STATE DETERMINATION SYSTEM AND MACHINE TOOL

To provide a state determination system that determines an on/off state of a switch by satisfactorily detecting an open/closed state of a contact, and to provide a machine tool.SOLUTION: A state determination system 5 includes: a switch 3 having a first contact 31; a first control unit 1 that output...

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1. Verfasser: ISODA KOKICHI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a state determination system that determines an on/off state of a switch by satisfactorily detecting an open/closed state of a contact, and to provide a machine tool.SOLUTION: A state determination system 5 includes: a switch 3 having a first contact 31; a first control unit 1 that outputs a first output signal including a first eigenvalue A corresponding to the first contact 31 and has a first output terminal 15 connected to an input side of the first contact 31; and a second control unit 2 that stores a first expected value A corresponding to the first contact 31 and has a first input terminal 26 connected to an output side of the first contact 31 and inputting a first input signal when the first contact 31 is in a closed state. When the first eigenvalue A included in the first input signal matches with the first expected value A, the second control unit 2 determines that the first contact 31 is in the closed state.SELECTED DRAWING: Figure 1 【課題】良好に接点の開閉状態を検出してスイッチのオン/オフ状態を判定する状態判定システム、及び工作機械を提供する。【解決手段】状態判定システム5は、第一接点31を備えるスイッチ3と、第一接点31に対応する第一固有値Aを含む第一出力信号を出力し、第一接点31の入力側に接続した第一出力端子15を有する第一制御部1と、第一接点31に対応する第一期待値Aを記憶し、第一接点31の出力側に接続してあり、第一接点31が閉状態である場合に第一入力信号を入力する第一入力端子26を有する第二制御部2とを備え、第二制御部2は、前記第一入力信号が含む第一固有値Aが第一期待値Aと一致する場合に、第一接点31が閉状態であると判定する。【選択図】図1