I’m a mod helper at oracle, and I’ve always heard people talk about the escalators but I haven’t seen one opened up like that before. That is really cool man y’all be safe out there shit looks dangerous
hello friend please help me fix error code E73 on escalator. I don't know if you can help me fix some common errors when maintaining escalators? Thanks I am currently an employee in Vietnam
Hello po, nahulog po kasi yung jewelry kong maliit sa escalator. Pakiramdam ko po ay hindi nagcrack pero pumasok mismo, may pag-asa pa po bang makuha ko iyon? Mahal po kasi iyon eh.
Sir pwd bng magtanong,ano po kaya posibleng sira ng escalator paghumihinto pag pababa,?pero pagpataas nmn po okay nmn po di nmn namamatay,ano po kaya posibleng sir,sana po mabigyan nyo ko ng info,slmt po
check mo din kung may overload relay baka nag trip din. simula ka sa contactor , idiin mo manually ang contactor na pababa kung nagana. pag ok check mo ang contactor kung ok ba ang holding coil nya. pag ok check mo yung mga contacts ng interlocking baka may nag loose. tas yung mga sensor try mo din i bypass kung nagana.
Thank you for this detailed and honestly quite rare video. Looks interesting but also very dangerous to work on escalators. Here in my country engineers (Or technicians or whatever you call them) call escalators "meat grinders". And many lift engineers actually avoid working on escalators simply because they don't want to get injured or killed. I personally like lifts but if I was given an opportunity to work on them I would make sure I won't have to work on escalators too as it's quite common for lift engineers to also work on escalators but also garage doors and automatic sliding doors as well.
I have seen the speed of escalators are always same regardless of number of people are on it. It should slow down if more number of people stand on it. How motor maintains constant speed with varying torque?
There is a reduction gear which designs for the constant speed at maximum load. I have seen as well having overload so many person and the excalator collapse it suddenly slide down and many people got injured in that insident.
Well, as mentioned the motor is reduced. You can see how much they have to turn it to get even the slightest movement of the stairway. On top of using a gear reduction (which really only helps with the torque of the load effecting the RPM of the motor), that motor is a 'brushless DC motor'. Meaning each of its (usually 3) coil phases are attached to a control unit which, even though its called a DC motor, outputs voltages in a increasing and decreasing wave pattern across the coils. Depending on the phase sequence of the controller outputs through the motors coils the motor will turn at a given speed and direction (and can even be held at a certain point in its rotating with the help of encoders) following the magnetic fields created around the coils, the amplitude of those waves (how much energy is used to drive them therefore how strong the magnetic field in the coils is) determines how 'hard' the motor is driven. So you could have a motor that spins fast or slow, but with a low amplitude (peak wave voltage, measured either phase to phase (relative to another coil) or to earth ground, depending on the configuration of the motor/controller/mains-supply system) and youd easily be able to stop the rotation and turn it backwards. Of course it wouldnt like this, the coils would get hot, the current flow (monitored by the controller) would get all crazy (look up 'back EMF motor control' its pretty neat), at best its not polite to stall or back spin a motor against how its being driven (unless its being used as a generator ;) ) and at worse stuff can melt, fry, blow, do the not good thing, etc. However, by monitoring the current and back EMF, the motor controller can detect how much load is being placed on the motor at ant given moment (supposing a controller is equipped to do so, most modern and industrial ones are) and thanks to the gear reduction which smooths out wide swings in motor RPM to stairway speed (since a large change of RPM is needed for a small change in stair speed) the controller can detect the increasing or decreasing load on the stairway (ie, detect the effects on the current curve across the coils) and alter its output drive waves amplitude and phasing to maintain a constant RPM across a varying load! Its kind of a lot of background stuff to be aware of to understand how it works. But thats how it do the dooblydoo. Also, these guys are being incredibly reckless......Definitely NOT OSHA approved maintenance methods. Judging (and yes, I am judging. Because I can. At least Ill admit it to peoples faces. And if anyone has a problem with how they are judged, as long as it is fairly and not based on petty things like genetic expression of eye color or something equally as meaningless and childish, its on them to change the way they do something. Respecting peoples feelings only goes so far, and doesnt go anywhere at all when talking about industrial systems that can easily kill innocent people of the general public who trust that said systems are properly maintained....) by the fact the control panel is labeled in english, and no one in the video is speaking it (on top of the obvious second language hints in the structure of the comment section.....which for the record, I am not judging, at all. Second languages can be difficult to learn much less master, especially if they are not a part of your up bringing. Only people in multi-lingual households and environments from basically birth can speak a different language without accent inflections and such, otherwise there has to be some deep immersion learning to lose a second language accent. Of course that is speaking and not typing, but the point stands, it boils down to word usage and structuring that is natural to a natural given language speaker, and that effect is universal across every person on the planet. Its another really interesting area of study, human linguistics and communication. I highly recommend taking some of that fields research in (as a needless exercise in the joy of learning kind of way) to anyone, really cool stuff! Where was I...oh yeah....), and the 230VAC outlet label, Im going to go out on a limb here and assume this was a salvaged unit, or possible sold off from some building demo or upgrade, purchased overseas and imported to wherever its installed (I have a bad ear for foreign languages...). This obviously is not its original installed location. And, hey, thats fine. These things are entirely modular. Need it shorter? Take a few steps out, shorten the chains, cut down the panels of the lift section....As long as the structural integrity stays intact, that is literally how they are designed to be implemented. But the litigation happy US has OSHA for a reason, and its to keep people safe (so they cant sue the company if they do something stupid....or absolutely can sue the company if the company is negligent. Which includes training employees in the safety of working around machines that can crew you up and not even notice they were doing it). As someone who has worked in those kinds of environments, with machines that HAVE killed people before, this video really grinds my gears....... Still....it is a neat look inside one of those things. The engineering is pretty cool....
