ABB XVC769AE101 3BHE006373R0101 Optical Excitation Interface Board (OEI‑Board)

Description

Hardware & Electrical Specifications

• Model：XVC769AE101
• Part Number：3BHE006373R0101
• Module Type：Optical Excitation Interface Board (OEI‑Board)
• Bus Interface：Internal converter system back‑plane signal bus
• Signal Channel：Multi‑channel fiber‑optic trigger output ports, fiber‑optic status feedback input channels
• Power supply：24 V DC (18‑32 V DC)
• Max power consumption：10 W
• Galvanic isolation：≥2500 V AC between power‑unit optical side and control‑logic side
• Dielectric strength：2500 V AC 1 minute
• Insulation resistance：＞100 MΩ @ 500 V DC
• On‑board protection：ESD protection, surge suppression, hardware fault latch circuit, conformal coated PCB
• Compatibility note：Cannot run standalone; dedicated for ACS6000 / Megadrive‑LCI converter rack, must match corresponding system firmware version.

Environmental Specifications

• Operating temperature：‑10 ℃ ~ +60 ℃
• Storage temperature：‑40 ℃ ~ +85 ℃
• Relative humidity：5%‑95% non‑condensing
• Installation location：Inside high‑power converter cabinet rack
• EMC compliance：IEC 61000‑6‑2
• Certifications：CE

Mechanical Data

• Installation：Plug‑in rack‑mount eurocard board
• Interfaces：Internal back‑plane connector; front‑panel multi‑channel fiber‑optic ports
• Recommended wire cross‑section：0.75 mm²‑2.5 mm² copper cable for auxiliary signal terminals
• Terminal tightening torque：0.6‑1.0 N·m
• Weight：approx 0.75 kg
• Dimension：Standard Euro‑card for ABB high‑power converter rack

Main Functions

1. Encode trigger timing commands from main processor, convert electrical signals into optical firing pulses for IGCT power units.
2. Receive optical status feedback signals from power semiconductors, convert optical signals back to electrical logic signals.
3. High‑voltage galvanic isolation via fiber‑optic link, suppress heavy electromagnetic interference between control rack and power cabinet.
4. Hardware fault latch: capture trigger loss and power‑unit feedback fault, output fault status to main control board.
5. Board‑level self‑diagnosis: monitor on‑board power‑supply and internal logic circuit, report hardware alarm codes to converter system.
6. LED status indication:
   • Green LED：Power supply normal, board logic healthy
   • Yellow LED：Optical trigger / feedback signal active
   • Red LED：Trigger channel fault / power‑unit feedback fault / board hardware fault

Installation & Wiring Requirements

1. Cut off cabinet total power before replacement. Insert XVC769AE101 into assigned rack slot and tighten mounting screws. Hot‑swap is strictly forbidden.
2. Connect optical fibers strictly according to marking definition; separate high‑power cables and weak‑signal cables to reduce electromagnetic interference.
3. Cabinet protective grounding shall comply with ABB ACS6000 / Megadrive‑LCI grounding specification.
4. After replacement, confirm firmware compatibility, complete trigger pulse test and power‑unit feedback verification before commissioning.
5. Replacement note: Cross‑version substitution requires hardware‑firmware compatibility validation.