ABB 3AUA0000234207 LV AC Micro Drive - UL 4X / IP66
Part Number: 3AUA0000234207
Quick Summary
ACS255 drive is a LV AC micro drive designed for precise control of small to mid-scale machines such as augers, mixers, pumps, fans, and conveyors. This ABB solution helps operators overcome slow starts, torque fluctuations, and unreliable control in harsh environments. The unit features UL Type 4X / IP66 enclosure protecting against corrosion and washdown exposure, along with sensorless vector control for both AC induction and PM motors, and a user-friendly keypad for quick setup. With V/Hz control and variable/constant torque profiles, it delivers smooth performance across varying loads. Embedded Modbus-RTU enables real-time PLC communication, improving visibility, remote diagnostics, and preventative maintenance scheduling. The combination of rugged hardware and electronic drive intelligence supports higher uptime, lower energy use, and easier compliance with industrial safety standards.
Product Information
Extended Description
3AUA0000234207 ABB: The ACS255 drive comes in several variants ensuring seamless integration into machines. The UL (NEMA) TYPE 4X / IP66 ACS255 is constructed with corrosion resistant materials for durability and increased survival in wet, dirty, or washdown applications indoors or outdoors. Common application includes augers, mixers, pumps, fans and conveyors. The key features include an integrated keypad for easy configuration, precise process control with V/Hz control and sensorless vector control for both AC induction and PM motors, enhanced short circuit protection, operating mode selection with variable torque and constant torque V/Hz profiles, and embedded Modbus-RTU communication interface for real time control and monitoring.
Integrated keypad with on-board configuration accelerates commissioning and reduces wiring errors, delivering faster time-to-prod. This translates to lower engineering effort and shorter downtime during changes and line upgrades. In practice, technicians adjust speed, torque, and protection settings directly at the drive, enabling rapid adaptation in augers, mixers, and conveyors without external HMI changes. Sensorless vector control for both AC induction and PM motors provides precise torque control and smoother acceleration. The business impact includes improved process stability, reduced energy consumption, and less mechanical wear, extending motor life. This capability is ideal for pumps and mixers where load swings are common in processing lines. V/Hz control with variable torque and constant torque profiles optimizes performance across load ranges, delivering efficiency gains and better control under light loads or high-torque starts, useful for fans, conveyors, and augers. Embedded Modbus-RTU enables real-time control and monitoring from PLCs or SCADA systems, streamlining integration, centralized diagnostics, and faster fault isolation, cutting maintenance costs. In practice, technicians pull motor status, fault codes, and speed setpoints over a standard RS-485 link on automated lines. Rugged enclosure and corrosion-resistant materials deliver durability in washdown, outdoor, and dirty environments, reducing unplanned downtime and maintenance costs. Applications include outdoor conveyors and process lines in food and chemical industries where cleanliness and reliability are critical. Compatibility with a 240 V three-phase supply and modular installation supports retrofit projects and new builds alike, with the integrated keypad, robust enclosure, and compact footprint simplifying on-machine mounting and wiring and speeding up installation and service.
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FAQs
Begin by verifying 240 V three-phase supply and selecting the IP66/UL 4X rated enclosure configuration. Mount the drive on the machine frame, connect motor leads to the output terminals, and wire the 240 V input power. Use the on-board keypad to set basic parameters (voltage, motor type, protection), then enable Modbus-RTU for PLC integration. Verify commissioning with a slow ramp and monitor all fault indicators during initial runs.
Key specs include V/Hz control with sensorless vector control for both induction and PM motors, and torque profiles for variable and constant torque. These deliver smooth starts, stable speed control under fluctuating loads, and reduced motor wear. For pumps, this translates to steady flow, lower energy spikes, and improved process stability across varying head pressures.
Yes. The drive's IP66/UL Type 4X enclosure provides washdown durability and corrosion resistance, making it well-suited for food, beverage, and chemical environments. Its integrated keypad simplifies field programming, while Modbus-RTU enables real-time monitoring and control from centralized control systems, supporting compliant, hygienic, and reliable operation on continuous process lines.
The ACS255 features UL Type 4X (NEMA) and IP66 ratings, indicating robust protection against moisture, dust, and corrosion. These certifications support safety and reliability requirements in harsh production environments, enable outdoor or washdown installations, and help meet industry standards for equipment used in national and international regulated processes.
Expect reduced downtime from rugged construction and enhanced protection, along with energy savings from efficient V/Hz and torque control. Real-time visibility via Modbus-RTU lowers maintenance costs through remote diagnostics and predictive service planning, while faster commissioning minimizes line halt times during changes or upgrades, delivering a favorable total-cost-of-ownership profile.