Foxboro FXAOM01AD - I/A Series 8-Channel Analog Output Module (0-10V / 4-20mA)

Foxboro FXAOM01AD – I/A Series 8-Channel Analog Output Module (0-10V / 4-20mA)

In stock

Product Introduction:
The Foxboro FXAOM01AD is an 8-channel analog output module for the Foxboro I/A Series Distributed Control System. The “FX” denotes Foxboro I/A Series, “AO” stands for Analog Output, “M” indicates it is a multi-channel module, “01” identifies the 8-channel configuration, and “AD” is the revision code. This module converts digital values from the I/A Series processor into precise analog voltages (0-10V) or currents (4-20mA) that control field devices such as control valves, dampers, and variable speed drives. The module provides per-channel isolation, fail-safe outputs, and continuous self-diagnostics, making it suitable for process control applications where output precision directly affects product quality and safety.

Technical Specifications:
Board Type: Analog Output Module
System: Foxboro I/A Series (Series 400)
Channels: 8 independent analog output channels
Output Types: 0-10V DC or 4-20mA (software selectable per channel)
Resolution: 16-bit D/A conversion
Accuracy: +/- 0.05% of full scale
Linearity: +/- 0.01% of full scale
Update Rate: 100 milliseconds simultaneous update
Isolation: 1500V RMS channel-to-channel and channel-to-ground
Settling Time: Less than 10 microseconds
Fail-Safe: Configurable to 0mA, 4mA, or hold last value on communication loss
Power: 24V DC from I/A backplane
Form Factor: 3U I/A Series Eurocard
Operating Temperature: 0 to 60 degrees Celsius

Functional Features:
Per-Channel Configuration: Each output can be independently configured for voltage or current mode, range, and fail-safe state.
Simultaneous Update: All 8 outputs update at the exact same instant, critical for multi-valve control.
Per-Channel Isolation: Each output is electrically isolated from every other output, preventing ground loops.
Fail-Safe Outputs: Configurable to default to a safe state (0mA or 4mA) on communication loss.
LED Indicators: Per-channel LEDs show output status at a glance.
Self-Diagnostics: Continuous self-test of D/A converters, isolation barriers, and communication paths.
Watchdog Timer: Hardware watchdog detects communication loss and forces safe output.

Application Scenarios:
Valve Position Control: Drives the torque motors of fuel control valves and steam control valves in power plants.
Damper Control: Positions air dampers in HVAC systems and combustion control.
Setpoint Distribution: Sends analog setpoints to multiple remote controllers from a single CPU.
Calibration Systems: Provides precise reference voltages for calibrating field transmitters.

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