• State Not Answered
  • Replies 2 replies
  • Subscribers 5482 subscribers
  • Views 18024 views
  • Users 0 members are here
Recent DeltaV Community Connect Discussions
Similar Posts
What is the exact difference between the Unit Parameters and Recipe parameters?
exact installation location of Profibus gateway in order to transmit Hart signals to AMS
What to Do When the DeltaV Calc Block Is Not Enough
What is the named state parameter for ISEL block SELECT_TYPE?
what type of faceplate should be used for a lab entry function block.
Share
  • Not Answered

What is the exact use of CRACK_TIME in DC Block?

Could someone explain what is the exact use of CRACK_TIME in DC Block?

manik

2 Replies

  • Matt Stoner
    Consider a valve with Open and Close limit switches:
    If you Open the valve and it is currently close, the crack time is the amount of time given to see the Close limit switch go away (which should be quick, i.e. 1 or 2 seconds)
    If the Close limit doesn't go away, the valve is probably not moving or the switch is broken and so the DC fails earlier instead of waiting for the entire Open travel time before failing
  • manik

    In reply to Matt Stoner:

    Hi Matt, Thanks for the response.

This is the official online community site of the Emerson Exchange, a forum for the free exchange of non-proprietary information among the global user community of all Emerson's products and services. Our goal is to improve the efficiency and use of automation systems and solutions employed at members’ facilities by sharing our knowledge, experiences, and application information.

Community Guidelines | Legal Information | Privacy Policy | Contact Community Manager

Website translation provided by Website Translator

© 2015-2026 Emerson Exchange. All rights reserved.