ABB ACS255-01U-04A3-1 LV AC Micro Drive - IP20 Open
Part Number: 3AUA0000199524
Quick Summary
The ABB ACS255-01U-04A3-1 LV AC micro drive delivers precise motor speed control for packaging, conveying, and process equipment. Engineers often struggle with integration in compact enclosures, wiring complexity, and calibration downtime. The drive offers IP20 protection and UL-listed open enclosure configuration, with CE and SIL certifications to be confirmed per regional requirements. This combination enables faster installation, easier diagnostics, and scalable control through Modbus-RTU while supporting variable torque and constant torque V/Hz profiles. Its integrated keypad streamlines commissioning, reducing on-site setup time for new lines, retrofits, and field service visits. With sensorless vector control, it delivers smooth startup and precise torque for both induction and PM motors, improving process stability and energy efficiency.
Product Information
Extended Description
3AUA0000199524 ABB: The ACS255 drive comes in several variants ensuring seamless integration into machines. The UL (NEMA) TYPE Open / IP20 ACS255 is designed for installation inside another enclosure. 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. Optional external control panel for remote mounting and control is available
Integrated keypad and straightforward configuration speed up commissioning and reduce wiring errors, cutting downtime on new lines, retrofits, and field service visits. This enables OEMs to bring machines online faster and with fewer specialist tools, minimizing installation risk on conveyors, pumps, and packaging equipment. The sensorless vector control delivers precise torque and smooth operation for both AC induction and PM motors, improving process stability and reducing motor wear in demanding applications like augers and mixers. V/Hz control with variable torque and constant torque profiles optimizes performance across load conditions, delivering energy savings and more consistent product quality in fans and pumps. Short circuit protection and robust safety features minimize unplanned outages, supporting compliance in harsh factory environments while preserving uptime. Embedded Modbus-RTU allows real-time control and centralized monitoring, enabling seamless PLC/SCADA integration and easier remote diagnostics. Finally, IP20 protection with UL open enclosure compatibility simplifies installation inside machine cabinets and supports a modular, scalable automation strategy for conveyors and processing lines.
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FAQs
The ACS255-01U-04A3-1 is designed for UL Open / IP20 enclosure configurations. Install it inside a compatible enclosure with proper sealing, route motor and power cables as per the installation manual, and use shielded cables for Modbus-RTU where applicable. Verify clearance for heatsinking and allow for proper ventilation to maintain IP20 protection during operation.
Yes. The drive includes an embedded Modbus-RTU communication interface, enabling real-time control and monitoring via PLCs and SCADA systems. Connect the Modbus master to the drive’s RS-485 port, configure baud rate and addressing in the parameter set, and implement appropriate safety and failover logic in the host controller.
The ACS255 supports sensorless vector control for both AC induction motors and permanent magnet (PM) motors. This enables precise torque and speed regulation across a range of loads, improving startup performance, efficiency, and motor longevity in applications like augers, mixers, pumps, and conveyors.
Ideal for packaging lines, conveyors, pumps, fans, and mixers where compact size and precise control matter. The drive’s variable torque and constant torque V/Hz profiles adapt to varying load conditions, while its keypad-based configuration accelerates setup for OEM machines and retrofit projects.
Expect reduced commissioning time due to the integrated keypad, fewer wiring errors, and lower downtime from robust short-circuit protection. Real-time monitoring via Modbus-RTU supports predictive maintenance and asset optimization, delivering energy savings and improved process consistency across production lines.