IC3603A277C

IC3603A277C is a thermocouple AVG module developed by GE, part of the Mark I and II control systems. It is designed to manage temperature-related tasks with exceptional accuracy, playing a vital role in monitoring and controlling temperatures to ensure safety and efficiency.

System LED Conventions

• Indicating Voltage Levels: LEDs are used to signify voltage levels within the system. A high voltage level (logic 1 state) is indicated by an illuminated LED, while a low voltage level (logic 0 state) is represented by a turned-off LED.
• Red LED for Trip State: A red LED indicates a trip state, which corresponds to a high voltage level. When illuminated, the red LED signals that the represented signal is in a trip condition, crucial for identifying and responding to critical situations promptly.
• Green LED for Run Condition: A green LED signifies a run condition, associated with a high voltage level. When on, the green LED shows that the system is in a run state. It turns off to indicate a trip condition, characterized by a low voltage level.
• Yellow LED for Transitional Signals: Yellow LEDs monitor signals whose trip status changes as the turbine undergoes transitions during its operational sequence. For example, during turbine start-up, the overspeed signal typically remains high (illuminated). As the turbine's speed surpasses the threshold required to trigger the 14HS signal (becoming logic 1), the overspeed signal switches to a low voltage state (LED off). Yellow LEDs indicate a tripped condition when the turbine operates at speeds exceeding 14HS, offering a dynamic way to monitor changing conditions during turbine operation.