IS200DSPXH1D is a drive DSP control card and is part of the GE Speedtronic MKVI gas turbine control.

The DSPX performs most of the I/O interface and inner loop bridge control and protection functions.

The DSPX board is the main controller and shares control responsibility with the ACLA. It is a single-slot, 3U high module located in the control rack next to the ACLA.

It provides functions including the bridge firing circuit control, I/O processing, and inner loop regulation as follows:

• Field Voltage Regulator (FVR)

• Field Current Regulator (FCR)

• SCR gating signals to the ESEL board

• Start-stop function

• Field flashing control

• Alarms and trip logic

• Generator instrumentation processing

• Generator simulator