摘要:
A method of machine control can include providing at least a system master signal, selectively synchronizing at least sub-system master signal to the system master signal based on the value of the system master signal, and carrying out at least one operation based on the value of the other master signal. For example, a machine controller may provide a system virtual master signal and synchronize one or more module virtual master signals to the system virtual master based on the system virtual master count value. One or more components of the module may operate based on the count value of the module virtual master signal. The use of an asynchronous control method may advantageously increase the flexibility of the machine. Because the operation of the components of the machine may depend on respective virtual master signals, a machine using asynchronous control methods may advantageously continue operating one component or module in the event of a fault involving other components. Additionally, component operation can be redefined while other components of the machine continue to run.
摘要:
A method of machine control can include providing at least a system master signal, selectively synchronizing at least sub-system master signal to the system master signal based on the value of the system master signal, and carrying out at least one operation based on the value of the other master signal. For example, a machine controller may provide a system virtual master signal and synchronize one or more module virtual master signals to the system virtual master based on the system virtual master count value. One or more components of the module may operate based on the count value of the module virtual master signal. The use of an asynchronous control method may advantageously increase the flexibility of the machine. Because the operation of the components of the machine may depend on respective virtual master signals, a machine using asynchronous control methods may advantageously continue operating one component or module in the event of a fault involving other components. Additionally, component operation can be redefined while other components of the machine continue to run.
摘要:
A controller structure for more than two drive units coupled mechanically to a movable element includes a position measuring device for determining an actual position of the movable element and a position controller for calculating a setpoint speed from a setpoint position and the actual position, the position measuring device and the position controller jointly serving all drive units. Each drive unit, however, has a speed controller of its own. The drive units are configured either as master or as slave, individual drive units also being able to assume both functions. A torque-master-slave controller ensures a compensation of the torques between the drive units.
摘要:
A servo controller for synchronously controlling a master driving source for driving a driving shaft and a slave driving source for driving a driven shaft, having a position control section that performs a position control based on a positional deviation which is a difference between a position command value given to the slave driving source and a feedback value detected from the slave driving source, an operational section that calculates a synchronization error which is a difference of the positional deviation between the master driving source and the slave driving source, and a correction data calculating section that calculates first correction data for correcting the positional deviation of the slave driving source.
摘要:
An electrical drive system for the synchronized adjustment of rotatable axles or linearly movable functional parts in particular for printing machines, in terms of their position, speed or acceleration. Drive units are controlled using computer assistance and are connected to one or more functional parts for their adjustment. A plurality of drive networks, which each have a plurality of the drive units as network nodes, are allocated to some or a group of the functional parts. Inside at least one of the drive networks, its nodes or drive units are arranged in accordance with the master/slave principle and are respectively connected to one another in a ring structure through communication channels and/or a communication system. At least one node of a drive network is coupled in a ring structure with one node of another drive network, likewise in accordance with the master/slave principle, through inter-communication channels and/or an inter-communication system or network.
摘要:
A numerical controller which, after once stopping a slave axis during superposing control, can easily resume the superposing control. In the superposing control, a motion amount for a master axis and a motion amount for the slave axis are added to a workpiece coordinate value of the master axis and a workpiece coordinate value of the slave axis, respectively, to update their present position data (I2, II2). These motion amounts are supplied also to servo processing (I3, II3) for the master axis and the slave axis, where an amount obtained by superposing a motion amount nullzIm for the master axis ZIm on a motion amount nullzIIs for the slave axis ZIIs is supplied to the servo processing for the slave axis ZIIs. When a slave axis motion stop command is issued, the motion of the slave axis is stopped and a motion amount nullzIm for the master axis ZIm is subtracted from the workpiece coordinate value of the slave axis ZIIs. This makes it possible to retain the positional relationship between the master axis and the slave axis, and hence easily resume the superposing control when the motion of the slave axis is restarted.
摘要:
In a method for operating machines (138) with a plurality of shafts (102, 110, 111), in which the shafts (102, 110, 111) are each driven, synchronized with one another, by individual drive mechanisms (103) belonging to them, in accordance with an electronic, chronological guide shaft function, which corresponds to an instantaneous position of a guide shaft L, and the motions of a plurality of derived shafts (102, 110, 111) are derived from the guide shaft L in accordance with conversion functions that correspond to respective predetermined mechanical conversions (106, 107, 108, 109) with respect to the guide shaft L, it is proposed, in order to improve the method in such a way thatnullparticularly when there is a large number of shafts to be regulatednullsimple startup at comparatively little expense for equipment is permitted, that all the shafts (102) of at least one group (117) of shafts, which correspond to one another in terms of the conversion (106, 107, 108, 109), obey an electronic, chronological following guide shaft function, which corresponds to an instantaneous position of a following guide shaft F and is formed by linking the applicable conversion function and the guide shaft function.
摘要:
A synchronous controller capable of easily controlling a slave axis in synchronism with a master axis performing a composite motion of a plurality of axes. Motion commands for two axes X, Y constituting the master axis are subject to interpolation/distribution and acceleration/deceleration processing, to determine distribution motion amounts, and the determined amounts of motion of the two axes X, Y constituting the master axis for every interpolation period are combined to determine an amount of motion M of the master axis, from which is determined an amount of motion of the slave axis for every interpolation/distribution period. The determined amounts of motion of the X, Y and slave axes are output to respective servo control means, thus driving the respective axes. In case the master axis is constituted by a means driven by external X and Y axes, amounts of motion of the external X and Y axes for every predetermined period are detected by detectors, and used, instead of the distribution motion amount, to determine an amount of motion M of the master axis from which an amount of motion of the slave axis is determined to drive the slave axis.
摘要:
A drive control commanding unit is provided which, when plural such units constitute a system, can configure the system as a synchronous system which can conduct a synchronous operation free from synchronism deviation. The drive control commanding unit has an operation clock generator 9 which generates an operation clock signal, an interruption generator 11 which outputs an interruption signal at every cycle of the operation clock signal. There also is a station number setting unit 13 through which a station number indicative whether the drive control commanding unit is operated as a master or as a slave is set; a synchronous timing signal transmitter 15 which operates only when the unit is used as the master, and which outputs a synchronous timing signal on the basis of the operation clock signal; a synchronous controller 18 which operates only when the unit is used as a slave, and which outputs a synchronous operation starting signal on the basis of an error state signal indicative of a ready state of a synchronous operation, and a synchronous timing signal received from the master drive control commanding unit. A synchronous checker 22 judges whether the operation of a slave drive control commanding unit is synchronized with that of the master drive control commanding unit or not, and an error signal generator 24 outputs an error signal based on the error state signal.
摘要:
A method and apparatus is disclosed for texturizing magnetic storage disks. The disk texturizing apparatus utilizes a combination of servomotors for rotating the disk and oscillating the disk towards and away from a texturizing media. The servomotors are controlled by a closed-loop control system which monitors and synchronizes the angular and linear position of the disk. Through such control, the disk rotation speed may be modulated in conjunction with the linear oscillation, thereby allowing a higher degree of triangularity in the texturization pattern. A pattern generation system and a graphical user interface for specifying, modeling, generating, modifying and displaying disk texturizing patterns are also disclosed. The texturizing pattern may be displayed in polar plot and linear plot form so that the user can more easily visualize and design the texturizing pattern. Warning signals are used when the texturizing pattern exceeds the acceleration or amplitude limitations of the physical texturizing apparatus, or when the designed pattern repeats. The pattern generation system may also be used to generate a data sequence describing a particular pattern which is exportable to the physical disk texturizing apparatus.