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First of all, you need to be specific about what you are asking. The tile of this thread implies Mark VI, and the body implies Mark VIe. The two are somewhat similar, but have some VERY BIG differences. Second, you need to determine what your immediate needs are. Do you need to troubleshoot...

Frank, What are the emissions doing--are they normal or are they higher or lower than normal (particularly the NOx and CO--coming out of the turbine)? When did this start? After a trip from load? After a maintenance outage? Has anyone tried replacing the combustion dynamics sensor on...

There at least three decent options for an HMI for GE Mark V turbine controls. 1) GE. Expect to spend at least USD50,000.00 or more, and expect the unit(s) to be down for as much as a week. It may also require PROM changes in the Mark V, maybe even card changes. It's messy, complicated...

alizareian67, The synch card is actually located on the left side wall of the Mark V (when looking into the panel from the open doors on the front of the panel).

MichaelD, Thanks for the information, but it's still not really clear what the plant has but I'm going to presume it's a Mark V turbine control system with a GE Mark V HMI running some version of MS-Windows and CIMPLICITY or PROFICY (read below). If you would provide more information instead...

alizareian67, If you are referring to the printed circuit board mounted on the upper right side wall of the Mark IV cabinet and you are working on a replacement turbine control system for the Mark IV using a non-GE turbine control system there's nothing to know about the card that will be of...

MichaelD, You have provided zero useful information for anyone to be much of any help whatsoever. What control system does the D-11 steam turbine use? When did this problem start? The Mulberry Cogeneration facility isn't exactly new, so it's unlikely the plant has been dealing with the...

Yes.

vijay, The best clarity you're going to get is to RTFM (Read The Fine Manual). In this case Section 7 (I believe) of the Mark V Application Manual, GEH-5980. There are very good drawings of servo-valve outputs and LVDT feedback. Basically, there are two (2) LVDT feedback signals for each...

no_bug, "Straight" ("Normal") Droop Speed Control is proportional control. Constant-Settable Droop Speed Control uses and integral control function in addition to the proportional function. If I remember correctly (and I don't have any Mark* software to look at as I write this) Isochronous...

engimad, In my knowledge and experience, IDOS cannot be used with anything other than an ISA bus ARCnet card. The driver for the ARCnet card was never modified by GE to be able to use a PCI bus ARCnet card.

no_bug, Here's a line copied from a Mark V CNST_Q/SRC file for TNKR3:<pre>TNKR3 107.0 % ; SETPOINT HIGH SPEED STOP</pre> The signal name description should be the same for Mark VI and Mark VIe (and for Mark IV). This value is the maximum "operating" value for FSRN...

no_bug, I don't believe you've properly copied the formula; at least one left French curly brace is missing, and I'm not sure about all of the signal names, either. Does the unit you are working on have "regular" Droop or Constant Settable Droop? And, what problem are you perceiving, or...

Makster, I, too, am swamped through the middle of next month--outage season has begun (with a vengeance!). I don't have ready access to a PC with ControlST/WorkstationST/ToolboxST, either, so I'm not able to comment on the application code. It would not surprise me that Hitachi modified...

Novice, I don't have access to any P&IDs as I write this. The topic of GE-design heavy-duty gas turbine fuel purge systems has been covered many times before on control.com (there is a 'Search' feature at the far right of the Menu bar at the top of every desktop control.com webpage). Gas...

Novice, Is the unit dual-fuel (gas/distillate)? Regards, CSA

ruels, What have you done to try to make the alarm sound work, and what were the results?

absado, Without being able to see the schematic drawings for the generator protection and DCS inputs there's not a lot we can say for sure. We also don't know what the island load was at the time of the event, or what the power factor of the island load was at the time of the event. It's...

CMan, What Diagnostic Alarms accompany these events? It's not typical for GE-provided turbine control systems to trip (emergency shutdown) the turbine and generator on high generator RTD temperatures, but some purchasers (owners) do request the unit be tripped on high-high generator RTD...

What have you done to check out the instrumentation and control system--including the tubing connected between the compressor discharge casing and the transmitter(s)? You can check Mark V/VI, but that doesn't tell us if you have a Mark V or a Mark VI, or even a Mark VIe (and many, MANY people...