ABB DO561 1TNE968902R2201 S500-eCo Digital Output Module

Product Overview

The ABB DO561 (1TNE968902R2201) serves as a compact, high-efficiency digital actuation interface within the AC500-eCo PLC family. This module provides 8 transistor-based output channels, each capable of switching 24VDC loads up to 0.5A. It coordinates the operation of solenoid valves, pilot lamps, and small contactors in localized automation architectures. We supply this module as 100% Brand New and Original, ensuring your distributed I/O system maintains factory-certified switching precision and high-speed electronic protection.

Technical Specifications

The DO561 delivers discrete control through the following hardware parameters:

• Number of Digital Outputs: 8 Channels

• Output Type: Transistor (Source)

• Rated Output Current: 0.5 A per channel

• Output Voltage: 24V DC (Range: 20.4 V to 28.8 V DC)

• Wiring Configuration: 1-wire connection

• Connection Type: Pluggable terminal blocks

• Supply Voltage: 24V DC (20.4 ... 28.8 V DC)

• Degree of Protection: IP20

• Operating Temperature: 0 °C to +60 °C

• Net Dimensions: 34 mm (W) x 74 mm (H) x 135 mm (D)

Engineering Advantages

• Space-Saving Slim Profile: With a width of only 34 mm, the DO561 maximizes DIN rail density. This compact design allows engineers to integrate multiple output expansions into small control boxes or machine-mounted enclosures without upgrading to larger cabinets.

• Wear-Free Transistor Switching: Transistor technology eliminates the mechanical wear associated with traditional relay modules. This allows for high-frequency switching and a virtually unlimited operational lifespan, making it ideal for fast-acting solenoid control in packaging and sorting applications.

• Simplified Pluggable Connectivity: The pluggable terminal system facilitates rapid wiring and commissioning. Technicians wire the connectors independently of the module housing, enabling instant "cold" swaps during maintenance and drastically reducing Mean Time to Repair (MTTR).

• Integrated Fault Safeguards: The module incorporates electronic short-circuit and overload protection for each channel. These safeguards prevent field-side electrical faults from damaging the internal circuitry or disrupting the broader control logic of the AC500-eCo PLC.

• Broad Environmental Tolerance: Designed for industrial environments, the module operates reliably across a temperature range of 0 °C to +60 °C. The IP20-rated housing provides essential protection for standardized DIN rail mounting in both horizontal and vertical orientations.

FAQs

• Can the DO561 drive inductive loads directly?

  Yes. The transistor outputs manage standard inductive loads such as solenoid valves. For very large inductive loads or high-current contactors, we recommend adding external surge suppression to extend the module’s service life.

• Does this module require a separate terminal base?

  No. Unlike the standard AC500 series, the AC500-eCo modules like the DO561 utilize a direct-pluggable terminal block system. This simplifies assembly and reduces the overall depth of the PLC stack.

• How does the 1-wire configuration benefit my wiring plan?

  The 1-wire architecture streamlines the termination process by requiring only the signal wire for each output at the module terminal. This significantly reduces wiring complexity and minimizes potential errors during field installation.

• Is the DO561 compatible with all AC500-eCo CPUs?

  The DO561 integrates seamlessly with the entire AC500-eCo range. It communicates via the local I/O bus when mounted next to the CPU or via decentralized bus couplers for remote I/O configurations.