Yes the yellow pulley supports the entire weight of the elevator cab and the counterweight, known as the driven sheave. This is a geared traction machine whereby the sheave attaches to the gear box from the hoist motor. The differential in weight between the elevator cab and counterweight, is how much weight the machine has to hoist or lower. The hoist motors appear to be DC powered by an MG (motor-generator) set which changes incoming AC to DC.
@mazyad1978
13 жыл бұрын
Very old controllers but it is in a good shape. This machine drive I think it is a Spec90 now the new replacement for this kind of drives is OVF30 with LCMSS and RCBII boards it is one of the most complicates controller in OTIS for AC motors while the machine there is 18ATF
@titony54
15 жыл бұрын
xD, I work For Otis france, And it's a pleasure to see MCS 311. A good but old technology I can see The Big Remotes Station!Is it a 18 ATF Machine? I have More Gamma's than MCS 311:(
@ModelBoatMayhemPhotos
13 жыл бұрын
Those yellow pulley wheels, do they take the entire weight of the car and counter weights?
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