I/O modules

The GE DS200TCQBG1B DS200TCQBG1BCB provides extended analog I/O capabilities for Mark V turbine controls. You can install this board into the main turbine control cabinet. It handles analog sensor inputs and output signals for system actuators. This board suits gas and steam turbine monitoring applications.

Technical Specifications and Hardware Layout

The GE DS200TCQBG1B DS200TCQBG1BCB measures 280 mm in height. Its width reaches 185 mm, and the depth equals 30 mm. The GE DS200TCQBG1B DS200TCQBG1BCB weighs approximately 0.52 kilograms. A single multilayer PCB holds all analog conversion and interface circuits. The board contains no energy storage capacitors or batteries. Two 50-pin ribbon connectors provide system interface connections. Four test points allow signal monitoring with oscilloscope probes. Six status LEDs display board operating conditions.

Analog I/O Specifications and Performance

The GE DS200TCQBG1B DS200TCQBG1BCB provides eight analog input channels. It accepts 4 to 20 mA signals from pressure and temperature transmitters. This board also delivers four analog output channels for actuator control. Each output generates 4 to 20 mA signals with 12-bit resolution. Consequently, it provides precise control of turbine valves and dampers. Accuracy stays within 0.2 percent of full scale at 25°C. The board includes built-in signal filtering for noise rejection. Optical isolation separates analog signals from the digital backplane.

Installation and Diagnostic Features

You must insert the GE DS200TCQBG1B DS200TCQBG1BCB firmly into a dedicated Mark V rack slot. Transitioning to testing, use the four test points for signal verification. Six front LEDs show power, input status, and output activity clearly. For troubleshooting, use a multimeter at the test points. Always power off the system before removing or inserting the board. The operating temperature range spans from -20°C to +55°C reliably.

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