Product Overview

The Allen-Bradley 1336F-BRF200-AA-EN​ is a 1336 PLUS II adjustable frequency AC drive from Rockwell Automation, built to control the speed and torque of a three-phase induction motor from a fixed mains supply. Reading the catalogue number the way Rockwell defines it: 1336F is the bulletin, BR is the voltage class covering 380 to 480 V AC or 513 to 620 V DC input, F200 is the nominal rating, AA is the IP20 / NEMA Type 1 enclosure, and EN is the English language group for the human interface.One point deserves to be stated plainly, because it is the single most common error in circulation. Several reseller listings describe the 1336F-BRF200-AA-EN​ as a 200 HP drive. It is not. In the 1336 PLUS II numbering scheme the rating field is read with an implied decimal — F05 is 0.5 HP, F100 is 10 HP and F200 is 20.0 HP — and the BR frame range runs from 0.5 HP to 20 HP at 1.1 to 27 A. The 1336F-BRF200-AA-EN​ is therefore a 20 HP (15 kW) drive with a 27 A continuous output. The suffix EN is the language option, not an EtherNet/IP module.That correction matters at the purchasing stage, because a buyer who orders this part expecting 200 HP will receive a drive one tenth of the size. What the 1336F-BRF200-AA-EN​ actually is: a mid-power, sensorless-vector drive for pump, fan, conveyor and general machine duty, discontinued by Rockwell and supplied today mainly as a replacement for installed 1336 PLUS II panels.

Technical Specifications

Main Features and Advantages

Sensorless vector control as standard: The 1336F-BRF200-AA-EN​ runs Rockwell’s sensorless vector algorithm, which delivers far better low-speed torque and speed regulation than plain V/Hz without the cost and wiring of an encoder. Where the application does demand full torque at zero speed, the drive accepts an encoder feedback card and runs closed loop. Auto-tuning lets the drive measure the connected motor and set its own model, which removes a lot of guesswork at commissioning.Protection logic that prevents trips rather than just reporting them: Proactive current limit, overcurrent stall and overvoltage stall let the 1336F-BRF200-AA-EN​ ride through momentary disturbances by stretching the accel or decel ramp instead of faulting. On a conveyor that hits a jam, or a pump that sees a sudden head change, this is the difference between a nuisance stop and continuing production. The drive retains the last four faults in memory with plain-language messages, so a technician arriving at 02:00 can see what happened without a laptop.Process functions that remove external hardware: A built-in process PI controller means a pump or fan loop can be closed on pressure or flow directly inside the 1336F-BRF200-AA-EN, with no separate loop controller in the panel. Add the auto economiser for variable-torque loads, flying start for fans that are still windmilling, three skip frequencies to avoid mechanical resonance, seven preset speeds, S-curve ramps, slip compensation and droop, and a large fraction of typical application logic is already inside the drive.Communication and panel integration: SCANport gives the 1336F-BRF200-AA-EN​ a common interface to DeviceNet, ControlNet, Profibus DP and Remote I/O through plug-in modules, and the same control interface is shared across the 1336 family, which shortens training for sites running a mixed population of drives.

Application Field

Pumps, fans and other variable-torque loads: The squared V/Hz mode, the built-in PI controller and the auto economiser make the 1336F-BRF200-AA-EN​ a natural fit for centrifugal pumps and fans, where energy use falls with the cube of speed and a modest reduction in flow usually pays for the drive quickly. Water and wastewater lift stations, HVAC air handlers and cooling tower fans are typical homes for a 20 HP frame.Conveyors, mixers and general machine duty: On constant-torque loads the 1336F-BRF200-AA-EN​ uses its sensorless vector capability for high starting torque and stable speed under changing load, with DC injection braking or a dynamic brake resistor for controlled stopping. Skip frequencies avoid the resonant speeds that show up on long belt runs and on machines with gearboxes.Legacy panel replacement: This is the dominant reason the 1336F-BRF200-AA-EN​ is purchased today. Rockwell has discontinued the 1336 PLUS II line, but thousands of panels are still in service, and replacing a failed drive with the same catalogue number is usually far cheaper than re-engineering the enclosure, the power wiring and the control philosophy around a modern PowerFlex. Matching the AA enclosure, the EN language and the 27 A rating keeps the swap mechanical.Multi-drive coordinated lines: With a communication module fitted, the 1336F-BRF200-AA-EN​ takes speed reference, start/stop and fault status over the network, which suits small coordinated lines and pump groups supervised from a single PLC.