OPERATION SYSTEM OF VARIABLE-SPEED DRIVING DEVICE

申请公布号：JPS6481690(A)

申请号：JP19870235744

申请日期：1987.09.19

申请公布日期：1989.03.27

申请人：

YASKAWA ELECTRIC MFG CO LTD

发明人：RYU HIDETOSHI

分类号：H02P25/04;H02P23/00;H02P27/06

主分类号：H02P25/04

摘要：PURPOSE:To meet flexibly with various operating method and speed control, by storing a plurality of software libraries to in a storage past in a variable speed driving device and by providing terminals to select the sequence function to control circuit terminals. CONSTITUTION:In a PROM 2 each constant for sequence and multiple software libraries are stored. To a sequence input port 5 provided are input terminals I1-I4 to select a software library. A microcomputer 1 selects a software library from the PROM 2 in accordance with the selective signal from terminals I1-I4, and gives it to a PWM waveform generation circuit 7 through a RAM 3 and a nonvolatile storage cell 4. The PWM waveform generation circuit 7 outputs a PWM control signal of an inverter 9 in accordance with the input signal.

Method of forming a MOS-controllable power semiconductor device for use in an integrated circuit

1,2-substituted 2,3-dehydro-1H-5,9-dioxyacyclohepta[f]inden-7-ones and 7-substituted benzo[b]dioxepin-3-ones

Method of fabricating a polysilicon layer

Apoptotic EBV-transformed lymphocytes, a therapeutic agent for post-transplant lymphoproliferative disorder

Ultimate brush

Curable resin compositions and process for preparing oligomers containing acrylate groups and substituted methacrylate groups

Alumina insulation for coating implantable components and other microminiature devices

Foldably constructed force-resisting structures

Compact disposable finger-mount toothbrush

Retractable hanger

Aqueous dispersion, process for producing the same, and use

Method of manufacturing an electromagnetic relay

Image capturing system

MIM capacitor structure and method of fabrication

Method and apparatus for manufacturing motor coil

Image retrieval apparatus and image retrieving method

Monolithic integration of cylindrical solar cells

Method and system for detecting a property of a pavement by measuring gamma-radiation

Methods and apparatuses for delivering a volatile component via a controlled exothermic reaction

Tubing bender and method