We have a Yokogawa Micro-XL DCS, which is having around 300 I/O, but whenever there is any wire gets grounded in field, the 24v supply to all loops gets dipped & all the indications at DCS goes to IOP(shows input open), at present we have fixed 500mA fuses in all the lines but which does not working. Does it required to replace with lower amps fuse, then how much or is there any other solution for this.
Answer Posted / guest
This is happening because of "Ground loop", you may use
Isolators to avoid.
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
Why do we have earthing cable in branch cable and shield in the same cable?
why we take %i0.0 as input for twido plc
principle of automatic votage regulator
How to calibrate H2s Dectector
1.what is controller proportional gain 2.what is the controller intergral action time. 3.A proportional plus derivative controller that has a proportional band of 20% and a derivative action time of 0.1 minutes. Construct the shape of the output waveform for the triangular input if the input rises and falls at the rate of 4 units per minute.
Why mmwc unit is used?
Hi Friends i am going to write BARC written test by this month 20th (20-5-2008). So please if any body knows the details about this or having previous question papers pls mail me to kkumarei@gmail.com. For Suggestions give one message to 9962122264
all types of liquid analyzer principle with drawing?
What are the key features of a Distributed Control System? describing the various layers (sensor through to business system interfaces) as well as the hardware, software and security aspects of the DCS.
Please can anybody help for control valve sizing step by step procedure?
how to rectify the poor signal strength in utrasonic digtial flow meter ,model:ge digital xce868i
What is motion balance principle?
how to calibrate steam control valve in steam turbine
what are the diff. in servo and regulatory control?
what is piezoelectric transducer?give an example in power plant n state its principle?