General Electric IS200TBTCH1CBB Discrete Input/Output Board

IS200TBTCH1CBB is a Discrete Input/Output Board developed by General Electric. It is a part of Mark VI turbine control system. The TSVO connects to two electro-hydraulic servo valves, which operate the steam/fuel valves. Linear variable differential transformers are used to measure valve position (LVDT).

IS200TBTCH1CBB Description:

The servo board has four channels: bi-directional servo current outputs, LVDT position feedback, LVDT excitation, and pulse rate flows inputs.

The TSVO can excite and accept input from up to six LVDT valve position inputs. For each servo control loop, one, two, three, or four LVDTs are available. 

These terminal blocks can be unplugged from the board if/when they need maintenance. It is worth noting the “1C” version of this board is for simplex applications only, due to its two DC-type connectors. 

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