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Technical specifications for AO2 2500M/AO2/XXXXX/XXXXXX
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Manufacturer:Invensys
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Product Category:DCS Systems
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Spare Part Number:AO2 2500M/AO2/XXXXX/XXXXXX
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Estimated shipping dimensions:15.2×2.5×8.8cm
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Weight:0.1 kg
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Tariff Code:8537101190
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Counliy of origin:USA
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Output channels:2
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Channel signal modes:Voltage or current, individually selectable
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Terminal-unit connections:4 screw terminals
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Channel 1 terminals:1+ and 1−
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Channel 2 terminals:2+ and 2−
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Channel power source:Isolated supply derived from the 24 V base
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Maximum module consumption:2.2 W
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Nominal conversion resolution:Better than 1 part in 10,000
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Standby actions:Low limit; high limit; continue
Information
Overview
Manuals
Common Applications
Product Precautions
Foxboro AO2 2500M/AO2/XXXXX/XXXXXX translates a control demand into an electrical output, allowing the two receiving devices to use independently selected signal modes.
- Uses a separate isolated output path for each channel.
- Derives channel power from the station base supply.
- Connects field circuits through four screw terminals.
- Supports configurable standby behavior for the driven outputs.
The output demand, engineering limits and electrical limits determine the signal delivered to the field device. A commissioning check should compare the requested process value with the actual signal at the receiver, including the cable and load.
Important Notice: Keep the final control element under supervision while output demands or standby states are being tested.
Foxboro AO2 2500M/AO2/XXXXX/XXXXXX Manuals & Downloads
Foxboro AO2 2500M/AO2/XXXXX/XXXXXX Manufacturer Technical Reference — Selected Pages (PDF)Foxboro AO2 2500M/AO2/XXXXX/XXXXXX Installation & Commissioning Guide (PDF)
The manufacturer excerpt covers the module connection and operating principles. The installation guide provides a separate sequence for wiring and functional checks.
Current-command devices
Drive a receiving circuit configured for an analog current demand.
Voltage references
Provide an analog voltage command to a suitable high-impedance receiver.
Independent control loops
Assign separate signal modes and scaling to the two channels.
Standby response
Apply the configured output behavior when the station enters standby.
Prepare the affected circuits before installing Foxboro AO2 2500M/AO2/XXXXX/XXXXXX.
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Place the controlled actuator in the required maintenance state.
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Check current versus voltage mode for each receiving device.
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Keep the two output terminal pairs separate.
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Do not back-feed an output with an external test source.
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Review engineering and electrical endpoint scaling together.
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Measure current in series and voltage across the receiving input.
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Test the selected standby response under controlled conditions.
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Restore the process demand and verify actuator response before handover.
Technical notes
The terminal pairs are 1+/1− and 2+/2−. Do not apply an external source to a driven output; select the receiving device and measuring instrument for the configured current or voltage mode.
FAQ View All FAQ
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Can the two channels of AO2 2500M/AO2/XXXXX/XXXXXX use different signal modes?Yes. Each channel is independently software-configurable for voltage or current output.
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Is an additional field power supply needed to drive the outputs of AO2 2500M/AO2/XXXXX/XXXXXX?No external channel power source is required. Each output has an isolated supply derived from the base supply.
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How should a meter be connected to check current from AO2 2500M/AO2/XXXXX/XXXXXX?Place a suitable current meter in series with the receiving circuit. Do not use a voltage measurement across an open circuit as proof of the delivered loop current.
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What distinguishes the engineering demand from the electrical output of AO2 2500M/AO2/XXXXX/XXXXXX?The engineering demand expresses the control value, while the electrical output is the voltage or current produced after scaling. Verify both when checking an actuator command.
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Which standby responses are available with AO2 2500M/AO2/XXXXX/XXXXXX?The output can be driven to its low limit, driven to its high limit or configured to continue. The selected response must fit the controlled process.
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Why is the connected load important when commissioning AO2 2500M/AO2/XXXXX/XXXXXX?The receiving circuit and cable affect whether the channel can deliver the requested current or voltage. Test the signal under its actual load rather than relying only on an unloaded measurement.
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