Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > Troubleshooting Game Consoles & Other Weird Devices
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 02-10-2022, 04:47 AM   #1
bios321
New Member
 
Join Date: Sep 2017
City & State: warsow
My Country: czech republic
I'm a: Knowledge Seeker
Posts: 16
Default Strange relay Programmable outlet

Hi all
The culprit ELEWAY BF24-1A-H-S 24VDC relay.
Item a programmable outlet Brennenstuhl dt v2. It just won't turn on and off when it should. The reset works fine but I do not hear the relay clicking on/off. I have two of these outlets, one works fine the other one not even close. I think it is the relay but I cannot find it to buy. Also I cannot find a similar one. I cannot find a datasheet for this relay. So I am stuck. Any help, any ideas will be greatly appreciated.
bios321 is offline   Reply With Quote
Old 02-10-2022, 05:35 AM   #2
diif
Badcaps Veteran
 
Join Date: Feb 2014
City & State: Midlands
My Country: England
I'm a: Professional Tech
Posts: 5,992
Default Re: Strange relay Programmable outlet

I think it might be be BE24 not BF24, then lots show up in search.
diif is offline   Reply With Quote
Old 02-10-2022, 06:06 AM   #3
bios321
New Member
 
Join Date: Sep 2017
City & State: warsow
My Country: czech republic
I'm a: Knowledge Seeker
Posts: 16
Default Re: Strange relay Programmable outlet

Definitely it is an ELEWAY BF24-1A-H-S 24VDC. I have also found a similar problem on the internet.
http://ugyotaku.web.fc2.com/yahoo2/PT50DW/PT50DW.htm
If you'll scroll down you will get to a picture of it.
bios321 is offline   Reply With Quote
Old 02-10-2022, 08:11 AM   #4
stj
Great Sage 齊天大聖
 
stj's Avatar
 
Join Date: Dec 2009
City & State: Europe
My Country: some shithole run by Israeli agents
I'm a: Professional Tech
Posts: 26,409
Default Re: Strange relay Programmable outlet

these stupid automation things usually fail in the psu area.
if it uses a capacitive dropper and the cap is failing it will supply enough current for the electronics but not the relay coil.
stj is offline   Reply With Quote
Old 02-13-2022, 01:19 PM   #5
momaka
master hoarder
 
momaka's Avatar
 
Join Date: May 2008
City & State: VA (NoVA)
My Country: U.S.A.
Line Voltage: 120 VAC, 60 Hz
I'm a: Hobbyist Tech
Posts: 10,862
Default Re: Strange relay Programmable outlet

Quote:
Originally Posted by bios321 View Post
Definitely it is an ELEWAY BF24-1A-H-S 24VDC.
Maybe that's a cheap knock-off clone of a BE24 relay?
In any case, just take out the relay and measure it, then compare to the size of the BE24. If coil voltage as well as contactor current and voltage ratings match, just use the BE24.

Quote:
Originally Posted by stj View Post
these stupid automation things usually fail in the psu area.
if it uses a capacitive dropper and the cap is failing it will supply enough current for the electronics but not the relay coil.
And looking at the pictures on the link that O/P provided... yes, it does look like a capacitative dropper circuit. Does 0.47 uF sound inline for such purpose? At least it is an X2-class rated cap and not just a regular PP/PE.

On that note, the only programmable plug-in timers I have are the simple ones with a synchronous motor and you put little red and green tabs on a turning round wheel to set the On-Off times. Not very accurate and looses timing if power goes off for an extended time... but at least it doesn't fail.
momaka is offline   Reply With Quote
Old 02-13-2022, 01:38 PM   #6
redwire
Badcaps Veteran
 
Join Date: Dec 2010
City & State: Alberta
My Country: Canada
Posts: 2,461
Default Re: Strange relay Programmable outlet

OP what makes you think it's the relay?
It's usually the dropper-capacitor going low value, the small electrolytic going bad or just crappy soldering inside. The zeners can go bad with age.
The 24V relay coil should measure around 1,400ohms and needs at least 18V to pull in. It looks like a typical high capacity cube relay. Like Songle SRD-24VDC-SL-C or Omron G5LE etc. but 16A is harder to find.

I have a Geya astronomical timer, it's supposed to turn on and off at sunrise/sunset but the manual absolutely terrible and the firmware seems so bad I gave up on getting it to work.
It uses a 48VDC relay coil and I drew a schematic of the power system, they're all the same - resistor+capacitive dropper, 3.3V zener for MCU power and NiMh battery to save settings.
redwire is offline   Reply With Quote
Reply

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



Badcaps.net Technical Forums 2003 - 2022
Powered by vBulletin ®
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 08:58 PM.
Did you find this forum helpful?