Abstract: A control switch for operating a crane. The control switch includes a first interface designed to transfer signals between the control switch and a control unit of the crane. In order to combine, in particular, the robustness and operating reliability of the control switch desired in industrial use with increased functional scope in a cost-effective way, the control switch is provided with a second interface designed to transfer signals between a mobile terminal and the control switch in order to add functions of the mobile terminal to the functional scope of the control switch.

Abstract: A load-handling crane, and a system and method are provided for operating the load-handling crane having a hoist movable by means of a drive of the crane and a handling device for operating the crane. The handling device is fastened to a liftable and lowerable suspension element of the hoist and having a sensor system for determining an orientation of the suspension element, or of a part fastened to the suspension element, or of the handling device, or of a load-handling attachment. The system further has an operating element that cooperates with the sensor system such that, when the operating element is actuated, a control command for activating the drive is able to be triggered, resulting in the hoist being movable by means of the drive in a direction of travel, with the direction of travel being dependent on an orientation determined by means of the sensor system.

Abstract: A control switch for operating a crane. The control switch includes a first interface designed to transfer signals between the control switch and a control unit of the crane. In order to combine, in particular, the robustness and operating reliability of the control switch desired in industrial use with increased functional scope in a cost-effective way, the control switch is provided with a second interface designed to transfer signals between a mobile terminal and the control switch in order to add functions of the mobile terminal to the functional scope of the control switch.

Abstract: A cable winch, comprising an electric drive motor, a transmission, and a rotary indicator, where the electric drive motor is coupled to the transmission and the rotary indicator is associated with the electric drive motor and/or the transmission in such a way that the rotary indicator provides a signal for determining the rotational speed of the drive motor and/or of the transmission, with the rotary indicator being arranged between the electric drive motor and the transmission.

Abstract: A cable winch, comprising an electric drive motor, a transmission, and a rotary indicator, where the electric drive motor is coupled to the transmission and the rotary indicator is associated with the electric drive motor and/or the transmission in such a way that the rotary indicator provides a signal for determining the rotational speed of the drive motor and/or of the transmission, with the rotary indicator being arranged between the electric drive motor and the transmission.

Abstract: A control method for a balancing lifting gear which includes a lifting motor that can be actuated by a controller and uses a control handle with a force sensor to lift and lower a load-supporting device. In a “Balance” operating mode, the load-supporting device, with or without a picked-up load, is raised or lowered by the controller in response to a force applied by an operator. In order to ensure disturbance-free handling of a load when removing or attaching a load, a “Pick-up” operating mode or an “Assemble” operating mode is selected, in which the load-supporting device is moved independently without the influence of the force of the operator by the controller in the lifting or lowering direction in dependence upon the signals determined by the force sensor. A balancing lifting gear which operates in accordance with the aforementioned control method is also disclosed.

Abstract: The invention relates to a circuit arrangement comprising a hoist controller (12) of a hoist (10), a control pendant (12) having an emergency stop switch (2), and a control line (3) which electrically connects the hoist controller (12) to the control pendant (12) and has a control voltage applied thereto. In order to provide a circuit arrangement for monitoring an emergency stop switch of a hoist having a pendant switch, which circuit arrangement can be used to reliably detect a short circuit, it is proposed to assign a controller (1) to the emergency stop switch (2), which controller superimposes a cyclical pulse on the control voltage, and to design the hoist controller (12) in such a manner that said hoist controller monitors the cyclical pulse and switches the hoist (10) to a safe state in the absence of the cyclical pulse.

Abstract: A control method for a balancing lifting gear which includes a lifting motor that can be actuated by a controller and uses a control handle with a force sensor to lift and lower a load-supporting device. In a “Balance” operating mode, the load-supporting device, with or without a picked-up load, is raised or lowered by the controller in response to a force applied by an operator. In order to ensure disturbance-free handling of a load when removing or attaching a load, a “Pick-up” operating mode or an “Assemble” operating mode is selected, in which the load-supporting device is moved independently without the influence of the force of the operator by the controller in the lifting or lowering direction in dependence upon the signals determined by the force sensor. A balancing lifting gear which operates in accordance with the aforementioned control method is also disclosed.

Abstract: The invention relates to a circuit arrangement comprising a hoist controller (12) of a hoist (10), a control pendant (12) having an emergency stop switch (2), and a control line (3) which electrically connects the hoist controller (12) to the control pendant (12) and has a control voltage applied thereto. In order to provide a circuit arrangement for monitoring an emergency stop switch of a hoist having a pendant switch, which circuit arrangement can be used to reliably detect a short circuit, it is proposed to assign a controller (1) to the emergency stop switch (2), which controller superimposes a cyclical pulse on the control voltage, and to design the hoist controller (12) in such a manner that said hoist controller monitors the cyclical pulse and switches the hoist (10) to a safe state in the absence of the cyclical pulse.

Abstract: The invention relates to a suspended control device (20) which is suspended by means of a control line (1, 24) connected to a unit to be controlled (21). Said suspended control device is especially a control switch or a suspended push-button switch for controlling hoisting equipment, the control line (1, 24) comprising electrical lines (2) for transmitting control signals, and a traction relief element (22) which is supported at the top, on the unit (21), and used to absorb weight and tractive forces. The aim of the invention is to provide a suspended control device (20) whereby the length of the control line (1, 24) can be easily changed. To this end, a storage element for receiving and releasing a defined length of the electrical lines (2) is provided behind the region wherein the traction relief element (22) is supported, seen in the direction of the unit (21) from the suspended control device (20).

