Photoelectric Sensor Wiring and Setup
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- Опубліковано 6 сер 2024
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⌚Timestamps:
00:00 - Intro
00:18 - Mounting
01:17 - Wiring
02:42 - 1) Through-Beam
03:22 - 2) Retroreflective
03:51 - 3) Diffused
04:43 - troubleshooting
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In this video, we will be talking about the wiring and setup of the 24-volt DC Through-Beam, Retroreflective, and Diffused photoelectric sensors. These are the three basic types of photoelectric sensors and they come in many different shapes and sizes.
Some of the larger photoelectric sensors have holes in the sensor body that can be used to mount the sensor and some of the smaller photoelectric sensors require some type of bracket to hold them in place.
You can buy premade brackets to mount these sensors and these brackets can be adjustable or non-adjustable.
A belt conveyor transporting an empty box will be used to explain how to set up each sensor. On this conveyor, the sensor will trigger the Motor Starter to start or stop the motor. We will also talk about troubleshooting these photoelectric sensors.
1) Through-Beam sensors have two separate devices, one is called the emitter and the other is called the receiver. The emitter is what sends the light out and the receiver is what catches the light.
Both of these sensor devices will need to be connected to 24-volt DC power. The receiver will also be connected to the 24-volt DC Motor Starter coil.
To be safe, make sure the power is turned off before connecting any wires.
To connect the emitter of the Through-Beam sensor to 24-volt DC power, connect the brown wire to 24-volt DC positive, the blue wire to 24-volt DC negative, and the black wire to the 24-volt DC Motor Starter coil.
We will use a premade adjustable bracket to make mounting and aiming of the sensors easier.
With the Through-Beam sensor, use a straight edge to line up and mount the emitter and receiver, so they are straight across the conveyor belt from each other.
Adjust the sensor if needed and tighten everything down to lock the sensor in place.
To check alignment, block and unblock the sensor with your hand to make sure the sensor indicator light turns on and off.
2) Retroreflective sensor needs a reflector to work. Use a straight edge to line up and mount the sensor and the reflector, so they are straight across the conveyor belt from each other.
To check alignment, block and unblock the sensor with your hand to make sure the sensor indicator light turns on and off.
3) To mount the Diffused photoelectric sensor put the empty box on the conveyor where you want it to stop. Mount the sensor at the front edge of the box, adjust and tighten everything down.
Diffused sensors have a sensitivity adjustment screw. If the sensitivity is set too high the sensor might stay on all the time. If the sensitivity is set to low it might not turn on.
To set the sensitivity for this belt conveyor, put the box in front of the sensor in the middle of the conveyor belt. Adjust the sensitivity until the sensor indicator light just turns on with the box in this position.
To test out these sensors we will place an empty box on the conveyor belt and start the conveyor. If the photoelectric sensor is set up correctly the box will travel to the sensor, and then shut down the conveyor motor when it blocks the sensor.
If the conveyor does not start, the sensor might need to be adjusted or it might be dirty. Clean the lens of the sensor and check the alignment by blocking the sensor and watching the sensor indicator light to see if it turns off and on.
If the conveyor still does not start, look at the Motor Starter and block the sensor again. If the sensor is working correctly, you should be able to hear the Motor Starter contacts close.
If the motor only runs when the sensor is blocked, it is probably in dark-on mode. Flip the mode switch to light-on mode to correct this issue.
If the conveyor motor stays running, the sensor might be misaligned and in dark-on mode, the sensor or the sensor cable might be bad and will need to be replaced.
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#RealPars #Photoelectric #Sensor
Absolutely loud and clear. Especially that I've been working on these sensors for some time now without fully understanding the configurations. Thank you so much realpars, kindly consider setting up a hands on training center in Zambia.
Great to hear that! Happy learning, Kasonde. We appreciate your positive feedback.
The best automation videos on UA-cam!
Thanks a million, Malcolm!
Very well explained.
Easy and simple.
Good 👍
Thanks a lot, Noman!
I really love the informative videos of REALPARS, I wish if you would make a video about "How to connect outputs (motors) to a PLC C1212 AC/DC/RLY", in the same way of explaining this informative video.
💫Rise and shine REALPARS team! 💫😎
Hey Gailani!
Thanks for your comment and your suggestion. I will pass this on to our course developers!
Thanks for sharing and happy learning!
Perfect, thanks for ur all videos.
You're very welcome, Manoj!
