ABB RDCO-02C DDCS Communication Option Module

Description

The RDCO-02C is an add-on communication option module designed to handle high-speed data transmission and fieldbus networking within variable speed drive configurations. This module functions as an industrial interface board that establishes DDCS communication channels for the RMIO Motor Control and I/O board or BCU control units. Operating as a bridge for fiber optic connections, the board contains four discrete optical channels (CH0, CH1, CH2, and CH3) used to network overriding systems, local peripheral options, master-follower drive links, and diagnostic PC tools. Equipped with a coated circuit board to ensure protection against environmental degradation , the RDCO-02C provides deterministic signaling and robust noise immunity essential for reliable automated operations in demanding industrial sectors.

Features

• Complete fiber optic communication interface with four integrated transmitter/receiver connector pairs 
• Features a coated circuit board (indicated by the C suffix) to provide enhanced protection in standard industrial applications 
• Direct electrical integration through a built-in 20-pin pinheader that connects power and signal directly to the drive control unit 
• Flexible media capability supporting plastic optical fiber (POF) and Hard Clad Silica (HCS) physical lines 

Applications

• High-speed master-follower variable speed drive coordination links 
• Overriding system fieldbus adapter interfacing and data communication bridging 
• Drive parameter monitoring and external I/O configuration expansion networks 

Technical Specifications

Installation Guidelines

• Safety Rules: Ensure all mains input voltages and external dangerous voltages from control circuits are fully isolated and locked out before initiating work on the system. Always wait 5 minutes for the intermediate circuit capacitors to completely discharge after cutting power.
• ESD Prevention: The internal board assemblies carry micro-circuits highly susceptible to electrostatic breakdown. Personnel must wear an earthing wrist band when handling the equipment and avoid touching component traces unnecessarily.
• Mechanical Alignment: Insert the module safely into the designated slot marked with "DDCS" until the plastic clips engage into position. Fasten the two supplied M3x8 screws securely; these provide the structural earth path and interconnect module and board grounds to fulfill local EMC requirements.
• Optical Handling: Do not touch the fiber optic endpoints with bare hands since the interfaces are sensitive to surface dirt. Verify that cable long-term tensile loads remain below 1 N and respect a minimum short-term bend radius of 35 mm.