Description
INMMP11: Product Overview
The ABB INMMP11 is a critical power supply module designed for ABB’s Bailey INFI 90 distributed control system (DCS), a legacy platform widely used in power generation, water treatment, and chemical processing. As a core component of the INFI 90 ecosystem, it delivers stable 24V DC power to controllers, I/O modules, and other field devices, ensuring uninterrupted operation of mission-critical processes.
Role in Automation Systems:
Positioned as a “power backbone” for the INFI 90 DCS, the INMMP11 converts incoming AC power (100-240V) into regulated DC power, which is distributed to all connected components. Its primary function is to safeguard the DCS from power fluctuations, surges, and faults, which could otherwise lead to downtime or equipment damage.
Core Functionality:
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Voltage Conversion: Efficiently steps down AC input to 24V DC using switch-mode technology, minimizing energy loss.
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Regulation: Maintains a stable output voltage (±1% tolerance) despite variations in input voltage or load changes, ensuring consistent performance of connected devices.
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Protection: Integrated overvoltage (limits output to 28V DC max), short-circuit (shuts down output within 10ms), and overcurrent (trips at 12A) protection safeguard both the module and the DCS.
Platform Benefits (Bailey INFI 90 Series):
The INMMP11 leverages ABB’s legacy of reliability in industrial automation. Key benefits include:
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Backward Compatibility: Compatible with earlier Bailey Control Systems (e.g., Network 90), enabling phased modernization of existing facilities.
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Scalability: Supports expansion with additional power modules to accommodate growing operational needs.
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Diagnostic Capabilities: Built-in status LEDs (power, fault) simplify troubleshooting, reducing mean time to repair (MTTR).
ABB DAI03
Technical Specifications
Model Number: INMMP11
Manufacturer: ABB (formerly Bailey Controls)
Product Type: Power Supply Module
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Input Voltage: 100-240V AC (auto-ranging)
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Input Frequency: 47-63 Hz
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Output Voltage: 24V DC (±1%)
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Output Current: 10A (continuous)
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Efficiency: ≥85% (typical at full load)
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Protection Rating: IP20 (front panel)
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Operating Temperature: -20°C to +60°C (-4°F to 140°F)
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Storage Temperature: -40°C to +85°C (-40°F to 185°F)
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Humidity: 5-95% non-condensing
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Dimensions (W×H×D): 150 mm × 100 mm × 50 mm (5.91 in × 3.94 in × 1.97 in)
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Weight: 0.8 kg (1.76 lbs)
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Certifications: CE, UL (inferred from ABB’s industrial product standards)
Core Features & Customer Value
1. Stable Power for Critical Devices:
The INMMP11’s regulated 24V DC output ensures that Bailey INFI 90 controllers and I/O modules receive consistent power, preventing false readings or malfunctions. For example, in a power plant, this stability is critical for maintaining accurate turbine control and avoiding unplanned shutdowns.
2. Robust Protection Against Power Faults:
The module’s overvoltage, short-circuit, and overcurrent protection safeguards the DCS from electrical faults, reducing the risk of equipment damage and downtime. This is particularly valuable in industries like chemical processing, where power faults could lead to hazardous situations.
3. Easy Integration with Existing Systems:
Designed specifically for Bailey INFI 90 DCS, the INMMP11 installs in standard power distribution units (PDUs) and requires no additional configuration. This plug-and-play compatibility reduces setup time and effort for engineers.
4. Scalable for Growing Needs:
With a 10A continuous output current, the INMMP11 supports expansion with additional modules, making it suitable for large-scale applications like power plants or water treatment facilities.
Typical Applications
The ABB INMMP11 is widely used in industries relying on Bailey INFI 90 DCS:
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Power Generation:
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Provides power to turbine controllers and generator excitation systems in thermal power plants.
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Example: In a coal-fired power plant, the INMMP11 powers the INFI 90 controller, which regulates turbine speed and fuel flow to maintain optimal efficiency.
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Water Treatment:
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Supplies power to pump controllers and valve actuators in municipal water treatment plants.
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Example: A water treatment plant uses the INMMP11 to power the INFI 90 DCS, which controls the flow of water through filtration systems, ensuring compliance with environmental regulations.
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Chemical Processing:
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Powers reactor temperature controllers and pressure sensors in petrochemical refineries.
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Example: In a refinery, the INMMP11 powers the INFI 90 controller, which adjusts the flow of reactants into a reactor, maintaining optimal reaction conditions.
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