Product Overview

The Allen‑Bradley 1336F‑BRF150‑AA‑EN​ is a high‑performance adjustable frequency AC drive (variable frequency drive, VFD) from Rockwell Automation’s 1336 PLUS II family, rated at 150 HP (112 kW) for 380–480 V AC, three‑phase input power systems. Designed to control the speed, torque, and direction of standard squirrel‑cage induction motors, the Allen‑Bradley 1336F‑BRF150‑AA‑EN​ converts fixed‑frequency mains power into a variable‑voltage, variable‑frequency output that allows precise matching of motor output to process demand. This not only improves energy efficiency in variable‑load applications such as pumps and fans but also reduces mechanical stress on driven equipment during start‑up through controlled ramp‑up and ramp‑down profiles.The Allen‑Bradley 1336F‑BRF150‑AA‑EN​ supports both Volts‑per‑Hertz (V/Hz) control for simple applications and sensorless vector control for enhanced low‑speed torque and improved speed regulation without requiring an encoder feedback device. It features a built‑in RS‑485 DSI communication port for integration with Rockwell Automation SLC‑500, PLC‑5, ControlLogix, or CompactLogix processors via DF1 or Modbus RTU protocols, and accepts optional plug‑in communication cards for DeviceNet, ControlNet, PROFIBUS‑DP, or EtherNet/IP networks. The drive includes an integral alphanumeric HMI (Human Interface Module) with English language prompts for parameter programming, fault diagnosis, and real‑time monitoring of motor current, frequency, and DC bus voltage.Positioned as a versatile, cost‑effective solution for general‑purpose and light‑industrial drive applications, the Allen‑Bradley 1336F‑BRF150‑AA‑EN​ combines rugged NEMA Type 1 / IP20 enclosed construction with comprehensive motor and drive protection functions—including overcurrent, over/under‑voltage, ground fault, and motor overload—making it suitable for continuous operation in demanding plant environments. Its modular design allows quick addition of I/O option cards, dynamic brake resistors, and remote HMI kits, extending functionality as application requirements evolve while preserving the original drive investment.

Technical Specifications

Main Features and Advantages

Flexible motor control strategies: The Allen‑Bradley 1336F‑BRF150‑AA‑EN​ gives users the choice between standard V/Hz control—ideal for centrifugal pumps, fans, and compressors where precise low‑speed torque is not critical—and sensorless vector control, which provides up to 150 % starting torque at 0.5 Hz and ±0.5 % speed regulation without the cost or complexity of an encoder. This flexibility lets one drive model serve both simple and demanding applications across a plant, reducing spare‑parts diversity.Integrated diagnostics and local HMI: Every Allen‑Bradley 1336F‑BRF150‑AA‑EN​ ships with a detachable alphanumeric LCD keypad (HIM) that displays fault codes in plain English, scrolls through more than 150 viewable parameters, and permits on‑the‑fly changes to acceleration/deceleration times, frequency reference, and current limit. The last‑fault buffer stores multiple fault histories with timestamps, greatly accelerating root‑cause analysis during troubleshooting. The HIM can be door‑mounted using an optional extension kit so operators can monitor drive status without opening the enclosure.Expandable connectivity for modern automation: Although the base Allen‑Bradley 1336F‑BRF150‑AA‑EN​ includes an RS‑485 DSI port for peer‑to‑peer or SCADA polling, its option slot accepts a wide range of Rockwell Automation communication cards. This makes it straightforward to upgrade from standalone drive control to fully networked operation on DeviceNet, ControlNet, or EtherNet/IP—key for plants migrating toward PlantPAx process automation strategies—without replacing the drive itself.Comprehensive protective functions: The drive continuously monitors input phase loss, output phase‑to‑phase short circuits, over‑temperature, over‑/under‑voltage on the DC bus, and motor overload per NEC Class 10/20/30 curves (via programmable electronic overload). The Allen‑Bradley 1336F‑BRF150‑AA‑EN​ also features configurable current limiting to prevent nuisance trips on high‑inertia starts and can trigger external alarms via programmable relay outputs before reaching trip thresholds, supporting predictive maintenance programs.