Allen-Bradley 150-F970NBE SMC Flex Solid State Controller 970A

Product Overview

Industrial motor control has evolved from simple across-the-line starters to sophisticated solid-state controllers that protect equipment and optimize energy use. The Allen-Bradley SMC Flex 150-F970NBE represents this advancement, providing microprocessor-based control for 3-phase squirrel cage induction motors. This smart motor controller integrates seven standard operating modes into a single unit, offering flexibility for applications ranging from pump control to braking. With a robust 970 A rating and 800 Hp capability at 460V AC, it handles heavy loads while reducing mechanical stress and electrical surges.

Technical Specifications Breakdown

Key parameters for the 150-F970NBE are listed below for quick reference:

Industry Applications

Pump Control for Water and Wastewater

Its integrated pump control reduces power surges during start and stop cycles by smoothly accelerating and decelerating the motor. This minimizes water hammer and extends pump life. The 970 A rating supports large pumps in municipal water treatment or industrial cooling systems.

Conveyor Systems in Material Handling

Soft starting heavy conveyor belts reduces mechanical shock and belt wear. The selectable kickstart and current limit start modes allow precise torque control during startup.

Braking Control for High-Inertia Loads

For applications requiring rapid stopping, the smart motor braking, accu-stop, and slow speed with braking options provide controlled deceleration. This is critical for centrifuges, crushers, or any high-inertia machinery where safety and precision matter.

Installation & Setup Guidance

Mount the open enclosure in a clean, dry location away from excessive vibration and contaminants. Ensure adequate airflow around the unit for heat dissipation. Connect the 3-phase input line voltage (200-460V AC, 50/60 Hz) to the appropriate terminals. The control voltage (110/120V AC) must be supplied separately for units in the 625-1250 A range. Verify that the motor rating matches the controller rating (970 A, 800 Hp @ 460V AC). Use the LCD screen and DPI communication interface to configure one of the seven operating modes. For 6-lead Wye-Delta motors, follow the wiring diagram provided in the manual. Always comply with local electrical codes and lockout/tagout procedures during installation.

Maintenance & Reliability

Periodically inspect the controller for dust accumulation, loose connections, or signs of overheating. Clean the enclosure using a dry, low-pressure air stream. Check that all power and control wiring terminations remain tight. The electronic motor overload protection and CT on each phase with 4 programmable auxiliary contacts reduce the need for external protective relays. Monitor the LCD for fault codes and address them promptly. No internal adjustments or component replacements should be attempted by unqualified personnel.

Compatibility & Integration

The 150-F970NBE is designed for 3-phase standard squirrel cage induction motors and Wye-Delta (6-lead) motors within the 1-1250 A range. It can also control resistive loads. The DPI communication port allows integration with Allen-Bradley networks for remote monitoring and configuration. The controller operates at 200-460V AC, 50/60 Hz, and supports a variety of operating modes including soft start, current limit start, dual ramp start, full voltage start, linear speed acceleration, preset slow speed, and soft stop.

Selection Guide & Purchasing Advice

When selecting a solid state controller, match the motor full-load current and horsepower to the controller rating. The 150-F970NBE is suitable for motors up to 970 A and 800 Hp at 460V AC. Verify the input voltage matches your facility supply (200-460V AC, 3-phase). For applications requiring pump or braking control, this model includes those features. Please verify current lifecycle status and availability with AutoDCSTech before ordering. Contact our team for assistance with configuration or compatibility questions.