Product Details
The original IS215VPROH1A has been superseded by the functionally equivalent toIS215VPROH1B. IS215VPROH1A and IS215VPROH1B support a second TREG board driven from IS215VPRO connector J4. IS215VPROH2B is a lower power version of IS215VPRO that omits support for the second TREG board. Applications using a second TREG board connected to J4 must use IS215VPROH1A or IS215VPROH1B, not IS215VPROH2B.
Product Installation:
To install the V-type board
1. Power down the VME I/O processor rack.
2. Slide in the board and push the top and bottom levers in with your hands to seat its edge connectors.
3. Tighten the captive screws at the top and bottom of the front panel.
4. Start up the VME rack and check the diagnostic lights at the top of the front panel.
Product Operation:
The main purpose of the protection module is emergency overspeed (EOS) protection for the turbine, using three IS215VPRO boards. In addition, IS215VPRO has backup synchronization check protection, three analog current inputs, and nine thermocouple inputs, primarily intended for exhaust over-temperature protection on gas turbines.
The protection module is always triple redundant with three completely separate and independent IS215VPRO boards named R8, S8, and T8 (originally named X, Y, and Z).Any one of these boards can be powered down and replaced while the turbine is running without jeopardizing the protection system. Each board contains its own I/O interface, processor, power supply, and Ethernet communications (IONet) to the Mark VI controller.
The communications allow initiation of test commands from the controller to the protection module and the monitoring of EOS system diagnostics in the controller and on the operator interface. Communications are resident on the IS215VPRO board. The IS215VPRO board has a VME interface that allows programming and testing in a VME rack. However, the backplane is neutralized when plugged into the protection module to eliminate any continuity between the three independent sections.
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