ABBUAC383AE01full assembly serves as the digital logic signal transfer hub of UNITROL excitation control systems, undertaking all on-site switch quantity signal acquisition and protection action output tasks. It receives interlock signals from circuit breakers, cooling fans, PT/CT fault contacts and generator protection relays, and outputs trip, alarm and excitation on/off relay signals to field actuators. Through DDCS fiber communication, it exchanges real-time digital status data with UNITROL core main control boards such as UFC765AE102, realizing coordinated closed-loop control and full-range fault interlock protection of the whole excitation system. All channels pass 2000V AC isolation test to avoid signal breakdown caused by grid surges and rectifier harmonic noise. Each finished UAC383AE01 set undergoes strict factory aging calibration and functional testing; built-in LED status indicators and non-volatile fault log storage greatly simplify on-site troubleshooting. Matched with official CMT1000 excitation commissioning software, it is a core maintenance spare part for aging excitation equipment in global power generation industries.
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Digital Input Channels: 16 isolated passive digital input channels
Input Signal Type: Dry contact passive signal, compatible with cabinet interlock contacts
Digital Output Channels: 8 relay isolated output channels
Relay Contact Rating: 2A / 250VAC resistive load for alarm & trip control
Channel Isolation Grade: 2000V AC galvanic isolation per signal channel
Built-in Protection: Per-channel overvoltage, surge suppression and low-pass filter
Signal Response Speed: Input response ≤1ms, relay output action ≤5ms
DDCS Fiber Optical Port: Single independent optical channel for main control board data exchange
Internal Backplane Bus: Inter-board parameter synchronization and status sharing
Transmission Delay: Fiber communication data delay ≤20μs
Port Isolation: Communication circuit fully isolated from digital I/O signal loops
Auxiliary Operating Power Supply: DC 24V, fluctuation tolerance 18V ~ 32V
Typical Full-Load Power Consumption: 32W
Non-Volatile Flash Memory: Store up to 1000 timestamped fault & operation logs
Data Retention: Historical records permanently stored without battery backup
Installation Method: Standard UNITROL cabinet backplane plug-in modular structure
Overall Dimensions: 220mm × 165mm × 42mm
Single Board Net Weight: 0.35kg; Full Kit Total Weight: 0.72kg
Continuous Operating Temperature: -25℃ ~ +70℃
Storage Temperature Range: -40℃ ~ +85℃
Ambient Humidity: 5% ~ 95% non-condensing
PCB Surface Protection: Full conformal anti-corrosion coating
EMC Compliance Standard: IEC 61000-6-2 industrial anti-interference standard
Safety Certifications: CE, UL, RoHS certified
Industrial MTBF: ≥92,000 hours stable operation
Applicable Excitation Systems: ABB UNITROL 1000, UNITROL 5000, UNITROL 6000 digital excitation series
Matched Main Control Boards: UFC765AE102, UNITROL1000 3BHE014557R0003 core controllers
Upper DCS Control Platforms: ABB Symphony Plus, AC800M, System 800xA
Official Commissioning Tool: ABB CMT1000 Excitation Parameter Configuration & Debug Software
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16 isolated digital inputs + 8 relay digital outputs, full coverage of generator excitation interlock and protection logic signal access
2000V AC independent channel isolation design, strong anti-surge and anti-electromagnetic interference capacity
DDCS fiber optical communication, completely isolate low-voltage signal circuits from high-power rectifier units
Full conformal coated PCB, stable long-term operation in high-humidity, dusty and coastal salt-mist power station environments
Per-channel built-in filter and surge suppression circuits, effectively eliminate harmonic interference from thyristor rectifiers
Real-time self-diagnosis with front-panel LED fault indicators, rapid positioning of wiring breakage or channel failure
Non-volatile fault log storage with millisecond timestamps, convenient post-failure equipment operation analysis
Standard UNITROL rack plug-in module, support hot-swap single-board maintenance without cabinet power cut-off
Visual channel logic configuration via CMT1000 software, greatly reduce field engineering debugging workload
Unified standard spare part, fully plug-and-play interchangeable with all batches of UAC383AE01 modules
All-in-one Complete Kit: Pre-equipped terminals, fiber cables and operation manuals, one-stop procurement avoids accessory matching errors
High Signal Reliability: Reinforced isolation design effectively reduce board burnout risks caused by field wiring faults and grid surges
Low Maintenance Cost: Industrial long-life electronic components, minimal daily inspection and maintenance requirements
Ultra-Wide Compatibility: Perfect matching with all mainstream UNITROL excitation systems, ideal for old power plant cabinet renovation and replacement
Extreme Environment Adaptability: Wide temperature working range and anti-corrosion coating suitable for northern cold hydropower stations, tropical coastal offshore platforms and high-temperature thermal power plants
Grid Standard Compliance: Stable signal collection ensures accurate execution of FRT low voltage ride-through and generator protection logic required by ENTSO-E grid codes
Global Export Qualified: CE & UL safety certification, meet technical standards of power generation projects in all overseas regions
Cabinet Space Saving: Integrated multi-channel digital I/O design avoids extra external relay signal modules, optimizing internal cabinet layout
Conventional Power Generation Industry
Thermal power plant UNITROL 5000/6000 excitation cabinet digital interlock signal acquisition module
Hydropower and pumped storage generator digital excitation protection output control board
Gas turbine, biomass distributed power station excitation system upgrade replacement spare part
New Energy Power Equipment
Onshore & offshore wind turbine synchronous generator excitation cabinet signal interface unit
Grid-connected energy storage station generator auxiliary equipment interlock control module
Heavy Industrial Self-Generating Power Stations
Steel mill large synchronous motor power factor control excitation signal processing board
Mine independent power plant generator excitation cabinet daily maintenance spare parts
Offshore & Oil Engineering
Offshore drilling platform self-contained power generator UNITROL excitation digital I/O board
Coastal chemical plant anti-salt mist excitation cabinet core signal interface module
Automation Retrofit & Renovation Projects
Direct replacement of aging digital signal boards of old ABB UNITROL excitation cabinets
Upgrade of traditional discrete relay control to integrated digital isolated signal acquisition system
Marine Onboard Power Systems
Vessel main synchronous generator digital excitation cabinet interlock and protection control PCB
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We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.
Who can I contact if I encounter any problems?
Our experienced customer service team will handle any issues after you place your order.