Perfect videos. I am a newbie, but I learn alot form this video. Thanks RealPars!
Glad to hear it!
Very well done, thank you! This helped a lot!
You're welcome!
Very clear explanation
Glad you think so, Roberto!
Clear, like pure water
The best explanation video for automat
Thanks a million, Boudissa!
This is very informative. Thank you
Glad you enjoyed it!
Nice...!!! Great presentation..
Thank you, Carlos!
Interesting topic, thank you for sharing!
Glad it was helpful, Mohammed!
Love you sir and thanks to clear all doubts
Our pleasure, Majid!
Very clear and interesting explanation, thank you Sir very much and please make more videos like this in automation field.
You're very welcome, Anas! We appreciate your support.
Great video tutorial... 👍👍👍
Thank you!
Fantastic explanation . go-ahead 👍
Thank you, Karthik!
What a great channel. Congrats
Glad you enjoy it! Thank you very much for your support.
Very explanation thank you so much
Glad it was helpful!
This is great stuff 🔥
Thank you!
Thank you very much.
You are welcome!
Very good explication
Thank you, Luciano!
Awesome video 🔥 🔥 🔥
Thank you, Amin!
Really awesome sir ❤️
Thank you, Maniya!
Superb 🔥
Thank you, Prabakar!
Thanks
Really nice
Thank you!
Excellent
Thank you so much!
Thank you :)
You're more than welcome, Wilberth!
well done.
Thank you very much!
Thank you for the helpful video! I'm working on a process improvement project and was wondering if it would be possible to use these sensors to connect to an Andon light (instead of a conveyor motor) to turn on when a package is recognized by the sensor?
Yes, that can be done. The main consideration is that you need to match the output signal from the sensor to the requirements of the Andon light. This includes both voltage and power requirements. It is possible that you will need to provide a solid state interposing relay to switch power to the light stack with the low-level output from the sensor wired the relay coil.
Excellent Real Pars Explanation! In the case of using a PLC to control the motor of the conveyor belt, what type of power wiring would be convenient to implement for the photoelectric sensors, sinking or sourcing?
According to the application requirements either pnp or npn
@@syedmaaz6542 Thanks!
Boom I love this
Glad to hear that!
This was a really simple and well-constructed video. Can the diffused sensor be set up, in the opposite way, so that it turns the motor on when an object is detected in front of the sensor and turns off when it has moved far enough so that it is no longer detected? Im trying to fill a small holding conveyor up with pouches evenly.
Hello Bruno,
Thank you for your question. Yes, it can, depending on the one you purchase for your application. Some come with four wires. As we mentioned in our video, two of the wires are for power, and if some of these sensors come in 4 wires, two for power and one wire for normally open N.O. or normally closed N.C. depending on your application on how you want it to sense, for example with the object present or not present. And some sensors have a selection switch you decide for it to work N.O. or N.C. but not both. Here is a link to an international company with all the types of sensors you can think of for your application, with data sheets and learning information.
www.bannerengineering.com/in/en/products/sensors/photoelectric-sensors.html?pageNum=Infinity&#all
Happy learning!
Great ❤😍
Thank you, Nisal!
Hi! I found this channel very informative and useful!
I am R&D Chemist and there is a real need to me to be able to design and assemble an experimental equipment based on PLC. I have some experience in designing equipment based on relay logic, but I would like to work with analouge signal too.
What program do you recommend for such a beginners? I saw your video made 6 years ago. Is it still actual now or there is a new software?
@@realpars thank you very much!
The current revision of software used to program Siemens PLCs is TIA Portal (STEP7) v17. Anything that we have demonstrated in STEP7 can be done in TIA Portal in much the same manner. All of the concepts we show in our videos with regard to sensors is still valid and the programming techniques are still valid. The only thing that has changed is the look and feel of the programming software (to be more modern and user friendly!).
I suggest the S7-1200 starter kit for new programmers and those who want a low-cost system to use for development and testing:
marketplace.realpars.com/products/s7-1200-ktp400-basic-starter-kit-6av6651-7ka02-3aa4?_pos=5&_sid=e40114d93&_ss=r
I love your voice
I have a question can you explain the fuction of the black wire better said what happens in the black wire when the sensors are blocked i work with high performance garage doors and they use some level of monitoring on the photoeyes sensors Thanks very informative your videos!
