Description

Overview

The ABB IMASO01 is an analog output interface module developed for ABB Bailey INFI-90 distributed control systems. It is responsible for converting digital control signals from the processor into stable analog outputs used to drive field devices.

This module is designed for applications requiring high signal accuracy and reliability. With integrated isolation and filtering, it ensures consistent performance when controlling actuators, valves, and other process equipment in demanding industrial environments.

Functional Capabilities

• Converts digital control data into analog output signals

• Supports current and voltage output configurations

• Provides electrical isolation between system and field circuits

• Maintains signal stability through built-in filtering

• Enables closed-loop control of process equipment

• Reports operational status and diagnostics to the control system

Technical Specifications

Electrical Characteristics

• Supply Voltages: +5 VDC, ±15 VDC, +24 VDC

• Total Power Consumption: Approximately 15.8 VA

• Backplane Interface: INFI-90 system bus

Output Configuration

• Output Channels: Typically 8 channels (hardware-dependent)

• Alternate Configuration: Up to 14 output points in certain variants

• Output Types:

• 4–20 mA current output (standard industrial control)

• Voltage output (application-dependent)

• Load Capability: Compatible with standard analog loop loads

• Isolation: Channel-to-channel and channel-to-system isolation

Analog Performance

• D/A Conversion Resolution: Typically 12–16 bit class

• Output Accuracy: Industrial-grade precision suitable for control loops

• Signal Conditioning: Hardware filtering for noise suppression

Communication Interface

• System Bus: INFI-90 I/O communication bus

• Data Handling: Buffered and synchronized output updates

• Diagnostics:

• Output channel monitoring

• Module status reporting

• Communication health indication

Environmental Conditions

• Operating Temperature: 0°C to +60°C

• Storage Temperature: –40°C to +85°C

• Humidity: 5% to 95% non-condensing

Mechanical Specifications

• Dimensions: 7.0 × 2.0 × 13.0 in (17.8 × 5.1 × 33.0 cm)

• Weight: 0.75 lbs

• Form Factor: Eurocard module

• Mounting: Compatible with INFI-90 Module Mounting Unit (MMU)

Front Panel Features

• Module status LED

• Output activity indicators

• Identification labeling

Application Areas

The ABB IMASO01 is used in process industries requiring precise analog signal output:

• Power generation facilities including thermal and hydro plants

• Oil and gas refining and processing

• Petrochemical production systems

• Pulp and paper manufacturing

• Distributed control systems with analog actuation requirements

FAQ

What type of signals does the IMASO01 provide?
It typically outputs 4–20 mA signals, with optional voltage outputs depending on configuration.

How many output channels are available?
Most configurations provide 8 channels, though some variants support higher point counts.

Is the module suitable for closed-loop control?
Yes, it is designed for precise control of valves, actuators, and other field devices.

How does it ensure signal reliability?
Through isolation, filtering, and diagnostic monitoring, the module maintains stable and accurate output signals.

Specifications

• Brand: ABB

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems