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Engineering
Topic: Software, including programming, OS issues, etc.
from the Forum department...
Foxboro I/A series tutorial
Posted by putrasuha on 30 September, 2014 - 10:25 pm
Foxboro tutorial
Topic: Sensor technologies.
from the Instrumentation department...
Load cell output mV linearity
Originally posted by Pradeep on 28 September, 2014 - 5:16 am
Whether load cell output in mV will linearly increment according to weight added to it?
New Replies:
In case of zero load, the load cell is showing some mV output with supply voltage - whether this...
Ideally, yes, but . . . . A load cell is ratiometric, that is, its output is proportional to the...
Topic: Power generation equipment control.
from the mechanical department...
Flow Divider Problem in GE Frame 9e Turbine
Posted by karim elrawy on 30 September, 2014 - 1:05 pm
Looking for advice on maintaining flow divider in our GE frame 9e turbine
Originally posted by Simon on 25 September, 2014 - 4:21 am
Why do people who believe that the OEM is the best alternative for off-warranty service & retrofit contracts why?
New Replies:
Simon, Great philosophical question, and I'm going to try to answer each of your points. >...
Originally posted by Sakthi Venkatesh on 27 September, 2014 - 5:00 am
After calibrating, why we are reversing the range for Level Transmitter while measuring Level?
New Replies:
In the old days when we used electronic and pneumatic DP cells we had to swop the HP and LP legs...
or you may do one more thing, consider the range from -2500 to 0. that is what we usually do in our...
the DP cell is put in reverse to calibration (L side of meter is on bottom tap and H side is on top...
Topic: Motion control, servos, steppers, etc.
from the Electrical & Systems department...
Over-speeding of Slave Motor in Rock Conveying System
Posted by Ravindra K Maheshwari on 28 September, 2014 - 6:16 am
Rock coveyor is being driven by Master and slave, two motors in load sharing mode. Slave motor is over-speeding when master gets higher loads.
Topic: Continuous process industries, DCS questions.
from the General Engineering department...
DCS vs PLC
Originally posted by Krishna K. Naidu on 29 June, 2006 - 12:11 am
Advantages of DCS over PLC for Gas turbine control
New Replies:
I am in agreement and as a proponent of Allen Bradley systems, the difference is in the planning....
Topic: Continuous process industries, DCS questions.
from the Instrumentation department...
Instrument Control Loop
Originally posted by Waqar Ahmed on 26 June, 2014 - 3:18 am
Maintenance procedure of process control loop.
New Replies:
If the process was previously running normal without hunting or instability, then something has...
Originally posted by Arosha on 21 September, 2014 - 9:55 am
What is the standard to connect multiple remote ESTOPs serially to Estop Monitor Relay
New Replies:
I like Bob's answer the best. I have worked on conveyors over half mile in length with all pull...
One thing to remember is if you are using 24 VDC E-Stop circuits, the length of cable becomes...
I doubt there is any international standards for such things. The main issue may well be that...
Topic: Engineering and workplace issues.
from the Automation List department...
Why 4-20 ma is used in Analog Signals?
Originally posted by sreeraj on 3 June, 2007 - 12:25 pm
Why 4-20 ma is used in Analog Signals?
New Replies:
The point will be argued until 4 - 20 mA is dead and buried. Did anyone mention it was just a...
I agree, lower voltages are safer but you can still get a spark from a 24vdc loop. The loop is...
Topic: Continuous process industries, DCS questions.
from the Instrumentation department...
Thermocouple Temperature Drops Suddenly
Originally posted by Litto on 22 September, 2014 - 2:06 am
Unexplained temperature drop while process is running
New Replies:
if grounded t/c's are being used, ground loops between the thermowell locations and its ground path...
If your getting any kind of moisture or water that can cause wrong readings also....
I agree with the suggestion of a short between the + and - wires somewhere. It could even be a...
If you get a high mV reading across the thermocouple wires, then - moving the wires to make the...
but if its the problem with cable or element, would i get milli volt corresponding to 950 or 900 on...
A drop to 100 is indicative of a short creating a false junction. A drop to zero is indicative...
If you are dealing with 950C as opposed to 950F, it could be a problem with the thermowell or the...
Somewhere between the hot junction and the analog input there's a short circuit in the extension...
