ATV930C11N4C: A Rugged Drive for Mission-Critical Pump and Fan Control

When a midstream operator needed to replace a failing drive on a critical booster pump, the challenge was clear: maintain process uptime while upgrading to a drive that could handle harsh conditions and precise motor control. The Schneider Electric ATV930C11N4C variable speed drive answered that call, delivering 110 kW (150 HP) in normal duty and 90 kW (125 HP) in heavy duty from a 380...480 V three-phase supply. Built for demanding environments, this Altivar Process ATV930 series drive combines robust hardware with advanced motor control algorithms.

Key Technical Specifications

• Supply voltage: 380...480 V three-phase (-15%/+10%), 50/60 Hz
• Motor power (ND): 110 kW (150 HP), overload up to 120% for 60 s
• Motor power (HD): 90 kW (125 HP), overload up to 150% for 60 s
• Output frequency: 0.1...599 Hz
• Operating temperature: 0 to +40 °C standard, derating from 40 to 50 °C
• Enclosure: IP00, designed for cabinet mounting; conformity kit required for IP21/UL Type 1
• Dimensions (H×W×D): 852 x 320 x 393 mm
• Weight: 82.000 kg (180.779 lb)

These parameters highlight the drive's suitability for oil and gas applications where reliability and precise control are paramount.

How Does This unit Handle Harsh Oil & Gas Environments?

The drive is engineered to withstand challenging conditions. Its environmental class is IEC 60721-3-3 class 3C3 / 3S3 / 3M3 (except frame size 7), ensuring resistance to chemicals, sand, and mechanical stress. The integrated Category C3 EMC filter minimizes electromagnetic interference, while the IP00 enclosure requires installation in a protective cabinet, often necessary in industrial settings. For reliable operation, the operating temperature range is 0 to +40 °C without derating, with derating up to 50 °C. The drive also features an Achilles Level 2 cybersecurity certification, safeguarding against network threats in connected operations.

Integration and Communication Features

This unit offers versatile connectivity. Built-in ports include one Ethernet dual-port switch (RJ45) and one Modbus serial port (RJ45). It supports EtherNet/IP and Modbus TCP protocols natively, with an option slot for fieldbus modules such as PROFINET, PROFIBUS DP V1, CANopen, DeviceNet, EtherCAT, and POWERLINK. For I/O, it provides 8 digital inputs (24 V DC, positive or negative logic), 3 analog inputs, 2 analog outputs, and 3 relay outputs. An optional expansion allows up to 3 additional I/O modules. The integrated STO (Safe Torque Off) function meets SIL3 / Cat. PL e per IEC 61508 and ISO 13849-1, enhancing safety in critical processes.

Installation and Maintenance Best Practices

Proper installation is key to longevity. Ensure minimum clearance of 250 mm above and below and 100 mm in front (Frame 6). Terminal tightening torque is 27 N·m for main and 13.5 N·m for control. The drive requires a minimum air flow of 600 m3/h for cooling. Regular maintenance should include inspecting cooling fans and cleaning air filters, as dust buildup can reduce efficiency. The drive's power dissipation is 2638 W in ND and 2087 W in HD, so adequate cabinet ventilation is essential. For harsh environments, consider conformal coating or additional filtering.

Frequently Asked Questions

What is the supply voltage requirement for This unit?

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

Can This unit operate without an external braking unit?

No, This unit does not include a built-in braking chopper; an external braking unit is required for dynamic braking applications.

What is the operating temperature range of This unit?

The drive operates from 0 to +40 °C without derating, and up to 50 °C with derating as per catalog specifications.

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?

It has built-in EtherNet/IP and Modbus TCP via dual-port Ethernet, plus a Modbus serial port. Additional fieldbus modules can be added via the option slot.

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

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