Product Description
The IS230TPROH2C is a small board component created as part of the Mark VI system. The Mark VI is one of the last of GE’s Speedtronic gas and steam turbine management systems. These systems focused on efficient management with multiple backups on critical controls to improve the reliability of gas and steam turbines.
The IS230TPROH2C is an Emergency Protection Terminal board. This small board provides the VPRO (Emergency Turbine Protection board,) with generator voltage, bus voltage, temperature signals, and speed signals. It is part of the VPRO system of independent emergency overspeed protection for the Mark VI. It is worth noting the IS230TPROH2C does not work with Mark VIe I/O packs.
The IS230TPROH2C is built with two terminal strips (blocks) located on the front edge of the board. Each of these terminal strips has 24 positions each. These components can be unplugged from the board if/when they need maintenance. There is a smaller terminal strip located along the right edge of the board. Two transformers are located along the right edge of the board next to MOVs (metal oxide varistors.) The board also has six connectors located along the back edge (JX1/JY1/JZ1, JX5/JY5/JZ5.) The board has two jumper switches (JPA1 and JPB1) that allow configuration of the board. The board has a read-only chip that includes the board’s type, revision number, serial number, and plug location. Any mismatch read by the VPRO board will cause a hardware incompatibility fault.
The IS230TPROH2C is mounted into a metal frame that surrounds the board on all four sides. This frame includes a shield bar along the front edge of the board. Please refer to user guides, manuals or data sheets for more information on the installation, wiring, or function of the IS230TPROH2C.