BCU-02 3AUA0000110429 ABB Control Unit

Overview

The BCU-02 Inverter Module combines advanced control with versatile connectivity, designed to optimize industrial automation. It supports redundant power supplies, precise analog/digital I/O, and secure communication protocols, making it ideal for complex applications.

Features

1. Redundant Power Inputs: Dual 24 V DC external power inputs ensure reliability.
2. Flexible I/O Options: Supports analog, digital, and relay outputs with robust filtering for stable performance.
3. Enhanced Connectivity: Ethernet (RJ-45), RS-485, and SDHC card slot for seamless communication and data storage.
4. Integrated Safety Functions: Safe Torque Off (STO) and interlock inputs for improved operational safety.
5. High-Speed Processing: 0.25 ms sampling for analog inputs ensures real-time data accuracy.

Technical Specifications

Power Supply

• Model: BCU-02
• Voltage: 24 V (±10%) DC, 2 A
• Terminal Pitch: 5 mm, Wire Gauge: 2.5 mm²

Relay Outputs (RO1…RO3)

• Voltage: 250 V AC / 30 V DC, 2 A
• Protection: Varistor-protected

Digital Inputs (DI1…DI6)

• Logic Levels: “0” < 5 V, “1” > 15 V
• Input Type: NPN/PNP, Rin: 2.0 kΩ
• Filtering: Hardware (0.04 ms), Adjustable Digital Filter (up to 8 ms)

Analog Inputs (AI1, AI2)

• Modes: Current (-20…20 mA, Rin: 100 Ω), Voltage (-10…10 V, Rin: >200 kΩ)
• Resolution: 11-bit + sign
• Error Margin: 1% of full range

Analog Outputs (AO1, AO2)

• Current Range: 0…20 mA, Rload: <500 Ω
• Frequency Range: 0…500 Hz
• Error: 2% of full range

Ethernet Port (XETH)

• Terminal: RJ-45
• Cable Length: <3 m

Safe Torque Off (XSTO)

• Voltage Range: -3…30 V DC
• Logic Levels: “0” < 5 V, “1” > 17 V
• Current Consumption: 66 mA/channel

Memory Card

• Type: SDHC
• Max Capacity: 4 GB

FAQ

Q1: Can I connect redundant power supplies?
A1: Yes, the model supports dual 24 V DC power inputs for redundancy.

Q2: What is the maximum SD card capacity?
A2: The SDHC slot supports up to 4 GB memory cards.

Q3: How precise are the analog inputs?
A3: Analog inputs have a resolution of 11 bits + sign with an error margin of 1%.

Q4: Is the STO function certified?
A4: Yes, it complies with IEC 61326-3-1 EMC standards for safety.