ABB FEN-31 HTL Encoder Interface Module 3ABD68978955 for ACS Drives

Overview
The ABB FEN-31 (3ABD68978955) is an HTL encoder interface module designed for ABB ACS drives. It enables connection of incremental encoders with HTL (High Threshold Logic) signals, providing precise speed and position feedback for demanding motion control applications. This module supports up to 500 kHz input frequency, allowing high-resolution control for hoists, conveyors, and positioning systems. Easy plug‑in installation makes it a flexible solution for closed‑loop drive applications.

Key Features

• HTL Encoder Support – Compatible with HTL incremental encoders (12‑24 V) for robust signal acquisition.

• High‑Speed Operation – Input frequency up to 500 kHz for high‑resolution control.

• Closed‑Loop Control – Enables precise speed and position regulation for demanding applications.

• Easy Installation – Plugs directly into ABB ACS drives (ACS355, ACS550, ACS580, ACS880).

• Diagnostics – LED indicators for status and fault monitoring.

• Original Brand New, Within Warranty Period – Genuine ABB product, brand new in sealed packaging, covered by manufacturer's warranty.

• 100% Satisfaction Guarantee – Your purchase is protected by our satisfaction guarantee; return or exchange if not completely satisfied.

Technical Specifications

• Product Type: HTL Encoder Interface Module

• Model: FEN-31

• Order Code: 3ABD68978955

• Encoder Types: HTL incremental encoders (12‑24 V)

• Input Frequency: Up to 500 kHz

• Compatibility: ABB ACS355, ACS550, ACS580, ACS880 drives

Applications
Ideal for closed‑loop speed and position control in hoists, cranes, conveyors, web handling, and precision positioning systems requiring HTL encoder feedback.

Package Includes

• 1 x ABB FEN-31 HTL Encoder Interface Module (3ABD68978955)

• Documentation