GE DS215TCQEG1AZZ01A Circuit Board with Firmware

GE DS215TCQEG1AZZ01A Circuit Board with Firmware

GE DS215TCQEG1AZZ01A is a specialized Analog Input Board, known by its functional acronym TCQE, within the General Electric Speedtronic Mark V Turbine Control System Series.1

It is described as a “Circuit Board with Firmware” because it is a microprocessor-based component that requires a specific EPROM/PROM to function, which holds its operational program.

🌡️ Primary Function: Thermocouple and Analog Signal Processing

The main function of the TCQE board is to handle a large number of analog input signals, particularly those related to temperature and vibration monitoring, which are critical for turbine safety and control.

  • Thermocouple Inputs: This board is specifically equipped to read and process signals from a high number of thermocouples (often listed as fifteen core thermocouples), providing accurate temperature readings for turbine sections like the combustion chambers and exhaust.2
  • Vibration Inputs: It typically processes signals from vibration sensors to monitor the physical health of the rotating components.
  • Integration: The board processes these raw analog signals, converts them to digital values, and communicates the data across the Mark V’s internal networks (like the 3PL Bus and IONET) to the main control processors ($\text{R, S, T}$).
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The GE DS215TCQEG1AZZ01A is a specialized Analog Input Board, known by its functional acronym TCQE, within the General Electric Speedtronic Mark V Turbine Control System Series.1

It is described as a “Circuit Board with Firmware” because it is a microprocessor-based component that requires a specific EPROM/PROM to function, which holds its operational program.

🌡️ Primary Function: Thermocouple and Analog Signal Processing

The main function of the TCQE board is to handle a large number of analog input signals, particularly those related to temperature and vibration monitoring, which are critical for turbine safety and control.

  • Thermocouple Inputs: This board is specifically equipped to read and process signals from a high number of thermocouples (often listed as fifteen core thermocouples), providing accurate temperature readings for turbine sections like the combustion chambers and exhaust.2
  • Vibration Inputs: It typically processes signals from vibration sensors to monitor the physical health of the rotating components.
  • Integration: The board processes these raw analog signals, converts them to digital values, and communicates the data across the Mark V’s internal networks (like the 3PL Bus and IONET) to the main control processors ($\text{R, S, T}$).

⚙️ System Context

  • System Series: GE Speedtronic Mark V Gas and Steam Turbine Control.3
  • Location: The TCQE is an essential card in the Analog I/O Cores (R, S, T) of the Mark V control panel.
  • Role: Its high-density input capability is key to ensuring the Triple Modular Redundancy (TMR) control system has the necessary thermal and physical state data to execute control logic and protective trips.

As with other GE Mark V boards, if you are replacing the DS215TCQEG1AZZ01A, you must ensure the EPROM firmware chips are correctly moved from the old board to the new board to maintain the turbine’s specific configuration.

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