I/O modules

Core Signal Interface for Drive and Turbine Control

The GE DS200STBAG1A is a Basic Drive Terminal Board for the Mark V Speedtronic turbine control system . This board provides the essential connection points for most signal-level I/O in industrial drive applications . It serves as a compact alternative to the larger Drive Terminal Board (NTB/3TB), LAN I/O Terminal Board (LTB), and Relay Terminal Board (RTBA) for systems requiring only fundamental I/O functions . Consequently, this module is vital for signal routing and system configuration in gas and steam turbine control environments.

Designed for High-Flexibility Configuration

The DS200STBAG1A includes four factory-use connectors (CP1PL, CP2PL, CP3PL, CP4PL) that provide 115 VAC power for panel testing purposes . It also features numerous hardware jumpers enabling users to configure the board for specific applications, such as JP4 and JP5 for RS-232C serial communication . The board connects to the drive control card via the 6PL and 8PL connectors and to the customer interface via the COMPL RS-232C serial link . Furthermore, its terminal block connector provides 66 screw-type terminal points in two rows for customer wiring .

Technical Specifications and System Compatibility

The board provides a range of power outputs, including regulated +5V DC and ±15V DC with a 250 mA capacity each, unregulated 124V DC at 500 mA, and 120V AC at 0.4 A . It supports a differential A-quad-B encoder interface, jumper-selectable for 5V or 15V encoders . The STBA includes seven relays (120V, 0.5A rating), four analog input channels, and four 8-bit ±10V analog output channels . The following table summarizes its key specifications.

Application in Industrial Drive Systems

System integrators use this board to provide a simplified and cost-effective I/O termination point for drives requiring only basic functions . Its jumper configurability allows engineers to adapt the board to specific application needs, such as selecting positive or negative logic for the digital control inputs (CI1-CI8) via jumpers JP10 and JP11 . The GE DS200STBAG1A is an essential component for maintaining and supporting Mark V turbine and drive systems, ensuring signal integrity and reliable operation in industrial automation.

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