Abstract: A method for setting the parameters of electronic motor controls of hoisting equipment with a control mechanism (10) for the hoisting equipment with at least one hoisting switch (5), one lowering switch (6) and one emergency shutoff switch (4) and with a display (8) in which the following steps are preformed:(i) starting of the parameter setup mode,(ii) automatic, sequential run-through and display of all parameters,(iii) binary selection of a displayed parameter, if so desired,(iv) changing of the setting of the selected parameter, if so desired,(v) saving of the changes,(vi) termination of the parameter setup mode.

Abstract: A method for monitoring a chain pulley block and a chain pulley block apparatus with an electric actuator motor (2) that is connected at the drive side to a transmission (7) across a sliding clutch (14). In order to achieve a safe operation of the chain pulley block, the speed of the transmission (7) is determined via a sensor (18), the determined speed of the transmission (7) is compared in a control device (19) to the operating speed of the actuator motor (2) as determined from rated duty of the actuator motor (2) and if a deviation is found between the speed of the transmission (7) and the operating speed, allowing for tolerances and any transmission ratio of the transmission (7), the actuator motor (2) is switched off.

Abstract: An interface circuit for actuating an electrical consumer, especially a pole-changing rotary-current induction motor, with a first contact element assigned to a signal line carrying an alternating voltage signal to generate at least two different control signals. A circuit arrangement is provided for actuating an electric motor, especially a pole-changing rotary-current induction motor, with a control switch element having an aforementioned interface circuit, which is connected via a signal line to a motor control of the electric motor.

Abstract: The invention relates to a suspended control device (20) which is suspended by means of a control line (1, 24) connected to a unit to be controlled (21). Said suspended control device is especially a control switch or a suspended push-button switch for controlling hoisting equipment, the control line (1, 24) comprising electrical lines (2) for transmitting control signals, and a traction relief element (22) which is supported at the top, on the unit (21), and used to absorb weight and tractive forces. The aim of the invention is to provide a suspended control device (20) whereby the length of the control line (1, 24) can be easily changed. To this end, a storage element for receiving and releasing a defined length of the electrical lines (2) is provided behind the region wherein the traction relief element (22) is supported, seen in the direction of the unit (21) from the suspended control device (20).

Abstract: The invention concerns a drive arrangement of a lifting gear and/or a traveling gear, with a pole-reversible rotary-current motor with windings for at least two different actuating speeds, with a pole switching element connecting the rotary-current motor to a voltage supply for changing between the actuating speeds of the rotary-current motor. In order to create a drive arrangement of a lifting gear and/or a traveling gear with a rotary-current motor, whose switching behavior is optimized in relation to the actuation of the rotary-current motor, it is proposed that a power switching element (3) be hooked up in front of the pole switching element (5), and it can be separated from the voltage supply via the power switching element (3) for the pole switching process of the rotary-current motor (2).

Abstract: An operating device for the manual actuation of hoisting equipment, with at least one spring-loaded switch element (2) for each direction of movement of the lifting device arranged in a switch housing (1), wherein each switch element (2) includes a pressure activation mechanism (5), a first electrical micro-key button (4), and at least one additional control or switch element, especially another electrical micro-key button (6), and the pressure activation mechanism (5) is arranged in front of the micro-key button (4) and the additional control or switch element and these can be activated in succession by means of such structure.

Abstract: A method for setting the parameters of electronic motor controls of hoisting equipment with a control mechanism (10) for the hoisting equipment with at least one hoisting switch (5), one lowering switch (6) and one emergency shutoff switch (4) and with a display (8) in which the following steps are preformed: (i) starting of the parameter setup mode, (ii) automatic, sequential run-through and display of all parameters, (iii) binary selection of a displayed parameter, if so desired, (iv) changing of the setting of the selected parameter, if so desired, (v) saving of the changes, (vi) termination of the parameter setup mode.

Abstract: A method for monitoring a chain pulley block and a chain pulley block apparatus with an electric actuator motor (2) that is connected at the drive side to a transmission (7) across a sliding clutch (14). In order to achieve a safe operation of the chain pulley block, the speed of the transmission (7) is determined via a sensor (18), the determined speed of the transmission (7) is compared in a control device (19) to the operating speed of the actuator motor (2) as determined from rated duty of the actuator motor (2) and if a deviation is found between the speed of the transmission (7) and the operating speed, allowing for tolerances and any transmission ratio of the transmission (7), the actuator motor (2) is switched off.

Abstract: An operating device for the manual actuation of hoisting equipment, with at least one spring-loaded switch element (2) for each direction of movement of the lifting device arranged in a switch housing (1), wherein each switch element (2) includes a pressure activation mechanism (5), a first electrical micro-key button (4), and at least one additional control or switch element, especially another electrical micro-key button (6), and the pressure activation mechanism (5) is arranged in front of the micro-key button (4) and the additional control or switch element and these can be activated in succession by means of such structure.