merry christmas to you behringer users!

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mike c

mike c

Audioholic Warlord
for you guys who don't wish to turn on and off your amps/equipment each time you want to use them

http://home.bendcable.com/werstlein/

i don't know if this will work with high wattage use ... but I've already ordered 10 15amp relays to try myself

jeffsg4mac, majorloser ... check it out!


p.s. of course, we're gonna use either the switched outlet (12v adapter) or the 12v triggers on our receivers instead of the PC hard drive 12v power
 
mike c

mike c

Audioholic Warlord
remember, I bought 10 relays. here's how it's gonna line up ...

one relay from the switched outlet ... switching ON a power strip.
that power strip will have 7 12v adapters switching 7 other relays for the 7 amps!
 
j_garcia

j_garcia

Audioholic Jedi
Don't these amps have the ability to pass the 12v trigger from one to the next? My MA500s just daisy chain together - turn one on, it relays the signal to the next.
 
mike c

mike c

Audioholic Warlord
the A500 doesn't even have a 12v trigger of its own. I'm glad I found that MAME thread ... saved me a lot of money ... if I didn't find that thread, I would have ended up with Parasound or Rotel.
 
majorloser

majorloser

Moderator
mike c said:
remember, I bought 10 relays. here's how it's gonna line up ...

one relay from the switched outlet ... switching ON a power strip.
that power strip will have 7 12v adapters switching 7 other relays for the 7 amps!
Click to expand...
Unfortunately I'm using a pre/pro that only has the 12V trigger output. It doesn't have 120V switched outlets. I need to sense the 12V signal then close a 120V contactor. I've thought about using a brick PLC to start controlling thing in the room. This would solve all my problems.
 
mike c

mike c

Audioholic Warlord
does the 12v trigger cable have two wires or one?


if two:
can't you use a 1/8" connector on the pre-pro end ... cut the other end of the connector to stick onto the relay? since 12v triggers are usually a continuous signal.
 
majorloser

majorloser

Moderator
mike c said:
does the 12v trigger cable have two wires or one?


if two:
can't you use a 1/8" connector on the pre-pro end ... cut the other end of the connector to stick onto the relay? since 12v triggers are usually a continuous signal.
Click to expand...
The 12V output is in the mA range. Not enough power to close a relay coil :(
 
mike c

mike c

Audioholic Warlord
but the adaptors I'm using now are just 55mA (I know 12v triggers are usually 15mA) and I'm not even using 12v ... I'm using 11.3v 55mA. it seems to cross the threshold enough to short the relay
 
majorloser

majorloser

Moderator
The only thing I'd suggest to anybody who uses the relay like they show in your link, is using a relay socket instead of soldering directly to the relay. The sockets have screw terminals. The coils do burn out and the relay need replacing. http://www.grainger.com/Grainger/wwg/itemDetailsRender.shtml?ItemId=1611601362

In your case Mike, use the crimp-on connectors.

I'll have to look closer at my B&K. Pulling too much power from the 12V trigger on a pre/pro will usually blow a internal fuse.
 
mike c

mike c

Audioholic Warlord
so these socket relays are generic? (meaning the female holes for the terminals are the same distance across different relays?)

I wish I knew these relays burn out, I'd have bought more.
 
majorloser

majorloser

Moderator
Yes, the layouts are fairly standard. There are many different types or relays that use different pin configurations. See this link for examples:
http://www.grainger.com/Grainger/wwg/productIndex.shtml?operator=searchProductBySubCat&segment=Electrical&family=Relays&subcat=Relay+Sockets
Some use pins and others use "blades". The important thing is the pin count. Relays are like switched in that they are of different configuration/usages (DPDT, SPDT, 3PDT, etc.). The more poles, The more circuitsthe more pins required. But the sockets are the same for each type of relay configuration.

The other nice thing about using relay sockets is that they can be mounted using DIN rails. Makes for a neat installation.
 
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