Topic: Engineering and workplace issues.
from the Forum department...
DCS analog input problem
Originally posted by mahmoud fawzy on 4 September, 2014 - 7:10 pm
DCS Analog input signals didn't work with ADAM card
New Replies:
I just want to comment that this is a great thread to follow. I enjoyed reading the dialog very...
Mr. Fawzy, That's a very interesting observation. A common for all channels is what allows...
Hi David, I got one information form yokogawa training material that last number in AI/AO cards...
Topic: Power generation equipment control.
from the Forum department...
Generator Load Sharing Issue
Originally posted by RigMan on 2 September, 2014 - 1:41 pm
High amps on one generator
New Replies:
> I have 3 Waukesha LNG generators that run in parallel, the number running depending on load...
Topic: Engineering and workplace issues.
from the Automation Safety department...
AB or Siemens Equivalent Safety Product as Sick Flexi-Loop
Posted by Weida on 23 September, 2014 - 11:49 am
Is there any Allen Bradley or Siemens safety product that has similar modular capbilities as Sick's Flexi-Loop system?
Topic: PLCs and related questions.
from the Forum department...
Synchronizing Two ABB DCS Controllers
Posted by haroon0023 on 23 September, 2014 - 3:47 am
One type of status reading of ABB DCS says they are Synchronized, but other says they are 35% in Synchronized.
Topic: Power generation equipment control.
from the Automation List department...
What makes a generator increase load
Originally posted by kumarash on 10 August, 2008 - 3:49 pm
What makes a generator coupled to a gas turbine increase load when load raise command is issued to Mark V
New Replies:
You are right. I think an easier way to look at it would be through water turbines. here is how: ...
Topic: Engineering and workplace issues.
from the No Power Source At the Tank department...
Wanted: Simple and Inexpensive Automated Pump Control System Solution
Originally posted by M Jensen on 4 January, 2012 - 9:10 pm
Looking for a simple and inexpensive pump control system to automatically fill water tank. No power source at the tank. Pump is 700 meters from tank.
New Replies:
I am the original poster and am grateful for all the suggestions, expert advice, and links to...
We are working on such a kit. Our preliminary designs have proved to work at 1.5 miles away with...
Topic: Software, including programming, OS issues, etc.
from the Forum department...
Sliding Mode Control - MATLAB
Posted by Andrew on 21 September, 2014 - 7:39 am
Need help simulating sliding mode controller using MATLAB/SIMULINK
Posted by Beavis Cleavis on 19 September, 2014 - 1:07 pm
Bus contains isolated and non-isolated slaves. Considerations when connecting everything together?
Topic: Power generation equipment control.
from the Mechanical Engineering department...
Frame 9e Bearing Drawings
Posted by Mk6TA on 18 September, 2014 - 8:31 am
Bearing #1 drawings for a GE Frame 9e are missing.
Originally posted by Rushi Shroff on 24 August, 2014 - 2:57 pm
Master of technology in Industrial Automation & Robotics
New Replies:
That may be due to the preferences of your University. However I do not find it as a mistake....
Originally posted by Justin on 3 May, 2012 - 2:38 am
How to use a sigmatel USB IrDa dongle to communicate a Drager Xam 2000 with its CC Vision software for calibration
New Replies:
Search the forums there should be similar problem but solved. Did you update all the necessary...
Hi. I have the same problem with a sigmatel usb-irda dongle and windows XP. Do you get to solve...
Topic: Engineering and workplace issues.
from the Calibration department...
Rosemount 3051 Calibration
Originally posted by josh0206 on 22 June, 2014 - 3:39 pm
Rosemount 3051 Calibration
New Replies:
Ok let's get you on the right track. I will give you a detailed explanation on how to setup any dry...
Yes. 12-117 in wc....
So if I go through the zero suppression that would be like me rearranging it from 0-105" H20...
Topic: Power generation equipment control.
from the Maintenance department...
Fluid Variable Speed Drive Hunting
Originally posted by Mohammad Kashif on 13 September, 2014 - 5:03 am
Hunting problem in scoop of Voith Geared Variable Speed Coupling R 18 K 500 M
New Replies:
> if it is pneumatically actuated, you might check for water build up in the instrument air...
if it is pneumatically actuated, you might check for water build up in the instrument air line....
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