Allen-Bradley 1336F-MCB-SP1G Control Board

Technical Specifications

Main Features and Advantages

Core Processing and Advanced Control Execution: The Allen-Bradley 1336F-MCB-SP1G​ is the engine that executes the sophisticated control algorithms of the 1336 PLUS/FORCE drive. It processes the speed/torque command, motor feedback (if applicable), and current feedback to generate precise Pulse Width Modulation (PWM) signals for the drive’s power stage. It enables advanced control features like sensorless vector control for improved low-speed torque and speed regulation, as well as standard Volts/Hertz modes. The board manages critical protective functions, constantly monitoring for faults like overcurrent, overvoltage, and motor overload, and initiating safe shutdowns when necessary. This processing intelligence is what allows the drive to provide high-performance motor control that protects equipment and optimizes processes.Comprehensive Connectivity and System Integration: A primary advantage of the 1336F-MCB-SP1G​ is its role as the drive’s gateway to the wider control system. The board provides the physical and logical interface for Allen-Bradley’s communication networks. Through plug-in communication daughterboards (like 1336-MOD-xxx series), it seamlessly integrates the drive into Remote I/O (RIO) networks, allowing it to be controlled and monitored as a rack-optimized adapter directly from a PLC-5 or SLC-500 processor. It also supports DeviceNet connectivity for device-level networking. This deep integration simplifies wiring, enables centralized control and data collection, and allows for real-time adjustment of drive parameters from a PLC or HMI, making the entire automation system more cohesive and responsive.Enhanced Usability and Diagnostics: The MCB stores all drive configuration parameters and operating firmware in non-volatile memory, ensuring settings are retained during power cycles. It interfaces directly with the drive’s keypad, providing an intuitive local interface for parameter programming, manual control, and real-time monitoring of operating data (output frequency, current, bus voltage). The Allen-Bradley 1336F-MCB-SP1G​ also maintains a detailed fault log, recording the last several faults with associated conditions. This diagnostic capability is invaluable for troubleshooting, reducing machine downtime by quickly identifying the root cause of a drive trip. Its modular design also aids in serviceability, as the control board can be replaced independently of the power components, reducing repair costs and time.

Application Field

The Allen-Bradley 1336F-MCB-SP1G​ Main Control Board is integral to the operation of 1336 PLUS/FORCE drives across a vast spectrum of industrial applications where robust and reliable variable speed control is required. In material handling, these drives—controlled by the 1336F-MCB-SP1G—are used on conveyor systems, sortation equipment, and automated storage/retrieval systems (AS/RS). The board’s fast processing and network connectivity allow for precise speed synchronization of multiple conveyors and rapid response to PLC commands for starting, stopping, and speed changes based on package sensing.In industrial HVAC for large facilities, drives containing this MCB control fans and pumps in air handlers and cooling towers. The board’s ability to execute energy-saving algorithms and communicate via networks allows for integration into building management systems (BMS) for optimized climate control. Within the manufacturing sector, the Allen-Bradley 1336F-MCB-SP1G​ is found in drives powering machine tools, mixers, agitators, extruders, and winding equipment. Its support for sensorless vector control provides the necessary torque for constant-torque applications like extruders, while its communication capabilities enable seamless integration into the machine’s main PLC-based control system for coordinated operation. Essentially, wherever a 1336 series drive is deployed for its durability and performance—from food and beverage processing lines to pulp and paper mills—the 1336F-MCB-SP1G​ is the essential component providing the intelligence, connectivity, and control that makes advanced automation possible.