Thanks for your feedback, Jake! I will happily pass this on to our course developers, as a topic suggestion for possible future video courses.
I love this for making it clear to me but my question is the sensor is mounted at the middle of the conveyor how can the conveyor take the product to the sensor when the work of the sensor is the start the conveyor
Sensor placement is important and requires the engineer to understand what the sensor is being used for. A sensor can be used for counting, in which case the sensor should be placed where objects will need to pass and clear the sensor during normal operation. Sensors used to control a conveyor (on/off) are typically put in the middle of the conveyor so that they can both sense when objects are flowing normally and when a jam (collection of objects upstream of the sensor) occurs. Starting a conveyor at the start is normally done by an operator, and then sensors can be used to start/stop conveyor traffic to maximize throughput.
So much respect for you sir. i am an instrument engineer in a pharma sector. i eagerly wanted to know about led light panel installation, its realation between lux,watt and room area . please make a video on this. As i am in middle of my given project .
Hey!
Thanks for your comment and your suggestion. I will pass this on to our course developers!
Thanks for sharing and happy learning!
Can you tell us how to read electrical drawing and findout the points plzz...
Hi Ajikar,
Thanks for your message!
This would make for a great topic suggestion for future video courses, I will happily pass this on to our course developers.
Thanks for sharing and happy learning!
I'd like to learn about ultrasonic, radar and linear position sensors as well.
Thanks for the topic suggestion, I will definitely go ahead and forward this to our creator team. Happy learning!
Real pars, there are sensors that have 4 wire cables. Brown, blue, black and white, is the black wire usually the normally open switch? Or does it depend on the application?
Typically, with wires in that combination, brown and blue supply power. Brown is positive (high potential) and blue is common (low potential). Black is typically the signal wire in a 3-wire configuration, but in a 4-wire configuration, you need to consult the drawing for the device.
Hi. quick question. If there is a remote starter switch, simple on/off, can the black wire be introduced there instead of back at the starter coil? TIA!
You want to make sure any start command, local, automatic (as with the photoelectric sensor), or remote switches power to the starter/contactor. So yes, you could design a circuit where the black wire is energized by the remote switch or the photoelectric sensor to pull in the contactor. Just make sure all devices are being powered from the same 24VDC circuit to avoid voltage problems.
Hi! I have a retroreflective sensor, which is starting a conveyor. Does it matter if the sensor is
perpendicular or parallel with the conveyor?
Hello Zoltan Farkas,
Thank you for your question. It depends on the application and device you use. Not sure where in the world you are, but here is a link that might be useful to help you make your decision. www.ia.omron.com/support/guide/43/introduction.html
Hope this helps!
Hi, it's possible to extend the sensor wires? Imagine you have a proximity sensor (Diffused) and a part counter connected, the sensor has 1 meter cable and the counter is positionated 2 meters away from the sensor. How can we deal with this wires lenght problem?
For DC wiring, extending the wires is usually not a problem, unless you extend them very long distances. Very often, local junction boxes are used at the device to provide convenient access for maintenance and replacement, with wiring to the control system provided from the junction box. This wiring run can be as long as it needs to be (provided it is not so long as to degrade the signal due to wire resistance).
👏
Sir,
I'd like to learn about backlight supression sensors. Would you mind if you help me please?
Hey!
Thanks for your comment and your suggestion. I will pass this on to our course developers!
Thanks for sharing and happy learning!
Please show as how to wire a safety curtain safety relay
Hey!
Thanks for your comment and your suggestion. I will pass this on to our course developers!
Thanks for sharing and happy learning!
Hi,What program do you use to make these educational videos?
Hi there,
Thanks for your comment!
I am actually not sure about this, our animations are created by our Graphic and Animation department.
Can you please make a video On REHEAT STRETCHING MOLD MACHINE
Hi Syed!
Thanks for your comment and your suggestion. I will pass this on to our course developers!
Thanks for sharing and happy learning!
Why my diffused sensor needs to be an angle to detect my oats?
Thank you for your question!
The material type and size in front of the diffused sensor can affect its performance. You may need to adjust the sensor and its sensitivity potentiometer to get it to work correctly. Here is a helpful link for your learning: www.keyence.com/products/
Happy learning!
Maximum distance cover
Please show me diagram of each sensor
Thanks for your feedback and suggestion, Yin! I will happily go ahead and pass this on to our team.
Wonderfull! Terriffic!!!!!
Thank you, Julio!
Tk