ABB IEPAS02 AC System Power Supply Module

Description

Technical Specifications

General Specifications

• Product Type: AC Input System Power Supply Module
• Compatibility: ABB Bailey INFI 90 DCS Platform
• Form Factor: Modular, rack-mountable for INFI 90 system racks
• Weight: Approximately 0.6 kg
• Protection Class: IP20 (suitable for installation in protected industrial cabinets)
• Certifications: CE, UL, CSA

Input Specifications

• Input Voltage: 120 VAC or 240 VAC (manual selectable)
• Input Voltage Range: 85 VAC to 264 VAC (wide universal input)
• Input Frequency: 47 Hz to 63 Hz
• Input Current: 3.0 A @ 120 VAC; 1.7 A @ 240 VAC

Output Specifications

• Number of Outputs: 3 isolated, regulated DC output voltages
• Output Channels & Ratings:
  • +5 VDC: 5 A (for logic and controller circuits)
  • ±15 VDC: 0.5 A (for analog signal circuitry)
  • +24 VDC: 2 A (for field devices and I/O loops)
• Output Accuracy: ±0.5% of full scale
• Ripple & Noise: ≤ 1% of output voltage (peak-to-peak)
• Isolation Voltage: 500 VAC (channel-to-channel and channel-to-bus)

Environmental Specifications

• Operating Temperature: -25°C to +55°C
• Storage Temperature: -40°C to +85°C
• Relative Humidity: 5% to 95% (non-condensing)
• EMC Compliance: IEC 61000-4 series (industrial EMC immunity)

Mechanical & Physical

• Dimensions: 170 mm (D) x 90 mm (H) x 40 mm (W)
• Mounting: Standard INFI 90 backplane mounting
• Cooling: Conduction / convection cooling via integrated heatsink

Diagnostic Indicators

• LED Indicators:
  • PWR: Green LED for AC input power status
  • +5V: Green LED for +5 VDC output status
  • +15V: Green LED for +15 VDC output status
  • -15V: Green LED for -15 VDC output status
  • +24V: Green LED for +24 VDC output status
  • FAULT: Red LED for overvoltage, overcurrent, or over-temperature fault

Functional Features

1. Multi-Channel Isolated Output

   Provides three essential, fully galvanically isolated DC voltages (+5V, ±15V, +24V) from a single AC input. This isolation eliminates ground loops, prevents electrical interference between system and field circuits, and protects the DCS from voltage transients, ensuring signal integrity and system safety.
2. Wide Universal Input Compatibility

   Accepts a broad input voltage range (85-264 VAC) and frequency range (47-63 Hz), enabling seamless operation across global industrial facilities with varying power standards without requiring hardware modifications.
3. High Precision & Low Noise

   Delivers high-precision voltage regulation (±0.5% accuracy) and ultra-low output ripple. This guarantees a clean power source, preventing signal distortion and ensuring the accurate performance of sensitive analog and digital control components.
4. Comprehensive Protection Mechanisms

   Integrates full electronic protection for all outputs, including overvoltage protection (OVP), overcurrent protection (OCP), short-circuit protection (SCP), and over-temperature protection (OTP). These safeguards instantly shut down or limit faulty outputs to protect both the power supply and connected system components from damage.
5. Hot-Swappable Design

   Supports hot-swapping (replacement under power) without shutting down the entire INFI 90 system. This feature drastically reduces system downtime during maintenance or module replacement, ensuring continuous process operation.
6. Advanced Thermal Design

   Features a robust, integrated heatsink for efficient heat dissipation. The design allows reliable operation within a wide temperature range, ensuring stable performance even in poorly ventilated or high-temperature industrial environments.
7. Real-Time Diagnostics & Status Monitoring

   Equipped with dedicated LED indicators for each voltage rail and a central fault LED. This allows operators and maintenance personnel to instantly visualize the operational status and quickly identify faulty channels, facilitating rapid troubleshooting and minimizing system outages.
8. Rugged Industrial Construction

   Built with high-grade components to meet stringent industrial standards. It offers superior immunity to electromagnetic interference (EMI) and electrical noise, ensuring consistent performance in environments with high levels of electrical interference.

Application Scenarios

• Oil & Gas Refining & Processing

  Provides stable power for control systems in refineries, offshore platforms, and pipeline operations, ensuring safe and precise control of pressure, temperature, and flow in critical hydrocarbon processing.
• Power Generation (Thermal, Hydro, Nuclear)

  Powers the DCS for boiler control, turbine governing, and substation automation in power plants, maintaining grid stability and reliable energy production.
• Chemical & Petrochemical Manufacturing

  Supports reactor control, material dosing, and safety instrumented systems (SIS) in chemical plants, where consistent power is critical for preventing hazardous process deviations.
• Metals & Mining (Steel, Aluminum, Minerals)

  Ensures uninterrupted power for furnace controls, material handling, and processing lines in heavy industrial environments characterized by high temperatures and dust.
• Water & Wastewater Treatment

  Supplies power to control systems for water purification, sewage treatment, and distribution networks, ensuring reliable operation of pumps, valves, and filtration systems.
• Pharmaceutical & Food & Beverage Production

  Provides clean, stable power for highly regulated processes requiring precise control of temperature, pH, and mixing, ensuring product quality and compliance with industry standards.
• Pulp & Paper Manufacturing

  Supports control systems for drying, pressing, and winding processes, where continuous operation and precision are essential for product quality and production efficiency.