920FK0042 Reliance Electric FlexPak 3000 Regulator Upgrade Kit

Product Overview

Key Specifications

• Part Number: 920FK0042 (alternate catalog number: CNR-920FK0042)

• Manufacturer: Reliance Electric (Allen-Bradley/Rockwell Automation)

• Compatible Drive Series: FlexPak 3000 Digital DC Drives

• Function: Regulator Upgrade Board (closed-loop speed and current control logic)

• Weight: Approximately 1.36 kg (3 lb)

• Product Status: Obsolete / Legacy (discontinued by the original equipment manufacturer)

• Form Factor: Standard PCB assembly designed for direct mounting in FlexPak 3000 drive enclosures

• Operating Environment: Designed for industrial ambient conditions, supporting standard industrial temperature ranges for reliable operation in factory settings

• Feedback Compatibility: Interfaces with motor speed encoders, armature current sensors, and DC bus voltage monitoring signals

• Protection Features: Integrated overcurrent, overvoltage, and short-circuit protection logic to safeguard the drive and connected motor

Kit Components

• Main Regulator PCB: A high-quality printed circuit board populated with surface-mount and through-hole components, including microprocessors, integrated circuits, precision resistors, and capacitors, all conforming to industrial-grade reliability standards.

• Gold-Plated Edge Connectors: Durable, vibration-resistant connectors that ensure secure electrical connection to the FlexPak 3000 drive backplane, minimizing signal interference and connection failures.

• Mounting Hardware: Stainless steel screws and standoffs for secure chassis installation, designed to withstand industrial vibration and mechanical stress.

• Factory Test Documentation: A certified factory test report verifying performance compliance with original Reliance Electric specifications, ensuring consistent and reliable operation post-installation.

Core Features and Benefits

• OEM Compatibility: Exact factory replacement for original FlexPak 3000 regulator boards, ensuring full compatibility and restoring drive performance to original factory specifications.

• Enhanced Closed-Loop Control: Delivers high-resolution speed and current regulation, improving motor operating smoothness and accuracy—critical for industrial applications demanding precise motion control.

• Improved System Stability: Upgraded control logic reduces response lag and minimizes speed fluctuations under varying load conditions, enhancing overall drive reliability.

• Integrated Fault Diagnostics: On-board monitoring circuits enable comprehensive fault detection and reporting, simplifying troubleshooting and reducing unplanned downtime for maintenance teams.

• Industrial-Grade Durability: Rugged PCB construction with conformal coating (on select revisions) protects against dust, moisture, and vibration, ensuring long-term reliability in harsh factory environments.

• Cost-Effective Legacy Support: An economical solution for repairing or upgrading aging FlexPak 3000 drives, avoiding the significant capital expense of full drive replacement.

• Factory Calibrated: Pre-tested and calibrated at the factory to ensure consistent performance, eliminating the need for complex on-site tuning during installation.

Applications

• Metal Processing: Rolling mills, metal extruders, coil winders, and slitting machines

• Material Handling: Overhead cranes, hoists, heavy-duty conveyors, and palletizers

• Machine Tools: Lathes, milling machines, grinders, and CNC equipment

• Paper and Printing: Web presses, paper machines, and converting equipment

• Legacy System Maintenance: Direct replacement for failed or degraded regulator boards in existing FlexPak 3000 installations, extending the service life of legacy drive systems.

Lifecycle and Availability

• Original Production: Discontinued by Reliance Electric/Rockwell Automation, classified as a legacy/obsolete part.

• Current Availability: Offered through authorized industrial automation parts suppliers as new surplus, professionally refurbished, and tested used units.

• Pricing Range: New surplus units typically priced around $4,119 USD, while reconditioned units are available at approximately $3,089 USD, subject to supplier and stock availability.

• Warranty Coverage: Authorized sellers typically provide warranty periods of 12 to 36 months, depending on the unit’s condition (new surplus vs. refurbished).

• Testing Standards: Each unit undergoes comprehensive continuity testing, isolation testing, functional testing, and load testing to ensure compliance with original factory performance specifications prior to shipment。