摘要:
A spindle assembly includes a power source interface configured to be operably coupled to a power bus and power the spindle assembly via the power bus, a spindle controller comprising processing circuitry, a diagnostic switch assembly operably coupled to the spindle controller and operably coupled to a logic supply bus, and a working apparatus comprising a motor and a spindle operably coupled to the spindle controller. The working apparatus may be controllable by the spindle controller to act upon a work piece to perform a work task. The processing circuitry of the spindle controller may be configured to receive a fault localization instruction rom a bus control device operably coupled to the logic supply bus, and control the diagnostic switch assembly to determine a presence and a location of a fault on the logic supply bus.
摘要:
A controller for a machine tool includes a converter converting AC power on the power supply side to DC power, a feed-shaft motor inverter converting DC power on a DC link side and AC power on a feed shaft motor side, first and second main-shaft-motor inverters converting DC power on the DC link side and AC power on first and second main shaft motors side, a power failure detection unit detecting a power failure on the power supply side, a voltage detection unit detecting a DC link voltage value, a feed-shaft-motor command unit outputting a deceleration command to the feed-shaft-motor inverter upon a power failure, and a main-shaft-motor command unit outputting an acceleration/deceleration command to the first main-shaft-motor inverter in accordance with the DC link voltage value and a power shutoff command to the second-main-shaft-motor inverter upon a power failure.
摘要:
A control apparatus includes a converter for converting an AC voltage to a DC voltage, a feed shaft motor inverter for converting the DC voltage to an AC voltage for a feed shaft motor, a main spindle motor inverter for converting the DC voltage to an AC voltage for a main spindle motor, a power outage detection unit for detecting a power outage of the AC power supply, a voltage detection unit for detecting the DC voltage, and a control unit which, upon power outage of the AC power supply side, outputs a feed shaft motor deceleration command to the feed shaft motor inverter and outputs, to the main spindle motor inverter, a main spindle motor acceleration command when a DC voltage is greater than an upper limit and a main spindle motor deceleration command when the DC voltage is less than a lower limit.
摘要:
The invention provides systems, methods, and devices relating to the provision of system-wide coordinated control voltage regulation support in power transmission and distribution networks using multiple inverter based power generation facilities, which are coupled to the power transmission and distribution networks for minimizing transmission and distribution line losses. The invention uses a novel control method of inverter based Distributed Generators as Static Synchronous Compensator (STATCOM) in a way that provides a dynamic voltage regulation/control with the inverter capacity remaining after real power generation, thereby decreasing system line losses.
摘要:
Disclosed is a servo motor with a built-in drive circuit according to the present invention in which, when power is off, positional data including multiple-rotation counting values is stored in a nonvolatile memory to thereby eliminate battery back-up, and in which the CPU of a drive control circuit portion is in charge of the multiple-rotation counting itself to thereby eliminate the circuit for multiple-rotation counting. Due to a reduction in the number of lines involved and an elimination of battery back-up, a reduction in size is achieved. A servo motor with a built-in drive circuit according to the present invention includes an absolute encoder (30) for detecting rotation of a servo motor portion (100) and an electromagnetic mechanical brake (20), in which, when the power is off, the positional data (30A) at that time is stored in a nonvolatile memory.
摘要:
An optical system has an optical image projected on an analog memory, such as a CCD array, generating analog charge signals in the analog memory. The analog charge signals are processed with an analog to digital converter to generate digital information. The digital information is processed with an integrated circuit frequency domain processor to generate frequency domain information. The frequency domain information can be stored in an output memory and can be communicated to a remote location. An image can be displayed in response to the stored analog image information and in response to the frequency domain information. A machine can be controlled in response to the frequency domain information.
摘要:
A filtering system is provided for acquiring and processing signals using a sampled filter for signal separation and signal enhancement; such as for determing locations, distances, and times in a geophysical exploration system. Signature signals permit mixing and seperation with sampled filters, such as for sharing common circuitry and for increasing the amount of acquired information. A sampled filter, such as a digital correlator, is provided for generating high resolution output data in response to low resolution input data processed with low resolution computation circuits. A real-time time-domain correlator is provided with single-bit resolution computational elements to provide improved correclation filtering. A high speed real-time correlator is provided to enhance signals with copositing-after-correlation and with correlation using a plurality of correlation operators.
摘要:
A filter display system is provided for displaying filtered information. Input signals are multiplied by reference signals and summed to generate filtered signals for display. In an on the fly processing configuration, an input signal sample is processed in response to a plurality of reference samples before processing of other input signal samples. Various memory configurations are used to store signal samples; including RAMs, ROMs, and CCD memories. Processing is performed with various resolutions, including single-bit sample processing and multi-bit sample processing. Processing gain is used to provide processed signal samples having resolution better than the resolution of input signal samples. A display is provided that iteratively improves the displayed information as the filtering progresses. A pipeline configuration uses hardware for progressive processing of signal samples. An iterative configuration is implemented with a computer processing signal samples in iterative form. A hardware configuration uses address counters to process samples. Processing in response to a display synchronization signal provides synchronization between a processor and a display.
摘要:
Control of illumination with illumination amplifier devices provides a basis for implementing various types of illumination systems. Also illumination amplifiers in closed illumination servo loops provide improved illumination control. An illumination control system provides precise control of camera operations for photographic and photoplotter applications. Illumination amplifier devices are used in conjunction with electronic control circuits to provide flexibility and precision in camera systems, reducing reliance on prior art mechanical devices.Illumination control circuits are presented in the form of digital gates and flip-flops and in the form of analog computational elements to provide illumination computer systems. In addition, a batch fabricated illumination computer arrangement is presented for improved implementation of illumination control systems.Illumination amplifiers are further configured for control of illumination in buildings and automobiles. Various types of devices such as windows, shutters, shades and visors are configured with illumination amplifiers to provide electronic control of illumination.Batch fabricated display arrangements are provided having an illumination source integral with an illumination amplifier for low cost, small volume, and flexibility. Also, colored display arrangements are provided for control of colors with illumination amplifier devices.A projection illumination amplifier arrangement is provided having high-intensity large-screen capability and heat transfer design for cooling.
摘要:
A control apparatus for machine tools is provided which comprises a pulsed digital difference detector having one input connected to a digital branch and having a second input connected to a follower drive and having an output, an adding register having its input connected to the output of the pulsed digital difference detector, an analog nominal value source having its control input connected to the output of the adding register, and an analog branch having an input connected to the analog nominal value source and having its output connected to the input of the follower drive. A drive motor for the tool provides a signal to the digital branch and a drive motor for the blank forms part of the follower drive. The drive motor for the tool is a d.c. motor coupled to a velocity pickup, and cooperating with means for withdrawing the tool and a distance pickup coupled to the drive motor for the blank.