IS200VTCCH1CBB

Product Description

Model number IS200VTCCH1CBB is one of the Mark VI boards produced by General Electric. This model is designated as a thermocouple input and can accept up to twenty-four thermocouple inputs. The inputs on this model can be wired to either the DTTC or TBTC terminal boards. The TBTC terminal board is the associated terminal board, while the DTTC board is the DIN Euro-size terminal board. Depending on the TBTC model used with the VTCC model, it can be used in two different groups. The TBTCH1C model allows for simplex control, while the TBTCH1B model allows for triple modular redundant (TMR) control. There are also two groups of the VTCC models; the IS200VTCCH1CBB model is part of the first group, which indicates that the model can be used with gas turbine control applications. No matter which group the VTCC model is used in, the same terminal boards will be used. 

When the IS200VTCCH1CBB model is accepting thermocouple inputs, the types of inputs supported on the VTCCH1 model are E, J, K, S, and T thermocouples and mV inputs. The span of mV allowed on the VTCC model is -8 mV to +45 mV. The thermocouple inputs used with this model can be grounded or ungrounded and can be located up to nine-hundred and eighty-four feet from the associated turbine control cabinet. There are two cold junctions and high-frequency noise suppression devices mounted on the terminal board. 

When the IS200VTCCH1CBB model is operated in a TMR system, if one of the signals on the device varies from the median/voted value by more than the predetermined limit, then the signal will be identified and cause a fault. For more information on fault indication and available diagnostic checks on the VTCC model, refer to GE Manual GEH-6421.