What the ATV930D15N4Z Delivers in Mission-Critical Installations

Schneider Electric ATV930D15N4Z is a three-phase variable speed drive from the Altivar Process ATV930 series, rated 15 kW (20 HP) in normal duty and 11 kW (15 HP) in heavy duty. It operates from a 380...480 V three-phase supply and includes a built-in braking unit, making it a rugged choice for oil and gas applications where reliability is paramount.

Engineers specifying this drive face three recurring pain points: maintaining motor control under fluctuating loads, protecting personnel and equipment in hazardous areas, and ensuring long-term operation in harsh environments. This unit addresses each with field-proven features and a comprehensive specification set.

How Does the Dual-Rated unit Handle Variable Torque and Constant Torque Loads?

One drive, two ratings: This unit is dual-rated for normal duty (ND) and heavy duty (HD) operation. This flexibility allows a single model to serve both variable torque applications like pumps and fans, and constant torque applications such as conveyors or mixers. The ND rating provides 15 kW with 120% overload for 60 seconds, while the HD rating delivers 11 kW with 150% overload for 60 seconds. Such overload capability is essential for starting high-inertia loads or handling temporary process upsets.

• Motor power (ND): 15 kW (20 HP), overload up to 120% for 60 s
• Motor power (HD): 11 kW (15 HP), overload up to 150% for 60 s
• Output frequency: 0.1...599 Hz
• Motor control: Asynchronous motor — standard constant torque, variable standard torque, optimized torque mode (open-loop sensorless flux vector and closed-loop with encoder); Synchronous PM motor and synchronous reluctance motor — open-loop and closed-loop vector control
• Switching frequency: 4 kHz nominal for U07N4...D45N4; 2.5 kHz for D55N4...C22N4 (automatic derating above nominal frequency)

This range of control modes ensures the drive can be optimized for the specific motor technology and load profile, reducing commissioning time and improving energy efficiency.

What Electrical Specifications Ensure Reliable Operation?

Electrical robustness is critical in oil and gas facilities where voltage sags and harmonic distortion are common. This unit is designed to withstand these conditions while delivering stable motor control.

• Supply voltage: 380...480 V three-phase (-15%/+10%), 50/60 Hz
• ND maximum input current: 27.0 A at 380 V; 23.3 A at 480 V
• ND apparent power: 19.4 kVA at 380 V
• ND maximum continuous output current In: 31.7 A at nominal switching frequency
• ND transient output current for 60 s: 38.0 A (120% of In)
• HD maximum input current: 20.6 A at 380 V; 18.1 A at 480 V
• HD apparent power: 15.0 kVA at 380 V
• HD maximum continuous output current In: 23.5 A at nominal switching frequency
• HD transient output current for 60 s: 35.3 A (150% of In)
• SCCR: 50 kA maximum per catalog table
• EMC filter: Category C2 integrated EMC filter

The integrated EMC filter reduces installation complexity and ensures compliance with EN/IEC 61800-3 category C2, while the high SCCR rating provides resilience against short-circuit events.

How Does This unit Perform in Harsh Oil & Gas Environments?

Environmental resilience is a core requirement for drives installed in remote wellheads, compressor stations, or processing plants. This unit is built for demanding environments, with an environmental class of IEC 60721-3-3 class 3C3 / 3S3 / 3M3 (except frame size 7) and an operating temperature range of 0 to +40 °C standard, with derating from 40 to 50 °C for cabinet integration versions. Storage temperature extends from -40 to +70 °C, and relative humidity tolerance is 5 to 95% non-condensing per IEC 60068-2-3.

• Operating temperature: 0 to +40 °C standard, derating from 40 to 50 °C
• Storage temperature: -40 to +70 °C
• Relative humidity: 5 to 95% non-condensing per IEC 60068-2-3
• Protection rating: IP20 (bottom power terminals IP00)
• Environmental class: IEC 60721-3-3 class 3C3 / 3S3 / 3M3 (except frame size 7)
• Altitude derating: up to 1000 m no derating; 1000-3000 m, derate nominal current by 1% per additional 100 m
• Power dissipation: 500 W total (ND) / 330 W total (HD) at nominal load
• Required minimum air flow: 215 m3/h
• Dimensions (H×W×D): 480 x 195 x 225.5 mm
• Installation clearance: 100 mm above and below, 10 mm front
• Terminal tightening torque: 2.5 N·m (Frame 1-3 power terminals)

These ratings ensure the drive can operate reliably in the demanding conditions typical of oil and gas installations, from arid deserts to humid coastal sites.

What Safety and Communication Features Are Integrated?

Safety and connectivity are not afterthoughts in This unit. It includes a Safe Torque Off (STO) function certified to SIL3 / Cat. PL e per IEC 61508 and ISO 13849-1, providing a dependable safety shutdown without removing power. For system integration, the drive offers built-in Ethernet dual-port switch and Modbus serial port, supporting EtherNet/IP and Modbus TCP protocols. An option slot accommodates fieldbus modules such as PROFINET, PROFIBUS DP V1, CANopen, DeviceNet, EtherCAT, and POWERLINK. Cybersecurity is addressed with Achilles Level 2 certification.

• Integrated safety: 1 STO (Safe Torque Off) function, SIL3 / Cat. PL e per IEC 61508 and ISO 13849-1
• Built-in ports: 1 Ethernet dual-port switch (RJ45); 1 Modbus serial port (RJ45)
• Protocols: EtherNet/IP and Modbus TCP (dual-port, built-in); Modbus RTU/TCP serial
• Communication expansion: 1 option slot for fieldbus modules (PROFINET, PROFIBUS DP V1, CANopen, DeviceNet, EtherCAT, POWERLINK)
• Cybersecurity: Achilles Level 2 certified
• Digital inputs: 8 inputs, 24 V DC, positive or negative logic
• Analog inputs: 3 inputs: 2 configurable as 0...10 V or 0/4-20 mA (with PTC/PT100/PT1000/KTY84 probe input); 1 configurable as 0...±10 V
• Analog outputs: 2 outputs configurable as 0...10 V or 0/4-20 mA
• Relay outputs: 3 outputs: 1 NO/NC + 2 NO
• Digital output: 1 assignable, configurable as Pulse Train Output (PTO)
• Safety function inputs: 2 inputs for STO function
• I/O expansion: Up to 3 additional I/O modules (analog in, digital in, relay out)

Integration Note: When connecting to fieldbus networks such as PROFINET or EtherNet/IP, an external gateway or connection module may be required. Confirm cable and gateway compatibility with PetroPartsOnline.

Why Choose This unit for Your Application?

Selecting the right drive for an oil and gas application involves balancing performance, safety, and environmental resilience. This unit offers a compelling combination: dual rating for flexible load handling, integrated STO for safety, robust environmental ratings, and versatile communication options. Its built-in braking unit and support for external braking resistors (15 Ω minimum) further simplify dynamic braking applications. For engineers seeking a dependable drive that can withstand the rigors of demanding environments, this model merits serious consideration.

Contact PetroPartsOnline for parts suited to your application's requirements.

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