I would like to know the typical interface for automatic/electric garage
door. Is it controlled using 2 relays for power and direction (closing and
opening) or maybe with just one relay (relay on = closing, relay off =
opening)?
Thanks in advance for any input regarding this matter.
I believe most need a single, momentary contact relay -- essentially to
replicate the effect of the regular hardwired pushbutton control.
The temporary closing of the circuit launches the door to go from open
to closed or vice versa.
Quote:
Hi, I would like to know the typical interface for automatic/electric garage door. Is it controlled using 2 relays for power and direction (closing and opening) or maybe with just one relay (relay on = closing, relay off = opening)? Thanks in advance for any input regarding this matter. Rgds, W. Utomo
On Sat, 15 Jul 2006 12:38:21 +0700, "Jo" <utomow2005@yahoo.com> wrote:
Quote:
Hi,I would like to know the typical interface for automatic/electric garagedoor. Is it controlled using 2 relays for power and direction (closing andopening) or maybe with just one relay (relay on = closing, relay off =opening)?Thanks in advance for any input regarding this matter.Rgds,W. Utomo
The only electrical garage door I have fixed was about fifteen years
ago. It used a low voltage motor from a trickle charge battery. No
relays were used, the control was all electronic. My involvement was,
despite it being maintenance free, it all stopped working one day. All
I did was tighten up the battery contacts.
Thanks Stu for the information and sorry for the multiple posts, I got some
problem with my news client.
Rgds,
W. Utomo
Stu Alden <foo@bar.com> wrote in
news:MPG.1f228b7f397bd84d989694@newsgroups.comcast .net:
Quote:
I believe most need a single, momentary contact relay -- essentially to replicate the effect of the regular hardwired pushbutton control. The temporary closing of the circuit launches the door to go from open to closed or vice versa.
An Army Ranger was on vacation in the depths of Louisiana and he wanted a pair of genuine alligator shoes in the worst way, but was very reluctant to pay the high prices the local vendors were asking. After becoming very frustrated with the "no haggle" attitude of one of the shopkeepers, the Ranger shouted, "maybe I'll just go out and get my own alligator so I can get a pair of shoes made at a reasonable price!"
The vendor said, "By all means, be my guest. Maybe you will run into a couple of Marines who were in here earlier saying the same thing."
So the Ranger headed into the bayou that same day and a few hours later came upon two men standing waist deep in the water. He thought, "those must be the two Marines the guy in town was talking about." Just then, the Ranger saw a tremendously long aligator swimming rapidly underwater towards one of the Marines. jordan retro
Just as the aligator was about to attack, the Marine grabbed its neck with both hands and strangled it to death with very little effort. Then both Marines dragged it on shore and flipped it on its back. Laying nearby were several more of the creatures. air jordans
One of the Marines then exclaimed, "Damn, this one doesn't have any shoes either!"
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Automatic Garage Door
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