ABB BCU-02 3AUA0000110429 Control unit module

Overview

The ABB BCU-02 is a control unit module used with ABB motor drive systems (e.g. ACS880), providing communication, logic control, and coordination functions via fiber optic links between converter modules and system control.

General Information

• Part Number: 3AUA0000110429 (BCU-02)

• Manufacturer: ABB

• Series: BCU control units (BCU-02 / BCU-12 / BCU-22 family)

• Type: Drive control / logic / communication module

• Mounting: DIN-rail or chassis installation, integrates with drive cabinet

• Technology: Microprocessor-based control with I/O, fiber interface ports, SD memory and relay outputs

Power Specifications

• Power Supply: External 24 V DC (±10%), up to 2 A input (supports redundant power input)

• Power Consumption: ~5 W (nominal)

• Input: +24 V DC external supply (terminal XPOW)

• Outputs: +24 V DC for digital signals (XD24)

• Protection: Surge protection, redundant power input capability

• Indicators: LEDs for PWR OK, FAULT, WRITE, BATT OK, etc.

Communication & Interface

• Ethernet Port: RJ-45 connector (XETH) (note: may be reserved or not used in firmware)

• Microprocessor: Integrated CPU managing control logic, diagnostics, and data handling

• LAN Management: Supports fieldbus / network adapter modules via option slots

• Operator Interface: 7-segment display and status LEDs

• Reset Features: Memory unit removal or software reset capability

I/O & Channels

• Relay Outputs: 3 relay outputs (RO1, RO2, RO3), rated 250 VAC / 30 V DC, 2 A each

• Digital Inputs / Outputs: Multiple DI / DIO channels with configurable logic levels

• Safe Torque Off (STO): STO input and output interfaces to inverter modules

• Load Support: Channel outputs limited by internal design and total load allocations

Environmental

• Operating Temperature: 0 to +70 °C

• Humidity: up to 95% RH, non-condensing

• Protection Class: IP10

• Standards / Certifications: UL Open Type, Overvoltage Category II, compatible with ABB drive safety standards

Dimensions

• Size (L × W × H): 265 × 210 × 75 mm

• Weight: ~1.8 kg