What Makes the ATV930D22N4Z a Dependable Choice for Oil & Gas Applications?

The ATV930D22N4Z is a three-phase variable speed drive from Schneider Electric's Altivar Process ATV930 series. It delivers 22 kW in normal duty and 18.5 kW in heavy duty, operating from a 380...480 V supply. This cabinet integration version carries an IP20 rating and a built-in braking unit, making it a rugged and field-proven solution for demanding environments.

Engineers in oil and gas face extreme temperatures, vibration, and corrosive atmospheres. This unit is engineered to withstand these conditions, with an environmental class of 3C3/3S3/3M3 and an operating temperature range of 0 to +40 °C without derating. Its integrated EMC filter (Category C2) reduces installation complexity and ensures reliable performance in mission-critical operations.

Key Technical Specifications of This unit

• Supply voltage: 380...480 V three-phase (-15%/+10%), 50/60 Hz
• Motor power (ND): 22 kW (30 HP), 120% overload for 60 s
• Motor power (HD): 18.5 kW (25 HP), 150% overload for 60 s
• Output frequency: 0.1...599 Hz
• Operating temperature: 0 to +40 °C standard, derating up to 50 °C
• Protection rating: IP20 (bottom power terminals IP00)
• Integrated safety: STO function, SIL3 / Cat. PL e
• Communication: Built-in Ethernet (EtherNet/IP, Modbus TCP) and Modbus serial
• I/O: 8 digital inputs, 3 analog inputs, 2 analog outputs, 3 relay outputs
• Dimensions (H×W×D): 480 x 195 x 225.5 mm

These specifications ensure the drive can handle the rigorous demands of oil and gas operations, from pump control to compressor drives. The dual ND/HD rating provides flexibility, allowing engineers to select the appropriate overload capacity for their application.

How Does This unit Address Common Failure Modes?

Variable speed drives in oil and gas environments often face overheating, electrical noise, and mechanical stress. This unit addresses these through its integrated Category C2 EMC filter, which minimizes electromagnetic interference. The built-in braking transistor and required external resistor (minimum 15 Ω) manage regenerative energy, reducing wear on mechanical brakes.

Additionally, the drive's environmental class 3C3/3S3/3M3 ensures resistance to humidity, vibration, and temperature fluctuations. The operating temperature range of 0 to +40 °C without derating means reliable performance even in hot climates, while the storage temperature of -40 to +70 °C allows for safe transportation and storage.

Applications and Use Cases

This unit is suited for a wide range of oil and gas applications. Its heavy-duty rating makes it ideal for positive displacement pumps and compressors that require high starting torque. In normal duty, it efficiently controls centrifugal pumps and fans, optimizing energy consumption.

With its built-in Ethernet and Modbus ports, the drive integrates seamlessly into SCADA systems for remote monitoring and control. The optional fieldbus modules (PROFINET, PROFIBUS DP, EtherNet/IP, etc.) provide additional connectivity for plant-wide automation. For safety-critical applications, the STO function ensures safe torque off, meeting SIL3 requirements.

Installation and Setup Guidance

Proper installation is crucial for reliable operation. This unit requires a minimum clearance of 100 mm above and below, and 10 mm in front, to ensure adequate airflow (215 m3/h). Terminal tightening torque for power terminals is 2.5 N·m. The drive is designed for cabinet mounting, and its IP20 rating protects against dust and touch hazards.

When integrating into a network, note that fieldbus communication may require an external gateway or connection module. Confirm cables and gateways with PetroPartsOnline to ensure compatibility.

Maintenance and Reliability

Regular inspection of the drive's cooling system and connections is recommended. The integrated EMC filter and robust design reduce the need for frequent maintenance. The drive's power dissipation is 670 W in normal duty, so ensure the cabinet ventilation is adequate. Following the installation manual NHA80932 for maintenance intervals will help maximize service life.

Frequently Asked Questions

What is the operating temperature range of This unit?

This unit operates from 0 to +40 °C without derating. Above 40 °C, derating is required up to 50 °C, as per catalog p.17.

Can This unit be used with synchronous motors?

Yes, the drive supports synchronous PM motors and synchronous reluctance motors in open-loop and closed-loop vector control, as detailed in the catalog p.10-12.

What is the minimum external brake resistor for This unit?

The minimum external brake resistor is 15 Ω, per installation manual NHA80932 p.90-91.

Does This unit include a safety function?

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 has built-in Ethernet (EtherNet/IP and Modbus TCP) and Modbus serial ports. Additional fieldbus modules are available as options.

For parts suited to your application's requirements, contact PetroPartsOnline.

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