Recent content by joe45678

The difference between the calculated positions of the LVDTs is greater than 5%. This alarm applies only to regulators using more than one LVDT. I would pull up the diagnostic counter page (see GEH-5980 4-3.1.for running diagnostic counter on <I>) compare the associated LVDT values for...

One of the core controllers is in manual and the other is in automatic. I don't know how to get them both to match. We get the 741 alarm each time we startup. Once the unit is online we go out and clear it. There is a service notice to correct, but no TIL because there is no harm to equipment...

It sounds like the wire is coming lose from the lug that connects to the thermocouple. When you move the wires around it makes connection and then works lose during operation. Try replacing the end connector or the whole cable/connector assembly. Our exhaust thermocouples have typically...

Review the application manual GEH-6195. If you don't have one, it can be found doing a quick internet search. Look in sections 6 or 7. One of those two sections should tell what you are looking for. It has to do with the hardware jumpers on one of the boards. I think it is the TCQC board but...

Try calling your GE rep. Hopefully you will have better success than we did. Discussions with our GE rep provided no other information than the GE part #. Good luck finding a datasheet. We have requested one from GE and Kulite both. Neither have been willing to provide one. Even once the...

On our units we were instructed to replace the Ametek CPD transmitters PN: PG3000-500-82-12XX-03-12 with new Kulite transducers. The PTX series has already been discontinued. Kulite PN: IPTE-476-1100-300G GE PN:124T9950P0001 REV.001 Make sure that you order the wiring harness. GE did not...

Yes, that is correct. We set our radial probes up at -10VDC. If you get them within .2VDC should be good.

We set ours to where the "0" is in the middle of the shaft travel. To set thrust where the middle of the thrust is "0". 1. Thrust shaft toward probe 2. Set probe to -10VDC (Bently 0) 3. Thrust shaft away from probe 4. Take total traveled voltage and divide by 2. (ex. -5volts...

The only way I know of is to interface the transducer back to a Bently rack (3300 or 3500). Do you have a Bently rack? sounds like a no. If not, you will need some way to interface the transducer to the PLC. I don't think you can use a standard 24 volt power supply because you still need a...

I replaced the U9 EEPROM from the old to the new board and it worked. The card came up to A7. Following the instructions in the GEI-100029 manual, it does not say to replace the U9 chip in the PROCEDURE FOR REPLACING BOARDS section. It does in the REPLACING/INSERTING SOFTWARE section. I should...

Is there any difference in replacing a SDCC board on the <C> core v? We were getting D2 and D10 diagnostic alarms on <C> core with the turbine running. We decided to replace the board during an outage. We have three SDCC boards that we tried but each board was not recognized. Each of the...

Are the check valves installed in the correct orientation? We got our bearings back and one of the check valves was installed forward and the other was backwards. We found this after reassembly, during the final checks. Are you getting return oil in the bearing drain? There should be an...

Are you using a meter or the diagnostic counter page? Try using the voltages on the diagnostic counter page to calibrate your valve.

With all of the different combinations of upgrading DCS/turbine controls/PLCs we opted to use a firm, RoviSys, to help us with the upgrading decision making process. We provided them with the information they required. After that, they did all of the leg work. They brought in vendors to demo...

Our failure was the DCFB board. It was replaced and is now working.