What is the ATV930D75N4C Variable Speed Drive?

The Schneider Electric ATV930D75N4C is a three-phase variable speed drive from the Altivar Process ATV930 series. It delivers 75 kW (100 HP) in normal duty and 55 kW (75 HP) in heavy duty, operating from a 380...480 V supply. This wall-mounting model features an IP21/UL Type 1 enclosure and requires an external braking unit.

Engineered for harsh oil and gas environments, This unit combines rugged construction with advanced motor control. Its dual ND/HD rating allows one drive to serve both variable-torque and constant-torque loads, simplifying spare-parts strategy for mission-critical operations.

Key Technical Specifications

• Supply voltage: 380...480 V three-phase (-15%/+10%), 50/60 Hz
• Motor power (ND): 75 kW (100 HP), 120% overload for 60 s
• Motor power (HD): 55 kW (75 HP), 150% overload for 60 s
• Output frequency: 0.1...599 Hz
• Operating temperature: -15 to +50 °C standard, derating up to 60 °C
• Enclosure: IP21/UL Type 1 wall-mounting
• Integrated safety: STO function, SIL3 / Cat. PL e
• Built-in ports: Ethernet dual-port switch (RJ45); Modbus serial port (RJ45)
• Protocols: EtherNet/IP, Modbus TCP, Modbus RTU
• EMC filter: Category C3 integrated

The drive's operating temperature range of -15 to +50 °C suits many outdoor and unheated installations. Above 50 °C, derating is required up to 60 °C, as detailed in the catalog. The 380...480 V input voltage accommodates common industrial three-phase supplies, while the integrated EMC filter reduces installation complexity.

How Does the Dual ND/HD Rating Simplify Selection?

Many applications involve both variable-torque loads (fans, pumps) and constant-torque loads (conveyors, mixers). This unit is dual-rated, so a single model can be configured for either duty. In normal duty, it provides 75 kW with 120% overload for 60 seconds. In heavy duty, it delivers 55 kW with 150% overload for 60 seconds. This flexibility reduces inventory and ensures you have the right drive on hand for changing process requirements.

Applications in Oil and Gas

This unit is well-suited for oil and gas operations where reliability is paramount. Typical uses include controlling pumps on gathering lines, driving compressors in processing facilities, and operating fans in cooling towers. Its integrated STO safety function supports safe shutdown in emergency situations, while the rugged IP21 enclosure protects against dust and light moisture. The drive's ability to operate in temperatures from -15 to +50 °C makes it suitable for remote wellhead sites and unheated pump stations.

Installation and Environmental Considerations

Proper installation is critical for reliable operation. This unit requires a minimum clearance of 100 mm above and below and 10 mm in front for adequate airflow. The required minimum air flow is 295 m3/h. Power terminals for frame size 5 should be tightened to 25 N·m. The drive is designed for wall mounting and includes an integrated EMC filter, simplifying wiring. For altitudes above 1000 m, derate the nominal current by 1% per additional 100 m up to 3000 m.

Maintenance and Reliability

Regular maintenance extends drive life in demanding environments. Inspect cooling fans and heatsinks periodically for dust buildup, especially in oil and gas facilities where airborne contaminants are common. Verify terminal tightness annually and check for corrosion. This unit is built for demanding environments, with an environmental class of 3C3/3S3/3M3 (except frame size 7). Its Achilles Level 2 cybersecurity certification helps protect against network threats, ensuring reliability you can depend on.

Frequently Asked Questions

What is the input voltage range of This unit?

This unit accepts 380...480 V three-phase input with a tolerance of -15%/+10% at 50/60 Hz.

Can This unit operate without an external braking unit?

No, this model does not include a built-in brake chopper. An external braking unit is required for applications needing dynamic braking.

What is the operating temperature range of This unit?

The standard operating temperature range is -15 to +50 °C. Derating is required for operation up to 60 °C.

Does This unit support safety functions?

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

What communication protocols are built into This unit?

The drive includes EtherNet/IP, Modbus TCP, and Modbus RTU, with an option slot for additional fieldbus modules.

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

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