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公开(公告)号：EP1748337A2
公开(公告)日：2007-01-31
申请号：EP06117983.4
申请日：2006-07-27
申请人： JTEKT CORPORATION
IPC分类号： G05B19/05
CPC分类号： G05B19/058 , G05B2219/15089 , G05B2219/21155 , G05B2219/21169 , Y10T307/826
摘要： A safety PLC having duplex power supply circuits, includes: a first output-stage transistor; a first DC power supply that drives the first output-stage transistor; a second output-stage transistor; a second DC power supply that drives the second output-stage transistor; a signal transfer path that includes a resistor and connect the first output-stage transistor to the second output-stage transistor; and a pair of overvoltage protection units, each of which is disposed between a pair of output terminals of the corresponding one of the first and second DC power supplies and restricts the maximum value of an output potential difference between the pair of output terminals.
摘要翻译： 一种具有双工电源电路的安全PLC，包括：第一输出级晶体管; 驱动第一输出级晶体管的第一直流电源; 第二输出级晶体管; 驱动第二输出级晶体管的第二直流电源; 信号传送路径，其包括电阻器并将第一输出级晶体管连接到第二输出级晶体管; 以及一对过电压保护单元，每个过电压保护单元设置在第一和第二直流电源中的相应一个的一对输出端子之间，并且限制该对输出端子之间的输出电位差的最大值。
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公开(公告)号：EP3311231A1
公开(公告)日：2018-04-25
申请号：EP16730705.7
申请日：2016-06-02
发明人： TONET, Richard
IPC分类号： G05B19/042 , G05B19/05 , G06F1/30
CPC分类号： G05B19/058 , G05B2219/15089
摘要： The invention relates to an electrical power supply system for a programmable logic controller, comprising: - a first electrical power supply module (1) configured in a master mode for supplying at least one electrical supply voltage to the programmable logic controller, - a second electrical power supply module (2) configured in slave mode for supplying said electrical supply voltage to the programmable logic controller in the event of failure of the first electrical power supply module, - a control module arranged to temporarily control the switching of the first electrical power supply module (1) into slave mode and the switching of the second electrical power supply module (2) into master mode, - a test module arranged for testing the second electrical power supply module (2) when same is switched into master mode.
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公开(公告)号：EP1748337A3
公开(公告)日：2009-02-25
申请号：EP06117983.4
申请日：2006-07-27
申请人： JTEKT CORPORATION
IPC分类号： G05B19/05
CPC分类号： G05B19/058 , G05B2219/15089 , G05B2219/21155 , G05B2219/21169 , Y10T307/826
摘要： A safety PLC having duplex power supply circuits, includes: a first output-stage transistor; a first DC power supply that drives the first output-stage transistor; a second output-stage transistor; a second DC power supply that drives the second output-stage transistor; a signal transfer path that includes a resistor and connect the first output-stage transistor to the second output-stage transistor; and a pair of overvoltage protection units, each of which is disposed between a pair of output terminals of the corresponding one of the first and second DC power supplies and restricts the maximum value of an output potential difference between the pair of output terminals.
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