Danfoss VLT 3022 175H1238 22 kW Variable Speed Drive
The Danfoss VLT 3022 175H1238 is a variable speed drive from the VLT 3000 series of frequency converters, engineered for precise control of three-phase AC motors in industrial applications. This 22 kW drive is designed to convert fixed frequency AC mains power into adjustable voltage and frequency output, enabling variable speed control of pumps, fans, compressors, and other industrial machinery. The VLT 3022 is part of Danfoss comprehensive range of AC drives known for their reliability, efficiency, and advanced control features.
Technical Specifications
The VLT 3022 is rated for 22 kW output power, suitable for driving standard three-phase induction motors of equivalent power rating. The drive operates with software versions 3.0 and 3.11, which cover VLT 3002 through 3022 models at 200/400/500 V, and VLT 3032 through 3052 at 400/500 V. The specific 175H1238 designation indicates a particular configuration of voltage rating, enclosure type, and optional features. The VLT 3000 series is designed for industrial environments requiring robust performance and reliable operation under demanding conditions.
VLT 3000 Series Features
The VLT 3000 series frequency converters are designed for general industrial applications requiring adjustable speed control of AC motors. These drives incorporate advanced control algorithms for precise speed regulation, torque control, and energy optimization. The VLT 3022 includes comprehensive protection features including overcurrent protection, overvoltage protection, undervoltage protection, overtemperature protection, and short-circuit protection. The drive is designed for easy installation and configuration, with intuitive parameter access and diagnostic capabilities for troubleshooting and maintenance.
Control Capabilities
The VLT 3022 provides multiple control modes including local control via keypad, remote control via analog and digital inputs, and fieldbus control for integration into automated systems. The drive features adjustable acceleration and deceleration times, configurable minimum and maximum frequency limits, and programmable digital and analog I/O for flexible integration with external control systems. The VLT 3000 series supports both V/Hz control for standard applications and vector control for applications requiring higher torque performance at low speeds.
Applications
The Danfoss VLT 3022 175H1238 is deployed in industrial applications requiring variable speed control of 22 kW motors. Typical applications include pump control for flow regulation in water treatment and irrigation systems, fan control for air handling and ventilation systems in HVAC applications, and compressor control for industrial gas and refrigeration systems. The drive is also used in conveyor systems in material handling, extruders in plastics processing, and any industrial application where adjustable motor speed provides energy savings and process control benefits compared to fixed-speed operation. The robust design and proven reliability of the VLT 3000 series make it suitable for continuous operation in demanding industrial environments.
