B&R X20AI4632 Analog Input Module

Product Overview

The X20AI4632 (X20AI4632) is a high-performance analog input module engineered for the modular B&R X20 System. This module features 4 independent analog inputs, offering field-selectable configuration for either ±10 V voltage signals or 0 to 20 mA current loops. Designed for precision-critical industrial sectors—including high-speed process control, power generation monitoring, and complex robotic trajectory feedback—the X20AI4632 delivers a rapid total conversion time of 50 microseconds across all channels. By utilizing simultaneous SAR (Successive Approximation Register) conversion and 15-bit resolution, the module ensures accurate, deterministic signal acquisition, making it essential for high-speed loops that demand minimal latency and high signal fidelity.

Technical Configuration

This module is built to maintain precision in electrically demanding environments, featuring robust differential input architecture and comprehensive diagnostic capabilities.

• Signal Versatility: Each of the 4 channels supports either voltage or current signals, determined via terminal connection, providing flexibility for mixed-sensor architectures.

• High-Speed Processing: With a total conversion time of 50 microseconds and integrated third-order low-pass filters (10 kHz cutoff), the module effectively balances high-frequency sampling with noise suppression.

• Advanced Diagnostics: Real-time monitoring is provided via LEDs for module run/error status and channel-specific functionality. Software-defined configuration allows for precise control over input parameters, ensuring seamless integration into B&R Automation Studio.

• Industrial Robustness: The module is certified for hazardous locations (Class I, Division 2) and extreme environmental conditions, supporting broad operating temperatures and high vibration resilience as per DNV and LR standards.

Technical Specifications

Industrial Hardware FAQs

Can I mix voltage and current inputs on the same module?

Yes. The X20AI4632 is designed to support both signal types. Because the input type is determined by the specific terminal connections used, you can configure individual channels for either ±10 V or 0 to 20 mA as required by your field instrumentation.

What does the "Simultaneous Input Conversion" feature provide?

Simultaneous conversion ensures that all 4 channels are sampled at the exact same moment. This is vital in applications like multi-phase power monitoring or coordinated motion sensing, where phase-accurate data is required to calculate meaningful real-time values without the temporal offset found in sequential sampling modules.

Does the module require additional components for installation?

Yes. To complete the assembly, you must order 1x X20TB12 terminal block and 1x X20BM11 bus module separately. These components ensure the module maintains the correct pitch and connectivity within the X20 backplane architecture.

Field Commissioning and Safety Guidelines

Grounding and Common-Mode Integrity

The module features a common-mode range of ±12 V. Ensure that your signal grounds are bonded correctly to the system reference to prevent common-mode voltage from exceeding this range, which would result in measurement inaccuracies or potential input stage damage. Use shielded twisted-pair cabling for all inputs and terminate the shields at the cabinet entry point to the system ground.

Input Protection and Overload Handling

The module is protected against accidental connection to supply voltage and can withstand signal inputs up to ±30 V (voltage mode) or ±50 mA (current mode). Despite this protection, always verify your wiring polarity and signal range before applying power. If an overload occurs, the module outputs standardized codes (0x8001 for undershoot, 0x7FFF for overshoot) to the control software, allowing for automated safety logic responses.

Thermal Derating at High Altitude

While the module is rated for elevations up to 2000 meters without limitations, installations exceeding this altitude require active thermal management. For every 100 meters above 2000 meters, reduce the maximum allowable ambient operating temperature by 0.5 deg C to compensate for lower air density and diminished cooling efficiency.