Otis MCS413

[@mrmattandmrchay]

I'm looking at all my Favourite Videos tonight. I miss you videos!

[@qeelevators2960]

2019?

[@anneborden8498]

Why don’t you post stuff anymore

[@mrmattandmrchay]

Such large machines! (1970s?) You can see the double-wrap sheave also, top quality video (as usual!) Matt

[@qeelevators2960]

10 years ago

[@figamarsa]

Bellissimo vide, ben realizzato ET ben esplicato. Avete anche vido dei vecchi ascensori, magari quelli con le portine di legno e con la porta principale che si apre con la chiave?

[@liftoman_777]

Отис с гидрой, эт чё-то новенькое :)

[@shawncampbell1792]

I'm guessing these are DC geared SCR controlled motors. I noticed that Otis puts the isolation transformer inside of the controller which I think is a really bad idea because if the transformer fails, it could destroy the entire controller. I have seen new Otis controllers with the transformer mounted separately. The blue boxes appear to be the DC ripple filters.

[@Germudofil]

Yes, these are DC geared SCR controlled motors. We still have similar at E411 elevators. Transformer is present - no any problems fo 25 years.

[@Germudofil]

Video of still working Elevonics 401 33 years old/ Whey were presented to Moscow State University at 1987 by Ronald Reygan during his visit to Moscow/ kzbin.info/www/bejne/mZmocnmrbreYaMU