ABB 3AUA0000199523 ACS255 Drive - UL Open / IP20
Part Number: 3AUA0000199523
Quick Summary
ACS255 drive provides precise speed and torque control for pumps, mixers, and conveyors. Engineers often struggle with time-consuming wiring, calibration, and integration when adding drives to compact machinery. This model supports UL Open / NEMA-type installation with IP20 protection, simplifying safety and enclosure planning. With an integrated keypad, sensorless vector control for both AC induction and PM motors, and embedded Modbus-RTU connectivity, commissioning is faster and real-time monitoring is practical. The result is improved process stability, reduced downtime, and lower lifecycle costs across automation lines.
Product Information
Extended Description
3AUA0000199523 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
Feature: Integrated keypad for configuration. Benefit: Accelerates commissioning and reduces field wiring errors, improving first-time setup and operator usability. Application: New lines and retrofit projects where fast, reliable parameter changes are critical. Feature: V/Hz control plus sensorless vector control. Benefit: Delivers precise torque management for both induction and PM motors, minimizing overshoot and energy use. Application: Pumps, fans, and conveyors where load variation occurs. Feature: Embedded Modbus-RTU interface. Benefit: Enables real-time control and monitoring from PLCs and SCADA, reducing downtime and manual checks. Application: Industrial automation cells requiring seamless PLC communication. Feature: Short-circuit protection and enhanced safety margins. Benefit: Protects equipment and personnel while lowering maintenance costs over the long term. Application: Harsh environments with demanding startup transients. Feature: IP20 enclosure with UL open/NEMA-type compatibility. Benefit: Simplifies installation inside machinery enclosures and reduces wiring complexity. Application: Compact machines like augers and mixers inside control panels. Feature: Optional external control panel for remote mounting. Benefit: Improves accessibility and maintenance, particularly in hard-to-reach installations. Application: Large conveyors or equipment located away from the control cabinet.
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FAQs
The ACS255 offers UL Open/NEMA Type Open compatibility with IP20 protection, allowing installation inside an enclosure without compromising safety. Its compact footprint and provided keypad simplify field configuration, while the open-type design reduces wiring complexity and improves access for maintenance during retrofit projects.
The drive provides V/Hz control and sensorless vector control, enabling precise torque management for both AC induction and permanent magnet motors. This combination delivers smooth starting, reduced motor wear, and efficient operation across variable loads typical in pumps, mixers, and conveyors.
Ideal for augers, mixers, pumps, fans, and conveyors, the ACS255 supports constant and variable torque profiles. Its 120V input and multiple control options make it suitable for compact automation cells and retrofit projects where reliable speed control and real-time monitoring are essential.
The ACS255 is designed for UL Open/NEMA Type installations with IP20 protection, addressing safety and enclosure requirements in machine-building environments. This configuration supports safer installation inside equipment housings and helps meet basic compliance needs for controlled industrial spaces.
With integrated keypad configuration, sensorless vector control, and Modbus-RTU communication, commissioning is faster and service visits are shorter. Real-time monitoring reduces unscheduled downtime, while reliable protection features extend motor life, delivering a lower total cost of ownership across production runs.