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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 plot was designed in a light vein that somehow became varicose.
-- David Lardner
-- David Lardner
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How to setup a good PID controller for dc motors you do not have information about. All the motor parameters are unknown. Is it possible to achieve all the motor parameters somehow?
New Replies:
By Ken E on 6 November, 2009 - 8:09 am -
What type of feedback are you using to control the DC motors? If you use
a decent encoder to track...
for my project title i want to control the position of AC servo motor
need to scale down the voltage in to 0 - 9 for running the motor in safe side
New Replies:
By M Griffin on 2 November, 2009 - 2:07 pm -
The normal method of doing this is to use a signal conditioner module with a DC input and a DC...
i m facing difficulty while generating the transfer function of Ac servo motor
Trying to find a Positioner for a rotary actuator (Keystone 79u) that works off of Profibus DP Communication.
stupid questions most likely
New Replies:
Thanks for the input! ...
By M Griffin on 28 October, 2009 - 3:37 pm -
Since you are gearing up, if you used a worm gear you would be using the spur to drive the worm....
By Jake H. on 28 October, 2009 - 9:09 am -
Thanks Bill,
Say if I went with gears, being nylon or not, and the shaft cams (that would be the...
By William Sturm on 27 October, 2009 - 6:41 pm -
Gears would put less overhung or side load on the shaft. Any deflection will cause major issues at...
Can anybody told me how to tune Baldor Linear motor .
New Replies:
By William Sturm on 27 October, 2009 - 11:52 am -
First double check all electrical connections. Assuming you have done that, start by setting...
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...
I need ideas for my project on Automated Control of Manufacturing Systems
Asymmetrical ZC detection at rising and falling edges
How to change operation between motor, and generator?
New Replies:
Conceptually, if you are applying torque to the motor in the same direction as the velocity, you...
My son's razor E100 scooter stopped working and I believe it's the motor controller.
New Replies:
By Sam on 18 October, 2009 - 7:04 pm -
I wish I had seen this post before I bought the new control boxes. They are available on Razors web...
what's best braking for dc motor??
New Replies:
By M Griffin on 13 October, 2009 - 8:25 pm -
If you are using dynamic (or regenerative) braking, then the generated voltage at any speed will be...
but if we use large voltage or current, isolation in motor can broke. I want time respond for...
By M Griffin on 13 October, 2009 - 2:08 am -
The "best" value depends on what criteria you consider to be "best". A higher...
yesterday, i discuss with my university instructor. he suggest me for use regeneratif braking..
...
By Mike on 12 October, 2009 - 8:13 pm -
Big motor or small? how fast does it have to stop? Dynamic Braking is a common brake function used
...
Encountering problems in setting up a current sensor for current control in a BLDC Motor
New Replies:
By Curt Wuollet on 13 October, 2009 - 4:13 pm -
Hi
What I am saying is that if you measure the voltage to ground from either end of your current...
Thanx.......
By Leonid on 11 October, 2009 - 3:03 pm -
Another difference amplifier from Analog - AD629 - maybe strongly recommended instead AD620 used...
Thank you for your prompt reply....I was out of station for a couple of days..hence could see it...
By curt wuollet on 7 October, 2009 - 1:06 pm -
It's hard to say without seeing your circuit, but it sounds a lot like you are taking one or both...
Need a PLC that runs on 12 volts and supports IEC 1131-3 Structured Text.
New Replies:
Beckhoff has a large range of controllers that use their Twincat IEC 6-1131 software, allow you to...
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.)
New Replies:
Better you go for MV drives with Multi cell technology which are now a days comparatively very...
Dear Mahesh sir,
I am also an electrical engr. now working with PRAN_RFL GROUP, Bangla desh. I...
It's clear that close loop is better than open loop control but...
New Replies:
By William Sturm on 5 October, 2009 - 9:34 pm -
A tachometer only provides velocity information. An encoder typically provides position...
Sorry for my inadequate information. It is actually a school lab that I have done on testing the...
By William Sturm on 5 October, 2009 - 11:46 am -
You have not provided enough detail of your system. What are you trying to control? What do you...
By Ken Emmons Jr. on 5 October, 2009 - 10:46 am -
What are you trying to drive? An inverter with induction motor?
Permanent magnet 3 phase servo,...
I am doing a project on controlling the speed of a single phase shaded pole -permanent magnet- ac motor.
New Replies:
By M Griffin on 4 October, 2009 - 4:32 pm -
An ordinary shaded pole motor can simply "slip" a lot when driving a fan. That's how you...
Ok. maybe Frequency .. Can you present to me some project about this....
By curt wuollet on 3 October, 2009 - 5:45 pm -
You can actually achieve a degree of speed control with wound field shaded pole motors with...
By M Griffin on 3 October, 2009 - 5:13 am -
So far as I know, that is a synchronous motor and the speed depends on the frequency, not on the...
What type of equipment is needed to duplicate commercially available motion platform designs using off the shelf equipment?
New Replies:
It has been several years since you posted this inquiry. I have the same interests and have spend...
AB Max/Control Motion Control Software needed
Can anyone help with advice on the parts needed for a radio-controlled lawnmower I am about to build?
New Replies:
By mack2k on 29 September, 2009 - 8:15 pm -
I would like to see your mower if I may. I am building one now and would like to correspond with...
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