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Today, Thursday, September 2, 2010A radio telescope control system.
How to go from a transfer function to a PID electronic circuit
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According to Fourier (french mathematician) you can approximate any function in time by a sum of...
search the web for "bode diagram ziegler nichols"
You can plot the bode diagram of...
By Peter Nachtwey on 27 August, 2010 - 2:08 am -
> Have simulated with MATLAB and derived a transfer function. <
So what is it? We can't...
Looking for MPA-15-378 Servocontrol manual
Implementing a simple position control from in a Kuka KRC2 robotic controller. Controlling an external Hydraulic system with an incremental encoder feedback, using WAGO analogue out and encoder inputs
What is the benefit of a high-bandwidth control for synchronous motors?
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Ok, it is exactly what has been done for the speed loop. I believed that you had a special method...
The measuring of any loop bandwidth is well-known procedure. I hope that you use one of standard...
Ok, thank you for your help. I will do some tests in this direction.
I did not understand your...
Bandwidth of current loop can be measured at stall rotor location. You may use current monitor...
The bandwidth of current loop haven't been measured but is in theory around 3 kHz.
For a spindle...
Such 1kHz bandwidth seems very high even without load. What's bandwidth of inner current loop?
...
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.)
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By Praveen kumar on 25 August, 2010 - 4:11 am -
Dear Mr.Mahesh,
I am working in Yantra Automation Pvt Ltd(India).
I have install 8 Mv drives...
By Praveen kumar on 25 August, 2010 - 4:00 am -
Please explain your problem briefly, like make of the drive, and application and all....
By Venugopal Balla on 20 July, 2010 - 1:13 am -
DO you have this report prepared ?
balla.venugopal [at] gmail.com...
Looking for a solution how to control a custom robot
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By Ken Emmons Jr. on 23 August, 2010 - 7:13 am -
The axes should probably not be called X and Y on a scara, although it is arbitrary it is confusing...
Better way vs. PLC is motion controller. Than Dual axes DMC controller with build-in servo amps...
By William Sturm on 20 August, 2010 - 8:00 pm -
I would suggest a PC based system with a motion card such as a Delta Tau PMAC1 or a Galil DMC. It...
By bob peterson on 20 August, 2010 - 5:31 pm -
A lot depends on the performance you need.
How much money do you have to spend and what are your...
I am looking for a simple solution for decentralized I/O with some gateways
characteristics of slip ring motor
Question about Null Bias effect and relation with Fail to ignite issue.
Facing high Vibrations problem at I.D Fan.
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By jojo on 16 August, 2010 - 2:05 am -
Following Phil's comment, can Al indicate what is the operating temperature of the air/gas passing...
Does anyone have an example of the usage of the autotune EFB in Unity??
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By Skinner on 5 August, 2010 - 7:31 pm -
Try the manual in this link.
I only ask you to e-mail me when you find out how to use it because...
How to avoid noise in feedback and communication cables?
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By Denson on 4 August, 2010 - 11:52 pm -
Hi
Thanks a lot I am able to come out of this problem ...
By curt wuollet on 4 August, 2010 - 2:59 pm -
The what is easy. Noise in the environment causes most noise in feedback and communication cables....
Cause of noise? Electrical and magnetic fields from other cables or electrical equipment, radio...
By Ananymous on 4 August, 2010 - 8:27 am -
Noise is usually due to High Power Lines.
One of the methods to decrease induced noise is using...
By Ken Emmons Jr. on 4 August, 2010 - 8:25 am -
Here are things you can do to mitigate noise in a feedback cable. For this discussion I'm assuming...
To find control unit for Position Control of a flying Shear
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Jack,
Given the size of your prime mover and your desire to use an S7 PLC - (and as I understand...
>line speed varies between 10-50(m/min)
>length of work piece 1-12(m)
>thickness of work...
By jackkellog on 1 August, 2010 - 1:24 am -
hi dear ken brown;
the line speed varies between 10-50(m/min),the length of work piece changes...
By jackkellog on 1 August, 2010 - 1:06 am -
hi dear all may i have your email addresses so that i could send you some pictures in this case?
...
By Peter Nachtwey on 31 July, 2010 - 7:11 pm -
---- snip ----
>We could develop a much better set of
>recommendations for you
Yes,...
the closed loop anti surge control equation for the centrifugal compressor
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Dear marco,
Thanks for these details, they give a good understanding.
Just I want to inform you...
I am working on a permanent magnet synchronous motor, and having trouble getting some variables...
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By Thulani on 2 August, 2010 - 7:06 pm -
I am designing a DTC based control system for speed control of induction motor. I need to know the...
three phase induction motor
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By Adam Fendom on 2 August, 2010 - 4:50 am -
For a standard squirrel cage induction motor, there is no impact. I think pretty much all are...
in process of procuring a flying shear to cut steel rods 16 to 40 mm dia at 600 Deg temp
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By jackkellog on 1 August, 2010 - 2:02 am -
hi dear Anand;
i'm dealing with the same project. my controller is a micromatik plc and i want...
Is it possible to run 3 phase alternator anti-clockwise instead of clockwise?
motor phase voltage shoots up unexpectedly
my question is regarding D C motors
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By jojo on 29 July, 2010 - 1:09 am -
I would like to add two small checks that needs to be performed to all the above.
1. Have you...
Shetty... Excellent, thus far.
Now provide some data regarding: driven machine; load (Amps);...
Responding to Shetty's 23-Juk (14:54) question... There are a number of causes, To start with few:
...
How to compensate for a zero level error in a vacuum application.
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Hi again,
Ok I get it now about the offsets and switching between them with the stop and start...
Sir, i think you have misunderstood otised, You can use the software function of the DCS, use the...
By dave on 26 July, 2010 - 8:30 am -
Assuming that you are measuring the bottoms level, at least for the dearator towers in my...
Calculation of power consumed by three phase induction motor
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By win on 25 July, 2010 - 11:33 pm -
> In the past I was advised that instructions via E-mail were too confusing to follow....
How does a mechanical timer work?
SRV (stop ratio valve) got stuck at 36.5 % during load reduction and no reference is showing in dcs.
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Many F-class turbine installations have a gas fuel compressor. If the pressure output of the gas...
Control challenge: simulation of a spring by reel/unreel a rope with an ec-motor depending on the applied tension force -> increased dynamic abilities of the system wanted
i want change DC motor system with AC motor & vfd
LVDT wiring connection - need to know each cable is for
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Hello Absalón Diaz,
On OUR site, the connections are as follows
INPUT: Black and Red
OUTPUT:...
scm routron router with bosch cc100 control
need to show motor rpm on pc.
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By sukhi sagoo on 13 July, 2010 - 4:07 pm -
>> Just tell me if there is any speed measuring device installed on your motor or not?...
What is high side over current with respect to a Brusless DC motor
Calculation of DC motor parameters.
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By asif on 7 July, 2010 - 8:21 am -
can u email me the document at " asif_749@yahoo.com "
...
Motor drawing same current W and w/o load
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By Ian Jones on 6 July, 2010 - 10:31 am -
This is to be expected particularly with small 3 phase motors, generally the first effect of...
Heidenhain ERO 115 encoder technical alignment specs and procedure
Motor Performance and VFD
Does anyone have experience on using a 1.5 KW inverter to drive a 90 Watt motor?
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Dear Mr. Vinod,
Coal feeder is constant torque application. So its depends on the vfd model...
Information about Chinese multi cell technology and its liability
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