Results 1 to 4 of 4

Thread: Ramp DC Return Pump

  1. #1
    New User
    Join Date
    Jul 2018
    Location
    Mississippi
    Posts
    4

    Question Ramp DC Return Pump

    I'm setting up a VarioS-8 return pump with 0-10V control.

    I want to do something like this:

    Fallback ON
    Set Ramp000080
    If FeedA 000 Then Ramp080030

    But after feed mode I want to ramp from 30% back to 80% and not drop down to 0%. Can I do this?

  2. #2
    Frequent Contributor zombie's Avatar
    Join Date
    Dec 2013
    Location
    Denver, CO
    Posts
    13,176
    I would just make your set ramp 30 to 80. The quick jump from 0 to 30 is actually better for the pump than ramping from 0 since it will be stalled less time.

    Sent from my SM-G965U using Tapatalk

  3. #3
    New User
    Join Date
    Jul 2018
    Location
    Mississippi
    Posts
    4
    Quote Originally Posted by zombie View Post
    I would just make your set ramp 30 to 80. The quick jump from 0 to 30 is actually better for the pump than ramping from 0 since it will be stalled less time.

    Sent from my SM-G965U using Tapatalk
    I thought soft starts were supposed to be better for the pump. Hmm. Interesting.

  4. #4
    Frequent Contributor zombie's Avatar
    Join Date
    Dec 2013
    Location
    Denver, CO
    Posts
    13,176
    Quote Originally Posted by skep18 View Post
    I thought soft starts were supposed to be better for the pump. Hmm. Interesting.
    Soft starts are better, but the power delivered between 0-30% is often not enough to even move the impeller, and stalling is worse than quick starts to low intensities. A jump from 0-30 immediately is better than a ramp from 0-30 and both are better than a jump from 0-100.

    Sent from my SM-G965U using Tapatalk

Similar Threads

  1. Help! Return pump soft ramp after feeding
    By staffdd in forum Apex Programming for Vortech, Tunze, & Other Controllable Pumps
    Replies: 2
    Last Post: 03-01-2018, 17:32
  2. Question: Variable speed return pump ramp up
    By Splatt44 in forum Apex Programming for Vortech, Tunze, & Other Controllable Pumps
    Replies: 3
    Last Post: 10-17-2017, 14:06
  3. Question: Variable speed return pump ramp up
    By Splatt44 in forum APEX Fusion
    Replies: 0
    Last Post: 05-05-2017, 08:09
  4. Question: Return pump ramp up
    By mlott132 in forum APEX Fusion
    Replies: 3
    Last Post: 06-14-2015, 07:04
  5. Question: How do I ramp up return pump?
    By buddy68 in forum Apex Programming for Vortech, Tunze, & Other Controllable Pumps
    Replies: 2
    Last Post: 01-11-2015, 18:10

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •