Atlas Copco Neos ARC-D130-S+ Variable Speed Inverter Drive

The Atlas Copco Neos ARC-D130-S+ is a high-performance variable speed inverter drive designed specifically for controlling electric motors in Atlas Copco compressor systems. With part number P1900545015, this drive offers precise speed regulation, soft start capabilities, and significant energy savings. It is part of the innovative Neos series, which is engineered for modern, energy-efficient compressed air installations.

Drive Technology

This drive uses advanced IGBT technology with a vector control algorithm to deliver smooth torque and speed control across the full operating range. It can handle both induction motors and permanent magnet synchronous motors, making it versatile for various compressor designs. The drive’s PWM switching frequency is optimized to reduce motor noise and harmonics, ensuring compliance with IEEE 519 harmonic standards.

Electrical Specifications

• Input Voltage: 380–480 VAC, 3-phase, 50/60 Hz

• Output Power: 130 kW (normal duty)

• Output Current: 260 A (continuous) / 300 A (overload 60s)

• Frequency Range: 0.5 to 400 Hz

• Efficiency: > 97% at rated load

• Protection Class: IP54 (cabinet mount)

• Control I/O: 6 digital inputs, 3 analog inputs, 2 relay outputs, 1 analog output

Energy Saving Features

By adjusting motor speed to match the actual air demand, the ARC-D130-S+ reduces energy consumption by 20–50% compared to fixed-speed operation. The drive incorporates a built-in energy optimizer that automatically calculates the most efficient operating point based on system pressure and flow. It also provides sleep/wake functionality to minimize idling losses.

Integration with Compressor Control

This inverter drive is designed to interface directly with Atlas Copco’s central controller via a dedicated communication bus (Modbus RTU or CANopen). It receives speed setpoints and sends back real-time data on motor current, voltage, and temperature. The drive also supports dry contact signals for remote start/stop and fault reset.

Protection and Diagnostics

The unit includes comprehensive protection features: overvoltage, undervoltage, overtemperature, overload, phase loss, and short-circuit protection. A built-in diagnostic log stores the last 100 fault events with time stamps, aiding in troubleshooting. The front panel has LED indicators for power, run, and fault status.

Installation and Commissioning

Installation requires a well-ventilated cabinet with adequate clearance for airflow. The drive is shipped with a quick-start guide and parameter list. Commissioning involves setting motor parameters, auto-tuning the motor, and configuring communication settings. Atlas Copco provides a configuration tool for advanced parameterization.

Durability and Environmental Considerations

Designed for industrial environments, the ARC-D130-S+ operates reliably at ambient temperatures up to 50 °C, with derating above 40 °C. Its coated circuit boards protect against moisture and dust. The drive is RoHS compliant and meets EU energy efficiency standards for motor drives.

Applications

This drive is used in rotary screw compressors, centrifugal compressors, and booster systems, particularly in applications with variable air demand such as automotive manufacturing, food processing, and pharmaceuticals. It is also suitable for retrofit projects to upgrade older fixed-speed compressors.

Benefits

Key benefits include lower electricity bills, reduced mechanical stress on the motor and compressor, quieter operation, and lower maintenance costs. The drive’s precise control also improves pressure stability, reducing process variations.

Conclusion

The Atlas Copco Neos ARC-D130-S+ variable speed inverter drive (P/N P1900545015) is a powerful and reliable solution for optimizing compressor performance and energy efficiency. Its advanced technology and seamless integration make it a valuable asset for any modern compressed air system.