ATV930D11N4: A Field-Proven Drive for Evolving Industrial Demands

For decades, oil and gas operators relied on fixed-speed motors and mechanical throttling to control pumps, fans, and compressors. That approach wasted energy and subjected equipment to unnecessary wear. The Schneider Electric ATV930D11N4 variable speed drive represents the next step in that evolution. It is a three-phase, dual-rated unit for 380...480 V supplies, delivering 11 kW (15 HP) in normal duty and 7.5 kW (10 HP) in heavy duty. The drive includes a built-in dynamic brake transistor and integrated STO safety function rated SIL3 / Cat. PL e.

Key Features and Technical Specifications

• Supply voltage: 380...480 V three-phase (-15%/+10%), 50/60 Hz.
• Motor power (ND): 11 kW (15 HP), overload up to 120% for 60 s.
• Motor power (HD): 7.5 kW (10 HP), overload up to 150% for 60 s.
• Output frequency: 0.1...599 Hz.
• Operating temperature: -15 to +50 °C standard, derating up to 60 °C.
• Protection rating: IP21 / UL Type 1.
• Integrated safety: 1 STO function, SIL3 / Cat. PL e.
• Braking: Built-in dynamic brake transistor; external resistor required (12 Ω minimum).
• Dimensions (H×W×D): 409 x 171 x 236 mm; weight 7.700 kg.

The dual ND/HD rating allows one drive to serve two load profiles. In normal duty, it provides 23.5 A continuous output current. In heavy duty, it delivers 16.5 A with 150% transient overload for 60 s. This flexibility simplifies spare-parts planning for sites with mixed pump and compressor loads.

Applications in Oil and Gas Operations

Oil and gas facilities face harsh conditions, from temperature swings to corrosive atmospheres. This unit is engineered for these demanding environments. Its environmental class of 3C3 / 3S3 / 3M3 covers many industrial settings. Typical applications include:

• Centrifugal and positive-displacement pumps on gathering lines.
• Cooling tower fans and air-handling units.
• Compressors requiring precise torque control.

In each case, the drive's motor control supports asynchronous motors in open-loop or closed-loop vector mode. It also handles synchronous PM and reluctance motors, giving engineers flexibility when specifying new or replacement motors.

Installation and Commissioning Guidance

Proper installation supports long service life. Mount the drive vertically with 100 mm clearance above and below, and 10 mm in front. Power terminals require a tightening torque of 2.5 N·m for frame sizes 1-3. For altitude above 1000 m, derate the nominal current by 1% per additional 100 m up to 3000 m. The built-in Ethernet dual-port switch and Modbus serial port simplify integration into plant networks. An option slot accepts fieldbus modules for PROFINET, EtherNet/IP, Modbus TCP, and other protocols. When connecting to a fieldbus network, confirm that cables and any required gateway or connection module are compatible with your control system.

Maintenance and Reliability

This unit is built for reliability you can depend on. Its IP21 enclosure protects against dust and light moisture. The drive's thermal design requires 103 m3/h minimum air flow. In practice, this means keeping ventilation paths clear and checking fan operation during scheduled inspections. Because the drive includes a built-in braking chopper, external resistor connections should be inspected for tightness and corrosion. Operating within the -15 to +50 °C standard range avoids derating and extends component life. For sites with high humidity, the 5 to 95% non-condensing rating provides margin when cabinets are properly sealed.

Compatibility and Integration

The drive integrates with many control architectures. Built-in protocols include EtherNet/IP and Modbus TCP, plus Modbus RTU serial. For other networks, the option slot accepts modules for PROFINET, PROFIBUS DP V1, CANopen, DeviceNet, EtherCAT, and POWERLINK. Cybersecurity is addressed with Achilles Level 2 certification. Up to three additional I/O modules can be added for analog inputs, digital inputs, and relay outputs. This scalability allows the drive to adapt as control requirements grow.

Frequently Asked Questions

What is the input voltage range of This unit?

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

Can This unit operate at high ambient temperatures?

Yes, the standard operating temperature range is -15 to +50 °C. Derating is permitted up to 60 °C according to the catalog.

What safety function does This unit include?

It includes one Safe Torque Off (STO) function rated SIL3 / Cat. PL e per IEC 61508 and ISO 13849-1.

Is an external braking resistor required for This unit?

Yes, the built-in dynamic brake transistor requires an external braking resistor with a minimum resistance of 12 Ω.

What is the power rating of This unit?

The drive is dual-rated: 11 kW (15 HP) in normal duty with 120% overload for 60 s, and 7.5 kW (10 HP) in heavy duty with 150% overload for 60 s.

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

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