copy and paste this google map to your website or blog!
Press copy button and paste into your blog or website.
(Please switch to 'HTML' mode when posting into your blog. Examples: WordPress Example, Blogger Example)
Input Form:Deal with this potential dealer,buyer,seller,supplier,manufacturer,exporter,importer
(Any information to deal,buy, sell, quote for products or service)
What is an Interlock? | Different Types of Interlocks - AutomationForum What is an electrical equipment interlock and why interlock is required? The electrical interlocking is done to make sure that the equipment is safe, the electrical interlock is mostly used for substations and they are also used in many industries for the safety of industrial purposes The isolators and switch gears are the protective devices that would provide proper and smooth operation of
Interlock test procedures | Automation Control Engineering Forum I am looking at developing a standard methodology for developing interlock test procedures for safety critical systems for where I work We have a number of systems that use dangerous chemicals and we need to have a standard methodology for how we develop these procedures I have looked
process interlock and safety interlock?? the difference? I want to understand the difference between process interlock and safety interlock as i came to know that process interlock is configured in dcs, while the safety interlock at Plant shuddown system what is the core difference?
what is an interlock? | Automation Control Engineering Forum An interlock is a condition or series of conditions that must be met to allow an operation or process to continue Examples are numerous, but some general examples include: shield interlock- the machine cannot run unless all the safety shields are closed flow interlock - the operation cannot continue unless the coolant flow is adequate pressure interlock - the operation cannot start unless
Cause and Effect Drawing in process instrumentation Causes can include a change in the state of a digital input, a High High Low Low alarm from an analogue input, and interlock logic, among other things Effects can include tripping a motor or pump, closing a valve, opening a pressure relief valve, activating an emergency alarm, Beacon Hooter, and so on Detailed Explanation of Cause Effect Drawings Some projects categorize Cause and Effect
DeltaV Device Control Function Block operation INTERLOCK_D is the optional discrete input value and status that must be True when the Interlock device option is enabled for the device to remain in the Active state My understanding and usage like most controls a lot of people assume permissives and interlocks are the same, they are not
What exactly is permissive | Automation Control Engineering Forum An interlock can also be a permissive, but a permissive is only a permissive For instance, if I need the level in the tank to be above a certain point to start a pump, it is a permissive, if I also need that level to be above that same point to keep it running, now it has become an interlock
Interlock, TRUE or FALSE | Automation Control Engineering Forum For safety interlocks, the interlock should be True or a "1" if allowed to advance or to permit the action that is interlocked This way if you lose power in the interlock, you are not allowed to advance (e g failsafe) It is always better to indicate a safe state with positive logic Most every time I have seen where reverse or negative logic is used, particularly is mixed with positive