Garage Door Safety Beam
Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Shops, Barns, Varmints, and Trucks
Forum Description: anything you want to talk about except politics
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=204991
Printed Date: 22 Jan 2025 at 1:46am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Garage Door Safety Beam
Posted By: Tbone95
Subject: Garage Door Safety Beam
Date Posted: 18 Jan 2025 at 9:54am
| How do you semi-permanently defeat these? Is it simply a switch inside? Is just 2 wires each…Are the sensors typically interchangeable between brands? Got one Genie (not working right) and one Stanley working that I could use for troubleshooting. Need to be frugal for now!😎 |
Replies:
Posted By: sparky
Date Posted: 18 Jan 2025 at 10:53am
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Mount them together nose to nose. ------------- It's the color tractor my grandpa had! |
Posted By: Tbone95
Date Posted: 18 Jan 2025 at 11:31am
Yeah, in the process of doing that I ended up finding the broken wire!  Thanks
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Posted By: SteveM C/IL
Date Posted: 20 Jan 2025 at 11:58am
| Mine are up above a couple inches apart. Small children and pets beware.... |
Posted By: Tbone95
Date Posted: 20 Jan 2025 at 12:45pm
The question really comes down to, if you had a bad one, can you fool the unit into thinking everything is fine. |
SteveM C/IL wrote:Posted By: Harvey/pa
Date Posted: 20 Jan 2025 at 1:15pm
| mounted mine above the door on the header pointed at each other, has worked for 30 years...Harvey |
Posted By: steve(ill)
Date Posted: 20 Jan 2025 at 4:05pm
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Tbone, i dont thing you can " wire around it".... everyone just tapes them looking at each other...... If one goes BAD, i think you are screwed.. ------------- Like them all, but love the "B"s. |
Posted By: Gary
Date Posted: 20 Jan 2025 at 9:58pm
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I found this on the internet, SO IT MUST BE TRUE ! G Use Reflective Materials Reflective materials can be employed to bounce the infrared beam back to the sensors, creating the illusion of an uninterrupted path. For garage door sensor bypass. place reflective tape or similar materials on surfaces near the sensors to achieve this effect. |
Posted By: steve(ill)
Date Posted: 20 Jan 2025 at 10:03pm
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that does NOT eliminate the sensor... that was his question.. reflexting the beam is useless... WHY ? ------------- Like them all, but love the "B"s. |
Posted By: Tbone95
Date Posted: 21 Jan 2025 at 8:28am
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Posted By: Les Kerf
Date Posted: 21 Jan 2025 at 5:27pm
I would have to study a schematic but there has to be a way to wire around it. It is simply sending a go/no go voltage.
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Posted By: jaybmiller
Date Posted: 21 Jan 2025 at 5:35pm
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um, it might not be a steady beam..... I've seen them where the beam is actually pulsed ( high frequency ) so someone with a flashlight can't 'fake' the beam to open the garage door. ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: steve(ill)
Date Posted: 21 Jan 2025 at 5:45pm
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its not an ON- OFF switch... If the door is OPENING and you stand in front of the beam, nothing happens... If the door is CLOSED and you stand in front of the beam, nothing happens.. If the door is MOVING DOWN and you stand in front of the beam, the door reverses direction.... There is LOGIC involved... not just OPEN- CLOSE ( on - off). ------------- Like them all, but love the "B"s. |
Posted By: Les Kerf
Date Posted: 21 Jan 2025 at 7:31pm
Yes, I worked with photo eyes for years in the sawmill business, there are many types of photo eyes and not all of them use visible light, various frequencies, etc. The 'logic' is dealt with at the controller, the photo eye just says 'blocked/not blocked'. Lacking the schematic and the ladder diagram it is difficult to know just where to tap into the system to defeat it. Maybe not a good idea anyway
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