FIELD: transport.
SUBSTANCE: invention relates to control devices used in protection and control systems of hoisting machines. In its first version, the device contains mechanical converter of hoisting machine equipment or mechanism movement into angular movement of self-powered optical encoder shaft. The device permits to program the range of controlled movements. In the second version of this device executed using controller, its electronic circuit contains power or electromagnetic relays which are controlled from microcontroller and providing timely speed lowering or interlock of hoisting machine drive. In both device versions, additional redundancy of encoders may be used with common or separate independent power supplies, as well as controlled movement range limits can be programmed and stored.
EFFECT: invention provides higher reliability and safety of hoisting device operation.
21 cl, 1 dwg
