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This module is part of ABB's industrial automation and drive systems. Its most specific documented function is as an EOI (Emitter Output Interface) board for the ACS6000 medium-voltage drive, where it serves as the core interface between the controller and the power unit .

Category Specification

Order Number 3BHE039426R0101

Functional Model UFC912A101

Type EOI Board (Emitter Output Interface) / Control Board

Primary Application ABB ACS6000 Medium-Voltage Drive

Control Supply 24V DC (logic circuit)

Input Signal Controller digital trigger signal (TTL level)

Output Channels IGBT gate drive circuit for ACS6000 power unit

Isolation Voltage ≥2.5kV AC

Response Time ≤10μs (fault response)

Operating Temp 0°C to 50°C (some listings: -40°C to +70°C)

Protection Rating IP20

Weight ~0.4kg to 2.5kg (varies by source) 

Signal Driving: Amplifies isolated digital trigger signals from the controller to drive IGBT gates .

Fault Detection: Collects overcurrent, short-circuit, and over-temperature feedback signals from power devices .

Fast Protection: Achieves fast fault lockout with response time ≤10μs .

Diagnostics: Real-time interface loop status monitoring with fault alarm output .

Metallurgy: Rolling mill drives .

Power Generation: Large fans and pumps .

Industrial Drives: Compressors and high-power variable frequency drive systems .

Mounting: Standard slot installation in ACS6000 drive control cabinet; supports hot-swapping .

Environment: Use in a clean, dry control cabinet with adequate ventilation.

Maintenance: Check contact status and diagnostic LEDs regularly. Use built-in self-diagnostics for early fault warnings.

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