Microprocessor-controlled hoist system

Details Microprocessor-controlled hoist system Microprocessor-controlled hoist system

1983-05-24

1987-01-13

Ruggiero, Joseph

Boots, shoes, and leggings

212149, 254276, 254362, 318468, G06F 1520, B66D 148

Patent

active

046369627

ABSTRACT:
Load position limits and incremental lowering of a load are controlled by a microprocessor forming an interface between an operator's control station and the hoist. Other hoist status conditions such as underspeed and overspeed of the hoist motor are detected by the microprocessor based upon hoist speed during the position limit setting cycle. Still other hoist status data such a motor overheating, number of power-up cycles, number of under and overspeed shut-downs, number of power failures, etc. are input to the microprocessor and all such data as up-dated are entered into a non-volatile memory which, when extracted, permits maintenance scheduling.

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