FIELD: mechanical engineering: materials handling facilities.
SUBSTANCE: invention can be used in control and safety systems of boom-type load-lifting cranes. Proposed system contains main controller to outputs of which input of emergency signaling module, first control input of travel motion interlock module, dangerous voltage protection unit and maximum height pickup of load grip whose output is connected to information input of main controller. System contains boom head controller and pickup of load grip lowering mechanism, and travel motion interlock module is provided with second and third control inputs. Boom head controller is connected by two-way communication line with dangerous voltage protection unit and is connected with main controller by two-way or wireless data exchange channel. Connected to second and third control inputs of travel motion interlock module are, respectively, maximum height pickup of load grip and pickup of load grip lowering mechanism.
EFFECT: improved safety under abnormal conditions owing to preservation of function of limiting of hook maximum lifting height at interlocking of functional of disconnection of crane travel motion by main controller.
8 cl, 4 dwg
