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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
fortune: cpu time/usefulness ratio too high -- core dumped.
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I Have A Square D /Starkstrom EMBC36/480/120...
New Replies:
Went to Square D Could not find any info. there...
Thanks I will Give It a try...
You can go to:
www.squared.com
You will find what you are looking for including wiring...
We have a DVC6020 positioner be used on a "combustion air" damper with a single piston actuator. A Tri-Loop (HART converter) provides position feedback from the DVC6020 positioner to our Yokogawa Centum CS DCS. There's an intermittent problem with the position feedback...
New Replies:
By Lewis Louie on 30 January, 2009 - 5:00 pm -
You should try out a Masoneilan SVI-2AP Digital Positioner as Chevron Refinery at Burnaby, BC,...
I'm told to 'balance the load' on contactor poles - what does this mean?
New Replies:
By Roy Matson on 30 January, 2009 - 6:12 am -
No, as I Jones and I pointed out most 3 phase overload units have an out of balance that will trip...
Yes this is a single phase application.
Now I'm finding out what's at the bottom of this. I...
Many thanks for this. I think the loads will be ok.
...
By I Jones on 23 January, 2009 - 8:32 am -
No problem with the contactor, each pole will carry it's rated current independantly of the others....
By Roy Matson on 23 January, 2009 - 1:40 am -
I assume your motor is single phase, otherwise you should be switching all 3 phases.
I think...
braking of a 3 phase slipring induction motor in a hoist without mechanical brake.
New Replies:
By tcampbell on 29 January, 2009 - 9:10 pm -
Had a similar problem years ago with a 5hp 3phase manual industrial table saw. Wanted to stop the...
we have many LT6P0M005FM at our plant and now there is no replacement from square D, telemecanique.
New Replies:
By Mike on 29 January, 2009 - 1:50 pm -
>TesysT from Schneider is the family that replaced LT6 they don't correspond as a 1 to 1...
I need to read / write data of PLC register from my VB program
Flash Upgrade Assistance
New Replies:
You need to get it from Rockwell
http://www.rockwellautomation.com/support/firmware.html
But...
By Trevor Ousey on 30 December, 2008 - 4:10 pm -
Chris,
Go to the Rockwell website, and the firmware is available there for the different versions...
By Bob Peterson on 30 December, 2008 - 3:54 pm -
all the versions are available at the ab website....
Block diagram and how to use microcontroller
New Replies:
By Naveen on 22 January, 2009 - 10:49 am -
Hi Ravichandar,
Our Btech IV year project is also MICRO CONTROLLER BASED DC MOTOR SPEED CONTROL...
Using SSD DC driver 591P for field coil
New Replies:
While this is a simple thing to do with this drive, it will take too much to describe it here. In...
Unexpected result of DGA
New Replies:
By Phil Corso on 17 January, 2009 - 9:26 pm -
Paru, it appears that the before/after measurements may have been taken at different temperatures!...
I was told the following information,lead and lag parameters and a controller in PID Format.
About A/D converter question.
I need help finding an adequate sensor
New Replies:
By Leonid on 12 January, 2009 - 3:02 am -
For such environment and resolution maybe suggested cheaper (vs. optical scale) magnetic linear...
By Steve Rushing on 11 January, 2009 - 11:15 am -
Hello, The heidenhain LIP 500 Exposed Linear Encoder offers between 70 and 1440mm of range, at an...
By James Ingraham on 8 January, 2009 - 11:02 pm -
>A linear measurement over 1000mm wide
>Accuracy of 0.001mm
That kind of length with that...
By Carl Ellis on 8 January, 2009 - 7:36 pm -
Two common spellings (you have to know both to search). I believe the absence of the "re"...
By Peter Nachtwey on 8 January, 2009 - 6:03 pm -
The easy thing to use is the magnetostrictive sensor as mentioned above. You can get them with 1...
By M Griffin on 8 January, 2009 - 4:11 pm -
For that accuracy over that distance, I would suggest looking at a Heidenhain linear encoder. They...
Everyone needs help sometime.
The most accurate instrument I know is a Magnetorestrictive sensor...
why the output current is higher than the input current in the servo?
New Replies:
By James Ingraham on 8 January, 2009 - 11:34 pm -
>I don't understand why "16.8 Amps at
>400 Volts equals 25 Amps at
>approximately...
By Anonymous on 8 January, 2009 - 11:51 am -
When a PWM output drive is used, current to the motor will differ from current to the drive largely...
Thank you for your reply, wish you have a good 2009. :)
I don't understand why "16.8 Amps...
Thank you, sorry for the late reply, and I wish for you everything goes well in 2009.
I agree...
from the Electrical engineer department...
Medium Voltage Variable Frequency Drive to Control the Speed of MotorI am electrical engineer by profession and currently I am doing research on medium voltage Variable Frequency drive (also called as VFD, VSD, AC drive, VVVF, etc.)
A tachometer which is explosive proof.
New Replies:
By Abhijit Goswami, Haldia on 7 January, 2009 - 6:12 am -
MTL662 is a loop powered indicator used in hazardous area application with 4-20 mA input only. You...
Can anyone help identify this request?
The motor is shot and I would like to find a replacement...
New Replies:
By Roy Matson on 2 January, 2009 - 4:29 pm -
Mike,
If you can't find what you want I suggest you try www.Linak.com or www.Linak.ca, they make a...
Another source of 12V actuators is a Linak
www.linak-us.com
www.linak.ca
They make an...
By myers on 31 December, 2008 - 2:27 pm -
Danahner Motion now owns thomson saginaw. Try their website http://www.danahermotion.com/...
Looking for ABB Software Control Builder for programming PLC in IEC 61131-3...
about inertia ratio of servo
New Replies:
People may be interested in this thread from way back on the same topic:
...
By Ken Emmons Jr. on 29 December, 2008 - 8:41 am -
I don't know of any other way to do this than what you have done. Mitsubishi Electric (and others)...
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