Product Specification: B&R X20AO4632 Analog Output Module

1. General Information

• Manufacturer: B&R Industrial Automation

• Part Number: X20AO4632

• Alternative Designation: X20 AO4632

• Product Type: 4-Channel High-Precision Analog Output Module

• Product Series: X20 System (Distributed Cabinet I/O)

• B&R ID Code: 0x1BA5

• Certifications: CE, UKCA, ATEX, cCSAus (Class I, Division 2, Groups ABCD, T5), DNV GL, LR, CCS, KR, ABS, BV, KC

• Product Status: Active (Current Production)

2. Core Description

3. Technical Specifications

3.1 Analog Output Interface

• Number of Outputs: 4 independent, configurable analog output channels

• Signal Type (Per Channel): Selectable via physical terminal connections – Voltage or Current

• Voltage Output Range: ±10 VDC

• Current Output Range: 0 to 20 mA (supports 4 to 20 mA as a subset)

• Digital Converter Resolution:

  • Voltage Mode: ±15-bit (16-bit total including sign)

  • Current Mode: 15-bit

• Total Conversion Time: 50 µs (for all four outputs)B& R Industrial Automation

• Settling Time: 500 µs (for full-scale output change)B& R Industrial Automation

• Max. Output Current (Voltage Mode):

  • 5 V: 10 mA

  • < 5 V: 15 mA

• Max. Load Impedance (Current Mode): Up to 500 Ω

• Output Protection: Short-circuit proof across all channels

• Power-on Behavior: Internal enable relay for controlled, safe startupB& R Industrial Automation

3.2 Accuracy (at 25°C)

• Voltage Mode:

  • Gain Error: ±0.04% of full-scale

  • Offset Error: ±0.022% of full-scaleB& R Industrial Automation

• Current Mode:

  • Gain Error: ±0.04% of full-scale

  • Offset Error: ±0.022% of full-scaleB& R Industrial Automation

3.3 Electrical & Power Characteristics

• Bus Interface: X20 System Backplane

• Power Consumption:

  • Bus Power: 0.01 W

  • Internal I/O Power: 1.8 W (Revision ≥ J0), 2.2 W (Revision < J0)B& R Industrial Automation

• Isolation: Full galvanic isolation between field circuits, internal logic, and the backplane bus.

• Input/Output Filtering: Integrated surge protection and industrial-grade EMI/RFI filtering.

3.4 Physical & Environmental Characteristics

• Form Factor: Slim, modular X20 slice I/O module

• Width: 12.5 mm (+0.2 mm)

• Weight: Approx. 0.07 kg (0.15 lbs)

• Mounting: Direct insertion into X20 bus base module (DIN-rail compatible)

• Connectors: Requires separate X20TB12 12-pin screw terminal block

• Bus Base Module: Requires separate X20BM11 or compatible X20 bus module

• Operating Temperature:

  • Horizontal Mount: -25°C to +60°C

  • Vertical Mount: -25°C to +50°C (Revision ≥ J0)

• Storage Temperature: -40°C to +85°C

• Relative Humidity: 5 – 95% RH, non-condensing (operation, storage, transport)

• Vibration/Shock: Conforms to IEC 60068 standards (4 g vibration)

• Protection Rating: IP20 (front face)

• Material: Flame-retardant industrial plastic

3.5 Status Indicators & Diagnostics

• Channel LEDs: 4 individual LEDs for output status (per channel).

• Module Status LED: Indicates power, run, and error conditions.

• Diagnostic Features:

  • Comprehensive module run/error diagnostics via LED and software.B& R Industrial Automation

  • Channel type detection and configuration via software.B& R Industrial Automation

  • Over-current and short-circuit fault detection.

  • Real-time signal status monitoring.

4. Key Features & Benefits

• High-Resolution 16-Bit Performance: Delivers significantly higher precision than standard 13-bit modules (e.g., X20AO4622), ideal for micro-precision control tasks.

• 4-Channel Versatility: Four independently configurable outputs maximize control density and minimize cabinet space.

• Dual Signal Output: Per-channel selection between voltage (±10V) and current (0/4-20mA) via terminals for unmatched field device compatibility.

• Ultra-High Accuracy: Minimal gain and offset errors ensure stable, repeatable control signals critical for high-quality process control.B& R Industrial Automation

• High-Speed Response: Ultra-fast 50 µs conversion time optimizes performance in dynamic, high-speed control loops.B& R Industrial Automation

• Industrial Robustness: Full galvanic isolation and short-circuit protection safeguard the module and controller against field faults.

• Safe Startup: Internal enable relay ensures controlled power-up and prevents unexpected actuator movement.B& R Industrial Automation

• Advanced Diagnostics: Real-time LED and software-based monitoring simplifies troubleshooting and reduces downtime.B& R Industrial Automation

• Seamless X20 Integration: Hot-swappable design and plug-and-play installation with X20BM11 bus base and X20TB12 terminals.

• Hazardous Location Rated: Certified for use in Class I, Division 2 hazardous areas, expanding application scope.

5. Typical Applications

• Precision Process Automation: Controlling control valves, I/P converters, and variable frequency drives (VFDs) where high accuracy is paramount.

• Semiconductor & Electronics Manufacturing: Precision control of positioning stages, flow regulators, and wafer processing equipment.

• Test & Measurement: Generating high-fidelity, calibrated reference signals for automated test equipment (ATE).

• Motion Control: Providing ultra-precise speed or torque reference signals to high-performance servo drives.

• Pharmaceutical & Food & Beverage: Dosing, mixing, and pressure control in hygienic processing requiring high repeatability.

• Laboratory & Analytical Instruments: Precise control of pumps, heaters, and analytical sensors.

• Oil & Gas / Chemical: Control applications in hazardous (Class I, Div. 2) locations requiring precision.

6. Compatibility

• System Compatibility: Full integration with all B&R X20 system controllers and CPUs.

• Bus Base: Requires X20BM11 (standard) or X20BM15 (with node switch) bus module.

• Terminal Block: Requires X20TB12 12-pin screw terminal block.

• Software: Fully configurable and programmable via B&R Automation Studio.

7. Reliability & Support

• Design Life: Engineered for continuous 24/7 operation in harsh industrial environments.

• Warranty: Covered under B&R's standard manufacturer's warranty.

• Product Lifecycle: Active, current production with full technical support.

• Maintenance: Minimal maintenance required; built-in diagnostics facilitate rapid service and fault resolution.