About the IS200DSFCG1ACA
The IS200DSFCG1ACA is a combination IGBT Gate Driver/Shunt Feedback board from the Mark VI Speedtronic line. This series of circuit boards originally manufactured by General Electric were used in association with gas, steam, and wind turbine control and management systems. This set of possible functional applications must be summarized as a significant functional upgrade upon those introduced with the earlier industry-standard Mark V Turbine Control System Series of a similar full extended product series title, as the Mark VI Series attached the alternative energy-minded wind turbine possible functional environment onto the gas and steam applications already introduced in the Mark V. This IS200DSFCG1ACA device's greater Mark VI Series is additionally seen as desirable on relevant global markets for its status as one of the final-distributed GE Mark product series to utilize the patented Speedtronic control system technology across a wide range of product offerings.
Hardware Tips and Specifications
The IS200DSFCG1ACA is rated at 1000/1800 amps. It includes a fault detection circuit along with two IGBT gate drive circuits and a current sensing circuit. Both the feedback and driver circuits have been optically and galvanically isolated. The IS200DSFCG1ACA is a nearly square circuit board with four factory-drilled mounting holes, one per corner. There are additional eyelet connectors throughout the body of the board. The board also features stab-on and plug connectors for output phase voltage sensing and DC link voltages. Two fault types can be detected on the IS200DSFCG1ACA model through the driver circuits. The faults are a desaturation fault and an undervoltage fault. The faults will be reported through a multiplexed differential fault for both lower and upper IGBT circuits. The undervoltage fault will be indicated when the voltage between the +15 and -15 V supplies drops below 20 V. The desaturation fault on the IS200DSFCG1ACA model will be indicated when the gate driver is commanded to turn the IGBT on, and the voltage drop between the collector and emitter of the IGBT is monitored; when the voltage exceeds 10 V for longer than four microseconds a desaturation fault will be called. When the desaturation fault has occurred on the DSFC model the BPIB board will operate the DSFC board in burst mode, where a PWM signal of 2 MHz is used to slowly decrease the gate voltage to zero.
Additional components on the IS200DSFCG1ACA include five LED indicators marked DS1 through DS5, which display the DC link and IGBT driver status. The board is also populated with resistors and resistor network arrays, capacitors, a transformer, over twelve integrated circuits, and three transistors. There are two LED colors on the DSFC board. The yellow LED indicates when the IGBTS are on or off; when the LED is on, it indicates that the IGBTS are driven on. The green LED will be on when the IGBTs are driven off. For additional information about the IS200DSFCG1ACA, including detailed information regarding proper installation and handling procedures, please refer to the GEI-100263 instruction manual. The manual also contains a block diagram of the DSFC board, which is located on page three of the manual. This IS200DSFCG1ACA device is actually not the originally-developed printed circuit board product offering of its specific GE Mark VI Series functional role, as that would have to be considered the IS200DSFCG1 parent circuit board device notably not making use of this IS200DSFCG1ACA product's three-fold significant revision history.
