20, active front end option available.
ATV61HC40N4: 400 kW / 540 HP, 400V 3-phase, IP20, parallel drive bus architecture.
ATV61HD37N4Z: 37 kW, 400V, IP54 enclosed variant, outdoor/washdown-rated enclosure.
ATV61HD55N4Z: 55 kW, 400V, IP54 enclosed variant, corrosion-resistant coating option.
ATV61HD75N4Z: 75 kW, 400V, IP54 enclosed variant, integrated bypass contactor option.
ATV61HD37Y: 37 kW, 690V 3-phase input, for high-voltage distribution systems.
ATV61HD55Y: 55 kW, 690V 3-phase, offshore and marine-grade applications.
ATV61HD75Y: 75 kW, 690V 3-phase, refinery and petrochemical plant duty.

Quality Control for the ATV61 Range

Each ATV61 unit processed by DriveKNMS undergoes a structured test protocol prior to dispatch. Power section testing includes DC bus capacitor ESR measurement, IGBT switching waveform verification under resistive load, and gate driver signal integrity checks. Control board validation covers parameter memory read/write cycles, analog I/O calibration (0–10V and 4–20mA channels), and digital I/O functional verification across all 6 logic inputs and 3 relay outputs.