DS200RTBAG3AEB is an RTBA series relay terminal board designed specifically by General Electric (GE) for the Mark V Speedtronic turbine control system, serving as an optional expansion card for drive cabinets or excitation cabinets.
Its core function is to provide 10 independent relay control interfaces for the Mark V system, enabling isolation and amplification of control signals, as well as reliable driving of field actuators such as valves, contactors, and circuit breakers.The board is equipped with 52 wiring terminals for signal and power connections, making it critical hardware for implementing logic control and linkage with field devices in industrial turbine control systems including gas turbines and steam turbines.
| Parameter | Specification |
|---|---|
| Part Number | DS200RTBAG3AEB |
| Series | GE Mark V DS200 Series |
| Relay Configuration | 10 relays: 7-channel DPDT (K20-K26), 3-channel 4PDT (K27-K29) |
| Contact Rating | DPDT: 2 Form C contacts, rated 10A; 4PDT: 4 Form C contacts, rated 1A |
| Coil Parameter | 110VAC/115VAC coil, compatible with 50/60Hz |
| Protection Design | 130VAC MOV (Metal Oxide Varistor) per relay for surge and overvoltage protection |
| Wiring Terminals | 52 wiring points for external signals, power and actuator wiring |
| Status Indication | Independent LED indicator for each relay, lights up when powered on for intuitive status feedback |
| Dimensions | Approx. 2 × 19 × 12.8 cm (L × W × H) |
| Mounting Position | Inside drive cabinet / excitation cabinet, plug-in installation |
| Operating Environment | Adapted to harsh industrial environments, temperature-resistant, humidity-resistant, anti-electromagnetic interference |
Key Features & Benefits
High-Reliability Industrial-Grade Design
- Built with industrial-grade relays and PCB materials, equipped with MOV surge protection and independent status indication to reduce failure risks.
- Plug-in structure and replaceable relays meet the high-stability demands of continuous operation in power generation, petrochemical and other industries.
Flexible Control & Drive Capability
- Relays support dual-mode driving:
- Directly driven by pilot relays from Mark V system LAN I/O terminal boards (e.g., 531X307LTB)
- User remote control supported
- Dual contact ratings (10A / 1A) are compatible with both small-signal control and high-current actuator drive, adapting to various load scenarios.
Easy Integration & Diagnostics
- 52 standardized wiring terminals simplify field wiring.
- Built-in diagnostic functions allow access to diagnostic routines via the drive control panel, enabling quick verification of relay configuration, troubleshooting of board and drive faults, and data download for offline analysis.
Deep Compatibility with Mark V Systems
- Custom-designed for the GE Mark V Speedtronic control system.
Works seamlessly with CPU boards, I/O boards and communication boards in the same series, expanding the system’s relay control capability without additional adaptation, ensuring overall system compatibility and stability.
Installation & Maintenance Guidelines
Installation Steps
- Power Off Operation: Cut off power to the drive cabinet/excitation cabinet before installation to ensure live-free work.
- Slot Positioning: Insert the board into the designated RTBA expansion slot in the Mark V system drive cabinet, align and fasten with the buckles.
- Wiring Configuration: Connect control signals, 110VAC power supply and field actuators via 52 terminals, strictly following the wiring specifications for DPDT and 4PDT relays.
- Drive Settings: Configure the relay drive mode (local/remote) through the control panel and verify that the LED status indicators function properly.
Maintenance Key Points
- Regular Inspection: Verify relay LED status monthly, measure terminal voltage with a multimeter (normal range: 0~1V), and troubleshoot disconnection or poor contact issues.
- Fault Replacement: Single faulty relays can be directly replaced by plugging/unplugging without replacing the entire board.
Environmental Protection: Keep the cabinet ventilated and dry to prevent contact oxidation caused by dust and humidity, extending service life.
Associated Systems & Equipment
- Core Control System: GE Mark V Speedtronic turbine control system (including CPU board, I/O board, communication module) – the control core of DS200RTBAG3AEB.
- Associated Boards:LAN I/O terminal board (e.g., 531X307LTB): Provides pilot relay drive signals.
- DS200 series power board (e.g., DS200DCFBG1B): Supplies stable power to the board.
- Field Equipment: Actuators (valves, contactors, circuit breakers), excitation systems, industrial pumps of gas/steam turbines – control linkage is achieved through relay contacts.
- Auxiliary Accessories:
- RPL connection cable: For expanding relay interfaces.
- Berg-type jumpers: For hardware configuration and function switching.
All GE Mark V RTBA series relay terminal boards are configured with 10 relays, differing only in hardware version, contact specifications and applicable scenarios, with compatible core functions. Recommended models:
- DS200RTBAG1A: Basic RTBA terminal board (7 DPDT + 3 4PDT), suitable for general turbine control scenarios.
- DS200RTBAG3A: Basic version of DS200RTBAG3AEB without AEB suffix hardware revision, consistent in function and core parameters.
- DS200RTBAG3AHC: High-protection version with optimized PCB coating, suitable for harsh environments such as marine and ship applications.
- DS200RTBAG4A: High-current optimized model with upgraded DPDT contact performance, suitable for high-load actuator drive.
- DS200RTBAG5: Simplified wiring version with 34 pluggable terminals, suitable for compact drive cabinet installation.
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