Allen-Bradley 1336F-BRF200-AA-EN Fail-Safe AC Drive

Overview

Allen-Bradley 1336F-BRF200-AA-EN Fail-Safe AC Drive: Fault-Tolerant Motor Control for Critical Industrial Sites

The Allen-Bradley 1336F-BRF200-AA-EN is a 200HP variable frequency drive from Rockwell Automation’s proven 1336 FORCE series — engineered for continuous-duty industrial environments where unplanned downtime, control loop interruption, or drive-level faults carry serious operational and safety consequences. Designed to meet the demands of heavy motor loads, high-inertia applications, and safety-critical control architectures, this drive delivers fail-safe performance across a wide range of hazardous and demanding field conditions.

In continuous production environments — petrochemical plants, power generation facilities, mining conveyors, water treatment stations, and metallurgical processing lines — a drive failure is never just a mechanical inconvenience. It can trigger cascading interlock faults, emergency shutdowns, and costly restart sequences. The 1336F-BRF200-AA-EN is built to minimize these risks through robust surge immunity, stable output regulation, and reliable communication with upstream PLC and DCS systems.

Fail-Safe Reliability Table

Control Cabinet Protection Strategy

Deploying the 1336F-BRF200-AA-EN within a well-engineered control cabinet requires a layered protection strategy. The drive’s EtherNet/IP communication port integrates directly with Allen-Bradley ControlLogix L7x or CompactLogix L3x controllers, enabling real-time fault diagnostics, speed reference commands, and drive status monitoring without additional protocol converters. For installations where legacy DeviceNet infrastructure is already in place, the 1336 FORCE series supports adapter modules that bridge existing network topologies without requiring full cabinet redesign.

Power quality at the drive input is critical. Pairing the 1336F-BRF200-AA-EN with a line reactor — such as the Allen-Bradley 1321-3R series — significantly reduces harmonic distortion and protects the drive’s input rectifier from voltage spikes common in facilities with large transformer banks or shared bus systems. In environments with frequent power interruptions or utility switching transients, an upstream surge protective device (SPD) rated for the drive’s input voltage class provides an additional layer of protection against impulse damage.

On the output side, motor cable lengths exceeding 30 meters in high-EMI environments benefit from an output dV/dt filter or load reactor, preventing reflected wave voltage stress on motor windings — a common failure mode in long-cable VFD installations. The Allen-Bradley 1321-M series output reactors are dimensionally compatible with 1336 FORCE installations and are recommended for cable runs in mining, port crane, and offshore applications.

For cabinet thermal management, the 1336F-BRF200-AA-EN’s internal cooling fan and heat sink are rated for continuous duty at 40°C ambient. In high-ambient enclosures — common in foundry, cement, or outdoor substation installations — supplemental cabinet cooling via a Rittal TopTherm or equivalent heat exchanger unit maintains drive longevity and prevents thermal derating faults. Monitoring cabinet temperature via a dedicated thermostat relay wired to the PLC’s digital input module provides early warning before thermal shutdown occurs.

Safety interlock circuits in the control cabinet should incorporate the drive’s digital input terminals for coast-to-stop and controlled-stop commands, ensuring that emergency stop (E-stop) signals from a safety relay module — such as the Allen-Bradley MSR127RP or equivalent — are correctly interpreted by the drive without causing uncontrolled motor coasting in high-inertia loads.

Critical Industrial Safety Applications

Petrochemical & Refinery: In pump and compressor drive applications within hazardous zones, the 1336F-BRF200-AA-EN provides stable speed regulation under variable process loads. Its fault logging capability supports root-cause analysis after process upsets, reducing mean time to repair (MTTR) in critical rotating equipment.

Power Generation: Cooling tower fan drives, boiler feed pump auxiliaries, and induced draft fan applications in thermal power plants demand drives capable of sustained operation under voltage fluctuation and harmonic-rich grid conditions. The 1336 FORCE series’ robust input rectifier and DC bus capacitor bank are sized for these demanding duty cycles.

Mining & Mineral Processing: Conveyor belt drives, crusher auxiliaries, and slurry pump stations in underground and open-pit mining environments expose drives to extreme dust ingress, vibration, and wide ambient temperature swings. Panel-mounting the 1336F-BRF200-AA-EN in a sealed, climate-controlled MCC enclosure with positive-pressure purging is the recommended installation practice for these sites.

Water & Wastewater Treatment: Variable-speed pump control for raw water intake, filtration backwash, and effluent discharge applications benefits from the drive’s precise flow control capability. Integration with SCADA systems via EtherNet/IP enables remote monitoring and alarm management without on-site intervention.

Metallurgy & Steel: Rolling mill auxiliary drives, ladle transfer car drives, and fume extraction fan applications in steel plants require drives with high overload capacity and fast fault response. The 1336F-BRF200-AA-EN’s overcurrent protection and configurable fault response parameters support safe shutdown sequencing in these high-consequence environments.

Port & Marine: Crane hoist and travel drives, ship-to-shore conveyor systems, and ballast pump applications in port and marine environments demand drives with proven corrosion resistance and tolerance for shipboard power quality variations. Proper cabinet sealing and conformal coating of control boards are recommended for salt-air environments.

Safety and Quality FAQ

Q1: What does the support terms confirmed by quotation cover, and when does it start?
The support terms confirmed by quotation cover all manufacturing defects, component failures under normal operating conditions, and functional faults identified during the confirmed support period. The confirmed support period begins from the date of shipment. KNMKS provides direct replacement or repair support, and support requests are processed without requiring return to the original manufacturer.

Q2: What pre-shipment testing is performed on the 1336F-BRF200-AA-EN before dispatch?
Every unit undergoes a full functional test prior to shipment, including power-on verification, fault code diagnostics, communication port integrity check, and output voltage balance verification across all three phases. Test records are available upon request and accompany each shipment as part of the quality documentation package.

Q3: Is the 1336F-BRF200-AA-EN compatible with existing Allen-Bradley PLC and network infrastructure?
Yes. The EN suffix designates EtherNet/IP communication capability, making this drive directly compatible with Allen-Bradley ControlLogix, CompactLogix, and MicroLogix platforms using standard Add-On Profiles (AOPs) in Studio 5000 or RSLogix 5000. Legacy DeviceNet and DH+ integration is achievable via communication adapter modules. Parameter migration from earlier 1336 FORCE firmware versions is supported with appropriate programming tool versions.

Q4: Can KNMKS support long-term spare parts supply and replacement for the 1336 FORCE series?
Yes. KNMKS maintains inventory of 1336 FORCE series drives and key spare components to support multi-year maintenance agreements. For facilities requiring guaranteed availability windows of 12–36 months, KNMKS offers reserved stock arrangements with defined lead times. Contact our technical sales team to discuss site-specific spare parts planning and consignment stock options.

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Allen-Bradley
Allen-Bradley

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1336F-BRF200-AA-EN

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