Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Soft start question
Soft start question
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 11th January 2017, 09:05 AM   #21
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
Something is wrong.
You should not be reading 130Vac or similar when first connecting and not when it is controlled to OFF.
Disconnect from the mains, disconnect from the transformer.
report the measurements I suggested.
__________________
regards Andrew T.
  Reply With Quote
Old 11th January 2017, 11:01 AM   #22
Liliya is offline Liliya  Norway
diyAudio Member
 
Join Date: Aug 2003
Location: 3370 Vikersund
Thanks Andrew. The measurement you suggested, is it with the Soft Starter standing alone and not connected to transformer/condenserbank?

Eivind S
  Reply With Quote
Old 11th January 2017, 11:04 AM   #23
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
yes, completely disconnected.
We need you to confirm the correct purpose of each input connector. Then we can advise on how to wire it up.
__________________
regards Andrew T.
  Reply With Quote
Old 11th January 2017, 10:00 PM   #24
Liliya is offline Liliya  Norway
diyAudio Member
 
Join Date: Aug 2003
Location: 3370 Vikersund
The unit I tested yesterday has stopped working. No click, no red led light when the momentary switch was activated.
Luckily I have a newer version very simular with a three legs led instead of a two legs red.


No mains power connected:
Between the two N terminals: O.L Between the two L terminals 0 ohm.

Mains power ON but momentary switch OFF:

Between the two 220 V in: 230V AC Between the two 220V out: 230v AC

The red led light up.


Momentary switch ON:

Between the two 220V in: 230V AC Between the two 220V out:230V AC.

The green led lights up. I can both hear/ feel the relay click with my finger tip.

The momentary switch OFF:

The red led lights up. A new click from the output relay was heard/felt

230v AC on both 220V in and out.

I will wait until Andrews comments to connect this unit to the V3 power unit.

Eivind S

Last edited by Liliya; 11th January 2017 at 10:12 PM.
  Reply With Quote
Old 11th January 2017, 10:29 PM   #25
TonyTecson is offline TonyTecson  Philippines
diyAudio Moderator
 
TonyTecson's Avatar
 
Join Date: May 2003
Location: Palatiw, Pasig City
Soft start question
since that circuit is isolated from mains, you can test it for function....

mine is the forum soft starter ckt....

surely the traffo provided will have its primary dc resistance in the near thousand ohms.
can be on all the time. as long as the IEC mains connectors are plugged in....

didn't that come with documentation? i will not buy anything
without proper documentation so buyers beware....
__________________
planet10 needs your help: Let's help Ruth and Dave...http://www.diyaudio.com/forums/plane...ml#post5010547[B
  Reply With Quote
Old 11th January 2017, 10:44 PM   #26
TonyTecson is offline TonyTecson  Philippines
diyAudio Moderator
 
TonyTecson's Avatar
 
Join Date: May 2003
Location: Palatiw, Pasig City
Soft start question
i think all information is in your post #1....
you should be able to use this board......

in your ebay board one relay shorts out a bank of NTC's
while another relay opens the circuit in case of thermal overload,
this is the reason for two relays...2 heat sensors one for each channel
sink....

so one relay is operated normally open while the other is normally closed

found this in the net.....the difference is there is a delay from the time you push the switch, about a second, to the closing of the normally open relay....almost instantaneous.....

Click the image to open in full size.

the unit is wired this way.....

Click the image to open in full size.
__________________
planet10 needs your help: Let's help Ruth and Dave...http://www.diyaudio.com/forums/plane...ml#post5010547[B
  Reply With Quote
Old 12th January 2017, 05:41 AM   #27
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
What was the resistance between Live and Live, when all was disconnected?

AJT,
the earlier posts had virtually agreed that the first relay was to allow remote low voltage power ON. And the second relay was for the soft start to bypass the added resistance.
__________________
regards Andrew T.
  Reply With Quote
Old 12th January 2017, 06:28 AM   #28
Liliya is offline Liliya  Norway
diyAudio Member
 
Join Date: Aug 2003
Location: 3370 Vikersund
What was the resistance between Live and Live, when all was disconnected?

0 ohm.

Eivind S
  Reply With Quote
Old 12th January 2017, 07:20 AM   #29
TonyTecson is offline TonyTecson  Philippines
diyAudio Moderator
 
TonyTecson's Avatar
 
Join Date: May 2003
Location: Palatiw, Pasig City
Soft start question
Liliya, can you post picture of the copper side of the board please?
__________________
planet10 needs your help: Let's help Ruth and Dave...http://www.diyaudio.com/forums/plane...ml#post5010547[B
  Reply With Quote
Old 12th January 2017, 07:30 AM   #30
TonyTecson is offline TonyTecson  Philippines
diyAudio Moderator
 
TonyTecson's Avatar
 
Join Date: May 2003
Location: Palatiw, Pasig City
Soft start question
Quote:
Originally Posted by Mooly View Post
I see a 555 timer on the sheet.

So you apply mains and nothing happens. You then short the contacts and the unit operates...

Then what ? Do have to remove the mains input to reset back to off or does the momentary switch (yes that's what that symbol seems to show) turn the unit off ?

I would also as a safety precaution make sure that the momentary contacts are isolated from the mains. Is that a mains transformer in the middle powering it all ?
with isolation transformer used, the momentary, normally open switch is in no danger of causing shocks......i have some....
Attached Images
File Type: jpg vandal proof switch.jpg (92.3 KB, 104 views)
__________________
planet10 needs your help: Let's help Ruth and Dave...http://www.diyaudio.com/forums/plane...ml#post5010547[B
  Reply With Quote

Reply


Soft start questionHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Threads
Thread Thread Starter Forum Replies Last Post
soft start and delay start - help please cl1238 Tubes / Valves 6 5th January 2016 08:46 AM
Soft Start Help munty76 Parts 0 14th February 2013 02:00 PM
Question Regarding Soft-Start J.R.Freeman Power Supplies 22 30th September 2010 01:43 AM
Soft start question a.wayne Solid State 39 8th November 2009 05:34 AM
Soft start & Soft Switch circuit: can anybody help? m.parigi Solid State 95 22nd August 2005 03:32 PM


New To Site? Need Help?

All times are GMT. The time now is 12:25 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio
Wiki