Sizing RC Network for Contactor
Sizing a RC snubber circuit for a size 1 contactor.
ph and Conductivity for Scrubber
Why is there a need to have ph and conductivity reading for scrubber?
Phase to earth voltages are heavily unbalanced
When we run the DG with neutral ungrounded, the phase to earth voltages are heavily unbalanced. And it is changing during the course of running.
By Bob Peterson on 19 August, 2018 - 4:51 am
If it is not connected to Earth, it is unsurprising that the phase to Earth voltage is not the same...
Mark VI Comm Failure 1298
GE gas turbine Mark VI communications failure 1298
Transfer tags from Excel spread sheet into 1756-L7x Controller Tags
By Bob Peterson on 19 August, 2018 - 4:49 am
Make a few tags and export them to determine the file format. Then add tag to the file and import...
By Dave Ferguson on 17 August, 2018 - 7:52 am
The easiest way to do this is to export the database currently in the processor to see how the...
Megohm Meter to Test Weld
If the weld is closed will I get OL signal?
By Steve Myres on 18 August, 2018 - 4:50 pm
Sounds more like this is an isolated, ungrounded t/c design, and they're checking to make sure the...
By d on 18 August, 2018 - 9:08 am
to answer your question, you'll need to provide a dimensioned drawing(s) of the sensor, and...
Modbus Star Topology and resistor
By a062549 on 18 August, 2018 - 2:49 pm
>Would that be ok to connect one device in a star topology. >Do I need to put a 120 Ohm...
Flame out on Low Engine Temp T5, Solar Taurus 60
Solar Gas Turbine Taurus 60 machine tripping on 'Flame out on Low Engine Temp T5'
LVDT .7 V adjustment procedure?
Need Modbus TCP C++ library
Is DI water good for compressor wash?
By TomasEduardo on 17 August, 2018 - 10:29 am
CSA, Very nice explanation of the variables of successful (and not) off-line water washes. I...
Generator breaker question
Will machine go on over speed?
GE MK_V Turbine Not Responding to Load Command on Governor Control
Experiencing problems with a GE MK_V turbine control system. When load command reaches 63% while in governor control, load will not respond. Control has to be put in load limit mode to raise or lower load at this point.
Is it possible to create a counter for Starting System running hours counter ?
Info for remote connection to PLC
no receive data from slave
VCMI IO chngs «R»«S»«T» OK - L3COMM_IO
Intermittent flashing red to green and vice versa and one comm card is making noise...
Generator Digital Protection (DGP) relay lockout lost its memory.
How to resolve the SATURATION Problem on Rosemount Transmitters
By W.L. Mostia on 13 August, 2018 - 12:03 pm
I would try the following to see if you can get any additional clues to help you out: 1. The...
By Amar DAMENE on 13 August, 2018 - 2:58 am
Dear all, Yes, I agree with you. I have read what the 3051 manual says about saturation level...
By Amar DAMENE on 12 August, 2018 - 3:06 am
Dear William, I will try to be more specific in my problem description. My problem that the...
ACS850 Motor Control Problem
ACS850 Drive Motor Control Problem
By W.L. Mostia on 15 August, 2018 - 1:44 pm
You need to provide more information regarding your problem like what have you done to troubleshoot...
PC to Modicon A984-145 PLC wiring diagram?
I need a wiring diagram to connect my notebooks com port to the a984-145 so that I can program it with proworx.
By Doug on 14 August, 2018 - 10:07 pm
The wiring is specific there are 3 crossovers and a loopback. Search internet for modicon 984...
DP type flow transmitter on vacuum column
We have DP Type flow transmitter on pump discharge and this goes to a column under vacuum. Production says flow is not correct.
By W.L. Mostia on 14 August, 2018 - 5:24 pm
We need to know more information such as: 1. Does the transmitter zero properly? 2. If the...
By d on 14 August, 2018 - 9:45 am
D/P transmitters work in such installations, but you need to elaborate. For example, 1. Type...
Siemens HMI Modbus RTU master communication crash
Siemens HMI TP1200 is Modbus RTU master. Modbus device cam controller is slave...
By W.L. Mostia on 14 August, 2018 - 4:06 pm
You need to provide some more information to get some help from this forum. For example: 1. ...
Flame Failure : Frame 6B Machine
Frame 6 B machines; Mark Vie . DLN-1 system , synchronized with grid. Partload operation Flame failure in Premix steady state .
Temperature Control with Labview and Modbus ASCII
Posted by Stefanie Wernet on 19 February, 2018 - 8:19 am
I try to read a temperature control, which uses Modbus-ASCII. Sadly I do not know, which Input-string I have to send and how the answer has to be interpreted.
By Ryan Porter on 13 August, 2018 - 3:31 pm
I would recommend trying one of the ready-made Modbus libraries for LabVIEW. The Plasmionique...
Have written a draft for a book about Modbus, is there any interest in this?
By Curt Wuollet on 12 August, 2018 - 11:49 pm
This is awesome and fills a definite need. For content, you should look back at the questions on...
Rotational Direction of a Turbine Generator
Could you please help me clarify if the rotational direction of a turbine is always the same.
Any truth to the rumors the MicroLogix 1400 is being phased out?
Sepam output 4-20 mA with PLC
Reading Sepam S42 4-20 mA with PLC
Communication Beckhoff Trouble
Checking all the electrical wiring and equipment after flooding
Plug points were submerged. Water pump and motor etc were submerged.
By d on 11 August, 2018 - 1:11 pm
A "megger", basically a 500 volt insulation tester is most common for low voltage wiring,...