ABB AI825 Analog Input Module

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ABB AI825 Analog Input Module

Core Product Information

1. Signal Acquisition Capability

• Supports 8 isolated analog input channels, compatible with voltage (±10V, 0-10V), current (0-20mA, 4-20mA), and resistance (0-200Ω) signals, suitable for pressure, temperature, flow sensors, etc.
• 16-bit sampling accuracy with up to 500Hz conversion rate, capturing dynamic signal changes for high-precision process control.

2. Electrical Isolation Design

• 2500V AC isolation per channel suppresses electromagnetic interference and common-mode voltage, complying with EN 61000-6-2 EMC standards for reliable operation in harsh environments.

3. Communication & Interfaces

• Real-time communication via S800 I/O system bus, supporting hot-swapping without power outage; built-in channel status indicators for on-site commissioning.
• Detachable terminal block design enables pre-wiring, reducing installation time.

4. Power Specifications

• Powered by S800 I/O bus (24V DC), power consumption ≤4W, supporting redundant power for adaptability to industrial power fluctuations (±15%).

Key Product Attributes

1. Physical Specifications

• Dimensions: 105mm×50mm×150mm (W×H×D), weight 0.3kg; metal shell for anti-EMI, IP20 protection, suitable for -25℃~+70℃ industrial environments.

2. Certifications & Standards

• CE, UL, cUL certified, compliant with IEC 61508 SIL2 and EN 61131-2 standards, applicable to safety-critical systems.

3. Compatibility Design

• Compatible with ABB AC 800M, AC 800PEC controllers; mixable with S800 I/O digital and communication modules, supporting up to 128 I/O modules expansion.

4. Diagnostic Functions

• Built-in self-diagnosis monitors channel faults (open circuit, overrange) and module anomalies, feedbacking fault codes via status lights and bus for easy maintenance.

Core Functions

1. High-Precision Signal Conversion
   Converts field analog signals (voltage/current from sensors) to digital data via 16-bit ADC, ensuring accuracy with error ≤±0.05% F.S.
2. Industrial-Grade Anti-Interference
   Electrical isolation and shielding resist EMI from VFDs, motors, etc., suitable for process parameter monitoring in metallurgy, chemical, power industries.
3. Flexible Configuration
   Supports customizing channel types, filter parameters, and alarm thresholds via ABB Control Builder, adapting to complex industrial processes.
4. System Integration
   Provides standardized analog input for SCADA/DCS systems, enabling real-time interaction with PLCs to build complete automation control loops for intelligent production.

The structure and details of the product：

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