Allen-Bradley 150-F85NCD SMC-Flex Solid State Controller Overview

What Is the Allen-Bradley 150-F85NCD?

When motor starting challenges cause mechanical stress or power system disturbances, the Allen-Bradley 150-F85NCD SMC-Flex solid state controller provides a reliable solution. This modular controller starts and stops line-connected motors, including wye-delta connected 6-lead motors and standard 3-phase squirrel cage induction motors, using microprocessor-based control. Its flexible configuration allows end-users to select features and options freely, simplifying installation and commissioning.

Key Technical Specifications

The 150-F85NCD operates with an input line voltage of 200-575V AC, three-phase, at 50 and 60 Hz. It supports a control voltage of 100-240V AC for 5-480 A units. Rated at 85 A and 60 Hp at 460V AC, this unit comes in an open enclosure. The controller includes a three-line 16-character backlit LCD display and a five-button keypad for programming, with parameters arranged in a four-level menu.

Industry Applications

In pumping stations, the 150-F85NCD reduces water hammer by offering pump start and pump stop modes. For conveyor systems, soft start and soft stop minimize mechanical shock and extend equipment life. The dual ramp start mode suits applications requiring different acceleration profiles, such as mixers or crushers. These capabilities directly address common failure modes like belt slippage or gearbox wear.

Installation and Setup Guidance

Mount the open-enclosure controller in a clean, dry cabinet with adequate ventilation. Connect input power to the 200-575V AC three-phase terminals and control power to the 100-240V AC input. Use the five-button keypad to navigate the four-level menu and set parameters like ramp times and current limits. Verify all connections before applying power.

Maintenance and Reliability

Regularly inspect the enclosure for dust and debris to ensure proper cooling. Check all wiring connections for tightness. The controller's protective features—overvoltage, undervoltage, voltage unbalance, electronic motor overload, stall, jam, and underload protection—help prevent motor damage. Monitoring elapsed time, power, power factor, current, thermal capacity, and voltage via the metering function supports proactive maintenance.

Compatibility and Integration

The 150-F85NCD includes a serial interface port for connection to Bulletin 20 HMI terminals and Bulletin 20-COMM communication modules, supporting Allen Bradley Remote I/O, ProfiBUS, Interbus, EtherNet, ControlNet, RS485-DF1, and DeviceNet. Two inputs and four outputs provide network I/O through programmable auxiliary contacts labeled Aux #1 through Aux #4.

Selection Guide and Purchasing Advice

Before purchasing, verify that the input line voltage matches your facility's supply (200-575V AC, three-phase, 50/60 Hz) and that the 85 A rating suits your motor. Confirm the control voltage requirement (100-240V AC). For complete technical specifications, contact BluePLC Industrial, your reliable source for industrial automation parts.