I'd love to do it so. I just took this video on one of my projects in Jeddah. I will explain it further the next time I have a project like this. Thanks again I appreciate your comment.
I’m a mod helper at oracle, and I’ve always heard people talk about the escalators but I haven’t seen one opened up like that before. That is really cool man y’all be safe out there shit looks dangerous
Thanks a lot.
God Bless and keep safe always as well.
@@HectorCapendit always my friend 🤝
2:08 ; 3:40 ; 4:40 Clear prop !
The meat grinder is about to start.
Lol
Great job
Thank you so much for sharing to us
Take care always
welcome po...
Ang galing nman tamsak done
Thank you sei...
Thank you n need more videos like this
to learn more about how it works
thank you so much
2:08 Clear prop !
Lol
This is definitely a great vlog to see. Thank you for sharing how the scalator works and get done. More power at Salamat sa yo
New friend po dito
thank you for supporting my vlog... balikan ko po kau...
Thanks for sharing this info
Keepsafe always and god bless
your welcome po...
Reminds me of that one scene in the x files when some creature got sucked into one of these.
that's horrible
@@HectorCapendit It was after mulder or scully can't remember which and they got out and hit the button which killed the creature.
Ang galing mo po kapatid daming wirings oh
Naka set na po yan ng dineliver sa site at sinisetup po ng supplier. Thank you po sa pagsupport...
Thank you po
ang galing niyo naman kapatid
Salamat kapatid
Ang galing niyo Naman mga Kapatid
Salamat kapatid
thank u for sharing
wc po
Galing mo pala mag ayos Ng escalator kapatid
salamat po
ingat dyan sa work mo kapatid
maraming salamat bro
wow, amazing job, hirap nyan bro ahhh!ingat ka lagi /jaysonmhalika
Salamat po ng madami tatay... God Bless you and your family po...
Ang galing Naman tusok done team hamog
salamat po...mlso team hamog
ganan pala yan ang daming wire thanks for sharing sir
thanks bro
Nice never seen this before
thanx lods...then you have an idea incase you fell down on this... hope its not...
Me too dr
hello friend please help me fix error code E73 on escalator. I don't know if you can help me fix some common errors when maintaining escalators? Thanks I am currently an employee in Vietnam
hi...
kindly please tell me what brand of escalator you are working with. I'm sure there is a users manual for troubleshooting and maintenance for it.
Hi Po @tinayamamoto team hamog...AYUDA
salamat po
Hello po, nahulog po kasi yung jewelry kong maliit sa escalator. Pakiramdam ko po ay hindi nagcrack pero pumasok mismo, may pag-asa pa po bang makuha ko iyon? Mahal po kasi iyon eh.
Yes po meron pa po.
Pag nag conduct ng maintenance sa escalator makikita po iyon.
@@HectorCapendit salamat po sa reply! Mga gaano po kaya katagal ang maintenance?
Sa mechanical pla kayo natrabaho..ayos at na pakita nyo rin kung ano meron sa loob ng escalator.
sa electro mechanical po
Sir pwd bng magtanong,ano po kaya posibleng sira ng escalator paghumihinto pag pababa,?pero pagpataas nmn po okay nmn po di nmn namamatay,ano po kaya posibleng sir,sana po mabigyan nyo ko ng info,slmt po
check mo mga sensor nya at ang contactor na pababa baka may diperensya.
check mo din kung may overload relay baka nag trip din. simula ka sa contactor , idiin mo manually ang contactor na pababa kung nagana. pag ok check mo ang contactor kung ok ba ang holding coil nya. pag ok check mo yung mga contacts ng interlocking baka may nag loose. tas yung mga sensor try mo din i bypass kung nagana.
ganyan po pala yan
yes po... salamat po sa pag dalaw...
Thank you for this detailed and honestly quite rare video.
Looks interesting but also very dangerous to work on escalators.
Here in my country engineers (Or technicians or whatever you call them) call escalators "meat grinders".
And many lift engineers actually avoid working on escalators simply because they don't want to get injured or killed.
I personally like lifts but if I was given an opportunity to work on them I would make sure I won't have to work on escalators too as it's quite common for lift engineers to also work on escalators but also garage doors and automatic sliding doors as well.
