Product Short Description
Product Introduction
The ABB CMA136 3DDE300416 is a high-performance, industrial-grade generator relay terminal board designed for critical generator control, protection, and monitoring applications. It serves as a robust interface between generator field circuits, protection relays, and automation control systems, delivering reliable signal conditioning, isolation, and switching for synchronous generators and large motors. Built with industrial-grade components and advanced signal processing, this module integrates high-speed relay switching, universal analog input handling, and galvanic isolation to ensure stable operation in harsh industrial and marine environments. It is fully compatible with ABB Synpol D generator control systems, Advant OCS, and 800xA Distributed Control Systems, providing seamless integration for power generation facilities. The CMA136 features a compact, rugged design with comprehensive diagnostics, making it essential for maintaining generator operational safety, reliability, and optimal performance.
Description
Technical Specifications
Core Electrical & Relay Specifications
- Relay Configuration: 3 SPDT (Single Pole Double Throw) high-speed relay contacts
- Relay Contact Rating: Max. 10A current capacity; 230V AC operating voltage
- Input Channels: 32 universal analog input channels
- Supported Signal Types: Thermocouples (J, K, T, E, R, S, B, N), RTDs (Pt100, Pt1000), millivolt (mV), milliampere (mA), voltage (V), and potentiometer signals
- Resolution: 16-bit high-resolution analog-to-digital conversion
- Isolation Voltage: 1500 V AC galvanic isolation between input channels and power supply
- Measurement Accuracy: ±0.1% of full-scale measurement accuracy
- Sampling Rate: Maximum 10 samples per second per channel
- Response Time: Microsecond-level relay switching for rapid protection actuation
Power & Environmental Specifications
- Supply Voltage: 24 V DC / 230 V AC dual power support
- Current Consumption: ≤ 100 mA at 24 V DC
- Operating Temperature: -25 °C to +55 °C
- Storage Temperature: -40 °C to +85 °C
- Relative Humidity: 5%–95% RH (non-condensing)
- Vibration Resistance: IEC 60068-2-6 (10–2000 Hz, 2 g rms)
- Shock Resistance: IEC 60068-2-27 (15 g, 11 ms half-sine)
- Enclosure Rating: IP20 (indoor cabinet installation)
- Material: Flame-retardant thermoplastic (UL 94 V-0)
- RoHS Compliance: Fully compliant with EU RoHS 2 directive (2011/65/EU)
Physical & Mechanical Specifications
- Dimensions: 110 mm (W) × 105 mm (H) × 70 mm (D)
- Net Weight: 0.18 kg
- Terminal Type: Industrial-grade screw terminals with high clamping force
- Mounting: DIN rail or direct panel mounting in control cabinets
Communication & Compatibility
- Communication Interfaces: RS-232, RS-485, CAN I/O, Ethernet (TCP/IP, UDP)
- Supported Protocols: Modbus RTU, Modbus TCP, ABB proprietary protocols
- Baud Rate: 1200–115200 bps configurable
- System Compatibility: ABB Synpol D, Advant OCS, 800xA DCS, AC800M control systems
- Configuration Tools: ABB Synpol D configuration software, Automation Builder
Compliance & Certifications
- Standards: IEC 61010-1, IEC 61000-6-2 (EMC immunity), IEC 61000-6-4 (EMC emission)
- Certifications: CE, UL, cULus, CSA, marine type approvals (optional)
Functional Features
1. High-Speed Relay Protection & Switching
- 3 SPDT Relays: Provides three independent high-speed relay outputs for generator protection and control functions
- Fast Switching: Microsecond-level response time ensures rapid actuation for critical protection scenarios
- High Current Capacity: 10A contact rating handles heavy-duty control circuit requirements
- Contact Protection: Built-in surge suppression protects relay contacts from voltage spikes
- Fail-Safe Design: Relay contacts default to safe positions during power loss or system faults
2. Advanced Signal Acquisition & Conditioning
- 32 Universal Inputs: Accepts all standard industrial analog signals without hardware modification
- 16-Bit Resolution: Delivers exceptional measurement precision for generator parameters
- Galvanic Isolation: 1500 V AC isolation eliminates ground loops and electrical noise
- Signal Filtering: Built-in low-pass filtering provides clean, stable measurement data
- Auto-Calibration: Maintains measurement accuracy over extended operating periods
3. Robust Industrial Design & Reliability
- Dual Power Supply: Supports both 24 V DC and 230 V AC for flexible installation
- Wide Temperature Range: Operates reliably in extreme industrial environments
- Vibration & Shock Resistance: Withstands harsh conditions in power generation facilities
- Flame-Retardant Construction: UL 94 V-0 rated materials enhance safety
- Long Service Life: Industrial-grade components ensure high MTBF and minimal maintenance
4. Comprehensive Diagnostic Capabilities
- Real-Time Monitoring: Continuous monitoring of input signals, relay status, and communication
- Fault Detection: Identifies open circuits, short circuits, and signal out-of-range conditions
- LED Indicators: Visual status indicators for power, communication, and fault conditions
- Alarm Outputs: Configurable alarm relays for immediate fault notification
- Remote Diagnostics: Communication interfaces transmit detailed diagnostic data to control systems
5. Flexible System Integration
- Multi-Protocol Support: RS-232, RS-485, CAN I/O, and Ethernet for versatile connectivity
- ABB System Compatibility: Seamless integration with Synpol D, Advant OCS, and 800xA systems
- Modbus Compatibility: Supports Modbus RTU and TCP for third-party system integration
- Remote Configuration: Full parameter setup via communication interfaces
- Hot-Swappable Design: Allows module replacement without system shutdown
Application Scenarios
1. Power Generation Plants
- Thermal Power Plants: Provides generator differential protection and control in coal, gas, and oil-fired stations
- Hydroelectric Power Plants: Manages turbine generator protection and monitoring in dam installations
- Nuclear Power Plants: Ensures reliable generator control for reactor auxiliary systems
- Combined Cycle Power Plants: Integrates gas turbine and steam generator protection systems
2. Renewable Energy Generation
- Wind Turbines: Controls and protects generators in onshore and offshore wind farms
- Solar Thermal Systems: Manages steam generator control in concentrated solar power plants
- Biomass Power Plants: Provides generator protection for biomass-fired power facilities
- Geothermal Power Plants: Ensures stable operation of geothermal steam turbine generators
3. Industrial Backup Power Systems
- Data Centers: Controls emergency generator systems for critical IT infrastructure
- Hospitals: Manages standby generators for uninterrupted medical facility power
- Manufacturing Facilities: Protects backup power systems for continuous production
- Telecommunication Hubs: Ensures reliable generator operation for communication networks
4. Marine & Offshore Applications
- Shipboard Power Systems: Controls main and auxiliary generators in commercial vessels
- Offshore Platforms: Provides robust generator protection for oil and gas facilities
- FPSO Vessels: Manages power generation systems in offshore production units
- Port Facilities: Controls generator systems for port equipment and operations
5. Industrial Facilities & Utilities
- Oil Refineries: Protects generator systems for critical refining processes
- Chemical Plants: Ensures reliable backup power for chemical manufacturing
- Water Treatment Plants: Controls generators for water purification facilities
- Mining Operations: Manages power systems for underground and surface mining
6. Commercial & Infrastructure
- Airports: Controls emergency generators for airport operations
- Railway Systems: Protects backup power for signaling and electrification
- Commercial Buildings: Manages generators for large commercial facilities
- Sports Venues: Ensures uninterrupted power for large event venues






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