ABB AINT-02C Main Interface Board – ACS800 Fiber-Optic Board – Tested

Product Overview

Original ABB AINT-02C main circuit interface board for ACS800 series drives. Located between the RMIO control board and IGBT power stage, this board handles all analog signal interaction and fiber-optic communication. It monitors DC bus voltage, three-phase output current, and heatsink temperature, relaying real-time data back to the control board. Two fiber-optic channels provide galvanic isolation between control and power stages.

Key Features

• Genuine ABB original – for ACS800 series drives (R2–R8 frames)
• Main circuit interface board – RMIO to IGBT power stage bridge
• 2 fiber-optic communication channels (HFBR 650 nm, ~5 MBd)
• Monitors DC bus voltage, output current, heatsink temperature
• 24V DC supply from APOW-01C (~120 mA)
• Conformal coated PCB – enhanced environmental protection
• Original pulled – no repair history

Specifications

Compatibility Note

• Compatible with ACS800-04 series (R2–R8 frames) and some ACS880 cabinets
• Direct replacement for AINT-02 (older version) – same slot
• NOT compatible with AINT-12C or AINT-14C (different fiber channel count)
• Requires APOW-01C power board for 24V supply
• Verify drive model and hardware version before ordering

Quality Assurance

• Original pulled from working drive; tested functional with no repair history
• Actual photos sent before shipping
• Test video available upon request
• ESD anti-static packaging