ABB IEPAS02

ABB IEPAS02

Product Introduction:
The ABB IEPAS02 is a critical AC system power supply module designed specifically for the Bailey INFI 90 distributed control system. It serves as the primary power source, converting incoming AC line voltage into the highly regulated DC voltages required by various system modules to ensure stable and continuous industrial process control.

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Category: SKU: ABB IEPAS02

Description

ABB IEPAS02

Technical Specifications:

  • Input Voltage: 120/240 VAC (50/60 Hz)
  • Output Voltages: +5 VDC, +15 VDC, -15 VDC, and +24 VDC
  • Compatible Mounting Units: IEMMU11 (rear mount) and IEMMU12 (front mount)

Functional Features:

  • High-Precision Regulation: Delivers extremely clean and stable DC power, protecting sensitive control circuits from voltage fluctuations.
  • Status Monitoring: Continuously monitors power health and generates a Power Fail Interrupt (PFI) signal to the system in the event of a fault.
  • High Reliability: Engineered for continuous industrial operation with exceptional surge and interference immunity.

Application Scenarios:
Widely deployed in power plants, chemical processing, and metallurgy within Bailey INFI 90 and Symphony series control cabinets to supply power to process control and I/O modules.

Performance Parameters:

  • System Compatibility: Fully backward-compatible with INFI 90 and Symphony Harmony systems.
  • Output Quality: Extremely low ripple and noise levels.

Material Composition:
Housed in a high-strength, flame-retardant engineering plastic enclosure. Internal core components utilize industrial-grade, long-life capacitors and high-frequency transformers, with PCBs receiving strict conformal coating treatment.

Structural Features:
Standard modular packaging featuring high-reliability industrial pins on the back for direct backplane insertion. The front panel is equipped with LED indicators for operational status and fault diagnostics.

Working Principle:
The module receives AC power from the power entry panel (e.g., IEPEP01/02/03). Through internal AC transfer modules and rectification/inversion circuits, it converts this power into +5V, ±15V, and +24V DC, distributing it to other system modules via the backplane bus.

Installation Requirements:
Must be installed in a designated Module Mounting Unit (MMU). Ensure the backplane connectors are perfectly aligned and fully seated, and maintain an adequate cooling airflow within the cabinet.

Usage Precautions:
Never insert or remove the module while energized. Before replacement, confirm that the input AC power is completely disconnected and wait for internal capacitors to fully discharge. Regularly inspect input terminals for looseness.

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