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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
Dentist, n.:
A Prestidigitator who, putting metal in one's mouth, pulls
coins out of one's pockets.
-- Ambrose Bierce, "The Devil's Dictionary"
A Prestidigitator who, putting metal in one's mouth, pulls
coins out of one's pockets.
-- Ambrose Bierce, "The Devil's Dictionary"
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When we lift a load about 10 tons, it runs well, but with a load about 12 tons, when starting pull up, load pulls the hoist down...
New Replies:
By satya on 4 March, 2009 - 1:01 pm -
Dear Friend,
You increase the ramp up time to 5 second so that the starting current can be...
Motor classification
New Replies:
You are right Sandy that the equipment selection can't be done only on the basis of type of...
By Mandar on 2 March, 2009 - 8:26 am -
You have not specified what the motor label says. You have just specified the Class (refers to...
By Sandy on 2 March, 2009 - 7:10 am -
Be very careful in what you say regarding Flameproof Motors.
No 1 because it is Eex d rated yes it...
By cmeonsky on 28 February, 2009 - 6:41 am -
of course you can use group d equipment in zone 1 and zone 2. These are flame proof equipment which...
Searching for explosion proof motor fractional Hp motor. Would prefer a geared motor similar to a Globe geared motor.
RTU over Ethernet Problem
New Replies:
By Fred Loveless on 3 March, 2009 - 1:59 pm -
Modbus over Ethernet is usually Modbus RTU encapsulation in an Ethernet Packet. Modbus TCP is...
By Manikandan on 2 March, 2009 - 10:07 pm -
Hi, You can use a MODBUS Gateway to convert Modbus RTU to Modbus TCP. Don't use MODBUS RTU running...
100Hz-1KHz mechanical vibrator
New Replies:
By nancy on 3 March, 2009 - 3:52 am -
yah,it matters the controller, you can choose a dc servo controller, do u mean the speed loop...
By Curt Wuollet on 28 February, 2009 - 4:23 pm -
You are going to need an extremely fast motor and control system to
provide much displacement at 1...
By William Sturm on 27 February, 2009 - 12:15 pm -
Most motors I am aware of, linear included, won't oscillate much over 100HZ. I have done sine...
A few questions regarding the coding system of modbus RTU
New Replies:
By Jesper on 28 February, 2009 - 5:04 am -
Thank's for your replies.
This makes things a lot clearer. I now get the start, stop and parity...
>My 1st question:
ANS: For RTU mode there is No Parity. RTU mode uses CRC error checking. An...
Start, stop, and parity bits are added to your data words by the UART. Your program will never see...
Understanding AC Drivers DC Capacitor lifetime
New Replies:
By Curt Wuollet on 27 February, 2009 - 1:15 am -
Monitor ESR or ripple voltage.
When they dry out you will see an increase.
Regards
cww
...
Need circuit board for monitor on bosch cc100 controller...
New Replies:
Hi.
we have a Wadkin UX with CC100.
masproductions55@hotmail.com...
Seeking SEW moviret 108 dc drive service manual.
New Replies:
njoroge
In the past, SEW Eurodrive has recommended replacement dc drives from EuroTherm (the...
Controlling ULTRApac motors through matlab codes
None
New Replies:
A Google search of 'tripping classification' listed this as one of the first three references:
...
I have a problem with speed control.
New Replies:
By etischer on 23 February, 2009 - 7:42 pm -
Actually I discovered the same thing. At low speed the drive appears to be running in v/hz instead...
Can we use same proxy probe as vibration sensor for different material.
I'm requesting for datasheet of vexta 2 phase stepper motor which the model is PH266-01
New Replies:
By Motonobu on 18 February, 2009 - 10:41 pm -
VEXTA STEPPER PH266-02-A29
>specs required please
I think PH266-02-A29 is a custum-made...
By Andre on 11 February, 2009 - 1:29 pm -
If you are searching still, please e-mail me. I can give you brief manual of PH266-01. VEXTA...
Physical interpretation of Bandwidth in Servo Hydraulic Control
New Replies:
By Peter Nachtwey on 17 February, 2009 - 10:41 am -
Yes, the signals are usually -10v to +10v to a proportional valve with on board electronics ( OBE )...
By amaren on 16 February, 2009 - 12:49 am -
Yes we do deal with dc signals. but a step change in DC value is made of number of ac signals with...
Backup protections required for medium voltage AC variable speed drives
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:
By Rob on 16 February, 2009 - 2:02 pm -
There's no way that we can recommend the correct size of drive for your application from the...
By Imran Qureshi on 16 February, 2009 - 4:23 am -
Dear Mahesh
I planned to install a MV variable speed drive for the 380kW 6.3kv cooler exhaust fan...
By Leo on 13 February, 2009 - 9:59 pm -
Hello,Mahesh,
I am also electrical engineer. I need to write Technical Report to get professional...
effect of changing range calibration of pressure transmitter?
New Replies:
Rangeability might be a issue. Also you have to enter new range in your controller/DCS/PLC....
By Rob on 15 February, 2009 - 8:29 pm -
First, check the documentation for your particular control system.
You probably need to set up...
speed of FD Fan in Power Plant
New Replies:
Hi, you,
The most common method of controlling the air flow-rate of a centrifugal fan is by...
Can't edit Bus properties in ELOP II
New Replies:
By Kashif on 9 February, 2009 - 4:22 am -
Thanks Tahir,
Maybe I can clarify myself better in the following way:
1.When I add this...
How to implement the space vector modulation technique in an inverter...
AB CLogix HYD Modules
New Replies:
By Bruce Axtell on 6 February, 2009 - 11:42 am -
Have you tried PLCcenter.com?
Bruce A.
...
Rexroth A10VO45DFLR pump adjustments
Can you tell me about moog servovalves
New Replies:
The last three digits tell you about the so called model designation, assigned in the factory....
I am trying to connect a 6RA70 to my DP network.
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