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Thursday, January 29, 2015
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Motion Control - Topic Page
Control Moment Gyroscope Transfer Function
Posted by cyberlord64 on 27 January, 2015 - 10:20 am
Question about the methodology of determining the transfer function of a control moment gyroscope.
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Lossy NC Contact Blocks on Pushbuttons
Posted by runescape on 22 January, 2015 - 4:54 pm
Should I replace Estop buttons that are not reading 0 ohms Normally Closed?
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By runescape on 23 January, 2015 - 1:30 pm
Oh. I get what you're saying now. Nvm my comment re 10%. Smart idea! > Have an assistant...
By rootboy on 23 January, 2015 - 3:11 am
Have an assistant jumper across the contacts while you are measuring voltage at the coil. If you...
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contactor or relay?
Posted by Anonymous on 5 February, 2005 - 4:46 pm
basic differences between contactor and relay?
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By pvbrowser on 16 January, 2015 - 4:03 am
> The distinction of ... > Contactors often have auxiliary contact sets suitable for much...
By ControlsGirl on 14 January, 2015 - 3:47 pm
My favorite answer. Made me giggle. > I prefer a more pragmatic definition of Relay vs....
By ControlsGirl on 13 January, 2015 - 5:08 pm
I like this answer a lot. It's one of the few that actually specifies when you would actually use a...
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Changing Motor Speed
Posted by DINESH on 11 January, 2015 - 3:01 am
comments on problem
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By Roy Matson on 14 January, 2015 - 6:36 pm
I assume you have 2 potentiometers one for high speed, 1 for low speed and switch between speeds...
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Comparing PLC and DCS
Posted by Anonymous on 6 May, 2004 - 6:34 pm
I am new in the field of automation. Could anybody tell me the difference between PLC and DCS other than I/O handling capacity?
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By rsaradhi on 11 January, 2015 - 12:24 pm
> Can you provide some Input on cost comparison of PLC & DCS? The basic difference is DCS...
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Stripping a HART signal
Posted by drphil69 on 8 January, 2015 - 2:51 pm
What is the easiest way to strip a HART signal?
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By drphil69 on 10 January, 2015 - 3:06 pm
Thanks for your response, Roy. As I said above, I do not know for sure that it will interfere but...
By drphil69 on 9 January, 2015 - 2:43 pm
Thanks for your reply. I do not know for certain that HART would be an issue, but I was warned by...
By Roy Matson on 9 January, 2015 - 1:15 pm
If your HART signal is indeed interfering with the analog input how about sharing the information...
By worknhard9062 on 9 January, 2015 - 11:15 am
First the HART communication will only be present if and when the HART enabled device is being...
By Jorge Muñoz on 9 January, 2015 - 9:27 am
I am sorry for my English. You don't have problems with hart signal because the average...
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Next Steps for Robotics Controls Engineer
Posted by latofte on 29 December, 2014 - 5:14 pm
Looking for advice on how I should approach my next career step.
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By Ed Wilson on 29 December, 2014 - 11:34 pm
There is a lot of availability in growing theatrical and film automation. If you work for an...
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energy savings w/ AC VFD
Posted by stephen on 9 May, 2012 - 2:47 pm
trying to save energy with a VFD on a constant centrifugal fan load.
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By NK on 24 December, 2014 - 7:10 am
I agreed what stephen said. motor at a particular speed is running at some particular load. ...
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Aeg minisemi dc drive
Posted by amin on 29 June, 2014 - 1:24 am
i need a user manual for Aeg minisemi dc drive.
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By j.e on 22 December, 2014 - 11:28 am
hello amin i have this manual please send your email to me. >i need a user manual for Aeg...
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Different Ways of Calculating Instantaneous Torque From a Servo
Posted by John Alperto on 8 December, 2014 - 7:52 pm
I want to calculate the instantaneous torque from a servo. I was wondering if this can be done using the current draw, or externally using an accelerometer.
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By BruceD on 17 December, 2014 - 2:41 pm
Remember that "every action has an equal and opposite reaction". In this case, the action...
By servo_mad on 12 December, 2014 - 11:19 pm
Bruce, I've tried studying your post extensively, but yes, unfortunately I'm still having...
By BruceD on 10 December, 2014 - 9:40 pm
If a motor is driving a load and developing torque on a shaft, the same torque (but in the opposite...
By servo_mad on 10 December, 2014 - 3:19 pm
Well I'm not sure if even I know the motor torque? As for using a load cell, I think I'll do some...
By servo_mad on 10 December, 2014 - 3:14 pm
Hi Bruce, Honestly, what you're suggesting may be a great idea, but I'm having a hard time...
By William Sturm on 9 December, 2014 - 7:03 pm
I guess if you know the motor torque and the mass of the arm, then F=MA + Torque. Or just F=MA...
By BruceD on 9 December, 2014 - 2:03 pm
One way to calibrate the current against the torque is to mount the servo on a horizontal axle so...
By John Alperto on 9 December, 2014 - 12:11 pm
Unfortunately I'm on a budget, and can't afford a rotary torque transducer (everything I've seen is...
By William Sturm on 9 December, 2014 - 8:29 am
With a typical industrial servo drive, there is usually an analog output available proportional to...
Rexroth servo drive and SEW motor
Posted by Sparky74 on 17 December, 2014 - 9:39 am
Running an inverter duty 3 phase motor with Rexroth indramat servo controller.
