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    PDIO replacement, Markvie controller failed to boot

    We have two mark vie controllers for Gas turbines. One of the PDIO module failed while GT online and alarmed, Control system fault inhibit. PDIO was showing without any indications. We removed the load on the machine and while at FSNL, replaced the PDIO with a spare one. The module didn't...
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    MarkVie Controller Failure Upon Power ON

    MarkVie is switched off core by core for Gas turbine maintenance. When we switch on power after the maintenance, always one or two core doesn't boot. It flashes 7 times indicating ROM failure. We had to remove the flash card and reflash it. Most times it works. Sometimes even after flashing...
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    MarkVI UDH/PDH Switch Confguration

    I am using Allied Transys AT8624T/2M switch in Markvie UDH/PDH network. One of the switches failed. We have a spare switch. I would like to know how to configure this switch. I connected this switch to a PC and using PUTTY software logged in. But further, I couldn't proceed. The commands gave in...
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    Markvie PDIO Module Failure

    Hi Badr, The failed PDIO module version E and the new module version H.
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    Markvie PDIO Module Failure

    Thank you very much Max. I didn't change the TB, only changed the configuration in the ToolBox, as suggested by a friend. But it didn't accept the software. So, I reverted back to H6. Software loading became ok. The confusion happened because the newly replaced module in <R> also failed. Now...
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    Gas Turbine Load Run Up Restrictions

    In our plant, we have two frame 5GT's (12 MW each) and one H25 (25 MW) Hitachi Gas turbines. The Hitachi Gas turbine has FSRLLBIAS factor kept as 3% to restrict the GT to take sudden load. It is limited to take 4.2 MW maximum only. Why is this factor necessary? According to them it is kept to...
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    Breaker Closure Speed in Synchronising

    We are replacing Generator breakers (6.9 KV) VCB with New ones which are designed to close much faster than the existing ones. Does this need any setting change in ToolBox in Mark Vie? What is the effect on the Gas turbine? We have two Frame 5 GT's with Mark Vie. Circuit breaker supplier...
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    OPC DA server

    Thanks for the response CSA. I did the trouble shooting and it is normal now. First I stopped the Workstation features and started again. After this Cimplicity become OK. Then I downloaded the workstation software. During downloading it was showing Application code not equal. After...
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    Moog servo valve

    CSA, We had confirmed the polarity before attempting this. Thanks for your comments.
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    Moog servo valve

    We found that the new moog valve installed in Frame5 GT with MarkVie control was showing more than 5% difference in feed back and command in the lower side. Tried to adjust null bias current. but it has to be increased to 5.5 % to get the feed back and command nearly equal. So we tried to...
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    Markvie - servo output current fault

    Dear CSA, 309Eguy and MIKEVI Thank you all for the comments on valve lift calibration. It is really useful and AS CSA has pointed out, the myth of valve calibration should be taken off from everyone's mind. All of you were focused on calibration, I did not get any response to my problem...
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    Markvie - servo output current fault

    We have two Markvie retrofit (TMR). one of the unit, we changed out gcv, srv and lfb servo valves during maintenance and carried out lift calibration. after this we started getting, L3GRVFLT Gas ratio valve position servo trouble and L3GRVSC_ALM Stop Ratio Valve servo current fault alarms...
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    MarkVie flame indication mismatch

    CSA, The information is very useful for trouble shooting. Thanks in advance. * Coming to the exhaust tem spread. It is very normal in both units. only 20 oF. * Cables from the flame detectors are individual shielded cables run separately (but not on conduit). * One more thing the...
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    MarkVie flame indication mismatch

    CSA, Flame detector problem is there in both units. One unit #2 flame good(340 Hz) and #3 poor(180 Hz) and in the other unit the flame intensity #3 is good and #2 is poor. Both run on Natural gas fuel. These machines were with Hitachi control system and retrofitted with MArkVie controls...
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    MarkVie flame indication mismatch

    We have two Frame5 LA machines with MarkVie control. recently commissioned. we are using honeywell flame scanners. The #2 and #3 flame indication in HMI is different (#3 shows half of #2 in one unit and vice versa in other unit) 340 Hz and 180 Hz. Also the indication keeps moving and causes...
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    MarkVie

    Thanks CSA for your quick response. In the PCAA card LVDT page there is "Position margin" for gcv and srv lvdt. These were set as 1 before. This means if the valve position is above +/- 1% condition, this makes diagnostic alarm. I have screen copy with me. But I don't know how to attach...
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    MarkVie

    Hi Everybody, I would like to make temporary changes in MarkVie when I receive alarms. I do not want to build and download every time. For eg. GCV/SRV valve position margin change. You can change it. But unless you build and download, the changes will not take place. Is there a way to make...
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    Alarm Printer

    PV, WOW. That worked. Great. Thank you very much.
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    Alarm Printer

    CSA, I tried renaming and deleting the OKI printer. Also tried pitch 12 instead of 17. Still printer font is big and is not printing full Alarm descriptions. Changing monitor resolutions doesn't have any effect on the Cimplicity display settings. Thanks
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    Alarm Printer

    CSA, The printing problem was there during commissioning. Hitachi people tried but did not succeed. *We have two HMI for MarkVie *MarkVie version: V03.06.04C Work station St : same version Cimplicity: version 6.10 service pack 6 *Printer: OKI ML590 *Printers and Faxes folder: OKI ML...
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