I am currently battling with a conveyor belt application where a 4M wide 1200M long belt driven by 4 motors using scoop actuated fluid couplings (which when fully engaged) uses almost twice the KW in 2 of the motors, as it does in the other 2. Can anyone direct me to a source of information on this subject, or perhaps offer an explanation as to why and how to control this ...
By Robert Miller on 10 January, 2017 - 5:50 pm
I work with 3 phase asynchronous motors often in dual or triple tandem. sometimes 5 motors (series...
Understanding Electric Motor Dynamometers
I am trying to build a electric motor dynamometer to test AC/DC motors up to 20HP. I need help understanding some of the parts please.
I/P positioner and I/p transducer Control valve
Difference between I/P positioner and I/p transducer
Drive PWM/Carrier Frequency Question
How does the carrier frequency relate to number of pulses a PWM drive puts out?
Relay Coil and Its Normally Closed Contact
Connecting a normally closed contact of the relay with the coil of relay
Magnetically Coupled Drives
Can I use a magnetically coupled drive work through 2 inch thick polypropylene?
Modbus RTU Communication Between HMI HNC-TP2507 and DANFOSS FC51
Posted by Sebastian Azcurra on 9 November, 2016 - 3:02 pm
I need to operate an FC51 with an HMI (HNC)
Placing a Motor in an Explosion Proof / Intrinsically Safe Location
What are the physical/electrical barrier requirements if I want to locate a motor in a hazardous location with its associated drive outside of the hazardous location?
Siemens Simoreg DC Drive Fault Message F030, F035
Siemens Simoreg DC Drive Fault Message F030, F035
By Neil on 5 December, 2016 - 5:32 am
Has it lifted more than 20 tons before? With respect to the 6RA2485 series of DC drives, F031=...
Looking for recommendations for an evaluation board for a BLDC hub motor.
Setting up Profinet I/O in Siemens TIA Portal
Siemens PLC Controlling a Lenze servo
By Steve Myres on 28 November, 2016 - 4:10 pm
The general procedure for third-party slave devices is to download from the manufacturer the...
Will a VFD Output Single Phase?
VFD outputting single phase
By Curt Wuollet on 30 October, 2016 - 12:56 am
Even if they did, single phase motors of the usual types wouldn't really work well. Remember the...
By aan aan on 28 October, 2016 - 10:48 pm
Hello Mays, You can use a VFD to drive single phase motor, but the motor can't use a switched...
By Steve Myres on 28 October, 2016 - 7:33 pm
Single phase motors will almost never operate well at variable speed due to the way they start. And...
By Bob Peterson on 28 October, 2016 - 6:33 pm
Single phase motors have a starting capacitor. That makes them incompatible with VFDs....
Absolute Encoder SSI Interface and Grey Code
How does an absolute encoder works with the SSI interface and what is grey code all about?
By Ron on 1 November, 2016 - 7:42 pm
To make it simple Grey code just changes one position at a time. In binary if you go from 1...
GE 9FA Gas Turbine Fan When Running Standby Fan Getting Reverse Rotation
Gas turbine fans when running standby fan getting reverse rotation which is leading to burnt motor
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)?