ABB XXD129A01 3BHE012436R0001 PEC800‑BP Back‑Plane Interface Board

Description

Hardware & Electrical Specifications

• Model：XXD129A01
• Part Number：3BHE012436R0001
• Module Type：PEC800‑BP Back‑Plane Interface Board
• Bus Interface：AC800‑PEC high‑speed internal back‑plane bus
• Signal Channel：Multi‑slot module signal routing, system power distribution channels
• Power supply：24 V DC (18‑32 V DC), power fed from rack power unit
• Max power consumption：8 W
• Galvanic isolation：≥2000 V AC between field signal side and control logic side
• Dielectric strength：2000 V AC 1 minute
• Insulation resistance：＞100 MΩ @ 500 V DC
• On‑board protection：ESD protection, bus signal surge suppression, filter circuit, conformal coated PCB
• Compatibility note：Cannot run standalone; dedicated for AC800‑PEC 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 excitation / converter cabinet rack
• EMC compliance：IEC 61000‑6‑2
• Certifications：CE

Mechanical Data

• Installation：Plug‑in rack‑mount eurocard board
• Interfaces：Multi‑channel internal back‑plane slot connectors; auxiliary signal terminal blocks
• 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 0.65 kg
• Dimension：Standard Euro‑card for ABB AC800‑PEC rack

Main Functions

1. Physical and electrical interconnection for each plug‑in module inside AC800‑PEC rack.
2. Distribute 24 V system power supply to each functional board.
3. Route high‑speed back‑plane address, data and control signals between CPU and peripheral boards.
4. Signal filtering and impedance matching, restrain electromagnetic interference inside cabinet.
5. Bus‑level self‑diagnosis: detect bus communication abnormality and power‑supply distribution fault, report fault codes to main processor.
6. LED status indication:
   • Green LED：Power supply normal, back‑plane bus logic healthy
   • Yellow LED：Back‑plane bus communication active
   • Red LED：Bus communication fault / power distribution fault / board hardware fault

Installation & Wiring Requirements

1. Cut off cabinet total power before replacement. Insert XXD129A01 into assigned rack slot and tighten mounting screws. Hot‑swap is strictly forbidden.
2. Ensure each daughter board is fully seated into back‑plane connector; separate high‑power cables and weak‑signal cables to reduce electromagnetic interference.
3. Cabinet protective grounding shall comply with ABB AC800‑PEC / UNITROL6000 grounding specification.
4. After replacement, confirm firmware compatibility, complete rack bus communication test before commissioning.
5. Replacement note：Cross‑version substitution requires hardware‑firmware compatibility validation.