The ABB AO810V2, part number 3BSE038415R1, is a high-performance Analog Output Module designed for the S800 I/O system. This module provides 8 channels of unipolar analog outputs, specifically engineered to drive control elements such as valve positioners, motor actuators, and frequency converters. The “V2” indicates the second version of the AO810, featuring enhanced diagnostic capabilities and improved electrical robustness. As part of the S800 modular I/O family, it interfaces seamlessly with ABB’s 800xA, AC 800M, and Advant controllers through various Communication Interface (CI) modules.
Technical Specifications
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Model Number: AO810V2 (3BSE038415R1)
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Manufacturer: ABB
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System Series: S800 I/O
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Number of Channels: 8 (Unipolar, non-isolated as a group)
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Output Signal: 0(4)…20 mA
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Resolution: 14 bits (including sign)
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Load Impedance: Max 850 Ω (at 20 mA)
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Accuracy: ±0.1% of full scale
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Module Termination Units (MTUs): Compatible with TU810, TU812, TU814, TU830, TU833
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Dimensions: 11.9 cm x 4.5 cm x 10.2 cm
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Weight: 0.18 kg
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Country of Origin: Sweden / Estonia
Applications
The AO810V2 is a critical component in process industries such as pulp and paper, metal refining, and power generation. It is used to transmit setpoint signals to field devices in PID control loops. For example, it can regulate the steam flow in a turbine by controlling a pneumatic valve positioner or adjust the speed of a conveyor belt via a Variable Speed Drive (VSD). Its 14-bit resolution ensures smooth and precise control for sensitive process variables.
Operating Instructions
The AO810V2 is a “hot-swappable” module when used in a redundant configuration. To install, align the module with the Module Termination Unit (MTU) and press firmly until the locking mechanism clicks. The MTU handles the field wiring, which simplifies the replacement of the electronic module without disturbing the cables. Before commissioning, ensure the external 24 VDC power supply to the MTU is within the specified tolerance (19.2 to 30 VDC). Configuration is performed via the ABB Control Builder software, where you can define the signal range (0-20mA or 4-20mA) and the “Output Behavior at Communication Error” (e.g., Hold Last Value or Go to Zero).
Frequently Asked Questions
Q: What is the main difference between the AO810 and the AO810V2? A: The AO810V2 (3BSE038415R1) is a direct functional replacement for the original AO810. It features updated internal components that offer better immunity to electromagnetic interference (EMI) and improved diagnostics for detecting open-circuit conditions on the output loops.
Q: Does this module provide galvanic isolation between channels? A: No, the 8 channels share a common ground. However, the module provides galvanic isolation between the internal ModuleBus logic and the field output circuitry to protect the controller from field-side surges.
Q: How do I handle an “O-SP” (Open Signal Path) error? A: If the module reports an open signal path, check the continuity of the 4-20mA loop. The AO810V2 monitors the loop current; if the resistance exceeds 850 Ω or the wire is broken, the module will trigger a diagnostic alarm in the controller.
Recommended Similar Models
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ABB AO815 (Analog Output, 8-channel, HART)
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ABB AI810 (Analog Input Module, 8-channel)
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ABB DO810 (Digital Output Module, 16-channel)
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ABB TU810 (Standard Module Termination Unit)
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ABB CI801 (PROFIBUS Communication Interface)
