SPECIFICATIONS

Part Number: IS220PTURH1A
Manufacturer: General Electric
Series: Mark VIe
Function: I/O PACK

IS220PTURH1A is a Primary Turbine Specific Primary Trip Pack and is part of the General Electric Speedtronic Mark VIe gas turbine control. This component connects a turbine control terminal board to one or two Ethernet networks via an electrical interface. This pack’s outputs are routed through a DC-62 pin connection that connects to a terminal board. The IS220PTURH1A has a black outside shell with air circulation holes. This case contains various LED indicators on the front, as well as an IR receiver (infrared port.) This bundle does not use this port. A CPU board, a second board dedicated to turbine control, and an analog acquisition auxiliary board are all housed within this case.

The TTURH1C terminal board is used to mount the pack. Two 10/100 Ethernet ports, flash memory, RAM, a read-only chip for identification, an internal temperature sensor, and a reset circuit are all on the processor board.

The IS220PTURH1A allows for Auto-reconfiguration, which will automatically download from the controller to the I/O pack. The reconfiguration includes baseload, bootload, firmware, and parameters. Auto-reconfiguration must be enabled for this to occur. This is enabled or disabled in the Toolbox ST application through the Component Editor. The IS220PTURH1A has an interface with four passive, magnetic speed inputs. Circuit sensitivity can allow detection of 2-RPM turning gear speed to determine if the turbine has dropped to zero speed (turbine has stopped.)  The median speed signal on the pack is used for speed control and for primary overspeed trip signal.