Medium Voltage Variable Frequency Drive for Motor Frequency Control
Doing research on medium voltage Variable Frequency drive (also called as VFD, VSD, AC drive, VVVF, etc.)
Controlling a Stepper Motor
Controlling a stepper motor using variables, but am losing power when it starts moving
Position Control w. PLC and VFD
Position control using sensorless vector techniques.
By Bob Peterson on 12 October, 2016 - 1:34 pm
Instead of reinventing the wheel, why not just buy a VFD that has this built in. If you are using...
Measuring Speed and distance
Basically I am looking at ways to measure the speed and height of a raising arm accurately.
i need a user manual for Aeg minisemi dc drive.
Parameters for a Bosch CC100
In need of parameters for Bosch CC100 on an SCM Routomat 2
Better understanding the behavior of BLDC motor
Toshiba W7 VSD's went down on OV and won't reset
ABB ACS 1000 ac drive tripping on over speed. Which parameter will help to increase over speed limit?
Why use 20 to 160mA instead of 4 to 20mA
High Speed Counter Configuration
Setting up high speed counter in m340 plc
Absolute Encoder Emulation Card Issues.
Having issues with a Beckhoff EL-5002 card communicating with a Bosch Rexroth Encoder Emulator card (DAE02.1M).
Problem Connecting Laptop PC to Controller via RS-232
Posted by Scott Hill on 9 June, 2005 - 12:57 am
Cannot get access to the OC950 via RS-232 while program running, and cannot find a way to stop program.
By Jorge Rivera on 18 August, 2016 - 5:52 pm
This post have a long time, but now I have the same problem. How do you solve that? Thank you...
How to build an ECS for a fisher paykel motor to power a quad copter?
What is the relation between input current and output current in a VFD?
By Curt Wuollet on 5 August, 2016 - 11:52 pm
Lots of questions, Generally power out = power in minus 5 or 10 % to account for efficiency, but...
By Bob Peterson on 4 August, 2016 - 5:55 pm
*I want to know the relation between input current and output current in a VFD. * Output current...
By W.L. Mostia on 4 August, 2016 - 4:15 pm
Yes, it is possible to measure the current on the output side of a VFD if you have the correct...
Can anyone explain what is meant by 4 pole regarding a 3 phase electric motor??
By john on 2 August, 2016 - 8:40 am
Right on brother! Reading all the junk people posted on this subject it is no wonder that some...
Siemens HMI to Emerson Drive via Modbus RTU Communication
Convert Decimal to Integer
How can i convert decimal type (0-100) to integer (0-32768)?
Medium Voltage VFD Drives for Sugar Mills and Cement Mills
I am working on the projects about MV VFD drives for sugar mills and cement mill motor control, for energy saving and process reform.
Need a count/pulse per foot
By SteveMyres on 11 July, 2016 - 8:06 pm
Chain's fine if you have a support. Heck, it wouldn't even work right without the support. The...
By Mike Larkin on 11 July, 2016 - 2:12 pm
I just hope your machine is gear driven instead of chain driven. It is impossible to get any...
Automating a Workcell Robot
After our integrator failed miserably to do his job, I was tasked by my boss to integrate a Fanuc robot into our CNC line.
I would like to know which is the best method to check the stability of a PD adaptive algorithm
By Jeibros on 1 July, 2016 - 12:18 pm
Hi, I do not agree about using absolute value in this case, as this would imply that Kp and Kd...
Why is a Default 0 Switch Added to PLC Logic?
I'm analyzing programming code for a client and I noticed a switch that basically prevents the PLC from writing an input to a variable. I'm not sure why the original programmer added it there. Details are below.
AB QB Module - Simple test program
Have some 1771-QB Modules to test
EtherCAT Deficiency in Line Topology
Issue related to EtherCAT line topology configuration.When a device in the line is removed , behavior of other devices shifted one device a head.
Programming for Modicon Bridge/Mux BM85S485
I need assistance in programming a Modicon Bridge/Mux BM85S485. The product is obsolete, and Schneider no longer provides technical support.
By George Bezeredi on 25 June, 2016 - 6:10 am
If the problem is still pending just contact me. I can help with comments and samples....
PLC Totalizer Under Reading
PLC not read values from weigh belt Ramsey integrator totalizator correctly
Motor taking unbalance current with kick on the transformer
By Venkat on 17 June, 2016 - 11:54 am
Suggest to check winding insulation resistance and compare Thanks & Regards Venkat...
Siemens Hardware for Tinplate Scroll Sheeting Line
Configuring Siemens Hardware for Tinplate Scroll Sheeting line
Variable Frequency Drive for BLDC Motor
Controlling speed by using a VFD for BLDC motor
By James Ingraham on 6 June, 2016 - 4:06 pm
It is not clear to me from your response why you MUST use a BLDC for your application. Why...
Two Phase vs. Three Phase Application
Posted by R. Button on 5 June, 2016 - 3:00 pm
Powering an inline tankless heater with 240V when it is rated for 277V
DC speed control is irregular
By Steve Myres on 30 May, 2016 - 7:54 pm
Your relay contacts are probably burned up to the degree where they're high resistance. Switching...