Yes it is dangerous.
Only professionals can work on it.
@@HectorCapendit You're right, only trained *on escalators* professionals, provided they are actually willing to work on escalators too.
Kaibigan inonahan na kita pasyal kadin sa bahay ko
Salamat kaibigan
Fault code..?
I can't remember I think it was code 3 or 4
I have seen the speed of escalators are always same regardless of number of people are on it.
It should slow down if more number of people stand on it.
How motor maintains constant speed with varying torque?
There is a reduction gear which designs for the constant speed at maximum load. I have seen as well having overload so many person and the excalator collapse it suddenly slide down and many people got injured in that insident.
Well, as mentioned the motor is reduced. You can see how much they have to turn it to get even the slightest movement of the stairway. On top of using a gear reduction (which really only helps with the torque of the load effecting the RPM of the motor), that motor is a 'brushless DC motor'. Meaning each of its (usually 3) coil phases are attached to a control unit which, even though its called a DC motor, outputs voltages in a increasing and decreasing wave pattern across the coils. Depending on the phase sequence of the controller outputs through the motors coils the motor will turn at a given speed and direction (and can even be held at a certain point in its rotating with the help of encoders) following the magnetic fields created around the coils, the amplitude of those waves (how much energy is used to drive them therefore how strong the magnetic field in the coils is) determines how 'hard' the motor is driven. So you could have a motor that spins fast or slow, but with a low amplitude (peak wave voltage, measured either phase to phase (relative to another coil) or to earth ground, depending on the configuration of the motor/controller/mains-supply system) and youd easily be able to stop the rotation and turn it backwards. Of course it wouldnt like this, the coils would get hot, the current flow (monitored by the controller) would get all crazy (look up 'back EMF motor control' its pretty neat), at best its not polite to stall or back spin a motor against how its being driven (unless its being used as a generator ;) ) and at worse stuff can melt, fry, blow, do the not good thing, etc. However, by monitoring the current and back EMF, the motor controller can detect how much load is being placed on the motor at ant given moment (supposing a controller is equipped to do so, most modern and industrial ones are) and thanks to the gear reduction which smooths out wide swings in motor RPM to stairway speed (since a large change of RPM is needed for a small change in stair speed) the controller can detect the increasing or decreasing load on the stairway (ie, detect the effects on the current curve across the coils) and alter its output drive waves amplitude and phasing to maintain a constant RPM across a varying load!
Its kind of a lot of background stuff to be aware of to understand how it works. But thats how it do the dooblydoo.
Also, these guys are being incredibly reckless......Definitely NOT OSHA approved maintenance methods. Judging (and yes, I am judging. Because I can. At least Ill admit it to peoples faces. And if anyone has a problem with how they are judged, as long as it is fairly and not based on petty things like genetic expression of eye color or something equally as meaningless and childish, its on them to change the way they do something. Respecting peoples feelings only goes so far, and doesnt go anywhere at all when talking about industrial systems that can easily kill innocent people of the general public who trust that said systems are properly maintained....) by the fact the control panel is labeled in english, and no one in the video is speaking it (on top of the obvious second language hints in the structure of the comment section.....which for the record, I am not judging, at all. Second languages can be difficult to learn much less master, especially if they are not a part of your up bringing. Only people in multi-lingual households and environments from basically birth can speak a different language without accent inflections and such, otherwise there has to be some deep immersion learning to lose a second language accent. Of course that is speaking and not typing, but the point stands, it boils down to word usage and structuring that is natural to a natural given language speaker, and that effect is universal across every person on the planet. Its another really interesting area of study, human linguistics and communication. I highly recommend taking some of that fields research in (as a needless exercise in the joy of learning kind of way) to anyone, really cool stuff! Where was I...oh yeah....), and the 230VAC outlet label, Im going to go out on a limb here and assume this was a salvaged unit, or possible sold off from some building demo or upgrade, purchased overseas and imported to wherever its installed (I have a bad ear for foreign languages...). This obviously is not its original installed location. And, hey, thats fine. These things are entirely modular. Need it shorter? Take a few steps out, shorten the chains, cut down the panels of the lift section....As long as the structural integrity stays intact, that is literally how they are designed to be implemented. But the litigation happy US has OSHA for a reason, and its to keep people safe (so they cant sue the company if they do something stupid....or absolutely can sue the company if the company is negligent. Which includes training employees in the safety of working around machines that can crew you up and not even notice they were doing it). As someone who has worked in those kinds of environments, with machines that HAVE killed people before, this video really grinds my gears....... Still....it is a neat look inside one of those things. The engineering is pretty cool....
Also if someone explain properly we understand better
Please talk n explain
I'd love to do it so. I just took this video on one of my projects in Jeddah. I will explain it further the next time I have a project like this. Thanks again I appreciate your comment.
like # 2
salamat kau tropa
OSHA lol
hirap din pala imaintenance yan sir
Kaya nga po pag naaberya di agad2 naayos kaya po sa mga mall pag may problema yan matagal bago maayos