Is Your Variable Speed Drive Ready for the Demands of Oil & Gas Operations?

Downtime in oil and gas processing often traces back to electrical equipment that cannot handle the environment. The Schneider Electric ATV930D55N4C is a three-phase variable speed drive built for demanding environments. It delivers 55 kW (75 HP) in normal duty and 45 kW (60 HP) in heavy duty, with a 380...480 V three-phase supply range.

This Altivar Process ATV930 model is a wall-mounting IP21/UL Type 1 drive without a built-in braking unit. It is dual-rated for normal duty (ND) and heavy duty (HD) applications, giving engineers flexibility in sizing for pumps, compressors, and other mission-critical loads.

Key Specifications of the ATV930D55N4C Drive

The following parameters define the operating envelope of this drive. All values are taken from the official Schneider Electric catalog and installation manual.

• Supply voltage: 380...480 V three-phase (-15%/+10%), 50/60 Hz.
• Motor power (ND): 55 kW (75 HP) with 120% overload for 60 s.
• Motor power (HD): 45 kW (60 HP) with 150% overload for 60 s.
• Operating temperature: -15 to +50 °C standard, derating up to 60 °C.
• Storage temperature: -40 to +70 °C.
• Output frequency: 0.1...599 Hz.
• Enclosure: IP21/UL Type 1 wall-mounting.
• Dimensions (H×W×D): 922 x 290 x 325.5 mm.
• Weight: 56.500 kg (124.561 lb).
• Integrated safety: 1 STO function, SIL3 / Cat. PL e.

Because the drive is dual-rated, you can select the normal duty rating for variable-torque loads like centrifugal pumps. For constant-torque loads such as positive displacement compressors, the heavy duty rating provides 150% overload capability for 60 seconds.

How Does This unit Handle Harsh Oil & Gas Environments?

Field-proven reliability starts with environmental protection. This drive carries an IP21/UL Type 1 rating for wall mounting, which suits indoor installations in pump houses and compressor stations. The environmental class is IEC 60721-3-3 class 3C3 / 3S3 / 3M3, covering humidity, vibration, and temperature stressors common in industrial settings.

Operating temperature is a critical factor. This unit operates from -15 to +50 °C without derating. Above 50 °C, derating is permitted up to 60 °C per the catalog. For high-altitude sites, derating applies above 1000 m: reduce nominal current by 1% for every additional 100 m, up to 3000 m.

Power supply fluctuations are another challenge. The drive accepts 380...480 V three-phase with -15%/+10% tolerance, accommodating typical grid variations. An integrated Category C3 EMC filter helps limit conducted emissions. The drive also holds Achilles Level 2 cybersecurity certification, which matters as industrial networks become more connected.

What Inputs and Outputs Are Available for System Integration?

This unit provides extensive integrated I/O for demanding control schemes. It includes 8 digital inputs (24 V DC, positive or negative logic) and 3 analog inputs. Two analog inputs are configurable as 0...10 V or 0/4-20 mA with probe input support; the third accepts 0...±10 V. For outputs, there are 2 analog outputs (0...10 V or 0/4-20 mA), 3 relay outputs (1 NO/NC + 2 NO), and 1 assignable digital output configurable as pulse train output.

For safety functions, 2 dedicated inputs support the STO function. If additional I/O is needed, up to 3 optional I/O modules can be added. Communication is handled by a built-in Ethernet dual-port switch (RJ45) and a Modbus serial port (RJ45). EtherNet/IP and Modbus TCP are supported natively. A single option slot accepts fieldbus modules such as PROFINET, PROFIBUS DP V1, CANopen, DeviceNet, EtherCAT, or POWERLINK.

Integration Note: Wiring into fieldbus networks may require an external gateway or connection module. Confirm cables and gateways with your supplier before commissioning.

Installation and Maintenance Guidance

Proper installation extends drive life. Mount This unit vertically with at least 100 mm clearance above and below, and 10 mm in front. Terminal tightening torque for Frame 5 power terminals is 25 N·m. Ensure the required minimum air flow of 295 m3/h is available; the drive dissipates 1228 W in normal duty or 919 W in heavy duty at nominal load.

For maintenance, inspect the drive periodically for dust buildup and cooling fan operation. In oil and gas environments, check enclosure seals and cable entries for integrity. Follow the manufacturer's safety manual for all safety-related functions.

Frequently Asked Questions

What is the primary application of This unit?

This unit is a three-phase variable speed drive for 380...480 V supply. It suits pump, fan, and compressor applications in oil and gas processing where dual ND/HD ratings and integrated safety are required.

Can This unit operate at high temperatures?

Yes. Standard operating temperature is -15 to +50 °C. Derating allows operation up to 60 °C, as detailed in the catalog.

Does This unit include a braking unit?

No. This model is a wall-mounting drive without a built-in braking unit. An external braking unit is required for braking applications.

What communication protocols are built in?

Built-in protocols are EtherNet/IP and Modbus TCP via a dual-port Ethernet switch, plus Modbus serial. Additional fieldbus modules can be added through the option slot.

What is the supply voltage range for This unit?

The drive accepts 380...480 V three-phase (-15%/+10%) at 50/60 Hz.

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

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