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Thermal Overload
The threads that wouldn't die...
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
- PC reliability?
- Windows, real time
- PID loops
- PCs vs. PLCs
- Replacing people
- MS 'monopoly'?
- Software quality
- Where do we go from here?
- Why pay?
Fortune
The wind doth taste so bitter sweet,
Like Jaspar wine and sugar,
It must have blown through someone's feet,
Like those of Caspar Weinberger.
-- P. Opus
Like Jaspar wine and sugar,
It must have blown through someone's feet,
Like those of Caspar Weinberger.
-- P. Opus
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Can Barriers be used in Hazardous Area?
New Replies:
By Roy Matson on 2 November, 2009 - 12:38 pm -
I see now reason why not except that the barriers would need to be approved for installation IN the...
Cv rating of pressure regulators
New Replies:
By Roy Matson on 2 November, 2009 - 12:31 pm -
Most of the regulators I buy are rated in Volume units, gallons per Minute, CFM or the metric...
Hello
The Cv is the flow coefficient of the pressure regulator or the control valve and it is...
need to scale down the voltage in to 0 - 9 for running the motor in safe side
New Replies:
By curt wuollet on 2 November, 2009 - 12:08 pm -
How about a voltage divider? If the input resistance is fixed, a series resistor may be your best...
By William Sturm on 2 November, 2009 - 11:53 am -
If you feed the voltage through 3 diodes in series, you would get approx. 2 volts drop. If the...
We are having 10 third party PLC systems to be connected to DCS. We wanted to use ModBus TCP/IP protocol. For this, OPC server facility is required or the PLCs will act as ModBus TCP/IP Server. Please clarify
Turbo-generator response to changes in the power grid frequency.
New Replies:
By Mik on 1 November, 2009 - 2:09 pm -
CSA, you didn't comment previous post. I wonder if you have seen that control concept before. There...
Standards for Safety PLC in Steam Boilers
New Replies:
By Hase on 1 November, 2009 - 12:39 pm -
I'm really surprised that there aren't some widely accepted standard for burner management system...
By Bart Schaminee on 31 October, 2009 - 10:59 am -
Steve,
I agree with you. Go for best practice of segregated SIS per boiler and select a small...
i m facing difficulty while generating the transfer function of Ac servo motor
TTL encoder and very fast counter inputs
New Replies:
First you need to know what the maximum frequency is you are going to measure with that encoder!
...
i'm searching for information about input pin configuration of vexta AXH230KC motor
Need wiring suggestions for guard lamp circuit on a motor starter.
New Replies:
By David Dohm on 30 October, 2009 - 3:47 pm -
I would use a safety relay, connecting the switches to it, and having one of it's outputs drive the...
I'd like to pull data from the Telemecanique Zelio Logic Relay.
New Replies:
By Wassim Daoud on 30 October, 2009 - 3:06 pm -
Try this OPC Server... and let me know how it goes
...
Need to connect Micrologix 1100 PLC to Agilent 34980A.
New Replies:
By Wassim Daoud on 30 October, 2009 - 11:13 am -
This is a common challenge in the control systems world usually resolved by using OPC. To learn...
By M Griffin on 29 October, 2009 - 7:05 pm -
The Agilent rack is a data acquisition rack. What is it hooked up to though? A PC? If so, then why...
Need for an help to choose the best fieldbus in a Generating Power Plant
Any demo-software available?
Fail to install flexos/coros lsb in large hard disk.
How to configure when changed network card in coros?
How to configure when changed network card in coros?
New Replies:
By curt wuollet on 30 October, 2009 - 12:05 am -
Sometimes you can cheat the BIOS into using the drive parameters for a smaller drive. Heads and...
By M Griffin on 27 October, 2009 - 4:37 pm -
With respect to the hard drive, you probably need to partition it. Partitioning a drive divides it...
Comparison of piston and diaphragm control valve
New Replies:
Yasir,
What Roy mentioned is true. Diaphragm actuators are usually limited to a max. of 40-45...
In the TMR MKV panel with HMI in windows2000 operating system the diagnostic counters when opened is showing only two cores i.e. <C> and <R> but not the other two processors <S> and <T>.
Load sharing of 2x10MW Steam turbines
How can HC900 communicate with ML50?
New Replies:
By Art O on 28 October, 2009 - 1:09 pm -
Hi Keith,
HC900 does support Modbus/TCP so the suggestion from Patrick L to use a Modbus/TCP to...
ES100 Atlas Copco Sequencer E4 not working.
Three phase motor's current is imbalance
New Replies:
By Roy Matson on 27 October, 2009 - 11:45 am -
Adil,
You gave the current readings with a single phase voltage applied to each winding in turn ...
By Phil Corso on 26 October, 2009 - 10:49 am -
Adiul, re: your comment regarding power measurement in an unbalanced system..
Contact me...
By Phil Corso on 25 October, 2009 - 6:16 pm -
Adil... unless the second drive has comparable measurements, then I, like Roy confirm the motor is...
By Adil on 25 October, 2009 - 3:40 pm -
o Is the motor still in service?
Yea, it is still in service .
o Is...
Can anybody told me how to tune Baldor Linear motor .
New Replies:
OK, but I need more details of your application:
- Microflex operation mode (i.e. current or...
By Edwin on 27 October, 2009 - 12:40 am -
Linear encoder: -ATEK MLS1 series linear encoder with hall sensor.
Presently I am able to...
What type of linear encoder with Hall sensor do you have? Can Microflex drive perform brushless...
In case of differential protection, say for generator, we know that current entering a phase must be equal to current leaving that phase. Now for example, there is a short cct between phase R & y at the point where current is entering the phase, just after
New Replies:
By Phil Corso on 27 October, 2009 - 9:57 am -
Speedtronic, see:
http://control.com/thread/1026242938
Phil Corso...
Differences between Exde and Exd
New Replies:
Exd means your motor is flame-proof type,while Exde means your motor consists of two types of EX...
what kind of electrical CAD software is most used by you guys?
New Replies:
By Ro on 26 October, 2009 - 11:51 am -
Hey,
I have been using EPLAN Electric P8. Already at the time I was generating my drawings in...
EPLAN vs. AUTOCAD Electrical
New Replies:
By BruceLei on 26 October, 2009 - 11:45 am -
It is one third the price (if you already have the ACAD mechanical first then you have to add the...
I need ideas for my project on Automated Control of Manufacturing Systems
How to combine DDC controllers network with PLC network.
time synchronization in DCS system
New Replies:
By M.Bhaskar on 25 October, 2009 - 11:51 pm -
Hi All,
DCS system receive time synchronization in form of Pulse which can be defined for second...
The resistive part of grid impedance at the 240 volts residential level.
What is the advantage of using duplex type RTDs in HV Motor protection
New Replies:
By Phil Corso on 25 October, 2009 - 8:28 pm -
Kunal... typically, RTD's used to monitor motor temperature are embedded in the winding slot. Thus,...
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