roscoe1129 Posted May 27, 2008 Report Posted May 27, 2008 Connecting Additional Devices to the Remote Turn On Wire Using a 30 amp SPDT relay, connect terminal #87 to constant 12 volts positive with a fuse rated to the sum of the additional accessories you've added and the components you need to turn on. (If you have two fans rated at 5 amps each and a neon light rated at 10 amps, you would use a 20 amp fuse plus 200 ma for each amplifier and processor.) Connect terminal #85 to ground, terminal #86 to the remote turn on wire from the head unit, and terminal #30 to each accessory with an appropriate fuse. A fuse (not shown) could also be used between the output of the relay (#30) and the remote turn on wire of the amplifiers and/or processors for extra precaution. Some people need a sympathetic pat... on the head...with my hammer Scientia est Vox "In Nomine Patris et Filii et Spiritus Sancti" DONT BE AFRAID TO USE THE SEARCH BUTTON!!! SMD SUPER BUYER/SELLER
E a r t h Posted May 27, 2008 Report Posted May 27, 2008 Interesting, usually the high current input is the 30 with output being 87 when the control circuit 85 & 86 are energized. Output 87a would be the path for current when the control circuit 85 & 86 is not energized.
Clif Posted May 27, 2008 Report Posted May 27, 2008 i wouldnt think it would matter if your just using it for acc. but people should get used to 30 being the input and the 87 and 87a for the outputs. 03 Trailblazer EXT LT In Dash Rear Flip Down Polk Audio Font & Rear Stage Hifonics Zeus 4 Chan Amp Hifonics Brutus Mono Amp 12" Rockford Fosgate Power HX2 T-Line tuned to 45hz 18"BTL T-line @31Hz (9 weeks pregnant)
snafu Posted July 8, 2008 Report Posted July 8, 2008 Before using a relay, realize that: 1. Most power amps and processors require between 10 and 20 mA of current to power the turn-on circuit 2. A "bosch" type relay requires between 110 and 120 mA of current to power the coil 3. Most source units are capable of between 250 ma and 500 ma or current on their turn-on leads (this will be specified in the owners' manual) Finally, connecting a relay as shown to the turn-on output of a source unit could actually damage it. I would strongly recommend installing a diode across the coil of the relay (in reverse bias - stripe side to turn on lead and non-stripe side to ground). When power to the coil of a relay is turned OFF, the electromagnetic field within the coil collapses. This can in some cases result in a very large voltage spike traveling up the turn-on output of the source unit, which could damage it. The diode will shunt this spike to ground, thereby making the addition of the relay harmless. Tony Candela - SMD Sales & Marketing Email me at [email protected] to learn about becoming an SMD Partner!
ISO Posted July 8, 2008 Report Posted July 8, 2008 Damn snafu when I think I have all the basics cemented in my pea sized brain, you throw me through a loop. LOL Isobaric - Refers to the practice of coupling two drivers together to make them act as one. "Giving up doesn't always mean you are weak; sometimes it means that you are strong enough to let go." Insanity: doing the same thing over and over again and expecting different results. The Destruction of a person builds character.
