ABB AO910

Description

Detailed parameter table

ABB AO910

Product introduction

The AO910 is a high-performance analog output module from ABB, designed for the S800 I/O system to deliver precise control signals to industrial actuators and devices. As a key component in advanced process control systems, it converts digital commands from the AC800M controller into accurate analog outputs, enabling precise regulation of valves, variable speed drives, and other final control elements.

With 8 isolated channels supporting multiple signal types, AO910 offers exceptional flexibility for complex applications requiring diverse control strategies. Its ±0.05% accuracy and 16-bit resolution ensure that even minute adjustments in the control signal translate to precise changes in process variables—critical for maintaining product quality in industries such as pharmaceuticals, semiconductor manufacturing, and fine chemical production. Whether integrated with CI840A for networked operation or paired with ASFC-01C in motion control loops, AO910 delivers reliable performance, making it a cornerstone of modern industrial automation.

Core advantages and technical highlights

Superior accuracy

AO910’s ±0.05% accuracy specification ensures consistent signal delivery across its operating temperature range. In a biopharmaceutical fermentation process, this precision allows the module to control a nutrient dosing pump with 0.01% flow accuracy, maintaining optimal cell growth conditions and ensuring batch-to-batch consistency. When paired with feedback from analytical sensors, the closed-loop system regulated by AO910 keeps critical process parameters within tight tolerances.

High channel density

Packing 8 channels into a 45 mm-wide housing, AO910 reduces cabinet space requirements by 50% compared to 4-channel modules. In a water treatment plant with dozens of chemical dosing points, this density allows engineers to terminate all control signals in a single rack, simplifying wiring and reducing the footprint of the control system. The module’s compact design also facilitates easier expansion of I/O capacity during plant upgrades.

Advanced diagnostics

AO910 provides comprehensive diagnostic capabilities, including open load detection and short circuit protection on each channel. In a natural gas processing plant, if a control valve’s coil fails (creating an open load), the module immediately alerts the control system, triggering a backup valve via a redundant AO910 channel. This proactive fault detection minimizes process disruptions and reduces troubleshooting time for maintenance teams.

Typical application scenarios

In a semiconductor fabrication cleanroom, AO910 plays a critical role in controlling deposition processes:

• Channels 1-4: 4-20 mA signals regulate mass flow controllers for gas delivery, with ±0.05% accuracy ensuring precise gas mixture ratios.
• Channels 5-6: ±10 V outputs control heater power supplies, maintaining deposition chamber temperatures within ±0.1°C.
• Channels 7-8: 0-10 V signals adjust pressure control valves, regulating vacuum levels during wafer processing.

The module’s isolation prevents cross-talk between sensitive channels, ensuring that small temperature adjustments don’t interfere with pressure control—critical for producing defect-free semiconductors.

In a food and beverage bottling line, AO910 manages multiple control loops:

• Controls servo-driven filling valves via 4-20 mA signals, adjusting flow rates based on bottle size data from the AC800M controller.
• Regulates a capping machine’s torque via 0-10 V outputs, ensuring consistent seal integrity without damaging containers.
• Works alongside ASFC-01Cfeedback converters in a closed-loop system, using position data from bottle conveyors to synchronize filling and capping operations.

AO910’s fast update rate (200 Hz) ensures that adjustments to filling speed are nearly instantaneous, preventing overflow during line speed changes.

ABB AO910

Related model recommendations

• AI910: Analog input module that pairs with AO910in closed-loop control systems, providing process feedback for precise regulation.
• TB820V2: Terminal base required for mounting AO910, featuring reinforced terminals for industrial wiring.
• AC800M PM864: High-performance controller that generates digital commands for AO910to convert into analog outputs.
• CI840A: Profibus communication module that enables remote configuration and monitoring of AO910in distributed systems.
• AO810: 4-channel analog output module that complements AO910in smaller control loops.
• ASFC-01C: Feedback converter module that works with AO910in motion control applications requiring precise position-vs-signal calibration.
• 1SVR011718R2500: 24 V DC power supply optimized for AO910and other S800 I/O modules.
• SPASO11: Safety output module that operates alongside AO910in systems requiring both standard and safety-related control functions.

Installation, commissioning and maintenance instructions

Installation preparation

Before installing AO910, ensure the S800 I/O rack is powered off and the mounting surface is clean. Mount the TB820V2 terminal base on a 35 mm DIN rail, leaving 30 mm clearance above and below for wiring access. Use shielded twisted-pair cables (0.5-1.5 mm²) for field connections, with separate runs for analog signals and power cables to minimize noise. Connect each actuator to the appropriate channel terminals, verifying polarity for current loops. Power the module via the S800 backplane, ensuring the 24 V DC supply is stable and within ±10% tolerance. Configure signal types per channel using ABB’s Control Builder M software before commissioning.

Maintenance suggestions

Inspect AO910 monthly by verifying green power and channel activity LEDs—red LEDs indicate faults requiring attention. Calibrate the module annually using a precision signal generator and multimeter, documenting results to track drift over time. Check terminal connections quarterly, tightening screws to 0.6 Nm to prevent vibration-induced loosening. If a channel fails, use the module’s diagnostics to isolate the issue (e.g., short circuit vs. internal failure). Replace AO910 with an ABB-approved spare if internal components fail, ensuring the replacement is configured with identical signal ranges to maintain system integrity.

Service and guarantee commitment

The AO910 is backed by a 3-year warranty, covering defects in materials and workmanship under normal operating conditions. ABB’s process automation technical support team provides 24/7 assistance for system integration, including guidance on pairing AO910 with actuators, controllers, and modules like ASFC-01C.

Customers receive access to detailed calibration procedures, wiring diagrams, and application notes specific to AO910. ABB offers on-site training for maintenance personnel, ensuring proper handling and maximizing module lifespan. With global distribution centers, replacement modules are available for rapid delivery, minimizing downtime in critical control loops. Trust AO910 to deliver precise analog control, backed by ABB’s expertise in industrial automation systems.