Posts from...Today, Saturday, May 18, 2013
from the Forum department...Why 250mA fuse for 4-20mA analog input?
Why 250mA fuse for 4-20mA analog input?
I suspect that a fuse installed in a 4-20mA loop is an attempt to protect an analog input on a 2...
No I am sure it is 250mA fuse for each 4-20mA input and not the 250ohm resistor....
I am sure it is 250mA for each 4-20mA input. ...
from the Operations Department department...Mark VI IONet N-Tron Network switch failures
Mark VI IONet N-Tron Network switches keep on failing, RCA needed
Sagir, Is it possible that the Rev. C switch failures have caused some problem(s) with the 28 VDC...
By Sagir on 17 May, 2013 - 12:59 pm -
We too are facing a lot of failures in N-tron switches (516/508 Fx and tx). After an RCA by N-tron,...
from the Engineering department...Low Output After Bearing #2 had smoke on GE MS9001E.
Low output after smoke coming out from the extraction pipe from bearing #2
Fyzal, If this is a problem with some kind of L.O. leak in the #2 Brg. area (which is what I...
At the moment, we are planning to check the extraction pipes for the sealing air, which taken...
Hi CSA, Smoke is seen from the venting pipe since from Full Speed no load, and getting worse...
Dear SB, The lube oil pressure is 1.85 bar, and temperature (LTTH-1) is 66.6dgC. At bearing #2,...
Fyzal, If I recall correctly some Frame 9E machines also had a strainer/separator underneath the...
Fyzal, How long was "smoke" seen coming from the vent pipe? Is there any idea how...
By SB on 16 May, 2013 - 11:37 am -
Dear Fayzl Do mention the Lube oil header pressure and temperature vibration siesmec as well as...
from the operation department...hydraulic filter
How to change over Hydraulic oil filter in frame6B GE gas turbine, while the Gas turbine is in service.
from the control department...GT FSR for warm up the turbine
FSR fuel reference - margin of FSR warm up
MWO, Certainly a diesel starting means which is not being controlled correctly could be the cause...
By MWO on 17 May, 2013 - 1:55 pm -
CSA, I appreciate the reply. There is a general feeling among the operators and mechanical...
MWO, There are a couple of different versions of FSRMIN and the "programming" used to...
By MWO on 15 May, 2013 - 10:32 pm -
We installed a Frame 6B GT in 1988 and in 2004 we upgraded our Mark IV to a Mark VI. After that...
from the Electrical department...Unbalanced external resistance on wound rotor induction motor
Several steps of external resistance used for speed control on motor appear to have uneven amounts of resistance. Is this possible? What will the effect on the motor be?
Ben... this sort of problem can be solved using Symmetrical Components Analysis! Say the...
By Ben on 17 May, 2013 - 6:16 pm -
Phil, Really appreciate your response. Unfortunately all i've got is a really poor wiring /...
Ben... please provide operating data: a) Line-currents. b) Supply phase-phase voltages. c)...
from the Instrumentation department...gefanuc 9030 modules
IC693MDL module not giving output after programming.
By Russ B on 17 May, 2013 - 4:17 pm -
Output modules are typically powered with an 'outside' source independent of the PLC. If the output...
from the Research department...Help with Modbus Hold and Store
A solution to read, hold and store the modbus datas.
from the Instrumentation department...AS160OS (Fix32) Configuration Problem
ABB "OS Loader" Configuration Problem
from the Instrumentation department...CEMS In-situ analyser
Problems with in-situ CEMS analysers
What is the make of CEMS. I had faced the same problem and we have shifted the analyser at 16 mtr....
from the Shree Mega Power department...Medium Voltage Drive
To run the MVDs on 40 Deg C ambient temprture.
from the Private department...What is the critical speed of Centaur 40 family?