Opinions Needed on Servo Drives/Motors
Posted by Busarider29 on 16 December, 2014 - 12:21 pm
Emerson vs. Kollmorgen vs. Bosch Rexroth servo motors and drives over EtherCAT.
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Why IRP Used for Interface Between DCS and MCC
Posted by VINNY on 29 October, 2014 - 12:50 am
Why is an IRP panel is used between DCS and MCC?
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By McRajadurai on 16 December, 2014 - 1:38 am
IRP houses Interposing Relays. The reason for using interposing relays are: 1) To electrically...
By George on 31 October, 2014 - 11:21 pm
Vinny, I believe CSA has answered it perfectly. But again, by VAC do you mean the motor should...
By CSA on 30 October, 2014 - 7:15 pm
VINNY, > Why IRP panel is used between DCS and MCC? I presume by "IRP panel"...
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Tolomatic ACS controller
Posted by johnnyboy22 on 3 December, 2014 - 8:50 am
Looking for feedback on the Tolomatic ACS stepper controller/driver.
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By rootboy on 10 December, 2014 - 6:13 pm
If that's the case, can you flash your demo unit to v6? If it's not flashable (or user upgradeable...
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Avoid motor overheating
Posted by damien herold on 26 August, 2013 - 11:23 pm
question on induction motor and overheating
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By Damien Herold on 9 December, 2014 - 2:32 pm
I am thrilled that my motor does not overheat with a 7.5 drive pulley. Thanks for the input though....
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Using an Automotive Alternator as a Motor
Posted by Arnot Franses on 30 August, 2009 - 2:02 pm
Can an automotive alternator be supplied with a synthesised three phase signal to make it into a motor to start an engine with?
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By richard tuhro on 5 December, 2014 - 11:26 pm
I have never tried this but have made alternators into motors by exciting them with 3 phase. ...
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CNC Setup for 4 Axis
Posted by cence on 5 December, 2014 - 12:14 am
CNC setup help needed.
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By TimWilborne on 5 December, 2014 - 8:25 am
Warning this post is about a product we sell. Are you looking for something to stimulate your...
6
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Motor Speed Increased After Replacing PLC CPU
Posted by jeffchye on 1 December, 2014 - 9:17 am
After replacing Omron CS1H-CPU67 PLC CPU unit servo motor speed increased.
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By jeffchye on 2 December, 2014 - 12:45 am
Hi, > Just out of curiosity, why was the decision made to replace the CPU in the first place?...
By PLC Engineer on 1 December, 2014 - 11:40 pm
Check the clock cycle frequency. if it has changed or not. Normal effects would be effected...
By CSA on 1 December, 2014 - 4:48 pm
Jeffchye, Just out of curiosity, why was the decision made to replace the CPU in the first place?...
Gulde Control Valve
Posted by GeorgeJack on 28 November, 2014 - 11:45 am
GULDE control valve site?
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Calculate the Speed of Conveyor.
Posted by Mads Kusk Hansen on 18 November, 2014 - 5:43 am
Calculating the speed of a conveyor belt, using Allan Bradley Powerflex 40. Converting Hz to km/h.
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By Curt Wuollet on 18 November, 2014 - 9:37 pm
You need a way to equate RPM to velocity. This involves finding the speed ratios of any gearboxes...
By Bob Peterson on 18 November, 2014 - 12:23 pm
The drive does not know what the linear speed of the conveyor is. Ut only knows what frequency it...
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Calculating Motor Specifications To Run a Conveyor
Posted by Ashwin on 7 September, 2014 - 2:36 am
How to calculate specifications for motor to run conveyor system?
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By Phil Corso on 17 November, 2014 - 11:12 am
Pumooy... I have a Nomogram that you can have. Regards, Phil Corso (cepsicon@aol.com)...
By Pumooy on 17 November, 2014 - 2:48 am
hello, You can find a solution in www.fasttobuy.com...
Hydraulic Proportional Valve Pressure
Posted by hydraulics on 17 November, 2014 - 7:03 am
Pump pressure when there is a pressure drop in hydraulic proportional valve.
Motor Axial Thrust
Posted by Izhar on 14 November, 2014 - 11:54 am
Asynchronous motor axial thrust
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Radio controlled lawn mower
Posted by Jakarmi on 6 May, 2006 - 10:00 am
Can anyone help with advice on the parts needed for a radio-controlled lawnmower I am about to build?
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By KEN BRAK on 13 November, 2014 - 11:42 am
>buy a used electric wheelchair. this should give you a base to start. wheelchair joystick is...
Brushless DC Motor's Peak Torque
Posted by Ron Mao on 7 November, 2014 - 7:35 am
Peak Torque calculation for BLDC motor
Detecting Particles in Metallic Yarn
Posted by Saad on 6 November, 2014 - 5:13 am
Detection of Metallic particles in Fabrics containing Metallic Yarn
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Change Direction of Baldor SBSC1115 Servo Motor
Posted by sbsc1115 on 2 November, 2014 - 5:26 am
How to change the direction of the Baldor servo motor in the Servo Controller SBSC1115?
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By PLC Programmer on 5 November, 2014 - 2:11 am
Sorry to hear it did not help. Was there any motion at the hardwired test? Did you try firing...
By SBSC1115 on 4 November, 2014 - 5:22 am
Thanks for your help. We have tried to change the pin for moving clockwise and counterclockwise as...
By PLC Programmer on 2 November, 2014 - 9:06 pm
The Operators Manual will clearly pin-point a Forward / Rev Contact in the control cable. Please...