Time delay relay
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Cargo Master
Joined: Jan 2005
Posts: 2,902
Likes: 2
From: Pasadena, Maryland
Time delay relay
Im looking for a automotive time delay relay for my stereo. I bought a Alpine double din head unit and it doesn't like "waiting to start". Any body have the same problem?
Senior User
Joined: Mar 2008
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I dealt with Altronix products a bunch in my former career. I believe this one will do what you're looking for: Altronix Products: 6062 - Multi-function Timer 12/24VDC.. Probably in the $20-30 range.
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Cargo Master
Joined: Jan 2005
Posts: 2,902
Likes: 2
From: Pasadena, Maryland
I dealt with Altronix products a bunch in my former career. I believe this one will do what you're looking for: Altronix Products: 6062 - Multi-function Timer 12/24VDC.. Probably in the $20-30 range.
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Cargo Master
Joined: Jan 2005
Posts: 2,902
Likes: 2
From: Pasadena, Maryland
Firmware. Unfortunately it has to be sent back to Alpine every time.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Could you link to one from Radio Shack or somewhere? Sounds easy enough but there are lots of capacitors and I don't know enough about them to understand what I'm looking for. I'd love to have one for the air compressor on my wife's truck (more amps than the radio).
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Cargo Master
Joined: Jan 2005
Posts: 2,902
Likes: 2
From: Pasadena, Maryland
I don't need it to stay on longer just to delay the start of the unit. When I turn the key on for the glow plugs to radio starts to boot. When I start the engine the power is interrupted and that corrupts the head unit. I loose my fancy GPS and British sounding chick that calls me 'big daddy'.....I'm so lonely now.....
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Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
A thought... as silly as it may sound:
What if there was a relay coil on the GP side of the GP relay?
I'll explain it a little better: N/C contacts between the radio power to the radio. GP side of the GPR to one leg of the radio relay coil, the other leg to ground. The radio wouldn't see power until the key is on and the GPR is off.
One other thought - voltage-sensing relay: Anything less than 12 volts shuts off the power to the radio. Either plan would prevent sub-par voltage from reaching the apparently sensitive electronics.
Last thought: Low voltage isn't a highly-likely culprit - noisy voltage is. If you have damaged contacts on your GPR or starter relay, this could certainly cause issues on sensitive electronics.
What if there was a relay coil on the GP side of the GP relay?
I'll explain it a little better: N/C contacts between the radio power to the radio. GP side of the GPR to one leg of the radio relay coil, the other leg to ground. The radio wouldn't see power until the key is on and the GPR is off.
One other thought - voltage-sensing relay: Anything less than 12 volts shuts off the power to the radio. Either plan would prevent sub-par voltage from reaching the apparently sensitive electronics.
Last thought: Low voltage isn't a highly-likely culprit - noisy voltage is. If you have damaged contacts on your GPR or starter relay, this could certainly cause issues on sensitive electronics.
Thread Starter
|
Cargo Master
Joined: Jan 2005
Posts: 2,902
Likes: 2
From: Pasadena, Maryland
A thought... as silly as it may sound:
What if there was a relay coil on the GP side of the GP relay?
I'll explain it a little better: N/C contacts between the radio power to the radio. GP side of the GPR to one leg of the radio relay coil, the other leg to ground. The radio wouldn't see power until the key is on and the GPR is off.
One other thought - voltage-sensing relay: Anything less than 12 volts shuts off the power to the radio. Either plan would prevent sub-par voltage from reaching the apparently sensitive electronics.
Last thought: Low voltage isn't a highly-likely culprit - noisy voltage is. If you have damaged contacts on your GPR or starter relay, this could certainly cause issues on sensitive electronics.
What if there was a relay coil on the GP side of the GP relay?
I'll explain it a little better: N/C contacts between the radio power to the radio. GP side of the GPR to one leg of the radio relay coil, the other leg to ground. The radio wouldn't see power until the key is on and the GPR is off.
One other thought - voltage-sensing relay: Anything less than 12 volts shuts off the power to the radio. Either plan would prevent sub-par voltage from reaching the apparently sensitive electronics.
Last thought: Low voltage isn't a highly-likely culprit - noisy voltage is. If you have damaged contacts on your GPR or starter relay, this could certainly cause issues on sensitive electronics.
I like that GPR idea......Trying to wrap my head around how to wire that up....
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
*EDIT* Single Pole Double Throw Relay - SPDT
Without a diagram:
Coil + to GPR on the GP side (big stud).
Coil - to ground.
That's to control the contacts.
Contact COM (Common) to the key power.
Contact NC (normally closed) to the radio power in.
That's it.
Key ON GP ON, no radio.
Key OFF, no radio.
Key ON, GP OFF, radio power.
Radio comes right on with a dead-cold truck, bad GP circuit.
Without a diagram:
Coil + to GPR on the GP side (big stud).
Coil - to ground.
That's to control the contacts.
Contact COM (Common) to the key power.
Contact NC (normally closed) to the radio power in.
That's it.
Key ON GP ON, no radio.
Key OFF, no radio.
Key ON, GP OFF, radio power.
Radio comes right on with a dead-cold truck, bad GP circuit.
Thread Starter
|
Cargo Master
Joined: Jan 2005
Posts: 2,902
Likes: 2
From: Pasadena, Maryland
Without a diagram:
Coil + to GPR on the GP side (big stud).
Coil - to ground.
That's to control the contacts.
Contact COM (Common) to the key power.
Contact NC (normally closed) to the radio power in.
That's it.
Key ON GP ON, no radio.
Key OFF, no radio.
Key ON, GP OFF, radio power.
Radio comes right on with a dead-cold truck, bad GP circuit.
Coil + to GPR on the GP side (big stud).
Coil - to ground.
That's to control the contacts.
Contact COM (Common) to the key power.
Contact NC (normally closed) to the radio power in.
That's it.
Key ON GP ON, no radio.
Key OFF, no radio.
Key ON, GP OFF, radio power.
Radio comes right on with a dead-cold truck, bad GP circuit.
Gotcha! Thank you!
Fleet Mechanic
Joined: Nov 2009
Posts: 1,381
Likes: 193
From: Cambs, England
I posted this link Think Harder » How To Keep Your Radio On When You Start Your Car as a solution in another thread about the same problem, I need to find the time to make it work as I have a Pioneer double din unit that has just about booted up when the WTS lamp has gone out, then it's wait again once the key has been cycled, it hasn't caused any damage just a PITA!
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
The way the relay is configured, it operates in reverse of what you're saying there. The active GPR prevents the power from reaching the radio.