You are not registered yet. Please click here to register!


 
 
plc storereviewsdownloads
This board is for PLC Related Q&A ONLY. Please DON'T use it for advertising, etc.
 
Try our online PLC Simulator- FREE.  Click here now to try it.

---------->>>>>Get FREE PLC Programming Tips

New Here? Please read this important info!!!


Go Back   PLCS.net - Interactive Q & A > PLCS.net - Interactive Q & A > LIVE PLC Questions And Answers

PLC training tools sale

Reply
 
Thread Tools Display Modes
Old November 2nd, 2004, 08:48 PM   #1
godfrey
Member
United States

godfrey is offline
 
godfrey's Avatar
 
Join Date: Apr 2002
Location: Charlotte, NC
Posts: 411
DC supplies for loop power

With control panel design being one of my duties, I can't help but snoop in other peoples cabinets when I am on site commissioning mine. I have noticed that some cabinets use linear power supplies for loop power. I prefer switching supplies. I haven't had problems. What's your preference?
__________________
See it, Do it, Teach it.
  Reply With Quote
Old November 2nd, 2004, 08:58 PM   #2
elevmike
Member
United States

elevmike is offline
 
elevmike's Avatar
 
Join Date: Feb 2004
Location: Detroit, MI
Posts: 4,012
Well if you can get away with it....why not??
  Reply With Quote
Old November 2nd, 2004, 09:19 PM   #3
Doug_Adam
Member
Australia

Doug_Adam is offline
 
Doug_Adam's Avatar
 
Join Date: Sep 2002
Location: Perth
Posts: 949
Usually I use switching supplies as well. Generally just the 24V control voltage.

I did have one application using some linear position sensors that seemed to have a problem with excessive noise on the switching power supply. In this case I used linear power supplies, one per unit.
This was a one off fix for a unique problem with a poorly designed (EMF) wise board and a cheapo switching power supply.

Same line, different board 100m away with a better quality power supply (Siemens), same linear position sensor, no problems.

Doug
  Reply With Quote
Reply
Jump to Live PLC Question and Answer Forum

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Topics
Thread Thread Starter Forum Replies Last Post
Small and Cheap 24V DC Power Supply Matthias von Zorn LIVE PLC Questions And Answers 7 October 5th, 2004 10:26 PM
DC Power Distribution TimothyMoulder LIVE PLC Questions And Answers 18 December 8th, 2003 09:39 AM
Power Supplies: Linear vs. Switching Dongleboy LIVE PLC Questions And Answers 5 June 11th, 2003 08:02 PM
DC Power Supplies Rookie_Engineer LIVE PLC Questions And Answers 5 April 29th, 2003 04:29 PM
Dc Drive (penta Kb Power PERSPOLIS LIVE PLC Questions And Answers 2 December 1st, 2002 10:44 PM


All times are GMT -5. The time now is 10:20 PM.


.