What is the critical speed of Centaur 40?
from the DCS Interface department...Ovation Serial Interface to Control Logix
Serial interface between Allen Bradley's Control Logix and Emerson Ovation DCS
By Pons Tanawan on 17 May, 2013 - 1:46 am -
Ann, how about the Nexus1250 its provided with RS485 communication port that could support A...
from the Gas Turbine Control department...FSRMIN / Acceleration confusion
Very confused about the operation of minimum FSR/Acceleration Control and their constants. (probably too many questions on one posting)
from the Maint/Ops department...Modbus Comms between 2 devices
New to Modbus, trying setup communication between two devices.
from the Forum department...Communications between Quantum PLCs
Quantum PLC Communications
from the Forum department...Woodward 505 steam controller
Woodward 505 steam controller Alarm issue
from the Will not update department...FactoryLink Run-time OPC Server
FactoryLink 7.2 Runtime OPC Server will not recognize new/modified tags
from the Forum department...Connecting level switch
When is the point when I connect the liquid level control?
By Walt Boyes on 16 May, 2013 - 12:24 pm -
I don't know. You don't say whether your VFD has such control inputs and outputs. If it does not,...
If the pump is centrifugal pump, than stopping it would not stop the flow. You have to close the...
By Dick Caro on 16 May, 2013 - 10:45 am -
You haven't told us much about your objectives or the equipment you are using. This makes it...
from the Forum department...Implementing PID Controller with C++
Question about how a PID Controller might be implemented in C++. How to go from continuous to discrete signal in C++?
> Here is our implementation for closed loop controllers in C++: Yeah,I concur that are truly...
from the Synchronization department...Normal Slip Speed
What is normal slip frequency for synchronization.
By MWO on 15 May, 2013 - 9:09 pm -
>1) When synchronizing with high slip, how does this affect breaker contacts? In AUTO, the...
By paul on 15 May, 2013 - 11:40 am -
Sirs, I found this topic very interesting and informative, and have a few questions regarding...
from the from the GEA department department...Control strategy for deltav 7.4
Error message when creating a control strategy on a delta v 7.4
By thomajef on 15 May, 2013 - 2:49 pm -
In DeltaV Explorer/Setup/Licenses you should see your Version 7 license from their just drag and...
from the How is independent control possible department...Torque and speed control in BLDC motors
I want to know the details of a speed control for a BLDC motors. I want to know the relation between the torque variation during speed control.
By George C on 15 May, 2013 - 1:12 pm -
Hello all, In your situation is very useful to search the information provided by PIC's...
from the I&C department...GE Fanuc PLC Alarm
Action handler Fault from GE Fanuc PLC
By Russ B on 15 May, 2013 - 1:07 pm -
> this all the informations i have about this alarm, and i don't find any thing > in manuals...
from the Automation department...AC Voltage Drop Calculation in Cable
Want to calculate the total voltage drop in a 600 meter long cable carrying 150A
By Gerald Beaudoin on 15 May, 2013 - 12:59 pm -
I agree entirely with the suggestion to use transformers at both ends of the run and use a higher...
from the Forum department...Mark 5 diagnostic alarms
What causes diagnostic "LVDT position diffhigh REG#5"?
I was not aware of this file: HELP_QD.DAT. Thanks for this simple yet huge tip (I've needed for...
from the controls department...Bently Nevada Vibration Monitor Question
wideband vibration alarm...
By Jeff Warner on 15 May, 2013 - 11:25 am -
I assume you have a Bently 86517 accelerometer interface module. If so, Bently manual # 83301-01...
from the Help department...Wonderware DASABCIP
Unable to connect Wonderware Intouch View to A-B CompactLogix 1769-L32E
from the Major company looks for... department...OEE module for aspentech Infoplus 21 (IP21)
Looking for OEE module to be embedded in IP21 databases, for a major company in a worldwide deployment.
from the Automation and control department...AI module burns while thundering
Only one Analog input module (Model no-6ES7 331-7KF02-0AB0, Siemens) is frequently burning during thundering.
By EPD on 15 May, 2013 - 3:51 am -
Thank you very much for your answer. Now replying answer of the question. 1. Yes, there are 04...
"Microwave oven? Whaddya mean, it's a microwave oven? I've been
watching Channel 4 on the thing for two weeks."