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Is it good practice to clean Moog valve with thinner or what is your opinion for Moog servo valve service?
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CSA,
We are not yet purchase the servo valve test kit. It is waiting for budget approval. We'll...
G.Rajesh,
Can you provide some update about the servo-valve test kit your site was purchasing...
Dear G.Rajesh
Nice to see you.:)
i work in a servovalve manufactory in Shanghai, so i am very...
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 Pradeep Pandey on 12 October, 2012 - 7:07 am -
What is the difference between a Variable Frequency Drive and a Variable Voltage Variable Frequency...
False Tripping of CW motors due to high winding temperature (RTD Problem) from many years.
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By Roy Matson on 10 October, 2012 - 7:44 am -
> Local TI gauge always shows correct reading but same wire after passing
> through JB...
By Jay on 9 October, 2012 - 3:55 am -
> To summarize, there appears to 2 problems, maybe related to one another:
> - one is a...
Editor at Control, Control Design and Industrial Networking needs to know how social media tools are used to solve industrial networking problems, and requires responses, e-mails or interviews by mid-October.
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By Jim Montague on 8 October, 2012 - 12:54 pm -
Dear David -- Thanks for responding to my questions. Would it be possible for your to identify...
It's fascinating to me that web fora, like this venue, control.com, are not included in the social...
from the mobile robot, linear feedback department...
A problem about system equations of a linear feedback controllerthe control algorithm about the dynamic model of a differential drive robot
program to transfer my cnc programs back and forth from PC and cnc lathe
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By ahmed on 2 October, 2012 - 3:47 am -
you can use software called term do you have if you do not have please send me email to send you...
the closed loop anti surge control equation for the centrifugal compressor
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By kashif on 29 September, 2012 - 8:39 am -
Dear Marco,
I dont have practical experience of how to commission antisurge controller during...
I have a question on typical practices for system similation and studies after one has identified (approximated) the transfer function coefficients of a plant.
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1. It isn't so important acceleration or velocity you will use because ones differs by operator...
Hi Leon, thanks for your time!
See answers below
> 1. Do plant's transfer function is...
Some questions before advice:
1. Do plant's transfer function is related to velocity-to-current...
I have 10,000 Cummins Generators in Eastern EUrope that I need connectivity to with out back end system. I have been tod several time, no problem, but to date no results.
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By Cervantes on 22 September, 2012 - 12:22 pm -
Older Cummins is likely Lonworks communications. On the newer product they took a step backwards...
how to check a faulty encoder?
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Hi Vipul
Encoders will not give reference. They are supposed to tell you the RPM of the motor by...
Is it possible to run 'C' code in compact logix controllers using RSLogix 5000?
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By El RayO on 20 September, 2012 - 10:19 pm -
See the Prosoft website for the 1769 "C" module....
Share your experience with PLC vendors to help other control & automation users select products.
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By RussB on 20 September, 2012 - 10:57 am -
> It would be a more professional survey if Australia was spelt correctly and if
> Canada...
By Brian on 20 September, 2012 - 8:55 am -
It would be a more professional survey if Australia was spelt correctly and if Canada was...
Difference between I/P positioner and I/p transducer
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By Mehboob Akber on 20 September, 2012 - 8:05 am -
From application point of view I/P can position an actuator but in very limited applications and...
from the what does 1Vpp mean? department...
how much is the amplitude of sin/cos encoder of heidenhain ern1387 I design a interface circuit of sin/cos encoder,
but i don't know the amplitude of its output. Do different companies produce this kind of encoder with the same output voltage amplitude?
but i don't know the amplitude of its output. Do different companies produce this kind of encoder with the same output voltage amplitude?
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Hello, I'm trying to read a ERN1387 encoder, I see signals pulses of 100mV mounted on 2.5 V DC,
...
basic differences between contactor and relay?
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By Gireesh Gokuldas on 16 September, 2012 - 7:33 am -
Thanks Mr.Bobb,
its just now my superior asked me this simple question. actually i was not aware...
By Ngoato on 10 September, 2012 - 5:08 am -
The 15A limit for a relay is not always appropriate as can be seen on this site concerning a relay...
Magnetic levitation controller
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>I assume my constants "were" tuned incorrectly because I have not a good of tuning...
For manual tuning of your servo with one sensor you can use recommendation from Galil - one of...
1. Range of lesser resolution sensor is 1cm. Range of higher resolution senros is around 0.1mm....
interesting project!
as explained by Leon,
1. what is the range of the sensor of lesser...
If you change resolution of feedback sensor, that control loop gain increased accordingly. Except...
Servo Drive reaction when at high speed and torque require exceed max torque on motor.
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You must review SOA of your motor from Speed - Torque curve. As a rule a nominal torque is defined...
Because this is a servo loop with feedback, the system will only demand from the motor wharever is...
drive is displaying fault code (ST 370 REVSPEED)
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By CH on 5 September, 2012 - 7:35 am -
> drive is displaying fault code - ST 370 REVSPEED. Don't have any technical
> documentation...
I have 3 different VFD brands I would like to control using Modbus RTU. I have a Prosoft MVI46-MCM card in a SLC 5/04 rack.
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By ES on 4 September, 2012 - 1:48 pm -
ProSoft actually has a training document for that card on their website that talks about the setup...
By Steve Myres on 31 August, 2012 - 12:59 pm -
Done! :)...
By Jim on 29 August, 2012 - 4:50 pm -
> I have some pretty good SLC code for operating that card that I should be
> able to find. ...
By Steve Myres on 28 August, 2012 - 10:56 pm -
I have some pretty good SLC code for operating that card that I should be able to find. Post your...
Working in the applications of ABB AC450
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By Rob on 29 August, 2012 - 2:48 pm -
http://search.abb.com/library/Download.aspx?DocumentID=3BSE054892& LanguageCode=en&DocumentPa...
Need a start up guide for sinumerik 840D sl
I have a noise problem associated with a VFD/motor (75HP 460v wye start/delta run) system...
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By Conor on 25 August, 2012 - 5:35 pm -
I am by no means an expert on this topic and I am reading many great comments from my peers on how...
AC reliance drive gives unbalance output in one phase (R 170, Y 300, B 300)
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By Phil Corso on 24 August, 2012 - 8:54 am -
Self… the values you cited indicate very severe unbalance!
Based on both NEMA and IEC Standards,...
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