Description

The Allen-Bradley 41391-701-51 is a specialized control board designed for soft starter applications. This printed circuit board (PCB) serves as the primary control interface, managing input signals and internal power distribution to ensure precise motor starting and protection. It features integrated on-board transformers and a robust connector layout for reliable integration into industrial motor control centers.

Features

• Integrated on-board transformers for localized power regulation.
• Multiple high-density connectors for signal and power distribution: 2x 6-pin, 2x 8-pin, and 3x 4-pin interfaces.
• Supports a wide range of control supply voltages (100–240 V AC).
• Includes 8 digital inputs rated for 24 V DC operation.
• Designed for standard industrial mounting within soft starter enclosures.

Technical Specifications

Installation Guidelines

• Ensure the control system is fully de-energized before installing or removing the control board.
• Handle the PCB by the edges to prevent electrostatic discharge (ESD) damage to sensitive components.
• Verify that all connector pins are aligned correctly before seating the board to prevent bent pins or short circuits.
• Ensure adequate ventilation within the enclosure; if operating above 55 degC, derating of the output capacity may be required.
• Route signal cables away from high-voltage power lines to minimize electromagnetic interference (EMI).

FAQ

Q: Is this board compatible with all SLC 500 series processors?
A: This board is specifically designed for use with designated soft starter units. Please verify your soft starter model number against the 41391-701-51 part number to ensure compatibility.

Q: What is the required input voltage for the digital inputs?
A: The digital inputs are designed for a 24 V DC signal level.