Description
ABB PCD235A101 3BHE032025R01 UNITROL 6000 Exciter Control Module, AC800PEC Generator Excitation CIO Combined I/O Board, Power Generation Automation Spare Part
Product Application
PCD235A101 is a high-performance combined I/O exciter control module designed for ABB UNITROL 6000 and AC800PEC generator excitation systems. It collects generator voltage and current sampling signals, executes excitation regulation algorithm, outputs trigger pulses and implements fault protection interlock for synchronous generators.
- Thermal power plant generator excitation voltage regulation
- Hydropower station generator excitation closed-loop control
- Combined cycle power unit UNITROL 6000 excitation cabinet
- Grid-connected synchronous generator set stability control
- Industrial large synchronous motor excitation control
- Power plant excitation system retrofit and spare replacement
- Anti-disturbance control when grid fluctuation occurs
PCD235A101 3BHE032025R01
Specifications
- Part Number: PCD235A101, 3BHE032025R01
- Brand: ABB
- Product Type: Exciter Control Combined I/O Module
- Compatible System: ABB UNITROL 6000, AC800PEC
- Mounting: Eurocard rack mounting inside excitation cabinet
- Dimension: 373 × 142 × 38 mm
- Weight: Approx. 1.0 kg
- Power supply: Auxiliary DC power supplied via backplane
- PCB coating: Conformal coating for anti-corrosion and dust resistance
- Protection Class: IP20, cabinet installation only
- Condition: Original new / refurbished spare available
- Compliance: CE, IEC power control EMC standard
Parameters
- Control Response Time: <10 ms
- Voltage Regulation Accuracy: ±0.5%
- Signal Channels: Integrated multi-channel analog sampling, digital interlock and pulse output
- Communication: Internal high-speed backplane bus, supporting system redundant synchronization
- Built-in Logic: FPGA hardware logic for fast pulse generation and fault detection
- Operating Temperature: -25°C ~ +70°C
- Storage Temperature: -40°C ~ +85°C
- Relative Humidity: 5%~95% RH, non-condensing
- Shock & Vibration: Comply with IEC 60068 industrial vibration standard
- Status Indicator: On-board LED indicators for power, control running and fault alarm
Key Features
- Dedicated control I/O board for UNITROL 6000 excitation system, integrates sampling, regulation and pulse output functions
- Fast FPGA hardware logic, short response time to cope with grid transient disturbance
- High precision voltage regulation, maintain stable generator terminal voltage under variable load
- Comprehensive built-in self-diagnosis, detect channel fault and trigger excitation protection interlock
- Conformal coated PCB, reliable operation in power station dusty and electromagnetic interference environment
- Eurocard pull-out rack design, convenient on-site maintenance and module replacement
- Support redundant excitation architecture, improve power generation system availability
- Strict factory performance testing, critical spare for large generator excitation cabinet
PCD235A101 3BHE032025R01
ABB Same Series Related Models (≥6)
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- DATX110 3ASC25H209
- PC D230
Maintenance
- Routine inspection: Check PCB dust, backplane connector and LED status every 6–12 months
- Clean board surface with dry compressed air; liquid solvent cleaning is strictly prohibited
- ESD protection must be adopted during disassembly, anti-static wristband required
- If excitation regulation deviation or fault alarm occurs, power off and check signal wiring and backplane contact
- Stop operation immediately if PCB burn mark, corrosion or condensation are found
- We support function testing, refurbishment and spare replacement service for this PCD235A101 excitation module
Installation
- Cut off all high voltage and auxiliary power supply of excitation cabinet, confirm zero voltage before operation.
- Wear anti-static wristband to prevent electrostatic damage to FPGA and analog components.
- Open excitation cabinet door, release the locking mechanism of old PCD235A101 board.
- Pull out the Eurocard module gently, avoid scratching backplane pins.
- Insert new module along cabinet guide rail and lock firmly.
- Confirm backplane connection and signal wiring are fully seated.
- Restore power supply, perform excitation system self-test.
- Carry out no-load excitation test, verify voltage regulation performance and protection interlock function before commissioning.
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