ABB AX670 3BSE000566R1

Description

Detailed parameter table

ABB AX670 3BSE000566R1

Product introduction

The AX670 3BSE000566R1 is a reliable digital input module from ABB, designed to serve as a key component in Advant OCS and Symphony Harmony distributed control systems. It functions as the interface between field-level digital devices—such as limit switches, pushbuttons, and proximity sensors—and the central control system, converting physical signals into digital data for processing.

With 16 configurable channels, this module can accommodate both sinking and sourcing input devices, eliminating the need for external signal converters. The AX670 3BSE000566R1 is built to deliver consistent performance in industrial environments, featuring robust isolation and diagnostic capabilities that simplify troubleshooting. Its compatibility with ABB’s legacy control systems makes it an ideal choice for upgrading or maintaining existing installations in power plants, chemical facilities, and manufacturing plants where system continuity is critical.

Core advantages and technical highlights

Flexible input configuration

The AX670 3BSE000566R1 can be easily configured for either sinking or sourcing inputs via DIP switches, providing versatility in system design. In a pulp and paper mill, this allows the module to connect to:

Sourcing proximity sensors monitoring roll position

Sinking limit switches on conveyor systems

This flexibility reduces inventory costs by eliminating the need for separate modules for different sensor types.

Enhanced system diagnostics

Equipped with channel-level open circuit detection and status LEDs, the AX670 3BSE000566R1 simplifies fault identification. In a water treatment plant, if a valve position switch fails, the module immediately flags the corresponding channel with a red LED, allowing technicians to pinpoint the issue without extensive testing—reducing troubleshooting time by up to 50%.

Proven reliability in legacy systems

As a long-standing component in ABB’s product portfolio, the AX670 3BSE000566R1 has a track record of reliable operation in mature industrial environments. In a refinery with 30-year-old control infrastructure, it integrates seamlessly with existing PM630 processors and wiring, maintaining system integrity while enabling incremental upgrades—avoiding the cost and disruption of a full system replacement.

Typical application scenarios

In a fossil fuel power plant’s boiler control system, the AX670 3BSE000566R1 monitors critical safety interlocks. Its inputs connect to:

Flame detector status signals

Pressure switch contacts for overpressure protection

Door interlocks on boiler access panels

The module transmits these signals to the PM630 processor, which initiates shutdown sequences if any safety parameter is violated. The diagnostic LEDs on the AX670 3BSE000566R1 provide immediate visual confirmation of signal presence, aiding technicians during startup and maintenance.

In a chemical batch processing facility, the module tracks the status of process valves and agitator motors. It receives signals from limit switches indicating valve open/closed positions and from motor contactors confirming operation. This data is used by the Advant Controller 450 to sequence batch steps, ensuring each phase of production (mixing, heating, cooling) completes successfully before proceeding—preventing costly recipe errors.

ABB AX670 3BSE000566R1

Related model recommendations

DO650 3BHT300026R1: Digital output module that pairs with AX670 3BSE000566R1 for complete digital I/O functionality.

PM630 3BHT300043R1: Processor module that communicates with AX670 3BSE000566R1 in Advant OCS systems.

AX620 3BSE000565R1: 8-channel digital input module, a smaller alternative to AX670 3BSE000566R1.

TU810 3BHT300059R1: Terminal unit that provides additional connection points for field devices when used with AX670 3BSE000566R1.

CI801 3BSE013232R1: Communication interface that enables data transfer between AX670 3BSE000566R1 and higher-level systems.

AX671 3BSE000567R1: Enhanced version of AX670 3BSE000566R1 with faster response time (≤5 ms) for time-critical applications.

Installation, commissioning and maintenance instructions

Installation preparation: Mount the AX670 3BSE000566R1 in the designated slot of the Advant OCS rack, ensuring secure engagement with the backplane connector. Configure the sinking/sourcing setting using the front-panel DIP switches before wiring. Use 0.5-1.5 mm² stranded wire with ferrules for screw terminal connections, ensuring tight termination to prevent signal loss. Connect 24 V DC power from the rack power supply, verifying correct polarity and a fused (1 A) circuit.

Maintenance suggestions: Inspect the AX670 3BSE000566R1 monthly by checking LED status—green indicates active input, off indicates no signal, and flashing red signals a fault. Clean the module’s surface and ventilation slots quarterly with a dry cloth to prevent dust buildup. Test input channels annually by applying a 24 V DC signal and confirming the corresponding LED illuminates. If a channel fails, swap the field device to a spare channel and reconfigure the system. Replace the module if multiple channels malfunction, using only ABB-approved units to maintain compatibility with legacy systems.

Service and guarantee commitment

The AX670 3BSE000566R1 is supported by ABB’s legacy system service program, with a 1-year warranty for replacement units. ABB’s technical support team provides specialized assistance for integration with Advant OCS systems, including access to archived documentation and configuration guides.

Customers receive guidance on system upgrades, helping to transition from AX670 3BSE000566R1 to modern ABB modules when needed, while maintaining operational continuity. ABB maintains a stock of replacement units to minimize downtime in critical legacy installations, ensuring reliable performance for the lifetime of the control system.