IS200VSCAH2AAB

About the IS200VSCAH2AAB

The IS200VSCAH2AAB is a GE Mark VI component.  The Mark VI is part of the Speedtronic series for gas and steam turbine management.   The MKVI meets or exceeds safety codes and standards, including UL508A Safety Standards for Industrial Control Equipment and UL 796 Code for Printed Circuit Boards.

The IS200VSCAH2AAB allows for data flow in two separate ways: either by fixed I/O or by Modbus I/O.  Fixed I/O data processes completely and requires a frame rate of 100 Hz. These signals have offset/gain scaling and use system limit checking.  Modbus I/O are not completely processed every frame, and are instead packetized and transferred over the IONet through a special service. This is known as a second class I/O.  

The IS200VSCAH2AAB includes a front faceplate that includes multiple components.  The top of the faceplate has three LED components. One of these is a green “Run” LED, another is a red “Fail” light, and the final is an orange “Status” LED.   These are placed above two cable connectors that are placed one above each other (J6 and J7.) The front panel connects to the PCB using three screw connects. The PCB is populated by resistors, capacitors, jumper switches, diodes, and connectors.  Connectors include two backplanes.

The IS200VSCAH2AAB is configured using the nineteen jumper switches located on the board.  This includes eighteen three-position jumpers that are used to select port electrical characteristics and termination configuration.   

More information on installation, diagnostics, and specifications of the IS200VSCAH2AAB board may be found in GE publication GEH-6421M “Mark VI Turbine Control System Guide Vol. II.”    If this publication has not been retained, AX Control will be happy to send this information with your order.