A laser positioning system is used in association with a crane within a manufacturing facility. The laser positioning system includes a laser source that is mounted on an immovable or non-moving wall or surface in the manufacturing facility. The laser source on the wall or surface ensures that the laser beam does not skew out of square relative to the movement of the crane to various locations in the facility.

A laser positioning system is used in association with a crane within a manufacturing facility. The laser positioning system includes a laser source that is mounted on an immovable or non-moving wall or surface in the manufacturing facility. The laser source on the wall or surface ensures that the laser beam does not skew out of square relative to the movement of the crane to various locations in the facility.

A gantry drive system includes: a first motor configured to drive a driving object along a first axis; a second motor configured to drive the driving object along a second axis parallel with the first axis; and a motor control system configured to control the first and second motors. The motor control system includes a mode switch that performs a switching between a first control mode in which a position of the driving object on each of the first and second axes is individually controlled while reducing an inter-axis positional deviation between the first and second axes, and a second control mode in which a rotational state of the driving object is controlled while controlling a position of the driving object, based on detected positions of the driving object on the first and second axes.

A gantry drive system includes: a first motor configured to drive a driving object along a first axis; a second motor configured to drive the driving object along a second axis parallel with the first axis; and a motor control system configured to control the first and second motors. The motor control system includes a mode switch that performs a switching between a first control mode in which a position of the driving object on each of the first and second axes is individually controlled while reducing an inter-axis positional deviation between the first and second axes, and a second control mode in which a rotational state of the driving object is controlled while controlling a position of the driving object, based on detected positions of the driving object on the first and second axes.

There is provided a control system including: a first transmission unit configured to transmit a first command directing an operation of a crane; a second transmission unit configured to transmit a second command directing an operation of the crane; and a control device including a first reception unit configured to accept the first command and a second reception unit configured to accept the second command, in which the control device is configured to operate the crane in a case in which the first command and the second command coincide with each other.

There is provided a control system including: a first transmission unit configured to transmit a first command directing an operation of a crane; a second transmission unit configured to transmit a second command directing an operation of the crane; and a control device including a first reception unit configured to accept the first command and a second reception unit configured to accept the second command, in which the control device is configured to operate the crane in a case in which the first command and the second command coincide with each other.

The invention relates to a method for operating conveyor means and to a control unit (10) for conveyor means, in particular hoisting gear, cranes, gantry cranes, container cranes or the like, the conveyor means comprising a drive unit (11) and a control unit for controlling the drive unit, a carriage of the conveyor means being moved along a rail (12) of the conveyor means by means of the drive unit, the control unit being controlled by means of a control device (13) of the control unit, a rotary encoder (16) of the control unit being connected to a shaft (18) of the drive unit or of a measuring wheel of the carriage and registering a rotation of the shaft, a rotation angle signal and/or a rotational speed signal being transmitted to the control device by means of an encoder device (17) of the rotary encoder in order to determine an assumed position of the carriage on the rail. At least one position signal is detected by means of a sensor apparatus (14) of a safety device of the control unit disposed on the carriage and the rail, a real position of the carriage on the rail being determined using the position signal by means of a safety apparatus (25) of the safety device, the assumed position being corrected according to the real position by means of the safety device.

The invention relates to a method for operating conveyor means and to a control unit (10) for conveyor means, in particular hoisting gear, cranes, gantry cranes, container cranes or the like, the conveyor means comprising a drive unit (11) and a control unit for controlling the drive unit, a carriage of the conveyor means being moved along a rail (12) of the conveyor means by means of the drive unit, the control unit being controlled by means of a control device (13) of the control unit, a rotary encoder (16) of the control unit being connected to a shaft (18) of the drive unit or of a measuring wheel of the carriage and registering a rotation of the shaft, a rotation angle signal and/or a rotational speed signal being transmitted to the control device by means of an encoder device (17) of the rotary encoder in order to determine an assumed position of the carriage on the rail. At least one position signal is detected by means of a sensor apparatus (14) of a safety device of the control unit disposed on the carriage and the rail, a real position of the carriage on the rail being determined using the position signal by means of a safety apparatus (25) of the safety device, the assumed position being corrected according to the real position by means of the safety device.

The present disclosure relates to an apparatus and to a method for controlling a crane slewing gear. The apparatus comprises a hydraulic motor for driving the slewing gear and for braking the slewing gear from a rotational movement. The slewing gear is kept stationary via a holding brake. A hydraulic brake circuit for controlling the holding brake, a load sensing device for measuring a load instantaneously taken up by the crane, and an orientation sensing device for measuring an instantaneous orientation of the crane and/or of at least one crane component are furthermore provided. In accordance with the disclosure, a hydraulic limitation circuit is provided by means of which a hydraulic pressure applied to the motor can be limited to a specific limit value. A control unit is furthermore provided that determines a maximum permitted torque and/or a parameter derived therefrom for a current slewing gear movement.

The present disclosure relates to an apparatus and to a method for controlling a crane slewing gear. The apparatus comprises a hydraulic motor for driving the slewing gear and for braking the slewing gear from a rotational movement. The slewing gear is kept stationary via a holding brake. A hydraulic brake circuit for controlling the holding brake, a load sensing device for measuring a load instantaneously taken up by the crane, and an orientation sensing device for measuring an instantaneous orientation of the crane and/or of at least one crane component are furthermore provided. In accordance with the disclosure, a hydraulic limitation circuit is provided by means of which a hydraulic pressure applied to the motor can be limited to a specific limit value. A control unit is furthermore provided that determines a maximum permitted torque and/or a parameter derived therefrom for a current slewing gear movement.