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.
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