Welcome to Control.com, the global online community of automation professionals.
Control.com - Nerds in Control
Member Login
Search
Jump to a Date
Sponsored Communities
Cool stuff
Twitter Feed
Neat Stuff
Visit our shop for nerds in control lifestyle products.
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
Critic, n.:
A person who boasts himself hard to please because nobody tries
to please him.
-- Ambrose Bierce, "The Devil's Dictionary"
A person who boasts himself hard to please because nobody tries
to please him.
-- Ambrose Bierce, "The Devil's Dictionary"
RSS Feed
Use this link to get an RSS feed of the Control.com article flow, for private, non-commercial use only:www.control.com/rss/
To get a personalized feed, become a member at no cost.
need guidelines regarding simulation (simulink model) of bldc motor
New Replies:
By anonymous on 22 June, 2009 - 6:04 pm -
I have a number of documents concerming bldc transfer functions and real world applcations that may...
My son's razor E100 scooter stopped working and I believe it's the motor controller.
New Replies:
By Mike H on 19 June, 2009 - 10:34 pm -
These are simple circuits. I made a schematic. The SCR, Q1, seems to be bad. If you jumper the...
Flow Meter with totalizer and pulse output per litter / gallon
New Replies:
By JMW on 18 June, 2009 - 7:23 am -
Turbine meters are not particularly good with viscous fluids. Not only do we get a significant...
By Rohit Chandak on 11 June, 2009 - 7:24 am -
I fully support Sam's input & it is very important to confirm the accuracy statement since PD...
By Sam W on 10 June, 2009 - 5:28 pm -
A very important consideration you left out is your accuracy requirements.
"Low cost"...
By Rohit Chandak on 10 June, 2009 - 8:21 am -
I would try to balance the product performance without much maintainance with low price & I...
By JMW on 7 June, 2009 - 7:52 am -
The OP said he wanted "cost effective" and that he would "prefer...
By Roy Matson on 5 June, 2009 - 4:11 pm -
The poster mentioned "no moving parts", I have used both the types you mention. Provided...
Vortex may be an expensive solution.
Most usually the answer is to use a positive displacement...
Programming Baldor H2 Inverter Drive with Mint Workbench Software
New Replies:
By JD on 17 June, 2009 - 10:10 am -
Hi Sara,
The H2 is an analog drive. It does not support Mint keywords. If you just want to run...
Adjusting BN gap voltage
New Replies:
By bubba_gump on 16 June, 2009 - 7:00 am -
Leave gap alone. If you have a 3500 rack, get the config software from your Bently Service...
By vahid on 16 June, 2009 - 12:51 am -
Hamad,
What do you mean by BN? Does it mean Bently Nevada vibration monitoring system?
If it...
GE 7FA IGV servo dithering too much, the right amount or is something else going on?
New Replies:
By Bagan on 16 June, 2009 - 5:39 am -
Dear,
We have Frme-VI Machine controlled with Mark-IV.
We also faced the same problem...
I've pulled brand new servos out of the box, installed them with the same color coding, and had one...
Thanks for the responses guys. I posted this question the evening I changed out the servo and...
I don't have any experience with the Mark Ve, and very little with the Mark VIe. Can you attribute...
Greg,
we operate a 7ea in AGC mode 24/7. We also have seen short service life from the IGV...
servo press brands
New Replies:
By Denson on 16 June, 2009 - 3:53 am -
I would request you to go for Baldor serv motor there ou can get good support....
By M Griffin on 15 June, 2009 - 8:56 pm -
P.S. - I forgot to add one important point.
>5.1 Precise positioning control +- 0.01mm.
...
By M Griffin on 15 June, 2009 - 8:46 pm -
I don't want to name any names here, but there is a brand of servo press that you have heard of...
By Ken Emmons Jr. on 15 June, 2009 - 12:30 pm -
Hello,
I thought these guys are priced decently as compared to servo press vendors. I'm not sure...
basic differences between contactor and relay?
New Replies:
>Ans. contactor is a heavy duty switch whereas the relay is light duty switch <
...
By Spiro35 on 12 June, 2009 - 8:01 am -
>contactor has a hold on contact whereas relay has no such provision <
Hold on contact is...
How Field Oriented Control works (VISSIM example context)
New Replies:
More basic info regarding FOC you may find from Motion control university inside PMD Inc website -...
Basics of mint language
New Replies:
By Bernard on 9 June, 2009 - 6:20 am -
There are plenty of examples in the baldor web site. If you download and install the mint workbench...
designing a 360 turntable
New Replies:
Hello,
Indexing tables are common in automation...here are a few names to look for:
CAMCO,...
By David Brown on 8 June, 2009 - 3:48 pm -
Hi Doug,
No luck yet.... I'll keep looking.
THanks for all the sugestions so far....
...
which contact (NO or NC) of limit switches are used for safety operation, if their is a failure in case of wire cut.
New Replies:
I would back up what M Griffin said previously about about
1) There being no single answer...
By Gray on 5 June, 2009 - 5:10 am -
Does your Digital Input card have "NAMUR" and line monitoring facility?
Then it...
By James on 4 June, 2009 - 11:41 am -
Correct me if i'm wrong, but to answer your question, I would say normally open....
Hello,
I prefer to use the both Contact "NO and NC". When the state of both contacts...
By M Griffin on 4 June, 2009 - 12:05 am -
If it's a safety related application, then you should use safety rated switches together with a...
By Roy Matson on 3 June, 2009 - 3:17 pm -
It's normal to use the contact that opens at the end of travel i.e. the circuit is maintained by...
Problem connecting Siemens MM430 and M340.
Tell me about the sink and source concept in drives (VFD,stepper motor ...etc)
Which way are motorised valve position and torque limit switches wired
New Replies:
By Roy Matson on 4 June, 2009 - 8:11 pm -
If you're driving it through a reversing starter in the MCC, the switches should be wired directly...
By Davis Gentry on 4 June, 2009 - 4:00 pm -
That depends on your controller and the system safety requirements - I generally do not wire them...
Has anyone had experience with these drives? We have 3 of them with 3 Unimotors and each one gives the wrong encoder phase angle after an autotune.
New Replies:
By Brett on 3 June, 2009 - 12:22 pm -
Hi
I have come across the exact same problem, i fitted a control techniques unidrive and...
New to Ladder Logic programming
New Replies:
By Guy Brasseur on 2 June, 2009 - 4:53 am -
There is a free book: Automated Manufacturing System - A PLC Book. By Hugh Jack.
Go To:
...
Request of information about Vision servo motor and servo amplifier.
Nitrogen and oxygen contents in trasformer oil...
New Replies:
Ususally the changes in nitrogen and Oxygen contents occur due to the contaminated oil samples....
Meausure a small force over a great force.
Your use of this site is subject to the terms and conditions set forth under Legal Notices and the Privacy Policy. Please read those terms and conditions carefully. Subject to the rights expressly reserved to others under Legal Notices, the content of this site and the compilation thereof is © 1999-2009 Nerds in Control, LLC. All rights reserved.
Our Advertisers
Help keep our servers running...
Patronize our advertisers!
Patronize our advertisers!