Bass4Lyfe Posted July 8, 2008 Report Posted July 8, 2008 great info here - thanks guys ~Matthew 1998 Toyota Camry XLE V6 3L (1) ScyTek Astra 4000RS-2W-1 2-Way Remote Start Alarm with Shock and Proximity (1) 20% Tint All Around (Gately Audio) (1) 250 Amperage HO Alternator (1) Big 3 Done In 1/0 (2) Kinetik HC2400 Power Cell (1) Alpine IVA-D106 Receiver (1) Peripheral Video Bypass Device (4) Alpine SPS-17C2 Speakers (1) Alpine KCE-422i iPod Control Interface (4) Sheets Dynamat Extreme; for speakers (1) 10 Square Feet Hushmat (Trunk & Rear Deck) (4) DC Audio Level 4 15" D2 Subwoofer w/ Level 5 Coils (1) Wall Built By David, Tuned to 32 Hz (1) Rockford Fosgate T40001bd Amplifier (1) Stinger 1/0 Wiring (2 runs of + 2 runs of -) (1) Stinger Volt Meter
emperorjj1 Posted July 16, 2008 Report Posted July 16, 2008 Before using a relay, realize that: 1. Most power amps and processors require between 10 and 20 mA of current to power the turn-on circuit 2. A "bosch" type relay requires between 110 and 120 mA of current to power the coil 3. Most source units are capable of between 250 ma and 500 ma or current on their turn-on leads (this will be specified in the owners' manual) Finally, connecting a relay as shown to the turn-on output of a source unit could actually damage it. I would strongly recommend installing a diode across the coil of the relay (in reverse bias - stripe side to turn on lead and non-stripe side to ground). When power to the coil of a relay is turned OFF, the electromagnetic field within the coil collapses. This can in some cases result in a very large voltage spike traveling up the turn-on output of the source unit, which could damage it. The diode will shunt this spike to ground, thereby making the addition of the relay harmless. meaning if all your really powering is multiple amps and processors a relay isnt necessary J. JMy CardomainFINISHED COBALT SS/SC DUAL ALTERNATOR PICS theres no such thing as too expensive when it comes to upgrades like that, because imo if you are gonna spend to upgrade then do it correctly rather then be a cheap ass ricer
deezydee Posted November 14, 2008 Report Posted November 14, 2008 Before using a relay, realize that: 1. Most power amps and processors require between 10 and 20 mA of current to power the turn-on circuit 2. A "bosch" type relay requires between 110 and 120 mA of current to power the coil 3. Most source units are capable of between 250 ma and 500 ma or current on their turn-on leads (this will be specified in the owners' manual) Finally, connecting a relay as shown to the turn-on output of a source unit could actually damage it. I would strongly recommend installing a diode across the coil of the relay (in reverse bias - stripe side to turn on lead and non-stripe side to ground). When power to the coil of a relay is turned OFF, the electromagnetic field within the coil collapses. This can in some cases result in a very large voltage spike traveling up the turn-on output of the source unit, which could damage it. The diode will shunt this spike to ground, thereby making the addition of the relay harmless. Could this relay then cause a slight click that comes through my speakers on start up?, i presently have a relay connected. I have had both Boston amps bench tested and given the thumbs up, but all tests still point to the amps being the cause of this noise. extremely frustrated
Gotloud555 Posted November 30, 2008 Report Posted November 30, 2008 Sorry to ask this weird wack question but what does the relay look like? I don't think i have seen it before or maybe i did.
Stephen Posted November 30, 2008 Report Posted November 30, 2008 Before using a relay, realize that: 1. Most power amps and processors require between 10 and 20 mA of current to power the turn-on circuit 2. A "bosch" type relay requires between 110 and 120 mA of current to power the coil 3. Most source units are capable of between 250 ma and 500 ma or current on their turn-on leads (this will be specified in the owners' manual) Finally, connecting a relay as shown to the turn-on output of a source unit could actually damage it. I would strongly recommend installing a diode across the coil of the relay (in reverse bias - stripe side to turn on lead and non-stripe side to ground). When power to the coil of a relay is turned OFF, the electromagnetic field within the coil collapses. This can in some cases result in a very large voltage spike traveling up the turn-on output of the source unit, which could damage it. The diode will shunt this spike to ground, thereby making the addition of the relay harmless. agreed on the diode ive burnt up a few transistors by not having one in place Sorry to ask this weird wack question but what does the relay look like? I don't think i have seen it before or maybe i did. you can cook bacon shirtless if you're not a pussy...lol not hatin, but am i wrong here it looks as if the amp is not grounded its hooked directly to the battery. it that the way it should be. DC POWER
Recommended Posts
Archived
This topic is now archived and is closed to further replies.