GE DS200DDTBG2ABB | LCI Auxiliary I/O Terminal Board

The GE DS200DDTBG2ABB is a high-density LCI (Load Commutated Inverter) Auxiliary I/O Terminal Board designed for the General Electric Speedtronic Mark V control system. This module serves as a critical junction for high-speed I/O signals, facilitating the connection between field instrumentation and the main control architecture. It is specifically engineered to handle the rigorous signal requirements of LCI systems, providing reliable termination, signal isolation, and efficient routing to ensure precision in turbine starting and drive control operations.

Product Specifications

• Model: DS200DDTBG2ABB
• Manufacturer: General Electric (GE)
• Series: Mark V (Speedtronic) / LCI System
• Dimensions: Approximately 11.00 inches x 8.00 inches x 1.50 inches
• Weight: Approximately 1.30 lbs
• Country of Origin: United States

Frequently Asked Questions

💡 What is the primary function of this Terminal Board in an LCI system? It serves as the physical interface for auxiliary I/O. It collects signals from various sensors and switches related to the LCI drive, such as cooling system status, contactor positions, and synchronization feedback, routing them to the processor for real-time monitoring and control.

💡 What does the “G2ABB” suffix indicate? The “G2” denotes the specific version of the board optimized for LCI auxiliary applications, while “ABB” indicates the revision status. This ensures that the board contains the necessary circuitry for the specific voltage and signal thresholds required for LCI drive protection and auxiliary management.

💡 Why is this board critical to LCI drive reliability? LCI systems operate at high power and are subject to significant electrical noise. This board is designed with specialized trace layouts and noise-suppression components that prevent electromagnetic interference from corrupting critical feedback signals, which could otherwise cause drive trips or instability.

💡 How can I troubleshoot communication issues between the board and the main controller? Begin by inspecting the edge connectors and ribbon cable interfaces for signs of corrosion or misalignment. Use a digital multimeter to verify that the auxiliary power supply rails (typically 24V DC) are stable at the terminal input, as fluctuations here are the most frequent cause of intermittent signal loss.

Recommended Alternative Models

For comprehensive maintenance and support of your GE LCI and Mark V control panels, the following related I/O and terminal modules are frequently referenced:

1. DS200DDTBG1ABB
2. DS200DTBIG1A
3. DS200CTBAG1ACC
4. DS200ACNAG1A
5. DS200ADVCG1A
6. DS200CPBAG1A
7. DS200PCCAG1A
8. DS200SHVMG1A
9. DS200DCFBG1A
10. DS200TCCAG1B