What the ATV930D45N4 Delivers in Harsh Process Environments

The Schneider Electric ATV930D45N4 is a three-phase variable speed drive from the Altivar Process ATV930 series. It operates on a 380...480 V supply and provides dual ND/HD ratings of 45 kW (60 HP) and 37 kW (50 HP) respectively. This drive is engineered for demanding environments where process continuity is mission-critical.

Key Specifications of This unit

• Supply voltage: 380...480 V three-phase (-15%/+10%), 50/60 Hz
• Motor power (ND): 45 kW (60 HP), 120% overload for 60 s
• Motor power (HD): 37 kW (50 HP), 150% overload for 60 s
• Operating temperature: -15 to +50 °C standard, derating up to 60 °C
• Output frequency: 0.1...599 Hz
• Protection rating: IP21/UL Type 1
• Integrated safety: STO 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)
• Dimensions (H×W×D): 673 x 226 x 274 mm
• Weight: 28.700 kg (63.273 lb)

Overcoming Thermal and Environmental Stress

Heat and contamination are persistent threats to drive reliability in oil and gas installations. This unit addresses these with an operating temperature range of -15 to +50 °C as standard, with derating available up to 60 °C. Additionally, its environmental class of IEC 60721-3-3 3C3 / 3S3 / 3M3 ensures resistance to harsh conditions. The IP21/UL Type 1 protection rating guards against dust and water ingress, while the required minimum air flow of 240 m3/h supports effective cooling. For installations at altitude, the drive operates without derating up to 1000 m, and derates nominal current by 1% per additional 100 m up to 3000 m.

Ensuring Electrical Reliability and Power Quality

Voltage fluctuations and short-circuit risks are common in industrial power networks. This unit is designed for a supply voltage of 380...480 V three-phase (-15%/+10%), accommodating typical variations. It features a built-in dynamic brake transistor, requiring an external braking resistor with a minimum of 10 Ω. The drive also includes a Category C2 EMC filter (for U07N4...D45N4), which helps mitigate electromagnetic interference. With a maximum prospective line short-circuit current (SCCR) of 50 kA, the drive supports robust system protection. Power dissipation is 1210 W total at ND rating and 903 W at HD rating, informing panel thermal design.

Simplifying Integration and Control

Modern process plants demand flexible connectivity. This unit includes an Ethernet dual-port switch and a Modbus serial port as standard. It supports EtherNet/IP and Modbus TCP protocols, enabling direct integration into plant networks. For other fieldbus systems, an option slot accepts modules for PROFINET, PROFIBUS DP V1, CANopen, DeviceNet, EtherCAT, and POWERLINK. The drive offers 8 digital inputs (24 V DC, positive or negative logic), 3 analog inputs, 2 analog outputs, and 3 relay outputs. An optional I/O expansion allows up to 3 additional modules. Cybersecurity is addressed with Achilles Level 2 certification, helping protect against network threats.

Application-Specific Selection Guidance

Choosing the correct drive rating is critical for reliable operation. This unit is dual-rated: in Normal Duty (ND) it delivers 45 kW with 120% overload for 60 s, suitable for variable torque loads like pumps and fans. In Heavy Duty (HD) it provides 37 kW with 150% overload for 60 s, ideal for constant torque loads such as conveyors and mixers. The built-in STO safety function, certified to SIL3 / Cat. PL e, supports safe machine stop without external contactors. For oil and gas applications, this drive is field-proven in demanding environments, offering reliability you can depend on.

Installation and Maintenance Best Practices

Proper installation extends drive life. Ensure clearances of 100 mm above and below and 10 mm in front (Frame 1-5). Terminal tightening torque for Frame 4 power terminals is 5 N·m. The drive requires an external braking resistor of at least 10 Ω if braking is needed. Regular maintenance should include checking fan operation, cleaning heatsinks, and verifying connections. The drive's environmental class and IP21 rating reduce maintenance frequency, but periodic inspection is recommended. For critical operations, keep spare units or consult PetroPartsOnline for reliable sourcing.

Frequently Asked Questions

What is the input voltage range of This unit?

This unit accepts a three-phase supply voltage of 380...480 V (-15%/+10%) at 50/60 Hz.

Can This unit operate in high-temperature environments?

Yes, the standard operating temperature range is -15 to +50 °C, with derating possible up to 60 °C.

What safety functions are integrated into This unit?

The drive includes a Safe Torque Off (STO) function certified to SIL3 / Cat. PL e per IEC 61508 and ISO 13849-1.

How does This unit communicate with control systems?

It has built-in Ethernet dual-port switch and Modbus serial port, supporting EtherNet/IP and Modbus TCP. An option slot allows additional fieldbus modules.

What is the minimum braking resistor required for This unit?

An external braking resistor of at least 10 Ω is required when using the built-in dynamic brake transistor.

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

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