Description
Hardware & Electrical Specifications
- Model：UCD240A101
- Part Number：3BHE022287R0101
- Module Type：Fiber‑Optic Valve Trigger Interface Board
- Bus Interface：Internal PPA high‑speed back‑plane bus for main‑processor data interaction
- Optical Interface：Multi‑channel fiber transmit / fiber receive ports for thyristor valve trigger & feedback
- On‑board Resource：Electrical‑optical conversion circuit, optical signal receiving circuit, pulse‑signal logic processing unit
- Power supply：24 V DC cabinet internal power supply
- Max power consumption：15 W
- Galvanic isolation：Complete galvanic isolation realized by fiber transmission, withstand high potential difference between control cabinet and high‑voltage valve deck
- On‑board protection：Surge suppression, ESD protection, optical‑signal loss detection circuit, conformal coated PCB
- Compatibility note：Must match UNITROL6000 full‑system firmware; cannot operate standalone, must cooperate with PPC‑series main‑processor hardware.
Environmental Specifications
- Operating temperature：‑10 ℃ ~ +60 ℃
- Storage temperature：‑40 ℃ ~ +85 ℃
- Relative humidity：5%‑95% non‑condensing
- Protection degree：Installed inside excitation / converter cabinet rack
- EMC compliance：IEC 61000‑6‑2 industrial electromagnetic immunity standard
- Certifications：CE
Mechanical Data
- Installation：Plug‑in rack‑mount board, inserted into designated slot of UNITROL6000 / PCS6000 cabinet
- Interfaces：Internal back‑plane PPA bus connector; external multi‑channel fiber optic interfaces
- Suitable wire cross‑section：0.75 mm²‑2.5 mm² copper cable for power‑supply terminals
- Terminal tightening torque：0.6‑1.0 N·m
- Weight：approx 0.85 kg
- Dimension：Standard Euro‑card form‑factor for AC800‑PEC rack
Main Functions
- Electrical‑optical conversion for trigger pulse: Converts electrical firing‑pulse commands from main processor into optical trigger signals, transmits to thyristor valve units via optical fiber.
- Optical feedback‑signal receiving: Receives optical status feedback signals fed back by power thyristor valves, converts optical signals into digital electrical signals.
- High‑potential isolation: Uses fiber communication to achieve complete isolation between low‑voltage control rack and high‑voltage power valve deck, restraining high‑voltage interference and protecting control‑side hardware.
- Optical‑channel fault diagnosis: Detects optical‑fiber breakage, signal loss, abnormal trigger feedback, uploads detailed fault codes to main processor.
- Real‑time status forwarding: Uploads valve working‑status data to main processor for excitation closed‑loop control and power‑valve protection logic judgment.
- Board‑level comprehensive self‑diagnosis: Monitors on‑board power‑supply, pulse‑processing logic and optical transceiver running status; uploads hardware‑fault alarm information to UNITROL6000 system.
- On‑board multi‑LED status indication
- Green LED：Board power supply normal, board logic running healthy
- Yellow LED：Fiber trigger / feedback signal communication active
- Red LED：Optical‑channel fault / board hardware fault alarm
Installation & Wiring Requirements
- Cut off cabinet total power before disassembly and assembly. Insert UCD240A101 into designated rack slot and fasten fixing screws firmly. Hot‑swap is strictly forbidden.
- Connect corresponding optical fibers to optical ports, strictly follow fiber‑routing specification; avoid excessive bending and extrusion of optical fibers. Connect internal 24 V DC power‑supply terminals according to drawing.
- Cabinet protective grounding must comply with ABB AC800‑PEC / UNITROL6000 system grounding specification.
- After replacement, verify full‑system firmware compatibility with main processor board; download matching project parameters; perform optical‑channel link test and valve trigger function test before unit commissioning.
- Replacement note: Cannot run independently; must match corresponding main‑processor hardware and full‑system firmware version.
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